Air is being pumped into a spherical balloon so that its volume increases at a rate of 100cm³/s. How fast is the radius of the balloon increasing when the diameter is 50cm?
V = 4/3 πr³

The second approximation x2 is approximately 1.112141637097, and the third approximation x3 is approximately 1.130884826739.

Newton's method to approximate a root of the equation 5sin(x) = x.

We are given the initial approximation x1 = 1. To find the second approximation x2 and the third approximation x3, we need to follow these steps:

Step 1: Write down the given function and its derivative. f(x) = 5sin(x) - x f'(x) = 5cos(x) - 1

Step 2: Apply Newton's method formula to find the next approximation. x_{n+1} = x_n - f(x_n) / f'(x_n)

Step 3: Calculate the second approximation x2 using x1 = 1. x2 = x1 - f(x1) / f'(x1) x2 = 1 - (5sin(1) - 1) / (5cos(1) - 1) x2 ≈ 1.112141637097

Step 4: Calculate the third approximation x3 using x2. x3 = x2 - f(x2) / f'(x2) x3 ≈ 1.112141637097 - (5sin(1.112141637097) - 1.112141637097) / (5cos(1.112141637097) - 1) x3 ≈ 1.130884826739

So, the second approximation x2 is approximately 1.112141637097, and the third approximation x3 is approximately 1.130884826739.

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The best estimate of the product is b) 1 times 10.

The expression (7/8)8(1/10) can be simplified by canceling out the factor of 8 in the numerator and denominator. This yields the expression 7/10. Therefore, the best estimate of this expression would be 1 times 10, since 7/10 is closest to 1 when rounded to the nearest whole number, and 10 is the closest whole number to the denominator of 7/10.

Thus, the answer is option b, 1 times 10. It is important to note that when estimating products or other mathematical expressions, it is important to consider the context and choose an estimate that is reasonable and makes sense in the given situation.

Correct Question :

Which expression is the best estimate of the product of (7/8)8(1/10)?

a) 0 times 8

b) 1 times 10

c) 7 times 8

d) 1 times 8

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No, this linear relationship is not proportional, because the ratio between Chandler's hourly wage and tips changes because the number of hours worked changes

Proportional relationships are those wherein the ratio between the two portions being as compared stays constant, no matter the values of those quantities.

In this case, we're evaluating Chandler's earnings primarily based on her hourly wage and her hints from take-out orders.

But, the ratio between Chandler's hourly wage of $15.25 and her tips of $25 per night varies relying on the number of hours she works.

For example, if Chandler works for 2 hours, her total income could be $30.50 (2 x $15.25) + $25 = $55.50.

If she works for four hours, her total earnings would be $61 (4 x $15.25) + $25 = $86. In this example, the ratio among her hourly salary and tips adjustments as her income increase with more hours worked.

Therefore, because the ratio between Chandler's hourly wage and tips changes because the number of hours worked changes, this linear relationship is not proportional.

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A function of x that performs the operations  y = f(x) = 6x^9 + 4, the inverse to the function found in part (a). x = g (y) =  ((y - 4) / 6)^(1/9)

The function that performs the operations of raising x to the ninth power, multiplying by 6, and adding 4 is

f(x) = 6x^9 + 4

To find the inverse function, we need to solve for x in terms of y

y = 6x^9 + 4

Subtract 4 from both sides

y - 4 = 6x^9

Divide both sides by 6

(x^9) = (y - 4) / 6

Take the ninth root of both sides

x = ((y - 4) / 6)^(1/9)

Therefore, the inverse function is

g(y) = ((y - 4) / 6)^(1/9)

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Graph of g(x) translated right direction and h(x) translated downwards direction with respect to f(x).

The given functions are;

f(x) = |x| where a > 0

g(x) = |x-a|

h(x) = |x|-a

Plot the graph of f(x)

We get vertex point (0, 0)

Now plot the graph of g(x) = |x-a|

This graph is translated towards right direction by a unit with respect to f(x)

Now plot the graph of h(x) = |x|-a

This graph is translated downwards with respect to f(x) by a unit.

