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ololo11 [35]
3 years ago
15

Can someone help me with this?

Mathematics
1 answer:
algol133 years ago
8 0

Answer: x=12

Step-by-step explanation:

we know that sum of a triangle is 180 degrees

one angle is 90 degree

the sum will be 90+(2x+1)+(5x+5)=180

substract 90 from both sides

2x+1+5x+5=180-90

7x+6=90

7x=90-6

divide by 7

x=12

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Find the volume of the solid under the surface z = 5x + 9y 2 and above the region bounded by x = y 2 and x = y 3.
Yanka [14]
Call the region in the x-y plane, bounded by x=y^2 and x=y^3, \mathcal D. Then the volume under the given surface is

\displaystyle\iint_{\mathcal D}(5x+9y)\,\mathrm dA=\int_{y=0}^{y=1}\int_{x=y^3}^{x=y^2}(5x+9y)\,\mathrm dx\,\mathrm dy=\frac{83}{140}
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3 years ago
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ratelena [41]

Answer:

C. ∠10

Explanation:

A theorem states that the two angle that are in the same side and are opposite to each other, they add up to 180°, which is supplementary.

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3 years ago
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Contact [7]

Answer:

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3 years ago
What is the value of x=2x + 9 = -27
Sergio039 [100]
<h3>I'll teach you how to solve 2x + 9 = -27</h3>

-----------------------------------------------------

2x + 9 = -27

Subtract 9 from both sides:

2x+9-9 = -27-9

SImplify:

2x=-36

Divide both sides by 2:

2x/2 = -36/2

Simplify:

x= -18

Your Answer Is x= -18

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5 0
3 years ago
Read 2 more answers
Which is an equivalent form of the equation 2x - y = 12?
aalyn [17]
2x-y=12
-y=12-2x
(-y=12-2x)devide -1
y = -12+2x
y=2x-12
ANSWER = C
7 0
3 years ago
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