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IgorLugansk [536]

1 year ago

7

Peter is saving to buy a new skateboard. He deposits the same amount each week into his savings account. How much money does he

save each week?

1 answer:

olchik [2.2K]1 year ago

3 0

Answer:

The saves 5.75 dollars each week

Step-by-step explanation:

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ratelena [41]

Answer:

C

Step-by-step explanation:

im not 100% sure but i beleive its C

4 0

3 years ago

Which equation represents a line with a slope of -2?

tekilochka [14]

y= mx+b

slope is also m

b= y-intercept

Answer: b. y = -2x +-1

4 0

3 years ago

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It was 55 degrees fahrenheit outside until the temperature increased 20 degrees fahrenheit. Which number is the addictive invers

ValentinkaMS [17]

Try using this
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3 0

3 years ago

25 Points:PLEASE HELP ASAP

alekssr [168]

Answer:

I am sorry, what is your question? What do you <em>have </em>a question on?

8 0

2 years ago

You have a wire that is 38 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The o

Drupady [299]

Answer:16.71 cm

Step-by-step explanation:

Given

Length of wire L=38 cm

One piece is bent in the form of square and another in the form of circle

let x be the length of circle

therefore length of square side $\frac{38-x}{4}$

A=total area of square and circle

radius of circle $r=\frac{x}{2\pi }$

area of circle $A_c=\pi r^2=\pi \times (\frac{x}{2\pi })^2$

Area of square $A_s=(\frac{38-x}{4})^2$

$A=\pi \times (\frac{x}{2\pi })^2+(\frac{38-x}{4})^2$

To get the minimum value of A we get

$\frac{\mathrm{d} A}{\mathrm{d} x}=\frac{2x}{4\pi }-\frac{2(38-x)}{16}$

$\frac{\mathrm{d} A}{\mathrm{d} x}=0$

$\frac{x}{4\pi }=\frac{38-x}{16}$

$x=\frac{38\pi }{4+\pi }$

Therefore circumference of circle

$x=\frac{38\pi }{4+\pi }=\frac{119.396}{7.142}=16.717 cm$

8 0

2 years ago