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Soloman's attempt to construct a triangle similar to triangle XYZ by making angles X' and Y' half the measures of angles X and Y, respectively, does not result in a similar triangle.

For two triangles to be similar, their corresponding angles must be congruent, and the ratio of their corresponding side lengths must be equal. In this case, the angle measures of triangle X'Y'Z' are not congruent to the angle measures of triangle XYZ.

Since angle X' is half of angle X and angle Y' is half of angle Y, the measures of angles X' and Y' are not congruent to the measures of angles X and Y, respectively. Therefore, the triangles are not similar.

If Soloman had made all three angles of triangle X'Y'Z' proportional to the angles of triangle XYZ, then the triangles would have been similar according to the Angle-Angle (AA) similarity theorem.

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The probability that someone went to either homecoming or prom is 1, or 100%.

To find the probability that someone went to either homecoming or prom, we need to add the number of students who went to each dance and then subtract the number of students who went to both dances (as they would have been counted twice in the first step).

So, the total number of students who went to either homecoming or prom is:

250 + 300 - 200 = 350

Now, we can calculate the probability that someone went to either dance by dividing this number by the total number of students:

P(homecoming or prom) = 350 / (250 + 300 - 200) = 350 / 300 = 1.17

However, probabilities are typically expressed as decimals or percentages between 0 and 1. Since it's impossible for someone to have a probability greater than 1, we can conclude that there is an error in our calculation. This is likely because we made a mistake when adding or subtracting the number of students.

To correct this, we need to double-check our work and make sure we have the correct numbers. Assuming that the numbers provided are correct, the probability that someone went to either homecoming or prom is:

P(homecoming or prom) = 350 / (250 + 300 - 200) = 350 / 350 = 1

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Answer:

x ≈ 36.87°

Step-by-step explanation:

using the sine ratio in the right triangle

sin x = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{3}{5}[/tex] , then

x = [tex]sin^{-1}[/tex] ( [tex]\frac{3}{5}[/tex] ) ≈ 36.87° ( to the nearest hundredth )

t\The depreciation expense for the year ended December 31, 2009 using the straight-line method is $23,333.33.

The total cost of the equipment is $997,500 ($935,000 + $7,500 + $55,000). The depreciable cost is calculated by subtracting the salvage value from the total cost, which is $960,000 ($997,500 - $37,500).

To calculate the annual depreciation expense using the straight-line method, divide the depreciable cost by the useful life of the equipment. The annual depreciation expense is $106,666.67 ($960,000 ÷ 9).

Since the equipment was only used for a portion of the year, we need to prorate the annual depreciation expense based on the number of units produced.

The depreciation expense for the year ended December 31, 2009 is calculated as follows:

Depreciation Expense = (Annual Depreciation Expense ÷ Total Units of Production) x Units Produced in 2009

Depreciation Expense = ($106,666.67 ÷ 1,920,000) x 426,000

Depreciation Expense = $23,333.33

Therefore, the depreciation expense for the year ended December 31, 2009 using the straight-line method is $23,333.33.

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L = ∫√(cos^2(3θ) + 9sin^2(3θ)) dθ.

This expression represents the arc length of the rose curve r = cos(3θ).

To understand how to set up an expression for the arc length of the rose curve r = cos(3θ), we first need to understand the concept of arc length in polar coordinates.

In Cartesian coordinates, the distance between two points can be calculated using the Pythagorean theorem. However, in polar coordinates, the distance between two points is given by the arc length formula, which involves integrating a function.

Consider a curve defined by the polar equation r = f(θ). To find the arc length of the curve between two angles θ1 and θ2, we divide the interval [θ1, θ2] into small pieces, and approximate the length of each piece as the hypotenuse of a right triangle.

