Mathematics College

Solve 3x^2 if x is 10

By the way, the x is a variable

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Answer 1

300 is your answer.......

Related Questions

This trapezoid-based right pyramid has a volume of 48 m3 what is the area?

Answers

Answer:

18m^3

Step-by-step explanation:

Khan Academy, It shows how to do the steps

7.2x14.3 what is that?

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Answer:

102.96

Step-by-step explanation:

Answer:

[tex]102.96[/tex]

Step-by-step explanation:

7 . 2

× 14 . 3

___________

²2 . 16

²28 . 80

72 . 00

____________

¹1¹02.96

Therefor, the answer is 102.96

On tax free weekend, Alyssa bought 4 pairs of blue jeans for $109.28. The cost of the jeans is proportional to the number of pairs of jeans bought. What is the constant of proportionality in terms of dollars per pair of jeans?

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Answer:

27.32

Step-by-step explanation:

109.28 ÷ 4 = 27.32

Please answer this and I will give brainliest

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Answer:

D is the right answer [(2f+2) / 2(s^3) ]

The sum of the measures of three
angles is 90°
The measure of angle M is 2x
The measure of angle N is 3x + 8
• The measure of angle Q is 7x - 2
What is the value of x?
A. 7 B. 8
C. 9
D. 6

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Answer:

Step-by-step explanation:

Equation

2x + 3x + 8 + 7x - 2 = 90

Solution

Combine like terms on the left

12x + 6 = 90 Subtract 6 on both sides

12x = 90 - 6

12x = 84 Divide by 12

x = 84/12

x = 7

Mai poured 2.6 liters of water into a partially Field pitcher. The pitcher then contained 10.4 liters what is the solution of the equation mean in the situation

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x=10.4-2.6 x is the initial volume, I think thats what you are asking for but you aren't very clear

Which of the following is true?

a. The p-value for a one-tailed test would be the same as the current p-value.
b. The p-value for a one-tailed test would be half the current p-value.
c. If this test was one-tailed instead of two-tailed g, you would reject the null.
d. If this test was one-tailed instead of two-tailed, you would still fail to reject the null.
d. The p-value for a one-tailed test would be double the current p-value.

Answers

Answer:

The correct option is c which is if this test was one-tailed instead of two-tailed, you would reject the null.

Step-by-step explanation:

a: This statement cannot be true as the p-value for a 1 tailed test is dependent on the level of significance and other features.

b: This statement cannot be true as there is no valid mathematical correlation between the p-value of the one-tailed test and the current p-value.

c: This statement is true because due to the enhanced level of significance, the null hypothesis will not be rejected.

d: This statement is inverse of statement c which cannot be true.

e: The statement cannot be true as there is no correlation between the current p-value and the p-value of 1 tailed test. The correlation exists between the values of one-tailed and two-tailed p-values.

an oil company uses cylindrical storage tanks. each tank has a radius of 14ft and is 27ft fall. what is the volume of the tank?

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Answer:

378

Step-by-step explanation:

connie poured 200 milliliters of juice into a glass from a juice carton. She then poured 225 milliliters into a second glass. What is the final change in the volume of the carton?

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Answer:

425 ml

Step-by-step explanation:

200+225= 425 ml

Jamie ran 9.3 miles in 1.5 hours. How far did she run in miles per hour?

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6.2 mph. i set up a proportion. it is right

In the past year and a half, Gnarly the dog lost an average of 2/9 pound each month. Today, Gnarly weighs 14 pounds. How much did Gnarly weigh a year and a half ago?

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Answer:

Weight before 18 month = 18 pound

Step-by-step explanation:

Given:

Current weight of dog = 14 pound

Weight lose each month = 2/9 pound

Total number of month = [tex]1\frac{1}{2}[/tex] year = 18 month

Find:

Weight before 18 month

Computation:

Total weight lose = Weight lose each month x Total number of month

Total weight lose = 2/9 x 18

Total weight lose = 4 pound

Weight before 18 month = Current weight of dog + Total weight lose

Weight before 18 month = 14 + 4

n = number of sides = 7

s = side length = 4.3

r = apothem = 4.5

Area = 1/2 × nsr

= 1/2 × 7 × 4.3 × 4.5

= 0.5 × 7 × 4.3 × 4.5

= 67.725feet²

help me with it thank you

Answers

Answer:

Answer is A

Step-by-step explanation:

x+4=4x+2

x+2=4x

2=3x

2/3=x

The Virginia Department of Environmental Quality (VDEQ) uses probabilistic monitoring to regulate the water quality of streams in the Commonwealth of Virginia. Of the 85 Eastern Virginia Sites (group 1), 24 do not meet minimum requirements. Of the 80 units sampled in Western Virginia Sites (group 2), 17 do not meet minimum requirements. Assume the data can be treated as independent simple random samples. To determine whether the proportions of streams that fail to meet minimum requirements in the two areas are equal or not, test the following hypotheses.
a) State the null and alternative hypotheses in order to determine whether the proportions of streams that fail to meet minimum requirements in the two areas are equal or not .
(b) Calculate the value of the test statistic z.
(c) Determine the P-value associated with this observed value of z and draw the conclusion about the hypotheses using alpha=0.05.

