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3 years ago

i need help asap!!How far can Lance Armstrong travel if he averages 28 miles per hour for 3 hours and 45 minutes?

Mathematics

1 answer:

Murrr4er [49]3 years ago

7 0

Answer:

105 Miles.

Step-by-step explanation:

The first important thing to recognize is that 45 minutes is equal to .75 of an hour. (3/4).

Now, it's a rate * time problem.

28 Miles/Hour * 3.75 hrs = 105

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3 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Your friend attempted to factor an expression as shown. Find the error in your friends work. Then factor the expression correctl

loris [4]

Answer:

Third step is incorrect. The correct factored form is (x-1)(2x-5).

Step-by-step explanation:

The given expression is

$2x^2-7x+5$

We need to find the factored form of this expression.

Step 1: Given

$2x^2-7x+5$

Step 2: Splitting the middle term method, the middle term can be written as (-5x-2x).

$2x^2-5x-2x+5$

$(2x^2-5x)+(-2x+5)$

Step 3: Taking out common factors from each parenthesis.

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Step 4: Taking out common factors.

$(x-1)(2x-5)$

Therefore, the third step is incorrect. The correct factored form is (x-1)(2x-5).

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2 years ago

The radius of the base of a cylinder is 27 cm and it’s height is 33cm. Find the surface area of the cylinder in terms of pi.

Dahasolnce [82]

Answer:

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Step-by-step explanation:

use formula:-2πrh+2πr^2

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3 years ago