The product of a number and 7 less than the number is 30. Find the number.

Answers

Answer 1

Answer:

-3 or 10

Step-by-step explanation:

[tex]x(x - 7) = 30[/tex]

[tex] {x}^{2} - 7x = 30[/tex]

[tex] {x}^{2} - 7x - 30 = 0[/tex]

[tex](x - 10)(x + 3) = 0[/tex]

x = -3 or 10


Related Questions

identify each type of tax describe. Tariff, Property, Payroll ,Income
• A tax on certain imported or exported goods. •A tax based on a percentage of an individual's income.
• A tax on wages to fund programs such as Social Security
•A tax based on the value of a home, land, or an office building​

Answers

Answer:

a tax on certain imported or exported goods is tariff

a tax based on a percentage of an individual's income is income

a tax on wages to fund programs such as Social Security is payroll

a tax based on the value of a home, land, or an office building is property

Step-by-step explanation:

Please help me find the area of this irregular shape.

Answers

Answer:

23 Cm(2)

Step-by-step explanation:

Sincerest Apologies if it is incorrect

if it's not 23 it may be:

26 Cm(2)

If you divide me by 42, the
quotient is 56. What number
am I?

Answers

2352

hope it helps...!!!

Answer:

2352

Step-by-step explanation:

If you divide 2352 by 42, the quotient would be 56.

This can easily be solved knowing what inverse operations are.

42 * 56 = 2352

Therefore,

2352 / 42 = 56

More info can be found searching inverse operations.

Find the point-slope equation for the line that passes through the points (5, 35) and (-6, -31). Use the first point in your equation..​

Answers

Given ↓2 points that a line passes through

To Find ↓The point-slope equation for the line

Calculations ↓

First of all, we need to find the slope. In order to find the slope, we'll use the following formula :

[tex]\boxed{\\\begin{minipage}{2cm}slope \\ $\displaystyle\frac{y2-y1}{x2-x1}$\end{minipage}}[/tex]

[tex]\boxed{\\\begin{minipage}{2cm}$\displaystyle\frac{-31-35}{-6-5}$ \\ \end{minipage}}[/tex]

[tex]\boxed{\\\begin{minipage}{2cm}$\displaystyle\frac{-77}{-11} \\ \end{minipage}}[/tex]

Which simplifies to :

[tex]\text{Slope = 7 }[/tex]

Now that we know the slope, finding the point-slope equation is a piece of cake.

Remember Point-Slope :

[tex]\text{y - y1 = m(x-x1)}[/tex]

We're told to use the first point (5, 35) in our equation, so we'll do just that.

[tex]\LARGE\text{y - 35=7(x-5)}[/tex]

[tex]\mathsf{equation\:above}[/tex]

hope helpful ~

Solve using the quadratic formula. Round answers to the nearest hundredth.
6x^2-14x-9=0

Answers

Answer:

use the quadratic formula

Step-by-step explanation:

from the equation a=6 b=-14 c=-9

from the quadratic formula

[tex]x = ( - b {+ or - } \sqrt{ {b}^{2} + 4ac} ) \div 2a[/tex]

therefore insert in the values of a, b and c

[tex]x = ( - ( - 14) + or - \sqrt{ {( - 14)}^{2} + 4 \times 6 \times ( - 9)} ) \div 2 \times 6[/tex]

x=2.858148594

X=-0.52481526

after inserting

determine the general solution​

Answers

Answer:

There is no question given here.

What is the Standard form for 10^6?

A.60
B.100,000
C.1,000,000
D.10,000,000

Answers

10^6 can be expanded as follows: 10 x 10 x 10 x 10 x 10 x 10

1 stays the same, and there are 6 zeroes (the same number as the exponent)

10^6 = 1000000

Correct Answer: C, 1000000

Hope this helps!

Answer:

C. 1,000,000

Step-by-step explanation:

10¹ = 10

10² = 100

10³ = 1,000

10⁴ = 10,000

10⁵ = 100,000

10⁶ = 1,000,000

11 4/5 divided by 3 1/5

A) 3
B) 3 1/2
C) 7/2
D) 4

Answers

Answer:

Step-by-step explanation:

The two given numbers both have the denominator 5,  Thus the quotient quickly reduces:

11 4/5 becomes 59/5 and 3 1/5 becomes 16/5.  Dividing the first expression by the second yields 59/16, which can't be reduced.

