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3 years ago

Need help!!........................................

Mathematics

1 answer:

Crazy boy [7]3 years ago

6 0

Answer:

C. $\sqrt{48}$

Step-by-step explanation:

Applying the leg rule which is given as:

Hypotenuse/leg = leg/part

Hypotenuse = 8 cm

Leg = z

Part = 6 cm

Plug in the values

$\frac{8}{z} = \frac{z}{6}$

Cross multiply

$z*z = 8*6$

$z^2 = 48$

$\sqrt{z^2} = \sqrt{48}$

$z = \sqrt{48}$

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A cyclist rides at a constant speed, traveling 30 miles in 1.5 hours. Write a proportion that gives the number x of miles the cy

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Answer:

We can write proportion as:

$\frac{\mathbf{30\:miles}}{1.5\:hours}=\mathbf{\frac{x\:miles}{4\:hours}}$

Step-by-step explanation:

A cyclist rides at a constant speed, traveling 30 miles in 1.5 hours. Write a proportion that gives the number x of miles the cyclist rides in 4 hours

Proportion:

A proportion is used when two ratios are equal. It can be written as a/b=c/d

In our case we have:

a= 30 miles

b = 1.5 hours

c = x miles

d = 4 hours

We can write proportion as:

$\frac{\mathbf{30\:miles}}{1.5\:hours}=\mathbf{\frac{x\:miles}{4\:hours}}$

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