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Nimfa-mama [501]
3 years ago
8

Which is equivalent to x3y–7? x cubed y Superscript 7 StartFraction x cubed Over y Superscript 7 EndFraction StartFraction x cub

ed Over y Superscript negative 7 EndFraction StartFraction y Superscript 7 Over x cubed EndFraction
Mathematics
1 answer:
butalik [34]3 years ago
4 0

Answer:

x^3y^{-7} =  \frac{x^3}{y^7}

Step-by-step explanation:

Given

x^3y^{-7}

Required

The equivalent

We have:

x^3y^{-7}

Apply the following rule of exponents

a^{-b} = \frac{1}{a^b}

So, we have:

x^3y^{-7} = x^3 * \frac{1}{y^7}

x^3y^{-7} =  \frac{x^3}{y^7}

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I really need some help it's hard to understand
Naddik [55]

Answer:

the answer is a- 60

Step-by-step explanation:

A triangular prism has three rectangular sides and two triangular faces. To find the area of the rectangular sides, use the formula A = lw, where A = area, l = length, and h = height. To find the area of the triangular faces, use the formula A = 1/2bh, where A = area, b = base, and h = height.

6 0
3 years ago
From 9:30 am to 5:45 pm, how many hours is that? Please show your work.
aalyn [17]
The answer is 8 1/4 hours
5 0
3 years ago
if a dollar was worth a dollar back then today is worth 3 dollars if you had 52$ back then how much would be worth today?
MissTica

Answer:

I think it is  $156

Step-by-step explanation:

Multiply the numbers

6 0
3 years ago
Read 2 more answers
A force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work is done in stretching it
Troyanec [42]

Answer:

W = 15/4 ft . ib

Step-by-step explanation:

Force = 10ib

According to hooked law, f(x) = kx

x = 4inches = 4/12 ft

x= 1/3ft

f(x) = 1/3k

10 = 1/3k

k = 30 ib/ft

f(x) = 30x

Workdone = integral of f(x) with its limit

6 inches = 6/12 ft

= 1/2ft

W = integral(1/2 to 0) of 30x

W = 15x^2(1/2 to 0)

W = 15(1/2)^2 - 15(0)^2

W = 15(1/4) - 0

W = 15/4 ft. Ib

4 0
3 years ago
Astrid is in charge of building a new fleet of ships. Each ship requires 40 tons of wood, and accommodates 300 sailors. She rece
gogolik [260]

Answer:Astrid needs 280 tons of wood

Step-by-step explanation:

Because:

1 ship requires 40 tons of wood=accomodates 300 sailors

We must:

2100, sailors needed to be accomodated

÷

300, sailors that can be accomodated by 1 ship that requires 40 tons of wood

=7 groups of 300 sailors that can be accomodated by 1 ship that requires 40 tons of wood.

So:

I ship that requires 40 tons of wood × the 7, groups = 280 tons of wood.

I hope this helps! Im sorry its too complicated.

Simplier:

2100 ÷ 300= 7

40 × 7= 280

6 0
3 years ago
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