However, 59 = 48 + 11, so 59/16 = 48/16 + 11/16, which is approximately 3 1/2 (from either Answer B or Answer C).

The exact answer is 3 11/16; B and C are identical and are closer to 3 11/16 thn 3 or 4.

In the picture below, line PQ is parallel to line RS, and the lines are cut by a transversal, line TU. The transversal is not
perpendicular to the parallel lines


Which of the following are supplementary interior angles?
OA. ZG and ZF
OB. ZE and ZF
OC. ZH and G
OD X and ZE

Answers

Answer: A

Step-by-step explanation:

Hoy do you write 43% as a decimal

Answers

Answer:

0.43

Step-by-step explanation:

Just take out the % sign and divide it by 100.

For your example:

43%

Take out the percentage

43

Divide it by 100.

0.43

And there is your answer :)

Answer:

You should move the decimal 2 place

Step-by-step explanation:

43/100 = 0.43

Find the value of x.

Answers

Answer:

ok so this is a combination of the pyatrom theorm and algrebra

16^2+28^2=(x+10)^2

1040=x2+100

940=x2

x=30.66

Hope This Helps!!!

Answer:

25.1

Step-by-step explanation:

Before finding the value of x which is the base in the right triangle, we must have to find the perpendicular in the left angle triangle.

So, In the left triangle,

→ (Base)² + (Perpendicular)² = (Hypotenuse)²

→ (10)² + (Perpendicular)² = (16)²

→ (Perpendicular)² = (16)² – (10)²

→ (Perpendicular)² = 256 – 100

→ (Perpendicular)² = 156

→ Perpendicular = √(156)

→ Perpendicular = 12.4

Now, In the right triangle, we have :

→ (Base)² + (Perpendicular)² = (Hypotenuse)²

→ (x)² + (12.4)² = (28)²

→ (x)² = (28)² – (12.4)²

→ (x)² = 784 – 153.7

→ (x)² = 630.3

→ x = √(630.3)

→ x = 25.1

Therefore,

The value of x is 25.1

Enter your answer in the box.
x=



Answers

Answer:

43º

Step-by-step explanation:

Angles in a straight line = 180º so:

180 - (90+47) = 43º.

Alternate angles are equal so the x is also 43º.

will mark brainliest

Answers

Answer:

The outcomes of his 40 experiments are listed in the table, according to him there were 13 times there were two tails. Now simply multiply that times three considering the amount of expirement was tripled.

13 times 3 = 39

The fall of brainly 2019-2021
those spam bots took it over

Answers

Answer: Pop up ads show up

Step-by-step explanation: because of them

2. A light fixture contains 6 light bulbs. With normal use, each bulb has a 0.85
chance of lasting for at least 4 months. What is the theoretical probability that
all 6 bulbs will last for 4 months? Round to the nearest whole percent.

Answers

Using the binomial distribution, it is found that there is a 0.38 = 38% theoretical probability that all 6 bulbs will last for 4 months.

What is the binomial distribution formula?

The formula is:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.

In this problem, we have that:

There are 6 bulbs, hence n = 6.Each bulb has a 0.85 chance of lasting for at least 4 months, hence p = 0.85.

The probability that all 6 bulbs will last for 4 months is P(X = 6), hence:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 6) = C_{6,6}.(0.85)^{6}.(0.15)^{0} \approx 0.38[/tex]

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Segment AB has endpoints at A(-7,2) and b(9,-6). Point P lies on AB such that AP:BP=3:1

Determine the coordinates of P

Answers

The coordinates of the point P which divides the line segment AB made by the points A(-7,2) and B(9,-6) is  (x,y) = (5,-4)

What is the coordinate of the point which divides a line segment in a specified ratio?

