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2 years ago

5(2x-3) –3(x+4)/9?

Mathematics

1 answer:

kvv77 [185]2 years ago

8 0

Answer:

Step-by-step explanation:

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All 4 questions please

scZoUnD [109]

Answer:

π = S/2πrh
v = √2E/m
b = (-7a+c)/2
x =3y-1

Step-by-step explanation:

$S = 2\pi rh\\Divide\:both\sides\:of\:the\:equation\:by\:2rh\\\\\frac{S}{2rh} = \frac{2 \pi rh}{2 rh} \\\\\pi = \frac{S}{2rh}$

$E = \frac{1}{2} mv^2\\\\E = \frac{mv^2}{2} \\\\Cross\:multiply\\\\2E =mv^2\\Divide\:both\:sides\:of\:the\:equation\:by\:m\\\frac{2E}{m} = \frac{mv^2}{m} \\\\\frac{2E}{m} =v^2\\Square\:root\:both\:sides\:of\:the\:equation\\\sqrt{\frac{2E}{m} } = \sqrt{v^2} \\\\\sqrt{\frac{2E}{m} } =v\\\\v =\sqrt{\frac{2E}{m} }$

$7a+2b =c\\Isolate\:b\\\\2b =c-7a\\2b= -7a+c\\Divide\:both\:sides\:of\:the\:equation\:by \:2\\\frac{2b}{2} =\frac{-7a+c}{2} \\\\b = \frac{-7a+c}{2}$

$y = \frac{1}{3} (x+1)\\\\y = \frac{x+1}{3}\\\\Cross\:multiply \\3y =x+1\\Isolate \:x\\3y -1=x\\\\x =3y-1$

7 0

3 years ago

Find 18% of 14. Use a decimal.

posledela

Answer:

Step-by-step explanation:

2.52

4 0

2 years ago

Read 2 more answers

Round to the nearest hundredth<br> 1.359.377

pashok25 [27]

Answer:

1.360.000

Step-by-step explanation:

I hope this is correct, but you take the number behind the nearest hundredth. If it's five and up you go up a number and if it's 4 or lower you go down

7 0

3 years ago

I need help please.

enot [183]

Answer:

The answer is D. 2

Step-by-step explanation:

exponential form

exponents equal

move constant to the right

subtract the number

divide both sides by 2

6 0

3 years ago

Which if the following items showed the greatest percentage in bulk

Katyanochek1 [597]

No image shown but just remember that percentage is out of 100

0.03 is 3%

7 0

2 years ago