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Rom4ik [11]
3 years ago
5

??????????????!!?????!!

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
6 0

Answer:

y =  - 2x + 1 \\ 5 =  - 2( - 2) + 1 \\ 5 = 4 + 1 \\ 5 = 5 \\ yes

Step-by-step explanation:

Plug in the point to the equation to see if the equation holds.

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Which equation best represents the graph?
oksano4ka [1.4K]

Answer:

The third one

Step-by-step explanation:

The graphs in the reversed shape of a cup are the graphs of quadratic equations whose coefficient of

x^2 is negative.

So, the answer must be either the first or the third.

It can be seen that when x= -4, y becomes 5.

Substituting the value of x, the third equation gives the value 5.

So, the answer is the third one.

3 0
3 years ago
Which expression is not equivalent
sasho [114]
It would be the third because it doesnt equal 12
4 0
4 years ago
In which step did Helena make an error
Marina86 [1]

Answer:

You have to post the picture so we can help.

Step-by-step explanation:

6 0
3 years ago
Can someone help me?
Lunna [17]
Answer: The value of q is exactly 7

------------------------------------

Explanation:

L = 16 is the length
W = 3 is the width
H = q is the unknown height
S = 362 is the surface area

We'll use the formula
S = 2*(L*W+W*H+L*H)
which is the surface area formula for any rectangular block

So plug in the given info and solve for q
S = 2*(L*W+W*H+L*H)
362 = 2*(16*3+3*q+16*q)
362 = 2*(48+3q+16q)
362 = 2*(48+19q)
362/2 = 2*(48+19q)/2 ... divide both sides by 2
181 = 48+19q
48+19q = 181
19q+48 = 181
19q+48-48 = 181-48 .... subtract 48 from both sides
19q = 133
19q/19 = 133/19 .... divide both sides by 19
q = 7

4 0
4 years ago
Given angle BEJ~RUW, what is RU?
harina [27]

RU is 34. To find the answer you can use a proportion. In this problem the proportion would be 60/51 = 40/x. You can then cross multiply giving you 51*40=60x. You can then solve for x which is your answer.

5 0
4 years ago
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