Suppose that there is a line segment [tex]\overline{AB}[/tex]such that a point P(x,y) lying on that line segment [tex]\overline{AB}[/tex] divides the line segment  [tex]\overline{AB}[/tex] in m:n, then, the coordinates of the point P is given by:

[tex](x,y) = \left( \dfrac{mx_2 + nx_1}{m+n} , \dfrac{my_2 + ny_1}{m+n} \right)[/tex]

where we have:

the coordinate of A is [tex](x_1, y_1)[/tex]and the coordinate of B is [tex](x_2, y_2)[/tex]

We're given that:

Coordinate of A is [tex](x_1, y_1)[/tex] = (-7,2)Coordinate of B is [tex](x_2, y_2)[/tex] = (9.-6)The point P lies on AB such that AP:BP=3:1 (so m = 3, and n = 1)

Let the coordinate of P be (x,y), then we get the values of x and y as:

[tex](x,y) = \left( \dfrac{mx_2 + nx_1}{m+n} , \dfrac{my_2 + ny_1}{m+n} \right)\\\\(x,y) = \left( \dfrac{3(9) + 1(-7)}{3+1} , \dfrac{3(-6) + 1(2)}{3+1} \right)\\\\(x,y) = \left( \dfrac{20}{4} , \dfrac{-16}{4} \right) = (5,-4)[/tex]

Thus, the coordinates of the point P which divides the line segment AB made by the points A(-7,2) and B(9,-6) is  (x,y) = (5,-4)

Learn more about a point dividing a line segment in a ratio here:

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what is (-3) X (5-7) - (39/3)

Answers

Answer:

-7

Step-by-step explanation:

(-3)×(5-7)-(39/3)

First solve the ones within the brackets

(-3)×(-2)-13

Then solve the multiplications and the divisions

6-13

= -7

Giovanni left the house for 240 seconds. How many minutes was Giovanni gone?

Answers

Answer:

4 minutes

Step-by-step explanation:

There are 60 seconds in 1 min

240÷60=4


35-36 Use a graph to find approximate [tex]x[/tex] -coordinates of the points of intersection of the given curves. Then use your calculator to find (approximately) the volume of the solid obtained by rotating about the [tex]x[/tex] -axis the region bounded by these curves.
36. [tex]y=\sqrt[3]{2 x-x^{2}}, \quad y=x^{2} /\left(x^{2}+1\right)[/tex]

Answers

The approximate x-coordinates of the points of intersection of the given curves are 0 & 1.76, and the volume of the solid when rotated about the x-axis is 3.15 cubic units

Part A: The points of intersection

The equations are given as:

y = ∛2x - x²

y = x²/(x² + 1)

See attachment for the graph of the above curves (equation)

From the attached curve, we have the following points of intersection

(x,y) = (0,0) and (1.76,0.76)

Remove the y coordinates

x = 0 and 1.76

Hence, the approximate x-coordinates of the points of intersection of the given curves are 0 and 1.76

The volume of the solid when rotated about the x-axis

The volume of the solid is calculated using:

V = π(R² - r²)

Where R and r are the outer and the inner radii, respectively.

In this case;

R = ∛2x - x²

r = x²/(x² + 1)

Using a calculator, we have:

V = 3.15

Hence, the volume of the solid when rotated about the x-axis is 3.15 cubic units

Read more about volumes at:

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Hey y’all no bots pls I need help with some 7th grade math

Answers

Answer:

The ratio for the triangle on the left is

9/12 which is .75

Just multiply 16 by .75 and the missing angle is 12


A total of $5000 is invested: part at 7 % and the remainder at 15 %. How much is invested at each rate if
the annual interest is $480?