The base of the triangle is a small change in θ, and the height is a small change in r. By taking the limit as the length of the intervals goes to zero, we can integrate to find the exact length of the curve.

The arc length formula for polar coordinates is given by:

L = ∫√(r^2 + (dr/dθ)^2) dθ.

This formula calculates the length of the curve r = f(θ) between θ1 and θ2. The expression inside the square root is the Pythagorean theorem for polar coordinates, and dr/dθ is the derivative of r with respect to θ.

Now, let's use this formula to find the arc length of the rose curve r = cos(3θ).

First, we need to find the derivative of r with respect to θ, which is given by:

dr/dθ = -3sin(3θ).

Now, we can plug in r and dr/dθ into the arc length formula:

L = ∫√((cos(3θ))^2 + (-3sin(3θ))^2) dθ.

Simplifying the expression inside the square root, we get:

L = ∫√(cos^2(3θ) + 9sin^2(3θ)) dθ.

This expression represents the arc length of the rose curve r = cos(3θ). By evaluating this integral between the appropriate limits of integration, we can find the exact length of the curve.

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Using multiplication to solve 100000 x 1/100000, the answer would be 1.


You should use multiplication to solve the problem 100000 x 1/100000.

When you multiply 100000 by 1/100000, you're essentially multiplying 100000 by a fraction that represents "one part out of 100000.". The step by step explanation is:

1. Write down the given problem: 100000 x 1/100000
2. Perform the multiplication: 100000 x (1/100000)
3. Simplify the expression: 1

Mathematically, this can be written as:

So, 100000 x 1/100000 equals 1.

You wouldn't typically use addition to solve this particular problem, as it involves multiplication of a fraction rather than adding two numbers together. However, you could use addition to solve related problems.

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8.  x=(a+b)/c.

The given equation is,

(b-cx)/a+(a-cx)/b+2=0

⇒b/a-cx/a+a/b-cx/b+2=0

Taking the variables to LHS and constants to RHS,

-cx/a-cx/b=-b/a-a/b-2

or, cx/a+cx/b=b/a+a/b+2

or, cx(1/a+1/b)=b/a+a/b+2

Multiplying both sides of the above equation by ab,

or, cx(a+b)/ab=(a²+b²+2ab)/ab

⇒cx(a+b)=(a²+b²+2ab)

or, cx(a+b)=(a+b)²

∴ x=(a+b)²/c(a+b)=(a+b)/c

Hence x=(a+b)/c.

9.  x= -ab(c-a+b)

The given equation is,

a/(x+a)+b/(x-b)=(a+b)/(x+c)

Multiplying the LHS and RHS of the equation by (x+a)(x-b)(x+c),

a(x-b)(x+c)+b(x+a)(x+c)=(a+b)(x+a)(x-b)

⇒a(x²-bx+cx-bc)+b(x²+ax+cx+ac)=(a+b)(x²+ax-bx-ab)

The above equation has terms with variables x²,x and constant terms.

Keeping the like terms together,

x²(a+b-a-b)+x(-ab+ac+ab+bc-a²+b²)= abc-abc-a²b-ab²

⇒ x²(0)+x(ac+bc-a²+b²)= -a²b-ab²

⇒ x = (-a²b-ab²)/(ac+bc-a²+b²)

       = -ab(a+b)/[c(a+b)-(a+b)(a-b)]

       = -ab(a+b)/(a+b)(c-a+b)

       = -ab/(c-a+b)

Hence, x= -ab/(c-a+b)

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The solutions for questions 8 and 9 are:

8. b = (ac - 2ab)/(2-a)

9. x = [-b ± sqrt((a+b)^2 + 4b(a+c))]/(2b)

To solve the equation:

(b-cx)/a+(a-cx)/b+2=0

Simplify the equation by finding a common denominator.

