I don't know how to do it

Mathematics

2 answers:

____ [38]3 years ago

8 0

I would say C because it makes more sense than all the others.

USPshnik [31]3 years ago

3 0

Do elimination make sure that the answer you eliminate doesn't make sence A and B doesn't make since so it's C or D. so D doesn't make sense do its C.

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a small dog’s heart beats about 530,000,000 times during its lifetime, and a large dog’s heart beats about 1.4 times this amount

iren2701 [21]

Answer:

I think the answer is 742,000,000

Step-by-step explanation:

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2 years ago

Subtract 5x^2 – 2x – 5 from – 2x^2<br> - 5x - 7

user100 [1]

Answer:

$-7x^{2} -3x-2$

Step-by-step explanation:

$(-2x^2-5x-7) - (5x^2-2x-5)\\\\-2x^2 - 5x^2 = -7 x^2\\-5x - -2x = -3x\\-7 - -5 = -2 \\Result: -7x^2-3x-2$

3 0

2 years ago

Read 2 more answers

Can someone tell me the slope ?

borishaifa [10]

Answer:

slope = 4

Step-by-step explanation:

We can find the slope of a line when knowing 2 points by using the slope formula, $\frac{y_2 - y_1}{x_2 - x_1}$ . $x_1$ and $y_1$ represent the x and y values of the first point, respectively. $x_2$ and $y_2$ represent the x and y values of the second point, respectively.

The two points we have are (2,8) and (0,0). So, in this case, $x_1$ = 2, $y_1$ = 8, $x_2$ = 0, and $y_2$ = 0. Let's substitute those values into the formula and solve to get the slope:

$m =$ $\frac{0-8}{0-2}$