MATHEMATICS
HIGH SCHOOL

Answer: To get this answer, we do the part divided by the whole and multiply by 100 to get a percentage.

425 / 1700 = 0.25

0.25 x 100 = 25.

25% is your answer, letter D.

425 / 1700 = 0.25

0.25 x 100 = 25.

25% is your answer, letter D.

COLLEGE

Solve the quadratic equation. 12x2 − 75 = 0

Answer:

x = ±5/2

Step-by-step explanation:

12x² − 75 = 0

12x² = 75

4x² = 25

x² = 25/4

x = ±5/2

MIDDLE SCHOOL

Sylvia plays basketball for 110 minutes. How many hours and minutes are there in 110 minutes

I hour and 50 minutes

1 hour and 50 minutes

in 2 hours there are 120 mins

so from that you can figure that 10 minutes less would be 1 hour 50 mins

in 2 hours there are 120 mins

so from that you can figure that 10 minutes less would be 1 hour 50 mins

MIDDLE SCHOOL

Which of the following lists is not in order from smallest to largest? A.10.1, 10.5, 11.2, 12.9

B.4.75, 4.8, 4.92, 5

C.0.5, 1.3, 2.6, 3.8

D.2.33, 1.87, 3.6, 7.1

Hello there.

Your question: Which of the following list is not in order from smallest to largest?

Your answer: The option D is arranged incorrectly. Its suppose to be as: 1.87, 2.33, 3.6, 7.1.

Hope this helps!

Your question: Which of the following list is not in order from smallest to largest?

Your answer: The option D is arranged incorrectly. Its suppose to be as: 1.87, 2.33, 3.6, 7.1.

Hope this helps!

Answer:

D. 2.33, 1.87, 3.6, 7.1

Step-by-step explanation:

This answer is not in order from smallest to largest.

Hope it helped!

MIDDLE SCHOOL

Cindy works part time a day earns $5.75 an hour. One year she worked 50 weeks and averaged 12.4 hours of work per week. About how much money did she earn that year?

12.4*50 gives you the hours. 12.4*50=x

Then multiply that number by 5.75.

5.75x= y

That's your answer

Then multiply that number by 5.75.

5.75x= y

That's your answer

5.75*12.4=71.3$ an week

71.3*50=3565 an year

71.3*50=3565 an year

COLLEGE

The sum of all but one interior angle of a heptagon is 776°. The final angle must have a measure of degrees.

Answer:

The final angle must have a measure of 124 degrees.

Step-by-step explanation:

Heptagon is polygon with seven sides.

Sum of angles of heptagon = 900°

Given:Sum of all angles and one interior angle of a heptagon is 776°.

Let the measure of interior angle be x

776° + ∠x = 900°

∠x = 900° - 776° = 124°

The final angle must have a measure of 124 degrees.

A heptagon has 7 sides.

Sum of all interior angles = (7 - 2) x 180 = 900°

900 - 776 = 124°

Answer: The final angle must be 124°

Sum of all interior angles = (7 - 2) x 180 = 900°

900 - 776 = 124°

Answer: The final angle must be 124°

MIDDLE SCHOOL

What is the value of the expression?

plz help

2³ + 5²

= 8 + 25

= 33 ← answer

= 8 + 25

= 33 ← answer

First, according to order of opperations, we do exponents before addition and subtraction

2^3 means 2 to the power of 3, which is also 2*2*2 that is 8. then we have 5^2, or 5 to the power of 2 which is 5*5 that is 25. we have 8-25=-18

2^3 means 2 to the power of 3, which is also 2*2*2 that is 8. then we have 5^2, or 5 to the power of 2 which is 5*5 that is 25. we have 8-25=-18

MIDDLE SCHOOL

What is the change in y divided by the change in x called?

It is called the slope of the line

The change in y divided by the change in x is called the slope of the line.

COLLEGE

Women's shoe size follow a normal distribution with a mean of size 7.5 and a standard deviation of 1.5 sizes. Using the 68-95-99.7 rule, if a store owner wants to stock shoe that fit. 68% of women, what range of sizes should the owner order

Given:

μ = 7.5, the population mean

σ = 1.5, the population standard deviation

According to the 68 - 95 - 99.7 rule, 68% of the population data lies within one standard deviation of the population mean.

Therefore the range of sizes that fit 68% of women is

(7.5-1.5, 7.5+1.5) = (6.0, 9.0)

Answer: 6.0 to 9.0

μ = 7.5, the population mean

σ = 1.5, the population standard deviation

According to the 68 - 95 - 99.7 rule, 68% of the population data lies within one standard deviation of the population mean.

Therefore the range of sizes that fit 68% of women is

(7.5-1.5, 7.5+1.5) = (6.0, 9.0)

Answer: 6.0 to 9.0

HIGH SCHOOL

How do you find the cot θ if csc θ = square root of five divided by two and tan θ > 0.

Since 0" alt="\tan\theta=\dfrac{\sin\theta}{\cos\theta}>0" align="absmiddle" class="latex-formula">, and we know that 0" alt="\sin\theta=\dfrac2{\sqrt5}>0" align="absmiddle" class="latex-formula">, we then also know that 0" alt="\cos\theta>0" align="absmiddle" class="latex-formula">.

Recall that

We take the positive root because we know that 0" alt="\cos\theta>0" align="absmiddle" class="latex-formula">. Then

Now,