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lora16 [44]
3 years ago
14

A bike racer covers a distance of 220 kilometers in 4 hours. What is the rate x of the bicyclist in kilometers per hour?

Mathematics
2 answers:
Alborosie3 years ago
8 0

Answer:

12

Step-by-step explanation:

DerKrebs [107]3 years ago
6 0
D= rt
Rate= d/t
220/4 = 55
55 = x
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A sphere and a cube have equal surface areas. The length of one edge of the cube is 1.11 meters. What is the radius of the spher
Nady [450]

Answer:

  0.767 m

Step-by-step explanation:

The area of a cube of edge length s is given by ...

  A = 6s^2

The area of a sphere of radius r is given by ...

  A = 4πr^2

When these two are equal, we have ...

  6s^2 = 4πr^2

  r^2 = 6s^2/(4π)

  r = s·√(3/(2π)) ≈ s·0.690988

The radius of the sphere is about ...

  r ≈ 0.690899×1.11 m

  r ≈ 0.767 m . . . . approximate sphere radius

3 0
3 years ago
Math Help!!! How many x-intercepts does the graph of the function have?
dalvyx [7]
It can have however many x intercepts it wants, 

<span>BUT, to be a function it must pass the vertical line test. </span>
<span>this means you have to look at the graph and see if a vertical line drawn anywhere hits the graph more than once. </span>
<span>if it hits it more than once, it is NOT a function. 
</span>
An example is a polynomial function to the infinite degree. That is 
f(x) = lim (n --> infinity) [ x^n] 
but only 1 y intercept (vertical line test remember)


6 0
2 years ago
Read 2 more answers
PLEASE help a girl out! :)What is the actual area of the room?
andrey2020 [161]

Answer:

=75ft^{2}

Step-by-step explanation:

Area is found by mulitplying width and height.

A=7.5(5)\\

A=37.5\\in

The ratio is 0.5in : 1ft, so if you multiply that ratio to the answer, you should get the answer in feet.

37.5in x \frac{1ft}{0.5in} =75ft^{2}

7 0
2 years ago
Is this a Function?<br><br> A. Yes<br> B.No<br> C. Maybe<br> D. Other
kondor19780726 [428]
No because they share a x twice
8 0
3 years ago
Solve the following equation for x.<br> 3x - 9 = -42
r-ruslan [8.4K]

Answer:

x = -11

Step-by-step explanation:

Add 9 to both sides of the equation

3 − 9 = −42

3 − 9 + 9 = −42 + 9

Simplify

Add the numbers

3 = −33

Divide both sides of the equation by the same term

3 = −33

3/3 = −33/3

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

= −11

3 0
2 years ago
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