Answers



0.07 (5000-x) + 0.15x= 480
Solve for x
350-0.07x+0.15x=480
0.08x=130
X=1625 invested at 15%
(5000-1625)=3375 invested at 7%



From standard deck of 52 cards. In how many ways may we select 4 cards such that exactly 2 are face cards?​

Answers

Answer:

87,516 ways

Step-by-step explanation:

Given

4 cards must be chosen from a deck of 52 cards2 of them must be face cards

Solving

2 out of 52 cards can be any combination of cards ⇒ ⁵²C₅The other 2 have to be face cards ⇒ ¹²C₂No. of ways : ⁵²C₂ x ¹²C₂52 x 51 x 1/2 x 12 x 11 x 1/226 x 51 x 6 x 1187,516 ways

Answer:

Putangina mo tama naman yung sa taas eh

Which of the function rules below would result in the following graph? On a coordinate plane, a line goes through (2, 2) and (6, 4). a. y = 0.5 x + 1 c. y = 2 x + 1 b. y = 0.5 x minus 1 d. y = two-thirds x + 1 Please select the best answer from the choices provided A B C D

Answers

A)

m= (y2-y1)/(x2-x1)= 0.5
y=mx+b
At point (2,2)
2=0.5*2+b
=b=2
So, equation is
y=0.5x+1

In the xy-plane, line k is parallel to the line with equation Y=7x+5. Which of the following could be an equation of line k??

Answers

Any equation that starts with y =7x

Parallel lines have the same gradient.

(No options to choose from)

Hope this helps!

Any Equation start with y = 7x + c is parallel to given equation.

What is Parallel lines?

To determine whether or not two lines are parallel, the formula for parallel lines is used. When we have the slopes of two lines that we want to compare, we can use the parallel line formula. The parallel lines' distances never change.

Given Equation

y = 7x + 5

and line k

line k is parallel  to equation y = 7x + 5

for parallel lines

The formula for determining whether two lines are parallel is as follows for any two lines with the equations y = m₁ x + c₁ and y = m₂x + c₂:

where m₁ and m₂ are the slopes of the two lines. m₁ = m₂.

given equation y = 7x + 5,

here m₁ = 7 and c₁ = 5

the line which is parallel to equation should be

y = 7x + c

where m₂ = m₁ = 7 and c₂ = c

Hence equation y = 7x +c is parallel to given equation.

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Deshaun drinks 0.25 L of milk every day. How much milk does he drink in 13 days?

Answers

Answer: 3.25 L

Step-by-step explanation:

0.25 x 13 days = 3.25

study the figures below and calculate its surface area by identifying first what is the value of its base and height or length and width?

Answers

Answer:

[tex]937.5 m x^{2} \\1369 cm x^{2} \\276mx^{2} \\17500mx^{2} \\270cmx^{2}[/tex]

Step-by-step explanation:

Soulution : Area of a triangle { Area Of A Triangle = 35m x 25m x 1/2 = [tex]437.5mx^{2}[/tex]  bottom x height x 1/2 }

Area of the squear ( [tex]37cmx^{2}[/tex] ) = [tex]1369cmx^{2}[/tex]  { Area of square = ( [tex]sidex^{2}[/tex]) }

Area of the rombus 1209 x 23m = [tex]276mx^{2}[/tex]

Area of the rectangle 175m x 100m = [tex]17500mx^{2}[/tex]

Area of the parallelogram 18cm x 15cm = [tex]270cmx^{2}[/tex]

What is the domain of f(x) = √x – 4 over the set of real numbers?​

Answers

Answer:

(2) x [tex]\geq \\[/tex] 4

Step-by-step explanation:

Given the sqrt(x),  x [tex]\geq \\[/tex] zero

So, given sqrt(x -4),  x -4 [tex]\geq \\[/tex] 0

Now solve for x

x - 4 [tex]\geq \\[/tex] 0

x [tex]\geq \\[/tex] 4

Marsha is driving 605 total miles on a trip. She has already driven of the distance. How far has Marsha driven?
A. 121


B. 242


C. 363


D. 302 1/2

Answers

Answer:

605*2/5=121*2=242 miles so B would be the answer

Step-by-step explanation:

Please help me tyy!!

Answers

Answer:

aight so monkey monkey is monkey so if u put monkey and monkey together u get happy baby monkey did i explain myself?????

Step-by-step explanation:

What would be the future value of 19,378 invested now if the money remains deposited for eight years and the interest rate is 18
percent

Answers

Answer:

$72,839.17

Step-by-step explanation:

[tex]19378( {1.18}^{8} ) = 72839.17[/tex]

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