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marta [7]
3 years ago
14

PLEASE HELP!!!! THNX ALOT FOR HELPING Correct answer with explanation gets brainliest

Mathematics
2 answers:
zepelin [54]3 years ago
5 0

The first step to solve this problem is to solve for the area of the square. The formula for the area of the square is:

A = a^2

Where a = measurement of the side of the square

A = 7^2

A = 49 cm^2

The second step is to solve for the area of the circle. The diameter of the circle can be drawn out of the side of the square which is 7 cm. Therefore, the radius of the circle is 3.5 cm. The formula in solving the area of the circle is:

A = pi (r)^2

A = 3.14 (3.5)^2

A = 3.14 (12.25)

A = 38.465 cm^2

To solve for the area of the shaded region, you have to deduct the area of the circle to the area of the square.

Asquare – Acircle = Area of the shaded region

49 cm^2 – 38.465 cm^2 = 10.54 cm^2 is the area of the shaded region

GrogVix [38]3 years ago
3 0
Is there more to it?
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Valeries pay is $1420 per week; 22% of that is taken by the government for income taxes. How much money does she take home on he
Alexandra [31]

Answer:

1107.6

Step-by-step explanation:

1420x.22 =312.4

1420-312.4=1107.6

4 0
3 years ago
PLEASE HELP 20 POINTS
Anika [276]
Hello!

A sample of Bromine-82 begins at 80 mL. We are given that this value will decrease by half of its current amount every 35 hours. First, we'll determine the number of times that 35 goes into 140. This will reveal the number of times we should divide the sample by 2:

140 ÷ 35 = 4

We have now proven that there are 4 periods of 35 hours in 140 hours. This means that we will divide the sample in half a total of 4 times, as follows:

1. 80 ÷ 2 = 40
2. 40 ÷ 2 = 20
3. 20 ÷ 2 = 10
4. 10 ÷ 2 = 5

We have now proven that an 80 mL sample of Bromine-82 will be reduced to only 5 mL after 140 hours. Therefore, the correct answer is 5 mL.

I hope this helps!
7 0
2 years ago
Read 2 more answers
Find the length of the diagonal of a square with perimeter of 24
julsineya [31]

Answer:

d = 6sqrt(2) or 8.4853

Step-by-step explanation:

<u><em>Formula</em></u>

P = 4*s

s^2 + s^2 = d^2 where d is the diagonal and s is the side.

<u><em>Givens</em></u>

P = 24

<u><em>Solution</em></u>

P = 4s         Substitute for s

24 = 4*s      Divide by 4

24/4 = s

s = 6

================

d^2 = s^2 + s^2

d^2 = 6^2 + 6^2

d^2 = 36 + 26

d^2 = 72

d = sqrt(72)

Factors of 72

72: 6 * 6 * 2

<em><u>Rule</u></em>: Every pair of = factors allows you to take one of them outside the sqrt sign and throw the other a way. If there are no pairs, whatever you started with stays under the root sign.

sqrt(6*6*2) = 6sqrt(2)

  • The diagonal length is either
  • d = 6*sqrt(2) or
  • d = 8.4853

8 0
3 years ago
"Which shapes are topologically equivalent to Choice 2?
DanielleElmas [232]
<span>Which shapes are topologically equivalent to Choice 2?  D. NONE

Choice 1, 3, and 4 are topologically equivalent. These figures each have two holes. 

Choice 2 has three holes and is different from the other. 

Topologically equivalent figures are figures that can be rearranged to form another shape without breaking.</span>
8 0
2 years ago
What ideas do you need to remind yourself when working with taxes and discounts
azamat

Answer:

remember to read carefully

Step-by-step explanation:

6 0
2 years ago
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