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3 years ago

Which function has a range of fyly s 5}?

Mathematics

1 answer:

Dafna1 [17]3 years ago

8 0

Answer:

{xlx = -6, -1, 0, 3}

fyly=-7, 62, 1,9}

{x|x = -7, -6, -2, -1, 0, 1, 3, 9}

{yl y = -7, -6, -2, -1, 0, 1, 3, 9

Step-by-step explanation:

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The radius of a circular puddle is growing at a rate of 25 cm/sec.

tatiyna

Answer:

Step-by-step explanation:

a)area A=pi r^2

rate of change of area =dA/dt =2 pi r dr/dt

given dr/dt =25 ,r =50

rate of change of area =dA/dt =2 pi *50 *25 =2500pi=7854

area growing 7854 cm2/s

b)area A=pi r^2

rate of change of area =dA/dt =2 pi r dr/dt

given dr/dt =25 ,A =64

pi r^2 =64

=>r =8/√pi

rate of change of area =dA/dt =2 pi *(8/√pi) *25 =400√pi=708.98

area growing 708.98 cm2/s

8 0

4 years ago

I'll mark the best or the first as brainliest.

FinnZ [79.3K]

Answer:

Here the error is 

 $\pi {r}^{2}$ 

It should have been ,

 $2\pi {r}^{2}$ 

Step-by-step explanation:

Corrected formula:

 $2\pi {r}^{2} + 2\pi rh$ 

 $= 2\pi ({5}^{2}) + 2\pi(5)(10.6)$ 

 $= 50\pi + 106\pi$ 

 $= 156\pi$ 

 $= 489.84 {yd}^{2}$ 

 $approx . \: 489.8 {yd}^{2} (ans)$ 

6 0

3 years ago

Write and solve an inequality to find the values of x for which the perimeter of the rectangle is less than 120.

RSB [31]

Answer:

Inequality : 4x+8 < 120

x<28

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Perimeter of a rectangle (P)= 2 length +2 width

Where:

Width = x

Length = x+4

Replacing with the values given

P = 2 (x+4) + 2x

P = 2x+8+2x

P=4x+8

Since the perimeter of the rectangle must be less than 120:

4x+8 < 120

Solving for x

4x<120-8

4x<112

x<112/4

x<28

Feel free to ask for more if needed or if you did not understand something.

4 0

3 years ago

Select all of the following true statements if R = real numbers, Z = integers, and W = {0, 1, 2, ...).

Nezavi [6.7K]

Answer:

IDK THE ANSWER SORRY

Step-by-step explanation:

THAT SEEMS LIKE BULLSH*T THO

8 0

3 years ago

Rachel will earn $384.61 per week for 8 weeks until college starts. Rachel wants to save $50 per week to buy a bike, and she has

Soloha48 [4]

Answer:

yes, she will have 2076.88

Step-by-step explanation:

4 0

3 years ago