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3 years ago

HELP HELP PLEASE IT DUE TODAY

Mathematics

1 answer:

Goryan [66]3 years ago

5 0

Answer:

$\frac{ - 1 {n}^{7} }{8}$

Step-by-step explanation:

1.) expand the denominator

$( - 2 {n}^{4} ) ^{3}$

${ - 2}^{3} {n}^{4 \times 3}$

$= - 8 {n}^{12}$

2.)simplify

${n}^{5} \div - 8 {n}^{12}$

$= \frac{1}{ - 8 {n}^{ - 7} }$

$= \frac{ - 1 {n}^{7} }{8} or \: \frac{ {n}^{7} }{ - 8}$

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Which is an equation of the line through (2,-1) and (0,5)

ElenaW [278]

Answer:

$y = mx + c \\ - 1 =2 m + c...(1) \\ 5 = (0)m + c \\ c = 5...(2) \: sub \: in \: (1) \\ - 1 = 2m + 5 \\ m = - 3 \\ y = - 3x + 5$

4 0

3 years ago

Determine the value of x in the diagram. 112 x < 68 112 =

nasty-shy [4]

Answer:

The value of x is 68, all the angles in a parrelelogram equal 360, 68 + 112 + 112 + x = 360, all the angles are 292, and subtracted from 360 you get 68

Step-by-step explanation:

3 0

3 years ago

If a plant manufacturing carpet backing has a cylindrical tank that is 3 meters high and is 6 meters in diameter, what is the vo

Alik [6]

The formula for the volume of a cylinder is $\pi r^{2} h$

We know the diameter, so we can easily find the radius. The diameter is twice as long as the radius, so we divide the diameter by 2 to find the radius. This is equal to 6/2 = 3. Now, we plug our numbers into the formula.

$\pi * 3^{2} *3= \pi *9*3=27 \pi m^{3}$

This could also be written: $84.82 m^{3}$

Both 27 pi cubic meters and 84.82 cubic meters are correct answers, so choose whichever one you think your teacher would prefer.

7 0

4 years ago

Read 2 more answers

Could someone help me with this please?

Greeley [361]

It is possible to prove that the right triangles are congruent through the right angle hypotenuse side theorem.

4 0

3 years ago

Melissa buys 212 pounds of salmon and 114 pounds of swordfish. She pays a total of $31.25, and the swordfish costs $0.20 per pou

eimsori [14]

Answer:

C. $16.60

Step-by-step explanation:

Let the cost per pound of salmon be represented by x

The cost per pound of swordfish be represented by y

Melissa buys 2 1/2 pounds of salmon and 1 1/4 pounds of swordfish. She pays a total of $31.25

2.5 × x + 1.25× y = $31.25

2.5x + 1.25y = 31.25

The swordfish costs $0.20 per pound less than the salmon.

y = x - 0.20

Hence, we substitute

2.5x + 1.25y = 31.25

2.5y + 1.25(x - 0.20) = 31.25

2.5y + 1.25x - 0.25 = 31.25

2.5x + 1.25x = 31.25 + 0.25

3.75x = 31.5

x = 31.5/3.75

x = $8.4

The cost per pound of salmon be represented by x = $8.4

y = x - 0.20

y = 8.4 - 0.20

y = $8.2

The cost per pound of swordfish be represented by y = $8.2

The cost of a pound of salmon and sword fish

= $8.4 + $8.2

=$16.60

3 0

3 years ago

HELP HELP PLEASE IT DUE TODAY ​

HELP HELP PLEASE IT DUE TODAY