3 years ago

Help me please! (look at the picture) questions 10 and 11

Mathematics

1 answer:

arsen [322]3 years ago

7 0

x(f) is correct ok enjoy your qnswer

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987÷z=164.5

AveGali [126]

Answer:

z=6

Step-by-step explanation:

987/z=164.5

multiply both sides by z

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3 years ago

A line that is perpendicular to y=-4-10 passing through the point (8,11)

guapka [62]

Answer:

Step-by-step explanation:

11=4(8)+b

11=32+b

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i think

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2 years ago

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scoundrel [369]

$\dfrac{c^2-4}{6c^4+15c^3}\div\dfrac{c^2+4c+4}{12c^3+30c^2}=\dfrac{c^2-2^2}{3c^3(2c+5)}\div\dfrac{c^2+2(c)(2)+2^2}{6c^2(2c+5)}\\\\_{\text{use}\ a^2-b^2=(a-b)(a+b)\ \text{and}\ (a+b)^2=a^2+2ab+b^2}\\\\=\dfrac{(c-2)(c+2)}{3c^3(2c+5)}\cdot\dfrac{6c^2(2c+5)}{(c+2)^2}=\dfrac{(c-2)}{c}\cdot\dfrac{2}{(c+2)}=\boxed{\dfrac{2(c-2)}{c(c+2)}}$