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Phoenix [80]
3 years ago
7

4a^2+2a+4a^2-5 Simplify the expression

Mathematics
2 answers:
frozen [14]3 years ago
5 0
Add <span><span>4<span>a2</span></span><span>4⁢<span>a2</span></span></span> and <span><span>4<span>a2</span></span><span>4⁢<span>a2</span></span></span> to get <span><span>8<span>a2</span></span><span>8⁢<span>a2</span></span></span> .<span><span><span><span>8<span>a2</span></span>+<span>2a</span></span><span>−5</span></span><span><span><span>8⁢<span>a2</span></span>+<span>2⁢a</span></span><span>-<span>5</span></span></span></span>
raketka [301]3 years ago
4 0
it would be 8a^2+2a-5 but if u need value of a you can apply quadratic formula
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Please help!!! 10 points!
BigorU [14]

Answer:

I'd say about 45 degrees :)

Step-by-step explanation:

3 0
2 years ago
Mitch is buying candy bars for his friends. He wants to give 2 bars to each friend, and he wants to have 10 spare bars. He can a
gregori [183]

Answer:

A. 2f + 10 = 28

Step-by-step explanation:

28 candy bars.

He wants 10.

28 - 10.

18 candy bars.

He gives each friend 2.

18 divided by 2.

9.

He can treat 9 friends.

Step 1: Subtract 10 from both sides.

2f+10=28

which would take away the 10 and subtract 10 from 28. (That would be Jack's bars.)

2f = 28.

Step 2: Divide by 2 on both sides.

2f = 28

which would cancel out the 2f. And Whatever is done to the left is done to the right, meaning you would divide 28 by 2 aswell. (Dividing up the candy bars among his friends).

f = 9

6 0
3 years ago
Ashley solved the exponential equation 3x + 1 = 15 and her work is shown below. What is the first step she did incorrectly?
Aleks04 [339]
"Step 1: log 3^(x+1) = log15" is the step among the following choices given in the question that she did incorrectly. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has actually come to your desired help.
7 0
3 years ago
Read 2 more answers
Through which two points could a line of rotation be placed so that the base of the resulting cylinder will have a radius of 5 c
vagabundo [1.1K]

Answer:

G and H

Step-by-step explanation:

just took the test in edg.

4 0
3 years ago
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A hotel charges $90 per day for a double room $80 per day for a single room. If a total of 80 single and double rooms are occupi
SashulF [63]

Answer:

the number of single room is 27 and the number of double room  is 53

Step-by-step explanation:

Let x is the number of single room

Let y is the number of double room

We know that:

x + y = 80 <=> x = 80 -y (1)

80x +90y= 6930 (2)

Substitute (1) in (2) we have:

80 (80 - y) + 90y = 6930

<=> 6400 - 80y +90y = 6930

<=> y = 53

> x = 80 - 53 = 27

the number of single room is 27 and the number of double room  is 53

4 0
2 years ago
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