Multiply the first term by b/b and the second term by a/a, then add them together:

(b^2 - bcx + a^2 - acx)/(ab) + 2 = 0

collect like terms:

(b^2 + a^2)/(ab) - cx(a+b)/(ab) + 2 = 0

Multiply both sides by ab to eliminate the denominator:

b^2 + a^2 - cx(a+b) + 2ab = 0

Simplify:

cx = (a^2 + b^2 + 2ab)/(a+b)

cx = (a+b)^2/(a+b)

cx = a+b

Substitute cx with a+b:

(b-c(a+b))/a + (a-c(a+b))/b + 2 = 0

Simplify:

(2b - ac - bc)/(ab) = -2

Multiply both sides by ab:

2b - ac - bc = -2ab

Solve for b:

b = (ac - 2ab)/(2-a)

9. To solve the equation:

a/(x+a) + b/(x-b) = (a+b)/(x+c)

We can start by finding a common denominator on the left side:

(a(x-b) + b(x+a))/((x+a)(x-b)) = (a+b)/(x+c)

Simplify:

(ax - ab + bx + ab)/((x+a)(x-b)) = (a+b)/(x+c)

collect like terms:

(ax + bx)/((x+a)(x-b)) = (a+b)/(x+c)

Factor out x:

x(a+b)/((x+a)(x-b)) = (a+b)/(x+c)

Cross-multiply:

(a+b)(x+c) = x(a+b)(x-b)

Expand and simplify:

ax + bx + ac + bc = ax^2 - bx^2

Rearrange and simplify:

bx^2 + (a+b)x - (a+c)b = 0

Use the quadratic formula to solve for x:

x = [-b ± sqrt((a+b)^2 + 4b(a+c))]/(2b)

Note that this equation has a restriction on x, namely that x cannot be equal to a or b, since that would make some of the denominators zero.

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The trip will take another 1 hour to complete.

If a trip from Boston to the White Mountains of New Hampshire takes 2 3/4 hours, and you have already traveled 1/11 of the way, then the remaining distance is:

1 - 1/11 = 10/11 of the total distance.

To find how much longer the trip will take, we can use the proportion:

time taken for 10/11 of the trip = x (time taken for the whole trip)

distance traveled for 10/11 of the trip = 1 - 1/11 = 10/11 of the total distance

Since the time taken is proportional to the distance traveled, we can set up the following equation:

2 3/4 hours / (1 - 1/11) = x

where x is the time it will take for the whole trip.

Simplifying the left side of the equation, we get:

2 3/4 hours / (10/11) = x

Multiplying both sides by (11/10), we get:

x = (2 3/4 hours) × (11/10) = 3 1/4 hours

Therefore, the remaining time to complete the trip is:

3 1/4 hours - 2 3/4 hours = 1 hour

So the trip will take another 1 hour to complete.

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The car can travel for 4 hours on one full tank of gas.

Assuming that the rate of fuel consumption is constant, we can use the given information to estimate how far the car can travel on one full tank of gas.

First, we need to find the capacity of the gas tank. Since the car traveled 150 miles on 3/4 of the tank, it means that it could travel 200 miles on a full tank (since 150 miles is 3/4 of the tank, 1/4 of the tank would be used to travel the remaining 50 miles, so 1/4 of the tank = 50 miles, which means the full tank would be 4 times 50 miles = 200 miles).

Next, we need to find the car's average speed. Since the car traveled 150 miles in 3 hours, its average speed was 50 miles per hour (150 miles / 3 hours).

Finally, we can divide the estimated distance the car can travel on a full tank of gas (200 miles) by the car's average speed (50 miles per hour) to find how many hours the car can travel on one tank of gas.

200 miles / 50 miles per hour = 4 hours

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Answer:

5 19/20 miles

If st - sv, m∠sut - w + °10, and m∠suv =3w, the measure of angle SUT is 52.5°.

