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Norma-Jean [14]
4 years ago
13

Please help 15 points

Mathematics
2 answers:
Luda [366]4 years ago
6 0
I think it’s 5 I used another app and it said -5,5 which I think you choose the positive number
erma4kov [3.2K]4 years ago
6 0

Step-by-step explanation:

\tt{ x^2+x-25=x } ⠀

\tt{x^2+x-x=25  } ⠀

\tt{ x^2+\cancel{x}-\cancel{x}=25 } ⠀

\tt{ x^2=25 } ⠀

\tt{ x=\sqrt{25} } ⠀

\tt{ x=5~ or~ x=-5 } ⠀

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Find the value of x. Give the answer in simplest radical form.
Vilka [71]

Answer:

X = 8√2.

Step-by-step explanation:

In a 45-45-90 triangle the ratio of the sides are x:x:√2 x.

So here, x = 8 and the side X = 8√2.

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Find the arc length of the semicircle with a radius of 5
valentinak56 [21]
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How do you multiply a whole number by a fraction
kow [346]

I dont have enough time to try to type it out for you but here is a tutorial I found that can get the job done: https://www.wikihow.com/Multiply-Fractions-With-Whole-Numbers


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7 0
4 years ago
Use the table below to find f ( 4) - f (0) + f(-8), Choose your correct response from the options below.
marshall27 [118]

Answer:

-4f

Step-by-step explanation:

Hi! Let's work on simplifying this.

f(4) = 4f

f(0) = 0, because anything x 0 is 0

f(-8) = -8f

Our equation is 4f + -8f

We can get rid of the plus negative...

4f - 8f

So we get:

-4f

6 0
3 years ago
Alona has some wood cutouts of two different shapes - square and triangle. Each square cutout is 6 mm thick and each triangular
kobusy [5.1K]

Answer:

18

Step-by-step explanation:

Volume is a product of cross-sectional area and height and relresented as V=Ah where V is volume, A is cross-sectional area and h is height.

For the square, since each has a thickness of 6mm then for 24 of them the height will be 24*6=144 mm

Since the volume and cross sectional area of the triangle should be the same, then the height should also be the same.

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7 0
4 years ago
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