3 years ago

Question 1 of 6

Mathematics

1 answer:

OverLord2011 [107]3 years ago

7 0

Answer:

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Step-by-step explanation:

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Colin earned $46 raking leaves. If he worked 1.5 hours yesterday and 4.25 hours today, how much did he earn per hour?

liberstina [14]

First, you add 1.5 and 4.25 together and you get 5.75. Then, you take $46 and divide it by 5.75 to get 8. So, the answer is 8. Hope this helped :)

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4 years ago

What is the sum of -21 and -49? A 70 Work must be shown for credit: num B ---28 . C 28. D -- 70

kupik [55]

When two negative numbers are added, the result is negative. Adding - 21 to - 49, it gives

- 21 + - 49 = - 21 - 49 = -70

The correct option is D

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1 year ago

Find x. Leave answers in simplified radical form. (Step by step)

just olya [345]

Answer:

$\sf x = 4\sqrt{2}$

Given:

adjacent: 4 cm
hypotenuse: x cm
angle: 45°

<u>using cosine rule:</u>

$\sf cos(x) = \dfrac{adjacent}{hypotenuse}$

$\sf cos(45) = \dfrac{4}{x}$

$\sf x = \dfrac{4}{cos(45)}$

$\sf x = 4\sqrt{2}$

4 0

3 years ago

Read 2 more answers

How does a number in scientific notation change when you multiply it by 100?

solmaris [256]

100 is equal to $10^{2}$ , So, when you multiply the scientific notation by 100, you should add 2 to the exponent of 10 in that scientific notation:

For example;
$9.12* 10^{8} * 100$

= $9.12* 10^{8} * 10^{2}$

= $9.12* 10^{8+2}$

= $9.12* 10^{10}$