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3 years ago

A diver descends 130 feet below the surface over 35 minutes. what was his average rate of descent

1 answer:

4 0

I believe you would do the feet ,130, divided by the minutes ,35, to get how many feet per minute. It would get you a never ending decimal of 3.714285. So every minute he would drop about 4 feet. You will have to put it how it says to for what your answering is. If it says round to the whole number then he would drop 4 feet, but I hope this helps you in any way :)

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Bob asked each of 40 friends how many minutes they took to get to work.

Effectus [21]

This is quite a unique question but I think the time taken is 36

5 0

3 years ago

Can someone help me please

nataly862011 [7]

Answer:

D is 90 E is 81 F is 99

Step-by-step explanation:

D is 90 because a straight angle equals 180 degrees. E is 81 because it is directly across from 81. F is 99 because 180-81 is 99

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2 years ago

Let f ( x ) = 10 x + 14 f − 1 ( x ) =

Agata [3.3K]

Answer:

f^-1(x) = (x -14)/10

Step-by-step explanation:

You can find the inverse function by solving for y:

x = f(y)

Here, that is ...

x = 10y +14 . . . . . use the definition of f(y)

x -14 = 10y . . . . . . subtract 14

(x -14)/10 = y . . . . divide by the coefficient of y

So, your inverse function is ...

f^-1(x) = (x -14)/10

6 0

3 years ago

A triangle has a height of 15 in. and a area of 120 in. What is the length of it's base?

jek_recluse [69]

Answer:

b=16

Step-by-step explanation:

Formula~ 1/2*b*h

1/2*15*b=120

7.5b=120

b=120/7.5

b=16

(you can substitute the value to check-i've done it below)

1/2*16*15=?

if you work it out, the ans will be 120, therefore the ans is correct!

7 0

3 years ago

(z + 3)2<br> Draw me an area that shows the expression

mario62 [17]

Answer: 2z + 6

Step-by-step explanation: Distribute the 2 to z and 3.

7 0

3 years ago