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MA_775_DIABLO [31]
3 years ago
7

11 - 3{ x + 2} = 9 + x what is the value of x

Mathematics
1 answer:
solmaris [256]3 years ago
8 0

Answer: -1

Step-by-step explanation:11 - 3(x+2) = 9+x

11 - 3x - 6 = 9 + x

11 - 6 - 3x = 9 + x

5 - 3x = 9 + x

-3x - x = 9 - 5

-4x = 4

x = 4 ÷ -4

x= -1

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Given \tan A = \frac{7}{{24}}, find the cos B
Natali5045456 [20]

We are given

tan(A)=\frac{7}{24}

we know that

tan(A)=\frac{opposite}{adjacent}

so, we get

opposite =7

adjacent=24

now, we can find hypotenuse

hypotenuse=\sqrt{7^2+24^2}

hypotenuse=25

now, we can draw triangle and then switch vertices accordingly

we can find cos(B) using second triangle

cos(B)=\frac{adjacent}{hypotenuse}

In second triangle:

adjacent=7

hypotenuse =25

so, we get

cos(B)=\frac{7}{25}................Answer

8 0
3 years ago
Just need help with #2 <br> Please help!<br> Thank you <br> (15 points)
IrinaK [193]
So you write into the table that x = 1 then y will equal 1*1.5 which equal to 1.5. So under x = 1 in y table you write y = 1.5, and so on

6 0
2 years ago
Read 2 more answers
PLEASE ANSWER ASAP *picture attached*
SVETLANKA909090 [29]

Answer:

x^{2} -2x-8

Step-by-step explanation:

(f g)(x) is equal to f(x) times g(x).  So you just need to multiply both of the equations together.  Use the foil method to multiply (x+2)(x-4)

(fg)(x)=f(x)*g(x)\\\\(fg)(x)=(x+2)(x-4)\\\\(fg)(x)=x^{2} -4x+2x-8\\\\(fg)(x)=x^{2} -2x-8\\

I have attached an image to better explain the foil method

4 0
3 years ago
In AVWX, XV<br> W X and mW<br> - 27°. Find m_X.
SashulF [63]

Answer:

m<X = 126^{o}

Step-by-step explanation:

From the given isosceles triangle, we have;

<W and <V as the base angles

So that,

m<W = m<V = 27 (base angles of an isosceles triangle are equal)

Thus,

m<X + m<V + m<W = 180 (sum of angles in a triangle)

m<X + 27 + 27 = 180

m<X + 54 = 180

m<X = 180 - 54

       = 126

m<X = 126^{o}

8 0
2 years ago
Someone please help I will mark you as brainliest
irakobra [83]

Answering pretty sure yes

Step-by-step explanation:

7 0
3 years ago
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