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3 years ago

Can you help me solve this problem please? Solve 6n = 2n – 8.

1 answer:

5 0

First move the 2n over to the other side by subtracting it
so
4n=-8
then divide 4n by 4 and do the same to the other side
so
n= -8/4
n= -2

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1/8 to the -3rd power

rodikova [14]

(1/8)^-3

First apply the exponent to the numerator and denominator
(1^-3/8^-3)

Then flip the fraction to get rid of negative exponents
8^3/1^3

Then evaluate exponents
512/1

Divide the numerator by the denominator
512

Final answer: 512

5 0

3 years ago

If f(x) = -2(5)^x , what if f(2)

BaLLatris [955]

Answer:

-50

Step-by-step explanation:

Put 2 where x is and do the arithmetic.

f(2) = -2(5^2) = -2(25) = -50

3 0

3 years ago

Find slope intercept form of 5x+8y=120 passing through (4,5)

yarga [219]

Answer:

$y=-(5/8)x+(15/2)$ or $y=-0.625x+7.5$

Step-by-step explanation:

The question is

Find the slope intercept form of the line parallel to the line 5x+8y=120 passing through (4,5)

step 1

Find the slope of the given line

we have

$5x+8y=120$

isolate the variable y

$8y=-5x+120$

$y=-(5/8)x+15$

The slope of the given line is m=-5/8

step 2

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are the same

The slope of the parallel line to given line is m=-5/8

step 3

Find the equation of the line into slope intercept form

The equation of the line into slope intercept form is equal to

$y=mx+b$

we have

m=-5/8 and point (4,5)

substitute and solve for b

$5=-(5/8)(4)+b$

$b=5+(20/8)$

$b=60/8=15/2=7.5$

substitute

$y=-(5/8)x+(15/2)$

$y=-0.625x+7.5$

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4 years ago

Find the GCF of 260,80,50

pantera1 [17]

Answer:

Step-by-step explanation:

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3 years ago

A submarine travels 168 miles in 7 hours. At this rate, how many miles will the submarine travel in 2 1/2

Damm [24]

Answer:

Step-by-step explanation:

(168 mi)/(7 hr) = (24 mi)/hr

(2.5 hr) × (24 mi)/hr = 60 mi

3 0

3 years ago