Answer:
70
Step-by-step explanation:
2 quarters are 50¢
4 dimes are 40¢
1 nickel is 5¢
if you add it all together you will get 70¢
Ignore the other questions I just need help with numbers 18 and 25 how do you work it out please help me out I would of have helped you
Answer:
25. -7/5 [tex]\leq[/tex] x [tex]\leq[/tex] 1
Step-by-step explanation:
18:
[tex]5-|x|\leq 2\\-|x| \leq -3\\|x|\leq 3\\x\geq -3[/tex]or [tex]x\leq 3[/tex]
25:
[tex]3|5x+1|-6\geq 12\\3|5x+1|\geq 18\\|5x+1|\geq 6\\x\leq -7/5[/tex]or [tex]x\geq 1[/tex]
[tex]-7/5\leq x\leq 1[/tex]
I don't think I explained this well let me know if you need more explanation.
Lynn filled each of three bags with
2 kilograms 450 grams of sand. Is the
mass of 2 bags greater than or less than
5 kilograms? Explain how you know.
10
The mass of 2 bags, which is filled by Lynn each with 2 kilograms 450 grams of sand, is less than 5 kilograms.
How to measure the weight?Weight measurement is the measurement of the heaviness of a object. The units of weight measurement are pounds, grams, kilograms etc.
There is total 1000 grams in one kilogram of weight measurement.
Lynn filled each of three bags with 2 kilograms, 450 grams of sand. There is total 1000 grams in one kilogram of weight measurement. Thus, the kilogram in 450 grams is,
[tex]x=\dfrac{450}{1000}\\x=0.45\rm\; kg[/tex]
Thus, weight in one bag is,
[tex]W=2+0.45\\W=2.45\rm\; kg[/tex]
The weight in two bags is,
[tex]2W=2.45+2.45\\2W=4.9\rm\; kg[/tex]
The weight of 4.9 kg is less than the 5 kilogram..
Thus, the mass of 2 bags, which is filled by Lynn each with 2 kilograms 450 grams of sand, is less than 5 kilograms.
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solve (x + y +2)(y + 1)
Answer:
xy + y² + 3y + x + 2
Step-by-step explanation:
(x + y + 2)(y + 1)
xy + y² + 2y + x + y + 2
xy + y² + 3y + x + 2
No more like terms, so this is final answer
BRAINLIEST please if this helped!The area of rectangle is ( 30x²y + 20xy ) cm² and its breadth is 10xy cm .Find its length.
Subtract the quotient when 20x⁴y² is divided by 5x³y from the product of 2x and 3y.
Step-by-step explanation:
1) The area of rectangle is ( 30x²y + 20xy ) cm² and its breadth is 10xy cm .Find its length....
= Solution ,
Length ( L ) = ?
breadth ( b ) = 10xy cm
area ( a ) = ( 30x² + 20xy )
Now ,
area ( a ) = l × b
or, ( 30x²y + 20xy ) = L × 10xy cm
[tex]or,\frac{30 {xy + 20xy}^{2} }{10xy} = l \\ [/tex]
[tex]or, \: l = 3 {x}^{2 - 1} + 2cm[/tex]
[tex]\boxed{\sf{l = (3x+2)cm}}[/tex]
2) Subtract the quotient when 20x⁴y² is divided by 5x³y from the product of 2x and 3y.
= Solution,
[tex] = \frac{20 {x}^{4} {y}^{2} }{5 {x}^{3} y} \\ [/tex]
[tex] = 4xy[/tex]
The product of 3x and 4y = 6xy
= 6x - 4xy
[tex] = \boxed{\sf {2xy}}[/tex]
hope it helped !!!!
A gardener is putting a fence around his garden. His garden is 6 feet long and 2 feet wide. How many feet of fence does he need?
Work Shown:
L = 6 = length
W = 2 = width
P = 2(L+W)
P = 2(6+2)
P = 2(8)
P = 16 feet of fencing is needed
An alternative formula is P = 2L+2W
9. (a) Find the slope of the tangent to the curve [tex]y=3+4 x^{2}-2 x^{3}[/tex] at the point where [tex]x=a\text{.}[/tex]
Find the slope of the tangent to the curve [tex]y=3+4 x^{2}-2 x^{3}[/tex] at the point where [tex]x=a\text{.}[/tex]
Derivatives:The derivative of a function can be determined using different rules and formulations. One of the important rules here is the power rule. Power rule is used to differentiate functions in the form of [tex]f(x) = x^n[/tex].
