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Arada [10]
3 years ago
9

Anyone in 10th grade please help me because I have to pass this later at 10 pm:(

Mathematics
1 answer:
Alenkinab [10]3 years ago
6 0

18) 19m^8n^8-\left(4m^5n\right)\left(3m^3n^7\right)

=19m^8n^8-4m^5n\cdot \:3m^3n^7

=19m^8n^8-12m^8n^8

=7m^8n^8

19) \left(-5cd\right)\left(-3c^4d\right)-\left(7c^2d^2\right)\left(2c^3\right)

=5cd\cdot \:3c^4d-7c^2d^2\cdot \:2c^3

=15c^5d^2-14c^5d^2

=c^5d^2

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Please help the questions are in the picture above
svp [43]

Not sure if I'm right but I think it's 3(x - 6) (x^2 + 5x)

Step-by-step explanation:

3x^3 - 3x^2 - 90x

Apply GCF: 3 (x^3 - x^2 - 30)

Split 30 into -6 and 5

(x^3 - 6x^2) (5x^2 - 30x)

GCF of both: x^2 (x - 6) and 5x (x - 6)

DON'T FORGET TO CARRY THE 3

And your answer is 3 (x - 6) (x^2 + 5x)

5 0
3 years ago
PLEASEEE I NEED HELP ASAPPPPPP DUE IN 6 MINS! PLEASE
sergey [27]

Step-by-step explanation:

60x + 3300 = 24000

60x = 24000 - 3300

60x = 20700

x = 20700 ÷ 60

x = 345

x ≤345

5 0
2 years ago
A rectangle has length X +5 and width X +4 if the perimeter of the rectangle is 42 m what are the length and width of the rectan
Maru [420]
The perimeter is 2(length) + 2(width), so 2(x+5) + 2(x+4) = 42 m. In solving for x, you find 6. Plug 6 back into your length and width where x originally was, and you find your length to be 11m, and your width to be 10m. Hope this helps!
6 0
3 years ago
Read 2 more answers
A right rectangular prism has a length of 10 in., a width of 12 in., and a height of 16 in. the dimensions of the prism are halv
mamaluj [8]
236 i took the test this morning i am 100% sure :)) 
5 0
3 years ago
WHAT IS THE ANSWER??
Nookie1986 [14]

Steps to solve:

3/x+2 - √x-3 when x = 19

~Substitute

3/19+2 - √19-3

~Simplify

3/21 - √16

~Simplify

1/7 - 4

~Subtract

-3 6/7

Best of Luck!

5 0
3 years ago
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