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3 years ago

Classify the AVERAGE number of students in all the math classes at Ponderosa. (Click all that apply)

Mathematics

1 answer:

Oksanka [162]3 years ago

7 0

Answer:

real, rational

Step-by-step explanation:

Without knowing what the average number of students is, we know the number must be a real number, and must be rational. (An average of integers is always the ratio of two integers.) It may or may not be a natural number, whole number, or integer.

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Rachel babysits the Michaelson’s kids on Saturdays for 4 hours and is paid $12.50 per hour. On Sundays, she babysits at the Smit

Elena L [17]

Answer: Saturday for 4 hrs = $50

Sunday for 4 hours = $58

Step-by-step explanation:

6 0

3 years ago

Find the area of the shaded region given the radius of each circle is 4. Answer in exact form is preferred.

larisa [96]

In each circle, we have a sector that subtends an angle of 270 deg at the center, with a radius of 4

We can obtain the area of each sector as :

$\begin{gathered} \text{Area of sector = }\frac{\theta}{360^0}\text{ }\times\text{ }\pi r^2 \\ =\text{ }\frac{270^0}{360^0}\text{ }\times\text{ }\pi\text{ }\times4^2 \\ =\text{ 37.7 square units} \end{gathered}$

Given that there are 4 of such sectors, we have:

$\begin{gathered} \text{Area of shaded region = 4 }\times\text{ 37.7} \\ =\text{ }150.8\text{ square units} \\ =\text{ 151 square units} \end{gathered}$

Answer = 151 square units

5 0

1 year ago

(SAT Prep) In the figure, what is the length of BC?

TiliK225 [7]

Answer:

I got 18 as my answer

Step-by-step explanation:

I made a triangle with the right side by dropping a vertical. Lets call the point straight down from C, E

Then I found the angle of D

sin θ = 5/13

θ = sin-¹(5/13)

θ≅22.619°

Then I found length of DE by

cosθ (remember we know what theta is) = X/13

12cosθ = X

X = 12

The length of DE is 12.

Since AD is 30, and the left side has two right angles we can do

AD - DE to find BC.

30-12 is 18

6 0

4 years ago

Read 2 more answers

End Time: 5/28/2021 11:59 PM

jolli1 [7]

Answer:

$35,640

Step-by-step explanation:

$55×6p×12d×9h=$35,640

5 0

3 years ago

A company makes cars.

Juliette [100K]

Answer:

$6,250,000

Step-by-step explanation:

Let :

2016 income = x

2017 income = x + $500,000

2017 income is 8% more than company's income in 2016

Thus ;

8% of 2016 income = 500000

0.08x = 500,000

x = 6,250,000

Hence, the company's income in 2016 is $6,250,000

4 0

3 years ago