3 years ago

Please help these are not easy for me

Mathematics

1 answer:

Pavel [41]3 years ago

7 0

Answer:

12a^2 - 9a + 5

Step-by-step explanation:

(5a^2 - 6a - 4) - (-7a^2 + 3a - 9)

5a^2 + 7a^2 = 12a^2

-6a - 3a = -9a

-4 + 9 = 5

12a^2 - 9a + 5

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Lana71 [14]

Answer:

$\displaystyle 23$

Step-by-step explanation:

$\displaystyle 4p = p + 69 → -69 = -3p; 23 = p$

I am joyous to assist you at any time.

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3 years ago

What is 470,925.8 in expanded form

ICE Princess25 [194]

470,925.8 in expanded form is ...

400,000 + 70,000 + 900 + 20 + 5 + 0.8

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3 years ago

Read 2 more answers

What is the equation of the line that is parallel to y=1/2x+2

abruzzese [7]

When y =0 or when z =0

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3 years ago

Which square root should be placed between the number 17 and 18 on the number line.

Murrr4er [49]

17^2 = 289
18^2 = 324
Any of the numbers between 289 and 324 exclusive will have a root between 17 and 18
Eg sr(300) = 17.3205... is between 17 and 18 on the number line.
There are 33 other whole number answers you could pick

4 0

3 years ago

1 +3 (6 - 3n) = -6 - 4n<br> a) {11}<br> b) {-9}<br> c) { infinite solutions}<br> d) {5}

DochEvi [55]

Answer:

Step-by-step explanation:

1+3(6-3n)= -6-4n

1+18-9n= -6-4n

1+18+6= 9n-4n

25=5n

25/5=n

5=n

4 0

3 years ago