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3 years ago

Which are differences of perfect cubes? Select two options

Mathematics

2 answers:

OLga [1]3 years ago

4 0

Answer: c and d

Step-by-step explanation:

schepotkina [342]3 years ago

3 0

Answer: The last 3 choices

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Which expression is equivalent to 1 4 ( 3 x + 4 y ) + 3 ( 1 4 x + 2 3 y ) ? 3 2 x + 3 y 3 halves x plus 3 y 3 2 x + 2 y 3 halves

Nat2105 [25]

Answer:

3x/2 + 3y

Step-by-step explanation:

Given the expression 1/4 ( 3x + 4y ) + 3 ( 1/4 x + 2/3 y)

Open the parentheses

= 1/4(3x) + 1/4(4y) + 3(1/4x) +3(2/3y)

= 3/4 x + y + 3/4 x +2y

Collect like terms

3/4 x +3/4 x +y+2y

6/4 x + 3y

3x/2 + 3y

Hence the correct expression is 3x/2 + 3y

8 0

3 years ago

The question and answer choices are listed in the picture.

zepelin [54]

Given:
$L=2 \pi r( \frac{x}{360})$

Solution:
If we want to find the solution for r, we need to move the r to the left side first. So I reverse the side
$2 \pi r( \frac{x}{360})=L$

Move 2π to the right side. Because on the left side 2π acts as numerator, after it's moved to the right side, it becomes denominator.
$2 \pi r( \frac{x}{360})=L$
$r( \frac{x}{360})= \frac{L}{2 \pi }$

Move 360 to the right side. Because on the left side 360 acts as denominator, after it's moved to the right side, it becomes numerator.
$r( \frac{x}{360})= \frac{L}{2 \pi }$
$r(x)= \frac{360L}{2 \pi }$

Move x to the right side. Because on the left side x acts as numerator, after it's moved to the right side, it becomes denominator.
$r(x)= \frac{360L}{2 \pi }$
$r= \frac{360L}{2 \pi x}$

Then simplify the fraction
$r= \frac{360L}{2 \pi x}$
$r= \frac{180L}{ \pi x}$

The answer is second option

5 0

3 years ago

Solve the equation 6 - x - x = 18

Ksivusya [100]

Answer:

x = -6

Step-by-step explanation:

6 - (-6) - (-6) = 18

5 0

3 years ago

Which expression is equivalent to x+11<br>A.11x <br>B. 11+x<br>C 11-x<br>D.-x+11

Ksju [112]

Answer:

B. 11+x

Explanation:

Its the answer because in B it's the same as x+11 but in an opposite way.

11+x

x+11

6 0

4 years ago

Read 2 more answers

On the graph, two right triangles have the line as the hypotenuse. In this task, you will use these triangles to show that the s

Sav [38]

Answer:

i need the anwser to

Step-by-step explanation:

6 0

3 years ago