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2 years ago

10

A dolphin was swimming 28 meters below the ocean's surface. It changed its depth to avoid a predator and ended up 21 meters belo

w the surface.

1 answer:

yKpoI14uk [10]2 years ago

6 0

Hmmmmmmmmmmmmmmmmmmmmmm

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Find the value of x.<br> xo<br> (x-20)<br> (2x + 10)<br> (x + 40)

kykrilka [37]

Answer:

66

Step-by-step explanation:

We can write the following equation to solve

$360 = x + (2x + 10) + (x - 20) + (x + 40)$

Reduce

360 = 5x + 30

5x = 330

x = 66

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2 years ago

Find the zeros of the function.<br> f(x) = 2x2 – 2x – 12

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

2x^2-2x-12

This has solutions of x=3 and x= -2

3 0

2 years ago

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Given that f(x) = x2 − 3x + 3 and g(x) = the quantity of x minus one, over four , solve for f(g(x)) when x = 5. (1 point)

Anna007 [38]

Rewrite g(x) as x-1

------

4

and then substitute this result for x in f(x) = x^2 - 3x + 3:

f(g(x)) = (x-1)^2 / 4^2 - 3(x-1)/4 + 3.

At this point we can substitute the value 5 for x:

f(g(5)) = (5-1)^2 / 4^2 - 3(5-1)/4 + 3

= 16/16 - 3(4/4) + 3 = 1 - 3 + 3 = 1

Therefore, f(g(5)) = 1.

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2 years ago

Solve 210 ÷ 30 = ___ using mental math.<br><br> 7<br> 70<br> 700<br> 7,000

SIZIF [17.4K]

The answer would be 7

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2 years ago

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7x – 4 and 6x – 4 – x are equivalent using the interactive tool.

ss7ja [257]

7X-4=6X-4-X
7X-6X+X=0
2X=0
X=0

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3 years ago

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