3 years ago

What is the difference between 3.9 and -1.6

Mathematics

2 answers:

mars1129 [50]3 years ago

8 0

If you subtract the two you will get 5.5

Scilla [17]3 years ago

5 0

The answer is 2.3!! I hope this helps

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If f(x+5)=x^+kx+30,k=

Vilka [71]

30 divided by 5 is 6, so the other term is (x+6). (x+5)(x+6) becomes x^2+11x+30, so k is equal to 11.

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2 years ago

THIS IS FOR THE SAME TEST IF YOU WANT TO HELP ILL GIVE 50 POINTS

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Answer: 0.5%

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over the weekend Mario rode 43 miles. On Sunday he rode 3 miles more than 2/3 his distance on Saturday. How many miles did he ri

Ierofanga [76]

X+ (2x/3 +3) = 43
$3x + 2x + 9 = 43$
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2 years ago

Which choices are equivalent to the expression below? Check all that apply.

Fittoniya [83]

Answer:

A, D // other options are wrong.

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2 years ago

CAN YOU GUYS PLEASE HELP ME?!!!!!!

DanielleElmas [232]

Answer:

6) C

$-2r\left(8r+5\right):\quad -16r^2-10r\\\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac\\=-2r\cdot \:8r+\left(-2r\right)\cdot \:5\\=-2\cdot \:8rr-2\cdot \:5r\\\mathrm{Simplify}\:-2\cdot \:8rr-2\cdot \:5r:\quad -16r^2-10r$

7) B

$4a\left(a^2+7a+4\right):\quad 4a^3+28a^2+16a$

$\mathrm{Distribute\:parentheses}\\=4aa^2+4a\cdot \:7a+4a\cdot \:4\\=4a^2a+4\cdot \:7aa+4\cdot \:4a\\\mathrm{Simplify}\:4a^2a+4\cdot \:7aa+4\cdot \:4a:\quad 4a^3+28a^2+16a$

Hope this helps and have a great day!!!

$Sofia$

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2 years ago

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