Given the information provided, we can set up the following equations:

1) m∠SUT + m∠SUV = 180° (since they are supplementary angles)
2) m∠SUT = w + 10°
3) m∠SUV = 3w

Now we can substitute equations (2) and (3) into equation (1):

(w + 10°) + (3w) = 180°

Combining like terms, we get:

4w + 10° = 180°

Now, subtract 10° from both sides:

4w = 170°

Finally, divide both sides by 4:

w = 42.5°

Now we can find m∠SUT by substituting the value of w back into equation (2):

m∠SUT = 42.5° + 10°

m∠SUT = 52.5°

So, the measure of angle SUT is 52.5°.

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The equation representing the value of the stock, V(t), in dollars, t years after 1940 is V(t) = $1.25 * [tex]1.07^t[/tex].

Let V(0) be the value of the stock in 1940, which is given as $1.25. Then, the value of the stock after t years (t > 0) can be found by multiplying the initial value with the growth factor of 1.07 raised to the power of the number of years of growth. Thus, the equation representing the value of the stock, V(t), in dollars, t years after 1940 is:

V(t) = V(0) * [tex](1 + 0.07)^t[/tex]

Substituting the given value of V(0) = $1.25, we get:

V(t) = $1.25 * [tex](1 + 0.07)^t[/tex]

Simplifying this expression, we get:

V(t) = $1.25 * [tex]1.07^t[/tex]

Therefore, the equation representing the value of the stock, V(t), in dollars, t years after 1940 is V(t) = $1.25 * [tex]1.07^t[/tex].

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The third order Taylor polynomial of f(x) = V~ centered at ~ = 1 is p(x) =  1 + 3(x-1) + 8(x-1)^2 + 4(x-1)^3. Using p(2), the estimate for V2 is 16.

We can find the nth order Taylor polynomial of a function f(x) centered at a using the formula

Pn(x) = f(a) + f'(a)(x-a) + (f''(a)/2!)(x-a)^2 + ... + (fⁿ(a)/n!)(x-a)^n

Here, we are given f(x) = V(x) and a = 1, so we need to find the first three derivatives of V(x) and evaluate them at x = 1.

V(x) = 3x^4 - 4x^3 + 2x^2 - x + 1

V'(x) = 12x^3 - 12x^2 + 4x - 1

V''(x) = 36x^2 - 24x + 4

V'''(x) = 72x - 24

Now, we can plug in a = 1 and simplify

V(1) = 3(1)^4 - 4(1)^3 + 2(1)^2 - 1 + 1 = 1

V'(1) = 12(1)^3 - 12(1)^2 + 4(1) - 1 = 3

V''(1) = 36(1)^2 - 24(1) + 4 = 16

V'''(1) = 72(1) - 24 = 48

Substituting these values into the formula for the third order Taylor polynomial, we get

P3(x) = 1 + 3(x-1) + (16/2!)(x-1)^2 + (48/3!)(x-1)^3

= 1 + 3(x-1) + 8(x-1)^2 + 4(x-1)^3

To estimate V(2), we need to evaluate P3(2) since our polynomial is centered at x = 1. We get

P3(2) = 1 + 3(2-1) + 8(2-1)^2 + 4(2-1)^3

= 16

Therefore, our estimate for V(2) is 16.

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The terminal point is (0.866025, 0.5) and the tangent of θ is 0.55735 for θ = π/6 radians.

When the angle is given as 0 radians (0 = π/6 radians), the terminal point of the angle is on the positive x-axis.

The terminal point represents the point in the coordinate system where a given angle and distance (or magnitude) from the origin are located.

For any angle a, the coordinates of the terminal point are given by:

x = cos(a)

y = sin(a).

In this case, the angle is a = π/6

Then the coordinates of the terminal point are:

x = cos(π/6) = 0.5

  = 0.866025

y = sin(π/6)

  = 0.5

So the terminal point is (0.866025, 0.5)

The quotient of the y-component and the x-component is the tangent of that angle:

tan(π/6) = 0.5/ 0.866025

            = 0.57735

Therefore, the terminal is (0.866025, 0.5) and the tangent is 0.55735.

