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Irina-Kira [14]

2 years ago

13

Please helpppppppppppp

1 answer:

stira [4]2 years ago

6 0

The answer would be 20

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Can someone help me in this plssss I really need it

kompoz [17]

Answer:

$\boxed{-3xy^{2}\sqrt [3] {2x^{2}}}$

Step-by-step explanation:

Your expression is

$\sqrt [3] {-54x^{5}y^{6}}$

Here's how I would simplify it.

$\begin{array}{rcll}\sqrt [3] {-54x^{5}y^{6}} & = & \sqrt [3] {(-1)^{3}\times 2 \times 27 \times x^{2} \times x^{3} \times y^{6}} & \text{Factored the cubes}\\& = & \sqrt [3] {(-1)^{3} \times 3^{3}\times x^{3} \times y^{6}\times 2 \times x^{2}} & \text{Grouped the cubes}\\\end{array}$

$\begin{array}{rcll}& = & \sqrt [3] {(-1)^{3} \times {3^{3}\times x^{3} \times y^{6}}} \times\sqrt [3] { 2 \times x^{2}} & \text{Separated the cubes}\\&=& \mathbf{-3xy^{2}\sqrt [3] {2x^{2}}} & \text{Took cube roots}\\\end{array}$

$\text{The simplified expression is $\boxed{\mathbf{-3xy^{2}\sqrt [3] {2x^{2}}}}$}$

6 0

3 years ago

Solve<br> x+y= -1<br> x - y = -7<br> using elimination.

Andreas93 [3]

Answer:

(-4, 3)

x = -4, y = 3

6 0

2 years ago

Write 2^40 as a power with the following base<br> a) 2^2<br> b)2^5<br> c)2^8<br> d)2^10

Akimi4 [234]

Answer:

2^2×20

Step-by-step explanation:

2^2×20

because 2×20=40

so, 2^2×20=2^40

3 0

1 year ago

What is the actual distance, in miles, between two cities that are 3 inches apart on the map?

frosja888 [35]

Answer:

Step-by-step explanation: to answer this question I need to know what 1 inch to a mile is. like every one inch= 12 miles

4 0

2 years ago

A taxicab service charges a flat fee of $7 plus an additional $1.25 per mile driven. Show the relationship between the total cos

Zarrin [17]

Answer with Step-by-step explanation:

We are given that

Flat fee of taxicab=$7

Cost of one mile=$1.25

1.We have to show that relationship between total cost and the number of miles driven.

2.We have to find independent variable and dependent variable

3.We have to write an equation to model the relationship and make a table to show the cost of 4 to 10 miles.

1.Let x be the number of miles driven by taxicab and total cost y of taxicab.

According to question

$y=1.25x+7$

This is a relation between number of miles drive and total cost.

2. Independent variable : It is that variable which does not depend on value of another variable .

Dependent variable : it is that variable which depend on value of another variable.

We can see that y depend on x and value of x does not depend on any value.

Therefore, y is dependent variable and x is independent variable.

Substitute x=4 then we get

$y=1.25(4)+7=$ $12

Substitute x=5 then get

$y=1.25(5)+7=$ $13.25

$y=1.25(6)+7=$ \$14.5

$y=1.25(7)+7=$ $15.75

$y=1.25(8)+7=$ $17

$y=1.25(9)+7=$ $18.25

$y=1.25(10)+7=$ $19.5

5 0

2 years ago