2 years ago

Can you please help Me

Mathematics

1 answer:

Delvig [45]2 years ago

4 0

I’m positive it’s dababy

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san4es73 [151]

500 + 500 = 1000 I hope I helped

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2 years ago

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Find the focus for y=x^2+4x-7

padilas [110]

ANSWER

$(2,-10.75)$

EXPLANATION

The given function is

$y = {x}^{2} - 4x - 7$

We rewrite this function to obtain,

$(y + 11) = {( x- 2)}^{2}$

We now compare this function to

$(y - k) = 4p {( x- h)}^{2}$

We have

$4p = 1$

This implies that,

$p = \frac{1}{4}$

The vertex is (2,-11).

The focus is

$(2,-11+ \frac{1}{4} )$

$(2,- \frac{43}{4} )$

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3 years ago

A man is 13 times as old as his son is. In 10 years he will be 3 times as old as his son is now. How old are they now?

valkas [14]

Answer:

the son is 2

man is 26

+10 yrs

son=12

man=36

Step-by-step explanation:

Let the son's age be x.

Then the father's age is 13x.

In ten years their ages will be (x+10) and (13x+10).

(13x+10)=3(x+10)

13x+10=3x+30

10x=20

x=2

The son is 2 years old.

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2 years ago

3(2x + 1) = 12 + 3x ?

Andre45 [30]

Answer:

6x+3=12+3x

6x-3x=12-3

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Is the additive inverse of an integer always negative?

KengaRu [80]

Yes it is always a negative because that is the only way it would be an additive is if it was a negative number

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