[tex]\; \dfrac{d}{dx} (x^n) = nx^{n-1}[/tex]
Explanation:We are supposed to find the slope of the tangent to the curve [tex]y=3+4 x^{2}-2 x^{3}[/tex] at the point where [tex]x=a[/tex].
[tex]\implies \dfrac{d}{dx}(3+4x^2-2x^3)[/tex]
[tex]\implies \dfrac{d}{dx}(0+4(2x^{2-1})-2(3x^{3-1})[/tex]
[tex]\implies \dfrac{d}{dx}(0+4(2x)-2(3x^2)[/tex]
[tex]\implies \dfrac{d}{dx}(8x-6x^2[/tex]
Now plugging [tex]x=a[/tex] in the above equation, we obtain the following results:
[tex]\implies \boxed{8a -6a^2}[/tex]
Hence, this is our required solution for this question.
Please help!!! I will give Brainliest!!!! :_D
Write an equation for each situation!
Just remember that 100% = 1.00 !
y = .78x
y = 108.5x
y = .946x
Solve for c I need answers bad please
Answer:
c = sqroot45
Put a 45 in the box under the square root.
Step-by-step explanation:
Use Pythagorean Theorem. See image.
Also, sqroot45 can be simplified. It 3root5, just in case they ask that next.
Answer:
c=√45
Step-by-step explanation:
I'm assuming this question is before Pythagorean theorem so.
Find the total area of the big square.Find the total area of the four right-angled triangles.Subtract the big square with the four right-angled triangles to find the area of the smaller square with sides 'c'.Lastly, square root (√) the value to find c. Because c²=area of smaller square.Big square area:
[tex](3 + 6) \times (3 + 6) = 81[/tex]
All four right-angled triangles area:
[tex]4( \frac{1}{2} \times 3 \times 6) = 36[/tex]
Smaller square area:
[tex]81 - 36 = 45[/tex]
Value of c:
[tex] {c}^{2} = 45 \\ c = \sqrt{45} [/tex]
I don't understand this question at all please help if you do
Answer:
Answer is [tex]\frac{4}{3}[/tex]
Step-by-step explanation:
To find the interval of x. Use our equations to equal each other.
[tex]-x^2+2x=y,y=0[/tex]
[tex]-x^2+2x=0\\-x(x-2)=0\\-x=0 , (x-2)=0\\x=0 ,2[/tex]
[tex]\int\limits^2_0 {-x^2+2x} \, dx[/tex]
Integrate.
[tex]\frac{-x^3}{3}+x^2\\(\frac{-2^3}{3}+2^2)-[\frac{-0^3}{3}+0^2]\\-\frac{8}{3} +4-0\\-\frac{8}{3}+\frac{12}{3} =4/3[/tex]
Using Desmos I have Graphs of both of the equations you have provided. The problem asks us to find the shaded region between those curves/equations.
Proof Check your interval of x.
Fraction of
[tex] \frac{200}{350} [/tex]
please give ans
4/7
Step-by-step explanation:
[tex] \hookrightarrow \sf \frac{200}{350} [/tex]
[tex]\hookrightarrow \sf \: \frac{ \sout{200}}{ \sout{350}} = \frac{\sout{100}}{\sout{175}} = \frac{4}{7} [/tex]
Therefore, [tex] \rm \frac{200}{350} [/tex] = [tex] \sf \frac{4}{7} [/tex]
THIS IS WORTH 50 POINTS WILL MARK BRAINLYEST PLEASE HELP
Use either elimination or substitution.
y = x - 4
x + y = 6
Answer:
Since x = 3, y = 1 is the solution of
x – 4y + p = 0 …………….. (i)
2x + y – q – 2 = 0 …………… (ii)
So, x = 3, y = 1 must satisfy both (i) and (ii).
