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sergejj [24]
3 years ago
7

A roller coaster carries riders up a ramp that is 39 meters long

Mathematics
1 answer:
sasho [114]3 years ago
5 0

what do u have to search for?

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Which equation represents a proportional relationship that has a constant of proportionality equal to -10
stira [4]

Answer:

y =  - 10x

Step-by-step explanation:

A proportional relationship has equation:

y = kx

where k is the constant of proportionality.

Since we are looking for a proportional relationship that has a constant of proportionality equal to -10, we have k=-10.

We substitute k=-10 into the equation to get:

y =  - 10x

Therefore the correct choice is

y =  - 10x

7 0
3 years ago
Read 2 more answers
What is the area of this composite figure<br> 48.56cm2 <br> 49.12cm2<br> 74.24cm2 <br> 36.56cm2
Vlada [557]

Answer:

D. 36.56 cm²

Step-by-step explanation:

The composite figure is composed of a rectangle and two semicircles.

The two semicircles makes 1 full circle.

Thus:

Area of the composite figure = area of rectangle + area of circle

= L*W + πr²

L = 6 cm

W = 4 cm

r = ½(4) = 2 cm

Area = 6*4 + π*2²

Area = 24 + 12.56

Area = 36.56 cm²

6 0
3 years ago
What is 1/2 2/3 1/4 and 5/6 in least to greatest
vodomira [7]
1/2, 2/3, 1/4, 5/6 = 6/12, 8/12, 3/12, 10/12 = 1/4, 1/2, 2/3, 5/6
4 0
3 years ago
Read 2 more answers
Mía desea pintar una pared de su habitación. Ella no dispone de mucho tiempo al día, por lo que cada día pinta una parte de la p
Lubov Fominskaja [6]
Well, 1/3 = 428 so that you could get the same thing as 28 75 hours for you to go to school
6 0
3 years ago
Simplify the following expression. cot^2x secx-cosx
Solnce55 [7]

ANSWER

\cos(x)   \cot ^{2} (x)

EXPLANATION

The given expression is;

\cot^{2} (x)  \sec(x)  -  \cos(x)

Change everything to

\sin(x)

and

\cos(x)

This implies that,

\frac{ \cos^{2} (x) }{ \sin^{2} (x) }  \times ( \frac{1}{ \cos(x) } )-  \cos(x)

Cancel the common factors,

\frac{ \cos(x) }{ \sin^{2} (x) }  \times ( \frac{1}{1} )-  \cos(x)

\frac{ \cos(x) }{ \sin^{2} (x) }-  \cos(x)

\frac{ \cos(x)  -  \sin ^{2} (x)  \cos(x) }{ \sin^{2} (x) }

= \frac{ \cos(x)(1  -  \sin ^{2} (x) ) }{ \sin^{2} (x) }

= \frac{ \cos(x)(\cos^{2} (x) ) }{ \sin^{2} (x) }

= \cos(x)  \cot^{2} (x)

6 0
3 years ago
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