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marin [14]
3 years ago
10

Solve for x using the given diagram

Mathematics
1 answer:
blagie [28]3 years ago
7 0

Answer:

<h2>x = 1</h2>

Step-by-step explanation:

Look a t the picture.

The triangles on the picture are similar.

Therefore the sides are in proportion:

\dfrac{8x}{10}=\dfrac{4}{5x}              <em>cross multiply</em>

(8x)(5x)=(4)(10)

40x^2=40           <em>divide both sides by 40</em>

x^2=1\to x=\sqrt1\\\\x=1

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Temka [501]

Answer:

-8 \sqrt{6}

Step-by-step explanation:

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.

\sqrt{-1} =i \\i*i = -1

7 0
3 years ago
A circle has a circumference of 18. It has an arc of length 6. What is the central angle of the arc, in degrees?
nadya68 [22]
Circumference: 2πr C=18 so r= 18/2π= 9π

Arc length = rθ 6=(9π)θ θ=6/9π

Convert to degrees by multiplying by 180/π

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4 0
3 years ago
the radius of a circle is 5 meter what is the area,in square meter,of circle? Round to the nearest tenth
Slav-nsk [51]

Answer:

78.54 rounded to the tenths it is 78.5

Step-by-step explanation:

I did the math. And I did my work like this

5*5=25

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Rounded to hundredths 78.54

Rounded to tenths 78.5 Hope this helps, let me know if correct, and have a great day!!

6 0
2 years ago
Read 2 more answers
If f(x)=3^2 and g(x)=4x^3+1 , what is the degree of (f*g)(x)?
N76 [4]
I'm assuming you meant to say f(x) = 3x^2. If that assumption is correct, then the degree is found by multiplying the leading terms from both f(x) and g(x). The leading terms are 3x^2 and 4x^3

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The exponent of that result is 5, so the degree of (f*g)(x) is 5

Answer: 5
5 0
3 years ago
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frez [133]
Cds 3 dvds 5

Sue will use 6 shelves with 3 cds on each and 5 dvds on each.
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