3 years ago

Which expression is equivalent to (2x + 4)2 − (2x2 + 6)?

Mathematics

2 answers:

lora16 [44]3 years ago

4 0

Answer:

2x^2+6x+10

Step-by-step explanation:

In the attached file

motikmotik3 years ago

4 0

Answer:

Step-by-step explanation:

i think question is not complete

would you check it out

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Step-by-step explanation:

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4 years ago

A direct variation exist between x and y. When x=4, y=3. What is the value of y when x=10

scoray [572]

Answer:

$y = 7.5$

Step-by-step explanation:

Given

Direct variation implies that:

$y = kx$

Where k is the constant of variation.

$x=4; y=3$

Required

Find y when $x = 10$

$y = kx$

Make k the subject

$k = \frac{y}{x}$

For: $x=4; y=3$

$k = \frac{3}{4}$

For: $x = 10$

$k = \frac{y}{x}$ becomes

$k = \frac{y}{10}$

Substitute $k = \frac{3}{4}$

$\frac{3}{4} = \frac{y}{10}$

Make y the subject

$y = \frac{3}{4} * 10$

$y = \frac{3* 10}{4}$

$y = \frac{30}{4}$

$y = 7.5$

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3 years ago

What is an equation parallel and perpendicular to the given line equation is y=2x - 5

sergiy2304 [10]

Answer:

This should help.

Step-by-step explanation:

The attached image will help.

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2 years ago

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Setler79 [48]

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Step-by-step explanation:

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3 years ago

Mrs. Parker has a small garden in her backyard. The total area of her garden is 3.5 square meters. The length is 5 meters.

german

Answer:

B. 0.7

Step-by-step explanation:

3.5/5=0.7

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2 years ago

Read 2 more answers