Answers

Step-by-step explanation:

a) Hn: p1=p2, Ha: p1≠p2

Given:

p1=24/85=0.2824

p2=17/80=0.2125

p=(24+17)/(85+80)=41/165=0.2485

n1=85

n2=80

Z=(p1-p2)/[p(1-p)(1/n1+1/n2)

Z=(0.2824-0.2125)/[0.2485(1-0.2485)(1/85+1/80)

Z=1.0384

c) Since our p-value would be 0.29834, this is higher than our significance level of a=0.05, so we fail to reject the null hypothesis and conclude that there is sufficient evidence to prove that the two proportions are equal.

a) The null hypothesis is given by Hn: p1=p2, Ha: p1≠p2

What is null hypothesis?

The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Given that:

p1=24/85=0.2824

p2=17/80=0.2125

p=(24+17)/(85+80)=41/165=0.2485

n1=85

n2=80

Z=(p1-p2)/[p(1-p)(1/n1+1/n2)

Z=(0.2824-0.2125)/[0.2485(1-0.2485)(1/85+1/80)

Z=1.0384

c) Since our p-value would be 0.29834, this is higher than our significance level of a=0.05, so we fail to reject the null hypothesis and conclude that there is sufficient evidence to prove that the two proportions are equal.

To know more about Null hypothesis follow

https://brainly.com/question/15980493

#SPJ2

Using the following conversions between the metric and U.S. systems, convert the measurement.
Round your answer to 6 decimal places as needed.
1 meter = 3.28 feet
1 Liter = 0.26 gallons
1 kilogram = 2.20 pounds
12.892 dam = [answer] in miles

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Answer:

It's 23.131 KL

Which inequality represents the situation: Kate took $3 out of her purse and still had at least $8 in it. How much did she have to begin with?

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Answer:

k-3 ≥8

Step-by-step explanation:

k-3 ≥8

kate takes out 3 dollars and has at least 8 dollars left, meaning she could have more.

PLZ RESPOND AS SOON AS POSSIBLE
What point is located at (-2, -6)
a. F
b. G
c. H
d. K

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"Point K" is the correct answer!-2 means 2 left-6 means 6 down

The answer is for your question is letter k

Challenge:
Put these in order (least to greatest)

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Answer:

1 1/4, -1, -1/4, 0, 1/4, 1

Step-by-step explanation:

Answer:

-1 1/4, -1, -1/4, 0, 1/4, 1,

Step-by-step explanation:

Please help me i am not downloading anything

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Answer:

on what

Step-by-step explanation:

The sum of 2 numbers s 1 and the diffreance is 5 what are th 2 numbers

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Answer:

note ;sum of two no. is not 1.

let no. be x and y.

we have

x+y=11.......(1)

x-y=5........(2)

adding equation 1&2

x+y+x-y=11+5

2x=16

x=16/2=8

again

8-y=5

y=8-5=3

x=8,y=3

HELP HOW DO I GET MORE THAN ONE PICTURE WHEN I ASK A QUESTION ‍♀️‍♀️

Answers

Answer:

Press browse files after the 1st one

Step-by-step explanation:

That just look at circle

HELP
Mrs. Tate's car has 11.25 gallons of gas in the tank and uses 0.05 gallons per mile. If Mrs. Tate uses 2.75 gallons driving home from visiting family, which of the following best describes all possible numbers of miles (m) she can drive after returning home before running out of gas?

A.
m > 170
B.
m < 170
C.
m < 280
D.
m > 280

Answers

Answer:

Step-by-step explanation:

11.25-2.75 = 8.5

8.5/.05 = 170

Answer:

Step-by-step explanation:

170

6x + y = -1
-6x - 4y = 4
solve for x and solve for y

Answers

9514 1404 393

Answer:

(x, y) = (0, -1)

Step-by-step explanation:

The coefficients of x are opposites, so we can eliminate x by adding the two equations.

(6x +y) +(-6x -4y) = (-1) +(4)

-3y = 3 . . . . simplify

y = -1 . . . . . . divide by -3

Now, we need to find x.

6x -1 = -1 . . . substitute for y in the first equation

6x = 0 . . . . . add 1

x = 0 . . . . . . divide by 6

The solution is (x, y) = (0, -1).

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Solve 3x^2 if x is 10 By the way, the x is a variable

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Solve 3x^2 if x is 10

By the way, the x is a variable