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3 years ago

Y= -2(x - 1)^2 + 8 the answer

Mathematics

1 answer:

Dahasolnce [82]3 years ago

8 0

Y = (-2x +2)^2 +8
(-2x^2 +4) +8
-2x^2 +12

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Find the value of x so that FED ~ZYZ <br> need help asap

Paul [167]

Answer:

x=7.5

Step-by-step explanation:

To show that the triangles are similar, we simply need to show that all sides are proportionate.

So, we create a proportion

$\frac{FE}{ZY} =\frac{ED}{XY} = \frac{FD}{XZ}$

Then we plug in the values

$\frac{6}{12} = \frac{7}{14} = \frac{2x-5}{22}$

$\frac{6}{12}$ and $\frac{7}{14}$ can be simplified to $\frac{1}{2}$ , so that is our ratio of similarity

then we know

$\frac{1}{2} = \frac{2x-5}{22}$

Now solve

1. Cross multiply

2×(2x-5) = 22

2. Distribute

4x-8 = 22

4x=30

x=7.5

There is your answer, x=7.5

Hope this helped.

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3 years ago

Is each line parallel, perpendicular, or neither parallel nor perpendicular to the line −2x+3y=12?

crimeas [40]

Answer:

I like to compare them all the same. Put all the equations in slope intercept form y=mx+b

So you need to isolate y.

Step-by-step explanation:

Main equation to compare y=2/3x + 4

If they have the same slope they are parallel. If they have opposite reciprocal slopes then they are perpendicular.

First one is y=2x +12 neither

Second one is y= -3/2x -1 perpendicular

Third one is y= 2/3x - 1 parallel

Forth one is y= 2/3x + 11/3 parallel

3 0

3 years ago

The shape below is a horizontal cross section of a figure. Select all the possible figures that could have this shape as a cross

Dvinal [7]

Answer:

D. Rectangular prism

Step-by-step explanation:

I believe the answer is D. Rectangular prism

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3 years ago

What's 5and24/10 divided by 4?

Alchen [17]

First, convert 5 and 24/10 into a mixed fraction:

5 and 24/10 = 74/10

Now, divide 74/10 by 4:

74/10 ÷ 4 = 74/10 × 1/4
  = 74/40
  = 37/20
  = 1 and 17/20

(Remember that dividing requires you to reciprocate 4)

Hope this helps!

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3 years ago

Graph the image of QRS after a rotation 270º counterclockwise around the origin.

sergij07 [2.7K]

Answer:

Q=(1,-5)

R=(5,-5)

S=(2,-7)

Step-by-step explanation:

8 0

3 years ago