What's -3a(5a-7) ? I can't figure It out .

2 answers:

6 0

I think maybe -15 but I’m not sure

3 0

It is - 15 a ^ 2 + 21 a.
You use distributive property

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DanielleElmas [232]

Y = 4x/3+19/3 move all terms that dont contain to y to the right then solve

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2 years ago

jeka57 [31]

Answer:

Step-by-step explanation:

$a_n=a_1+d(n-1)\\\\a_1=3\\d=5\\\\a_n=3+5(n-1)\\a_n=3+5n - 5\\a_n=5n-2$

6 0

2 years ago

DedPeter [7]

Could you take a clearer picture

7 0

2 years ago

natali 33 [55]

Answer:

12:21

Step-by-step explanation:

4 + 7 = 11

33/11 = 3

3x4=12 & 3x7=21

Therefore, ratio is, 12:21

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2 years ago

jarptica [38.1K]

Answer:

cfhjytgfhe5tgnbg5etjgnbg345jthgbyu6jtngfyu6jyh

Step-by-step explanation:

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3 years ago