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3 years ago

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

2 answers:

5 0

Add 4a24⁢a2 and 4a24⁢a2 to get 8a28⁢a2 .8a2+2a−58⁢a2+2⁢a-5

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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I don’t understand how to do 1 a.

nikitadnepr [17]

a. 6 x 5 = 30

b. 5.6 x 5 = 28

a. 20 devided by 5 = 5.6

b. 36 devided by 5 = 7.2 (i dont know, that sounds like a pretty tall person to me)

3 0

3 years ago

What is 1/36 written as an exponent using a base of 6?

grin007 [14]

6^(-.5) or 6^(-1/2) are both 1/36

3 0

3 years ago

Mr. Standford’s greenhouse has the dimensions shown. The volume of the greenhouse is 90 cubic yards. Find the missing dimension

salantis [7]

Hey read the image I have attached. Ignore what I am typing here I need to type 20 characters.

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4 years ago

Find all y such that the distance between the points (8,10) and (4,y) is 20.

andriy [413]

Answer:

y = 394

Step-by-step explanation:

8 0

3 years ago

Trey had 440 songs on his mp3 player.now he has 473 songs.what is the percent of increase in the number of songs on his mp3 play

olga55 [171]

Answer:

There is 7.5% increase in the number of songs on his mp3 player.

Step-by-step explanation:

Original Songs in mp3= 440 songs

Final Songs in mp3= 473 songs

We need to find percent of increase in the number of songs on his mp3 player.

The formula used is: $Percent \ of \ increase = \frac{Final \ Value \ -\ Original \ Value}{Original \ Value} \times 100$

Now putting values and finding percent of increase

$Percent \ of \ increase = \frac{Final \ Value \ -\ Original \ Value}{Original \ Value} \times 100\\Percent \ of \ increase = \frac{473-440}{440} \times 100\\Percent \ of \ increase = 7.5\%$

So, there is 7.5% increase in the number of songs on his mp3 player.

7 0

3 years ago