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crimeas [40]
2 years ago
15

Solve the following please:

Mathematics
1 answer:
Reika [66]2 years ago
6 0

Answer:21

Step-by-step explanation: solve whats in the numerator then solve whats in the denominator then you divide

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Rylee is learning about prime numbers in math class. Her friend ask her to name all prime number between 10 and 20. What numbers
Juli2301 [7.4K]

Answer:

11, 13, 17, 19

Step-by-step explanation:

If you look at the prime numbers chart between 10 and 20, there are:

11, 13, 17, 19

Those are all of the prime numbers that are between 10 and 20.

4 0
3 years ago
Find the area of an equilateral triangle (regular 3 Gon) with the given measurement 9 in perimeter a=SQ.in
blsea [12.9K]

Answer:

3.897 in^{2}

Step-by-step explanation:

equilateral triangles are also equiangular, meaning the have equal angles.

Triangle sum theory says that angles of a triangle add up to 180.

That means each angle is 60.

A = bh/2

You need the (h). The base of is 3.  Perimeter = 9, so each side is 3

Draw a perpendicular line for the height. The line cuts the base in half (1.5)

Using trigonometry you can find the height.

tan 60° = h/1.5

h = height, 1.5 is half of 3, 60° is the base angle.

multiply each side by 1.5

1.5(tan 60°) = h

h=2.598

then substitute h into formula

A= <u>(2.598)(3) </u>

           2

A = 3.897 rounded

4 0
3 years ago
Which number is a solution if the inequality?
Likurg_2 [28]

I am following this post


4 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP THIS QUESTION CONFUSED ME THE MOST!!! I WILL GIVE BRAINLEIST ANSWER
musickatia [10]
I think it's 6.216 x 10^8 if this is about standard notation
6 0
3 years ago
In a recent year, 27.9% of all registered doctors were female. If there were 53,700 female registered doctors that year, what wa
Elis [28]

Answer:

The total number of registered doctors was 192,473.

Step-by-step explanation:

This question can be solved using a rule of three.

53700 is 27.9% = 0.279. The total number of registered doctors is x, which is 100% = 1. So

53700 doctors - 0.279

x doctors - 1

0.279x = 53700

x = \frac{53700}{0.279}

x = 192473.11

Rounding to the nearest whole number.

The total number of registered doctors was 192,473.

5 0
3 years ago
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