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Artist 52 [7]
3 years ago
13

If f(x) = √ x + 11, what is f (20)?

Mathematics
1 answer:
mylen [45]3 years ago
8 0

Answer:

2sqrt(5)+11

Step-by-step explanation:

f(x)=sqrt(x)+11

f(20)=sqrt(20)+11

f(20)=sqrt(4*5)+11

f(20)=sqrt(4)*sqrt(5)+11

f(20)=2*sqrt(5)+11

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Length of rectangle is 2(7z + 3) meters. the width is 5z meters than length perimeter in terms of z please
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Answer:

Step-by-step explanation:

Given,

Length (l) = 2(7z + 3) = 14z + 6

Breadth (b) = 5z

Now,

Perimeter of rectangle (P) = 2(l + b)

                                           =2(14z + 6 + 5z)

                                           =2(19z + 6)

                                           =38z + 12

4 0
3 years ago
A survey is being conducted to decide on how much time people spend watching sports on television. Tell whether the given sample
Naddika [18.5K]

Sampling bias occurs when some members of a population are systematically more likely to be selected in a sample than others. From this definition,

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4 0
3 years ago
Describe the relationship betw
GalinKa [24]

Answer:

108, 324, 972

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
What is a the sign of a x b<br><br> (A) positive <br><br> (B) negative <br><br> (C) zero
Blizzard [7]

Answer:

I think it would be negative. So, B

Step-by-step explanation:

Was it correct?

5 0
3 years ago
The measure of angle A to the nearest tenth of a degree is: A 18.5 B 19.5 C 20.5
Andrew [12]

Answer:

B


Step-by-step explanation:

<u>This is a right triangle as shown by the right angle.</u>

  • The side opposite the right angle is the hypotenuse, which is 9.
  • The side opposite angle A is 3.

So we have the opposite of A and the hypotenuse.

The trigonometric ratio that relates opposite side to hypotenuse is SINE.

sin\theta=\frac{opposite}{hypotenuse}

Since, we need angle A, \theta is A, opposite side is 3, and hypotenuse is 9, we substitute:

sinA=\frac{3}{9}\\sinA=\frac{1}{3}

<em>To solve for the angle, we use our calculator and find the inverse sin of \frac{1}{3} :</em>

A=sin^{-1}(\frac{1}{3})\\A=19.47

<em>Rounding to nearest tenth of a degree:</em>

A=19.5

B is the right choice.

6 0
4 years ago
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