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UNO [17]
3 years ago
10

What does πr² mean and how do I solve it

Mathematics
2 answers:
Licemer1 [7]3 years ago
8 0
That is circle area

A=\pi *  r^{2}

r=circle radius
\pi =3.14
BlackZzzverrR [31]3 years ago
6 0
U do the radios first then what ever your anwser is u multipy it by 3.14
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Use trigonometric ratios to find the indicated side
iragen [17]

Answer:

a = 139.1

b = 56.2

Step-by-step explanation:

A. Reference angle = 68°

Opp = a

Hyp = 150

Therefore:

Sin 68 = opp/hyp

Sin 68 = a/150

150*sin 68 = a

a = 139.1 (nearest tenth)

B. Reference angle = 68°

Adj = b

Hyp = 150

Therefore:

Cos 68 = adj/hyp

Cos 68 = b/150

150*cos 68 = b

b = 56.2 (nearest tenth)

4 0
2 years ago
One serving of trail mix has 67 grams of carbohydrates, which is 22% of the recommended daily amount. What is the total recommen
DaniilM [7]

For this case we propose a rule of three:

67 grams -----------> 22%

x grams --------------> 100%

Where:

The variable "x" represents the recommended amount of daily carbohydrates.

So, we have:

x = \frac {100 * 67} {22}\\x = 304.5455

Rounding we have the recommended amount, in grams, of carbohydrates: 305 grams

Answer:

305 grams

5 0
3 years ago
Read 2 more answers
Given that ​f(x) = x + 4 and ​g(x)​ = x^{2} - x, find ​(f​ + g)(​5), if it exists.
user100 [1]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
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Mario is constructing a wall around a rectangular area which will cover a maximum of 60 square feet. The length of the wall will
Feliz [49]

Answer:

W \le 6

Step-by-step explanation:

Given

Area = 60ft^2\ (max)

Length = 10ft

Required

Represent the width as an inequality

First, we represent the area as an inequality.

Area = 60ft^2\ (max)

max as used above means less than or equal to.

So, we have:

Area \le 60

The area of a rectangle is:

Area = L * W

So, we have:

L * W \le 60

Substitute 10 for L

10 * W \le 60

Divide both sides by 10

\frac{10 * W}{10} \le \frac{60}{10}

W \le \frac{60}{10}

W \le 6

7 0
3 years ago
What is the slope of the linear function..........​
Sergio [31]

Answer:

-1

Step-by-step explanation:

slope: change in y divided by change in x

y2-y1/x2-x1

-11-(-5)/4-(-2)

-11+5/4+2

-6/6

-1

5 0
2 years ago
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