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Murrr4er [49]
3 years ago
7

A city park commission received a donation of playground equipment from a parents' organization. The area of the playground need

s to be 256 square yards for the children to use it safely. The playground will be rectangular.
The city will also put a fence around the playground. The perimeter, P, of the fence includes the gates. To save money, the city wants the least perimeter of fencing for the area of 256 square yards.

Jovana was trying to find a formula for that perimeter with one side 8 yards longer than the other side using the area. In which step did she make a mistake? Explain her mistake and give the correct formula.

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

step 3 she didn’t distribute the x correctly

Step-by-step explanation:

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i need help with 3 (along with 3a-c) i am confused on what to do with the numbers that are in degrees...
iVinArrow [24]

Answer:

The answer to your question is below

Step-by-step explanation:

Let p = \frac{cos x + siny}{\sqrt{w^{2} - z}}

x = 36°

y = 18°

w = 29

z = 21.8

- Substitution

p = \frac{cos 36 - sin 18}{\sqrt{29^{2} - 21.8}}

- Simplification

p = \frac{0.809 - 0.309}{\sqrt{841 - 21.8}}

p = \frac{0.5}{\sqrt{819.2}}

p = \frac{0.5}{28.622}

a) Result

p = 0.017469281

b) Three significant figures

p = 0.017

c) Scientific notation

p = 1.7 x 10⁻²

a = 1.7   k = -2

7 0
3 years ago
Read 2 more answers
Work out the area of this quarter circle of radius 8cm, Give you answer in terms of pi
oee [108]

Answer:

The area of the quarter circle is 16\pi\ cm^{2}

Step-by-step explanation:

we know that

The area of a quarter circle is equal to

A=\frac{1}{4}\pi r^{2}

we have

r=8\ cm

substitute the value

A=\frac{1}{4}\pi (8)^{2}

A=16\pi\ cm^{2}

3 0
3 years ago
#94 will give brainliest to best answer!​
bazaltina [42]

Answer:

5/8

Step-by-step explanation:

There are 8 sections, and 4 sections that are 1, and 1 pink section. So adding these up, we get 5/8.

Hope this helped! :)

7 0
2 years ago
✎Question:Amirah is 4 years elder than Priya and Shirley is 2 years younger than Priya. If the sum of their ages is 47, find the
Gnom [1K]

Answer:

Priya's age = 15

Amirah's age = 19

Shirley's age = 13

Step-by-step explanation:

Let x be the age of Priya.

According to the question,

Amirah's age = x + 4

Shirley's age = x - 2

Their sum is 47.

So,

x + 4 + x + x - 2 = 47

3x + 2 = 47

3x = 47 - 2

3x = 45

x = 45/3

x = 15

So,

Priya's age = 15

Amirah's age = 15 + 4 = 19

Shirley's age = 15 - 2 = 13

7 0
3 years ago
Read 2 more answers
3. Find the measure of Part I: An inscribed angle is an angle formed by two chords of a circle which share an endpoint. Find the
nevsk [136]

Answer:

ther answer equation 7x10^2 equals to  the left rectangle

Step-by-step explanation: take the left diciple and minus it by the left exponent leaving you with a hokie pokie into obamas back yard

5 0
3 years ago
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