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2 years ago

Please help me I have 10 minutes!!

Mathematics

1 answer:

Diano4ka-milaya [45]2 years ago

7 0

Answer:

it's d

Step-by-step explanation:

≤ may refer to:

Inequality (mathematics), relation between values; a ≤ b means "a is less than or equal to b"

so the answer D is right because the face always ponit to the bigger number if x is -14 then this stament would be true

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What is the value of h?

algol [13]

The two angles shown are supplementary angles, meaning that there sum equals 180. Knowing this you can set up an equation and solve for h...

3h + 18 + 15h = 180

Combine like terms

18h + 18 = 180

Subtract 18 to both sides

18h + (18 -18) = 180 - 18

18h = 162

Isolate h by dividing 18 to both sides

18h/18 = 162 /18

h = 9

Hope this helped!

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2 years ago

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(-3 - 5i)(-3 + 5i) =

Black_prince [1.1K]

Hello,
You don't know (a-b)(a+b)=a²-b²?

(-3)²=9
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Estimate the quotient 63.5 dividend by 5

Contact [7]

The estimate is twelve because five goes into sixty roughly twelve times.

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2 years ago

Is it parallel or is it perpendicular?

zavuch27 [327]

It is parallel, which means that the new line should have the same slope of the given line $y=-5/4 x+7$
and the slope is the coefficient of x
so the slope = -5/4
in order to solve this problem we have to know the equation of the slop
$slope= \frac{y-y1}{x-x1}$
where (x1,y1) is the point by which the new line passes through

$\frac{-5}{4}=\frac{y-(-4)}{x-1}$
$\frac{-5}{4}= \frac{y+4}{x-1}$
-5(x-1)=4(y+4)
-5x +5=4y+16 (by subtracting 16 from both sides)
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3 years ago

Determine the surface area of a sphere, in terms of pi, Given a radius of 15 inches

anastassius [24]

Answer:

900π

Step-by-step explanation:

surface area of a sphere: 4πr²

=> 4 × π × 15²

=> 900π

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2 years ago