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4 years ago

NEED HELP! HOPE THIS IS A BETTER PHOTO

Mathematics

1 answer:

avanturin [10]4 years ago

4 0

You need a picture of the data table...

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Which student evaluated the power correctly?

Colt1911 [192]

Answer:jerry

Step-by-step explanation:

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3 years ago

In na hour , a jogger burns about 4 calories pero pound of body weight. How Manu calories will a jogger who weighs 151 pounds in

Alex777 [14]

This is a rate*unit problem.

So, 4 calories per pound x 151 pounds

$4\times151=604$

He will burn 604 calories in one hour

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3 years ago

What is the value of x?

grin007 [14]

Answer:

Hello! answer: x = 15

Step-by-step explanation:

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3 years ago

Factorise 9w² - 100<br><br><br>

ohaa [14]

Answer:

$9\, w^{2} - 100 = (3\, w - 10) \, (3\, w + 10)$ .

Step-by-step explanation:

Fact:

$\begin{aligned} & (a - b)\, (a + b)\\ =\; & a^{2} + a\, b - a\, b - b^{2} \\ =\; & a^{2} - b^{2} \end{aligned}$ .

In other words, $(a^{2} - b^{2})$ , the difference of two squares in the form $a^{2}$ and $b^{2}$ , could be factorized into $(a - b)\, (a + b)$ .

In this question, the expression $(9\, w^{2} - 100)$ is the difference between two terms: $9\, w^{2}$ and $100$ .

$9\, w^{2}$ is the square of $3\, w$ . That is: $(3\, w)^{2} = 9\, w^{2}$ .
On the other hand, $10^{2} = 100$ .

Hence:

$9\, w^{2} - 100 = (3\, w)^{2} - (10)^{2}$ .

Apply the fact that $a^{2} - b^{2} = (a - b) \, (a + b)$ to factorize this expression. (In this case, $a = 3\, w$ whereas $b = 10$ .)

$\begin{aligned}& 9\, w^{2} - 100 \\ =\; & (3\, w)^{2} - (10)^{2} \\ = \; & (3\, w - 10)\, (3\, w + 10)\end{aligned}$ .

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3 years ago

the graph shows the total number of comic books in brandon's collection at the end of every month for the year 2014

saw5 [17]

Answer:

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3 years ago