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Ganezh [65]
3 years ago
14

Two angles are comlementary. the first angle measures x and the second angle measures 3x-10. find x?

Mathematics
1 answer:
ryzh [129]3 years ago
6 0
X=25

4x-10=90
Add 10 to both sides
4x=100
Divide both sides by 4
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A manufacturing company produces engines for light aircraft . The graph shows the number of engine produced each year since the
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Answer:

y=13x+32

149 engines in 9th year

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

From a look at the photo and the data plot can be represented by the function, so we can pick 2 points in our given graph

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The standard form of a linear equation is:

y = mx + b where:

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We know the slope of the function can be found as following:

m = \frac{y2 - y1}{x2 - x1}  so in this situation we have:

<=> m=\frac{99-60}{5-2}=\frac{39}{3}=13

=> y = 13x + b (1)

Because the line goes through point  (2,60) so we substitute it into (1):

60 = 13*2 + b

<=> b = 60 - 26 = 34

=> y = 13x + 34

Now we will substitute x=9 to find the engines produced by company in 9th year as:

y=13(9)+32\\y=117+32=149

Hence, the company will produce 149 engines in 9th year

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3 years ago
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Answer:

Answer:

Option 2nd is correct.

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Step-by-step explanation:

Given the function:

Solve:

First calculate:

f[g(x)]

Substitute the function g(x)

Replace x with x-8 in the function f(x) we get;

The distributive property says that:

Using distributive property:

⇒

Put x = 6 we get;

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

This is in standard form so we have to factor this into

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(x-4) = \sqrt{15\\}

x-4= ± 3.87298334621

x-4 = 3.87298334621                      x-4= -3.87298334621

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7 0
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Answer:

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