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Helen [10]
3 years ago
6

I need some help! In direct variation, as y increases, x decreases. True or false

Mathematics
1 answer:
MrMuchimi3 years ago
7 0
I’m pretty sure that’s false-
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What is the absolute value of the complex number -4- square root 2i?
DENIUS [597]
Sqrt ( (-4)^2 + (-sqrt2i)^2 )

=  sqrt (16 + 2)

= sqrt 18

= sqrt9 * sqrt 2

= 3 sqrt2 (answer)
7 0
4 years ago
Find the coordinates of midpoint D.<br> (a + bc)<br> (-a-b,c)<br> (2a-2b, -c)<br> (-2a-2b, c)
schepotkina [342]

Answer:

(-a-b,c)

Step-by-step explanation:

midpoint D : ((-2b-2a)/2 ;(2c+0) /2 )

(-2b-2a)/2 = 2(-b -a)/2 = -b-a

(2c+0) /2 =2c/2 = c

3 0
3 years ago
Paul wants a bike that cost $400. If he had saved 60% of this amount, how much had he saved.
enyata [817]
Hey!


To solve this problem, we'll first start by creating an equation.

<em>Our Created Equation :
</em>
\frac{400 x 60}{100}

Now we'll solve it step by step to find the answer.

So we should begin by multiplying the to portion of our fraction.

<em>400 x 60 = 24,000</em>

Next, we divide our answer by 100, since that is the next step to our equation.

<em>24,000 ÷ 100 = 240</em>

So, our answer is...

<em>Paul has already saved</em>  $240.00  <em>of the $400.00 he must pay for a new bike.</em>

Hope this helps!


- Lindsey Frazier ♥
4 0
3 years ago
An object has a lot if volume if it takes up a lot of space​
sveta [45]

Answer:

That's correct but, is this your question? I am confused. If you edit it, I can try to answer your question! :)

7 0
3 years ago
A regular hexagon has a radius of 20in. What is the approximate area of the hexagon
Wittaler [7]

Answer:

A= 1038 in²....

Step-by-step explanation:

There are several ways to find the area of a regular hexagon

In a regular hexagon, split the figure into triangles.

Find the area of one triangle.

Multiply this value by six.

We will apply the formula of area of regular polygon:

A= 1/2r²nsin(360/n)

r = radius

n = number of sides of the regular polygon

We know that,

r= 20 in

n= 6

Now substitute the values in the formula:

A= 1/2(20)²(6)sin(360/6)

A= (20)²(3)sin(360/6)

A= (20)²(3)sin(60)

A=3*(20)² *√3/2

A= 1200 * √3/2

A= 600*√3

A= 1038 in²....

Therefore the approximate area of hexagon is 1038 in²....

8 0
3 years ago
Read 2 more answers
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