3 years ago

If f (x) = x2 + 4x-12. find f(2).

Mathematics

1 answer:

Otrada [13]3 years ago

6 0

Answer:

f= x^2+4x−12 /x

Step-by-step explanation:

Step 1: Divide both sides by x.

fx /x = x^2+4x−12 /x

f= x^2+4x−12 /x

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What is the simplified form of 4r + 5s – 16r + 3s?

irakobra [83]

Hello!

You can only combine numbers with the same variable

4r - 16r = -12r
5s + 3s = 8s

The answer is -12r + 8s

Hope this helps!

8 0

3 years ago

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Tell whether the angles are adjacent or vertical. Then find the value of x. The angles are . Question 2 x=

weeeeeb [17]

Answer:

Adjacent

x = 14

Step-by-step explanation:

Find the diagram attached

Adjacent angles places side by side and can also be on the same straight line. Since 5x and x+96 are on the same straight line ans placed side by side, then the angles are adjacent.

The sum of angle on a straight line is 180 degrees, hence;

5x + x+ 96 = 180

6x = 180 - 96

6x = 84

x = 84/6

x =14

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3 years ago

In an arithmetic series, what is the sum of the first 22 terms if the first term is 12 and the common difference is 3?

Vilka [71]

Answer:

561

Step-by-step explanation:

an = dn - (a-d)

The difference is 3.

The first term is 12.

an = 3n - (12-3)

an = 3n - 9

Put n as 1, 2, 3, 4, 5 ....22.

3(1) - 9 = -6

3(2) - 9 = -3

3(3) - 9 = 0

3(4) - 9 = 3

3(5) - 9 = 6

...

3(22) - 9 = 57

Add the first 22 terms.

-6+-3+0+3+6+9+12+15+18+21+24+27+30+33+36+39+42+45+48+51+54+57

= 561

4 0

3 years ago

Can someone help me?

loris [4]

Answer:

i do not know srry

Step-by-step explanation:

i think u should try and solve it with a better teacher

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3 years ago

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The ages of three friends are represented by three consecutive odd numbers. The sum of their ages is 63. If the youngest is repr

son4ous [18]

Answer:

x+(x+2)+(x+4)=63

Step-by-step explanation:

3 0

3 years ago