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NNADVOKAT [17]
3 years ago
11

115 = 20 + 2.5x Answers X= 38 X= - 37/38

Mathematics
1 answer:
KIM [24]3 years ago
7 0
The answer would be X=38
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9s plus 3=57 pls help me
m_a_m_a [10]
Your ultimate goal is to get the variable secluded all by itself.  You'll have to use the opposite operation to do this and remember, what you do to one side, you have to do to the other.
1. 9s + 3 = 57
2. Subtract 3 from each side. This will result in 9s = 54
3.  To undo the multiplication of 9s you'll divide both sides by 9.  9s/9 = 54/9
4.  The ending result is: s=6
5.  Go back and check your work by substituting it in your original equation.
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3 years ago
Integrate from 0 to pi/2 (sinx + cosx)/(9+16sin(2x)) dx
vichka [17]
<span>Integration from 0 to pi/2 of (sinx + cosx)/(9+16sin(2x)) dx = 0.109861</span>
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3 years ago
Write the equation of a line that is parallel to Y=
zepelin [54]

Answer:

The slope has to be the same so adjust the y-intercept.

Step-by-step explanation:

y=1/2x-10.5

5 0
3 years ago
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Marcus bought r r movie posters for $5 each. Write an algebraic expression for total amount Marcus spent.
Ivenika [448]
5r= T (total)
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8 0
3 years ago
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Help please. I’m stuck on this one
Nastasia [14]

Answer:

b = 25m

Step-by-step explanation:

Hi there!

We're given angle B and the length of <em>a</em> in this right triangle. We must solve for the length of <em>b</em>. <em>a</em> and <em>b</em> are the two legs of the right triangle.

In this case, we can use the tangent ratio:

tan\theta=\displaystyle\frac{opposite}{adjacent}

Plug in the given information:

tan\displaystyle\frac{\pi}{4} =\displaystyle\frac{b}{25}\\\\25tan\displaystyle\frac{\pi}{4} =b\\\\b=25

Therefore, b = 25m.

We can also use this using special triangle rules. \displaystyle\frac{\pi}{4} radians is equal to 45 degrees, making this a 45-90-45 triangle. This would make <em>a</em> and <em>b</em> equal in length.

I hope this helps!

5 0
3 years ago
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