⇒ 3 – 4(1) + p = 0 ⇒ p = 1.
and 2(3) + (1) – q – 2 = 0 ⇒ q = 5
Since, 1 = – 4 + 5
∴ p = 1 = – 4 + 5
= q – 4
⇒ p = q – 4
A rectangle has a length of 15 centimeters and a width of 7 centimeters. What is the area of the rectangle?
length= 15cm
width= 7cm
to find:area of the rectangle.
solution:area of rectangle= length × width
a= l × w
a= 15 × 7
= 105 cm^2
Answer:
105 cm²
Step-by-step explanation:
The formula to find the area of a rectangle is :
Area = length × width
Given that,
length ⇒ 15 cm
width ⇒ 7 cm
Let us solve it now.
Area = length × width
Area = 15 × 7
Area = 105 cm²
Write the mixed number as an improper fraction 2 1/6
Answer:
13/6 is the improper fraction
Step-by-step explanation:
Step 1: Convert the whole number into a fraction
2 is a whole number which replicates two 6/6's which adds up to 12/6
Step 2: Combine the two fractions
12/6 + 1/6
13/6
Answer: 13/6 is the improper fraction
Answer:
13/6
Step-by-step explanation:
6/6 = 1
12/6 = 2
12/6 + 1/6 =13/6
Write a proportion that can be used to convert 5 meters into kilometers.
Answer:
0.5km
Step-by-step explanation:
[tex]1km = 1000m \\ x = 50m \\ \\ 50m \times 1km = x \times 1000m \\ x = 0.5km[/tex]
What is the measure of each angle in Megan’s triangle?
m∠A =
°
m∠B =
°
m∠C =
°
Answer:
A, C and D are true statements.
Step-by-step explanation:
Megan constructed triangle ABC.
In Megan’s triangle, m∠A is represented by x°.
Therefore, ∠A = x°
For m∠B is 4 times greater than m∠A
Therefore, ∠B = 4x°
For m∠C is 30° less than 5 times m∠A.
Therefore, ∠C = 5x°-30°
ABC is a triangle.
Sum of all angles of a triangle is 180°. Angle sum property of triangle.
m∠A + m∠B + m∠C = 180°
x° + 4x° + 5x°-30° = 180°
x° = 15°
True Statements are:
A) m∠A = x°
C) m∠B = (4x)°
D) m∠C = (5x – 30)°
What percent of 29 is 3? Round to the nearest tenth or tenth of a percent
the answer is 10.3, just search up how to solve percentage word problems
Tell me all of them pelase
Answer:
Step-by-step explanation:
A=1
B=41
C=3
A cone with a height of 15 yards has a volume of
475.17 yd³. Find the diameter of the cone.
Answer:
11
Step-by-step explanation:
h = 15 yards
Volume = 475.17 cubic yards
Diameter = 5.5*2 = 11.0 = 11 yards
What is the area of Vivian's backyard
John bought 25kg of rice he used 1 3/4 kg on the first day and 4 1/2 on the second day. Find the remaining quantity of rice left
Answer:
18 3/4 kg of rice
Step-by-step explanation:
Start
John has 25 kg of RiceDay 1
He uses 1 3/4 kg of rice25 - 1 3/4 = 23 1/4 kg remainingDay 2
He uses 4 1/2 kg of rice23 1/4 - 4 1/2 = 18 3/4 kg of riceEnd
18 3/4 kg of rice4 1/4 - 5/6 I don’t understand pls help
Answer:
1/6 or 0.167
Step-by-step explanation:
First understand that 4 x 1/4 is equal to 1, then replace it in the equation
1 - 5/6
Turn the whole number into a fraction that can be computed
6/6 - 5/6
Solve the equation
6/6 - 5/6 = 1/6
If you need it as a decimal enter it in a calculator and get
0.16666666667
Since the 6 is repeating you can just round that to
0.167
Glaucoma is a disease of the eye that is manifested by high intraocular pressure. The
distribution of intraocular pressure in the general population is approximately normal with
mean 16 mm Hg and standard deviation 3.2 mm Hg. If the normal range for intraocular
pressure is between 10 and 22 mm Hg, than what proportion of the general population would
fall within this range?
A z-table is also known as the standard normal distribution table. The percentage of the population that would fall in the 10 to 22 mm Hg range is 0.9386.
