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3 years ago

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

Mathematics

1 answer:

Andru [333]3 years ago

5 0

Answer:......................................

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Kite WXYZ is graphed on a coordinate plane. What is the approximate perimeter of the kite? Round to the nearest tenth. 10.6 unit

Archy [21]

Answer-

Perimeter of the kite is 16.2 units

Solution-

As WXYZ is a kite, so two disjoint pairs of consecutive sides are congruent, i.e WX=XY and WZ=ZY

So, perimeter of the kite WXYZ is,

$=2(\overline{WX}+\overline{WZ})$

And

$\overline{WX}=\sqrt{(1-3)^2+(1-4)^2}=\sqrt{(-2)^2+(-3)^2}=\sqrt{4+9}=\sqrt{13}$

$\overline{WZ}=\sqrt{(1-3)^2+(1+3)^2}=\sqrt{(-2)^2+(4)^2}=\sqrt{4+16}=\sqrt{20}$

So, perimeter will be,

$P=2(\sqrt{13}+\sqrt{20})=16.15\approx 16.2\ units$

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3 years ago

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aksik [14]

Answer:

the answer is the first one I think but I'm pretty sure

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3 years ago

Write an equation in slope- intercept form for the line with slop-1/4 and y-intetcept 5

Rashid [163]

Y=mx+b
m=slope
b=yintercept

given
slope=-1/4
yint=5

y=-1/4x+5

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3 years ago

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For a science project, James needs to fill a tennis ball with sand but he doesn't know how much he will need. He measured the di

klio [65]

Do not go to that link it is a virus and if you go to “goggle” and press the camera icon on the top right and take a picture of the question you should get the answer there

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2 years ago

Which statement best explains the relationship between

-Dominant- [34]

Answer: They are not perpendicular because their slopes are not negative reciprocals.

Step-by-step explanation:

For these two lines to be perpendicular, their slopes have to be negative reciprocals.

Slope of FG.

F = (-4, 1)

G = (0, -2)

= (Y₂ - Y₁) / (X₂ - X₁)

= (-2 - 1) / (0 + 4)

= -3/4

Slope of HJ

J = (0 , 4)

H = (-4, -2)

Slope = (Y₂ - Y₁) / (X₂ - X₁)

= (-2 - 4) / (-4 -0)

= 6/4

= 3/2

The slopes of these lines are not negative reciprocals so these lines are not perpendicular.

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3 years ago