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ella [17]
3 years ago
6

Please help me!!!!!!!!!!i need to finish by tonight!!

Mathematics
1 answer:
Viktor [21]3 years ago
4 0
Number 3.
opens up
vertex (1,2)
idk maybe because it is on the right side. its positive

number 4.
opens up as well
Vertex (-2,0)
no because it is negative and on the left. Idk just a guess for this one
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mojhsa [17]
I- please ask a question. This is not a question
7 0
3 years ago
Read 2 more answers
The quotient of 2 and the sum of a number and 1.
snow_lady [41]

Answer:

2 / (x + 1).

Step-by-step explanation:

If the number is represented by x the expression is:

2 / (x + 1).

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3 years ago
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A square has a perimeter of 36 millimeters.<br> What is the area of the square?
Nana76 [90]

Answer:

81 mm²

Step-by-step explanation:

3 0
3 years ago
HURRY Which is an equation in point-slope form for the line that passes through the points (−1,4) and (3,−4) ?
mash [69]

Answer:

y-4=-2(x+1)

Step-by-step explanation:

y-y1=m(x-x1)

m=(y2-y1)/(x2-x1)

m=(-4-4)/(3-(-1))

m=-8/(3+1)

m=-8/4

m=-2

y-4=-2(x-(-1))

y-4=-2(x+1)

7 0
3 years ago
Maya is solving the quadratic equation by completing the square.
kvasek [131]

Step-by-step explanation:

factor 4 out of the variable terms, as this helps.

but my approach is simply to define the target and then calculate "backwards".

we want to find

(ax + b)² = a²x² + 2abx + b²

and now we compare with the original equation :

a²x² = 4x²

a² = 4

a = 2

2abx = 16x

2×2×bx = 16x

4b = 16

b = 4

b² = 16, but we have only 3, so we need to subtract 16-3 = 13 from the completed square.

so, our equation is

(2x + 4)² - 13 = 0

(2x + 4)² = 13

2x + 4 = sqrt(13)

2x = sqrt(13) - 4

x = sqrt(13)/2 - 2

6 0
1 year ago
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