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Zolol [24]
3 years ago
12

1. Find the value of 3x -2x^2 ; when x = -3. ^ means "power of"

Mathematics
1 answer:
ANEK [815]3 years ago
3 0
Answer: -9
Explanation: 3x-2x^2 x=3
We replace each x with 3.
3(3)-2(3)^2
Then we solve the equation using pemdas
3(3)-2(9)
9-18= -9
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Can you ask 5 people to name as much states in 60 seconds please?
Lyrx [107]

Answer:

Alabama, Alaska, American Samoa, Arizona, Arkansas.

California, Colorado, Connecticut.

Delaware, District of Columbia.

Florida.

Georgia, Guam.

Hawaii.

Idaho, Illinois, Indiana, Iowa.

Kansas, Kentucky.

4 0
3 years ago
-15
Sloan [31]
Try the first option if that's an option
3 0
3 years ago
Which of the following are measurements of the sides of a right triangle?
mojhsa [17]

sides of right angle triangle follows Pythagoras theroem

which states

a^2 +b^2 = c^2

where a , b and c are sides of right angle triangle.

here none of options do not follow this.

so answer is option D

4 0
3 years ago
Read 2 more answers
What is the value of (f-g)(7)?<br>f(x)=2+x;g(x)=x^2+5<br>(f-g)(7)=[1]​
Sav [38]

Answer:

Alright so on this type of problem you just perform the operation they ask for, which in this case is subtraction.  

Your first step will be to set up the problem:

f(x) - g(x)

Next you will substitute in your values:

(2x + 1) - (x2 - 7)

The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:

2x + 1 - x2 + 7

Then combine your like terms:

2x - x2 + 8

Lastly put your expression in standard form (highest exponent to lowest)

-x2 + 2x + 8

Hope this helped!

Step-by-step explanation:

8 0
3 years ago
Let
DedPeter [7]

Whatever is inside parentheses first [g(x)], is what you would evaluate first, then after that, you would substitute that answer into the f(x) function for EVERY "X" YOU SEE:

[2x² + 5]² + [2x² + 5] + 2

[2x² + 5]² + [2x² + 7]↓

This is your final answer. You get it?

5 0
4 years ago
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