What is a Z-table?A z-table also known as the standard normal distribution table, helps us to know the percentage of values that are below (or to the left of the Distribution) a z-score in the standard normal distribution.
Given the mean and the standard deviation are 16mmHg and 3.2 mmHg, therefore, the percentage of the population whose blood pressure will fall in the range of 10 to 22 mm Hg are,
[tex]P(10 < x < 22) = P(\dfrac{10-16}{3.2} < Z < \dfrac{22-16}{3.2})[/tex]
[tex]= P(-1.875 < Z < 1.875)\\\\=P(Z < 1.875)-P(Z < -1.875)\\\\= 0.9693-0.0307\\\\= 0.9386[/tex]
Hence, the percentage of the population that would fall in the 10 to 22 mm Hg range is 0.9386.
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A right triangle has side lengths 9, 40, and 41 as shown below.
B
40
Use these lengths to find cosB, tanB, and sin B.
9
Answer:
cos B = 9/41
tan B = 40/9
sin B = 40/41
Step-by-step explanation:
There is no picture, so I am making a few assumptions.
I am assuming that angle C is the right angle and is opposite 41.
I am also assuming that angle B is formed by the sides that measure 9 and 41. The hypotenuse is 41.
For angle B, the adjacent leg is 9, and the opposite leg is 40.
cos B = adj/hyp = 9/41
tan B = opp/adj = 40/9
sin B = opp/hyp = 40/41
An odd degree has no maximum or minimum?
Answer:
Polynomials of odd degree have an even number of turning points, with a minimum of 0 and a maximum of n−1 . Polynomials of even degree have an odd number of turning points, with a minimum of 1 and a maximum of n−1 .
Step-by-step explanation:
HELP ASAP!!! I NEED HELP
Answer:
B
Step-by-step explanation:
840÷8=105
Daniel has a bag that contains pineapple chews, apple chews, and watermelon chews. He performs an experiment. Daniel randomly removes a chew from the bag, records the result, and returns the chew to the bag. Daniel performs the experiment 51 times. The results are shown below:
A pineapple chew was selected 21 times.
A apple chew was selected 12 times.
A watermelon chew was selected 18 times.
Based on these results, express the probability that the next chew Daniel removes from the bag will be a flavor other than watermelon as a decimal to the nearest hundredth.
The probability that the next chew Daniel removes from the bag will be a flavor other than watermelon is 0.65
How to determine the probability?The distribution of the fruits is given as:
Pineapple = 21Apple = 12Watermelon = 18The probability that the next chew Daniel removes from the bag will be a flavor other than watermelon is:
P = (Apple + Pineapple)/Total
This gives
P = (12 + 21)/(21 + 12 + 18)
Evaluate
P = 0.65
Hence, the probability that the next chew Daniel removes from the bag will be a flavor other than watermelon is 0.65
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6. Find the measure of each angle in the figure below and explain how you found each
measure.
Step-by-step explanation:
2 = 15
because it's Vertically opposite angle(VOA)
1 = 180 -15 because it is straight line
1 = 165
1 = 3
3 = 165
because it's Vertically opposite angle(VOA)
1) How many students were all involved in the survey? A) 30 B) 40 C) 50 3) What is the size of the class interval?
Answer:
not enough information was provided
Step-by-step explanation:
However, The answer is B
Please help with this question
At a flea market, used computer games are sold at the prices shown in the table below.
Number of Games Price ($)
2 9.00
5 22.50
7 31.50
Do the number of games and price form a proportional relationship?
Choose the correct response.
A.
Yes. There is a constant of proportionality of $11.25.
B.
Yes. There is a constant of proportionality of $4.50.
C.
No. There is not a constant of proportionality.
D.
No. The slope is 4.5.
Answer:
This is the answer I understood and got.
B. Yes. There is a constant of proportionality of $4.50.
Step-by-step explanation:
When you divided 9/2, you get 4.5
When you divide 22.5/5, you get 4.5
When you divide 31.5/7, you get 4.5
* REMEMBER IT'S ASKING DO THE NUMER OF GAMES AND PRICE FOR A PROPORTIONAL RELATIONSHIP *
So, y= 4.5x