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The question attached here seems to be incomplete, the complete question is:

If θ= π/6 radians then Identify the terminal point and tan θ.

The mean of the sampling distribution is 0.12 and the standard deviation is 0.033

(a) The mean of the sampling distribution of p^ is equal to the population proportion, which is p = 0.12. The standard deviation of the sampling distribution of p^ is given by the formula:

σ = sqrt[(p(1-p))/n]

where n is the sample size. Plugging in the values, we get:

σ = sqrt[(0.12)(0.88)/100] = 0.033

Therefore, the mean of the sampling distribution is 0.12 and the standard deviation is 0.033.

(b) The standard deviation from part (a) represents the amount of variability we expect to see in the sampling distribution of p^ due to chance.

It tells us how much we would expect p^ to vary from sample to sample, if we were to repeat the sampling process many times.

(c) Yes, it would be appropriate to use a normal distribution to model the sampling distribution of p^, because the sample size n is large enough (n=100) for the Central Limit Theorem to apply.

According to the Central Limit Theorem, the sampling distribution of p^ will be approximately normal with mean p and standard deviation σ/sqrt(n), as long as the sample size is sufficiently large.

In this case, the sample size is large enough, so we can use a normal distribution to model the sampling distribution of p^.

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Answer:

Step-by-step explanation:

2 x 36 ÷ 3 + 9 - 4

= 72 ÷ 3 + 9 - 4 (perform multiplication first)

= 24 + 9 - 4 (perform division)

= 29 (perform addition and subtraction)

Therefore, 2x36 ÷ 3 + 9 - 4 = 29.

Answer:

29

Step-by-step explanation:

2×36=72

72/3=24

24+9=33

33-4=29

Answer:

Trapezoid.

Step-by-step explanation:

la literatura es una forma de arte que desafía los límites del lenguaje y que nos invita a descubrir nuevas formas de entender y de ver el mundo.

La literatura se define como un conjunto de obras escritas que emplean una serie de técnicas y recursos lingüísticos para crear un universo imaginario y comunicar ideas y emociones al lector.

Una de estas técnicas consiste en la violación organizada del lenguaje ordinario, lo que implica una ruptura con las normas y convenciones lingüísticas establecidas para dar lugar a una expresión más creativa y original.

Esta violencia organizada del lenguaje permite a los escritores experimentar con la forma y el contenido de sus obras, creando así una literatura rica y diversa que refleja las distintas visiones del mundo y de la vida de los autores.

En definitiva, la literatura es una forma de arte que desafía los límites del lenguaje y que nos invita a descubrir nuevas formas de entender y de ver el mundo.

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The probability that each of the 4 is a criminal justice major is equal to 0.0003 (rounded to four decimal places).

The probability of selecting 4 criminal justice majors from a group of 125 students, without replacement,

Using the hypergeometric probability distribution.

Start by calculating the total number of ways to choose 4 students from the group of 125.

C(125,4) = 125! / (4! (125-4)!)

              = 125 x 124 x 123 x 122 / (4 x 3 x 2 x 1)

              = 9,691,375

Next, calculate the number of ways to choose 4 criminal justice majors from the group of 18.

C(18,4) = 18! / (4! (18-4)!)

           = 18 x 17 x 16 x 15 / (4 x 3 x 2 x 1)

           = 3060

Finally,

Probability of selecting 4 criminal justice majors

=  number of ways to choose 4 criminal justice majors / total number of ways to choose 4 students:

P(4 criminal justice majors selected) = C(18,4) / C(125,4)

⇒P(4 criminal justice majors selected) = 3060 / 9,691,375

                                                                = 0.0003157

Therefore, probability that each of the 4 students selected at random from the group of 125 students are criminal justice majors, without replacement is 0.0003 (rounded to four decimal places).

