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3 years ago

What is the coefficient of 15-8y?

Mathematics

2 answers:

Nikitich [7]3 years ago

8 0

Answer: 15

Step-by-step explanation:

SVEN [57.7K]3 years ago

5 0

Answer: its 15 and 8

Step-by-step explanation:

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How do you solve -2(x+5)=4

fenix001 [56]

Answer:

Step-by-step explanation:

$-2(x+5)=4\qquad\text{divide both sides by (-2)}\\\\\dfrac{-2\!\!\!\!\diagup(x+5)}{-2\!\!\!\!\diagup}=\dfrac{4\!\!\!\!\diagup^2}{-2\!\!\!\!\diagup_1}\\\\x+5=-2\qquad\text{subtract 5 from both sides}\\\\x+5-5=-2-5\\\\x=-7$

5 0

3 years ago

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1000 gram piece of metal has a volume of 25 ml what is it’s density

Masja [62]

Answer:

0.0014126 I guess

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3 years ago

1+1+1+1+1+1+1+1+1+1+18+18+18+18+18+18+80+80+80+80+100+100+100+100+1000

Darya [45]

Answer:

1836

Step-by-step explanation:

5 0

4 years ago

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With a detailed explanation from the internet 1/(x-5)+3/(x+2)=4

irga5000 [103]

Answer:

$\boxed{ \sf x=\dfrac{4\pm\sqrt{43}}{2}}$

Explanation:

$\rightarrow \sf \dfrac{1}{x-5}+\dfrac{3}{x+2}=4$

make the denominators same

$\rightarrow \sf \dfrac{1(x+2)}{(x-5)(x+2)}+\dfrac{3(x-5)}{(x+2)(x-5)}=4$

join the fractions together

$\rightarrow \sf \dfrac{x+2+3x-15}{(x-5)(x+2)}=4$

cross multiply

$\rightarrow \sf x+2+3x-15=4(x-5)(x+2)$

simplify

$\rightarrow \sf 4x-13=4x^2-12x-40$

group the variables

$\rightarrow \sf 4x^2-16x-27 = 0$

use quadratic formula

$\rightarrow \sf x = \dfrac{-\left(-16\right)\pm \sqrt{\left(-16\right)^2-4\cdot \:4\left(-27\right)}}{2\cdot \:4}$

simplify the following

$\rightarrow \sf x=\dfrac{4\pm\sqrt{43}}{2}$

7 0

2 years ago

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Need help please help

azamat

Answer:

Hope you get it right! :)

Step-by-step explanation:

7 0

3 years ago