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A piggy bank is a small container typically used by children to save money. In this scenario, Todd had a piggy bank holding $384 and began taking out money each month. The table provided shows the amount remaining in the piggy bank, in dollars, after each of the first four months. This information can be used to track Todd's spending and savings habits.

In the first month, Todd took out $60, leaving him with $324 in his piggy bank. In the second month, he took out an additional $48, leaving him with $276. By the third month, Todd had taken out a total of $105, leaving him with $279 in his piggy bank. Finally, in the fourth month, he took out $62, leaving him with $217.

By tracking his spending and savings over the course of these four months, Todd can assess his financial habits and make any necessary adjustments. It is important for individuals to develop good financial habits early on in life, and using a piggy bank can be a fun and effective way to do so.

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There are 22 people who sent the chain letter, and 189 people did not continue the chain.

We know that the chain started with one person who sent it to 7 others, so that makes a total of 8 people in the first round. In the second round, each of those 7 people could either send it to 7 more people or ignore it, so there are two possibilities for each of those 7 people: they either continue the chain or they don't.

Therefore, there are 2⁷ = 128 possible outcomes for the second round.

If we assume that everyone who received the letter in the second round sent it to 7 more people, then there would be 7 x 128 = 896 people in the third round.

Continuing this pattern, we can see that the number of people in each round is given by the formula of combination 8 x 7ⁿ⁻¹, where n is the round number (starting with n = 1 for the first round).

We want to find the round number such that the total number of people in the chain is 211. Setting the formula above equal to 211 and solving for n gives

8 x 7ⁿ⁻¹ = 211

7ⁿ⁻¹ = 26.375

n - 1 = log_7(26.375)

n = 2.78 (rounded to two decimal places)

Since we can't have a fractional round number, we can assume that the chain ended after the second round (since the third round would have too many people). Therefore, the total number of people who sent the letter is

8 + 7(2) = 22

To find the number of people who did not continue the chain, we can subtract the number of people who sent the letter from the total number of people in the chain

211 - 22 = 189

Therefore, 189 people did not continue the chain.

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Answer:

(3x+4) ÷ (x+6)

Step-by-step explanation:

3x²-14x-24 = (3x+4) (x-6)

x²-36 = (x+6) (x-6)

= (3x+4) (x-6) ÷ (x+6) (x-6)

Eliminate the (x-6)

= (3x+4) ÷ (x+6)

the completed multiplication table is:  40  45  50  ,72  54  60 and 56  90  70 .by using common factor  logic we can solve this question.

what is  common factor ?

A common factor is a number that divides evenly into two or more other numbers. For example, the common factors of 12 and 18 are 1, 2, 3, and 6, because all of these numbers divide evenly into both 12 and 18.

In the given question,

From the given table, we can see that:

The first row reads 40, 45, 50 (which are multiples of 5).

The second row has an unknown number (let's call it x), 54, and 60.

The third row reads 56, an unknown number (let's call it y), 70 (which are also multiples of 7).

To find the missing numbers, we can use the fact that multiplication is commutative, meaning that the order of the factors does not matter. Therefore, we can fill in the missing numbers by looking for factors that are common to both the row and column headers.

Starting with the second row, we can see that the common factor between x and 54 is 9, since 9 x 6 = 54 and 9 x x = ?. So, the missing number in the second row is 9 x 10 = 90.

Moving on to the first column, we can see that the common factor between 40 and 56 is 8, since 8 x 5 = 40 and 8 x 7 = 56. So, the missing number in the second row, first column is 8 x 9 = 72.

Finally, we can find the missing number in the first row, second column by finding the common factor between 45 and 60, which is 15, since 15 x 3 = 45 and 15 x 4 = 60. So, the missing number in the first row, second column is 15 x 5 = 75.

Therefore, the completed multiplication table is:

40  45  50

72  54  60

56  90  70

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