Please answer this question

Answers

Answer 1

Answer:

Answer:

D. 1,300

Step-by-step explanation:

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PLZ HELP!! The question is attached!

Factor this trinomial. x2 + 2x - 3

A. (x + 3)(x + 1)
B. (x - 3)(x - 1)
C. (x + 3)(x - 1)
D. (x - 3)(x + 1)

Answers

$x^2+2x-3=(x+3)(x-1)$

Answer:

C A p e x

Step-by-step explanation:

Use the rules for multiplication by powers of 10 to calculate 3x100.

Answers

So would it be 3000 then

What is the ratio of X:Y. 12Y equal 7X

Answers

$22y=7x\ /:(7y)\n \n (22y)/(7y)= (7x)/(7y) \n \n (22)/(7) = (x)/(y)$

If h(x) = −5x − 10, find h(−2).
−20
1.6
−1
0

Answers

h(x) = -5x - 10
h(-2) = -5(-2) - 10
h(-2) = 10 - 10
h(-2) = 0

The solution is 0.

The answer is D, zero. Here are the steps.

h(x) = -5x - 10

h(-2) = -5(-2) - 10

h(-2) = 10 - 10

h(-2) = 0

Have a great day!

An inlet pipe on a swimming pool can be used to fill the pool in 40 hours. The drain pipe can be used to empty the pool in 45 hours. If the pool is 14 filled and then the inlet pipe and drain pipe are opened, how many more hours would it take to fill the pool? Round your answer to two decimal places, if needed.

Answers

Answer:

It would take 90 hours to fill the pool.

Step-by-step explanation:

There is a mistake in the question so it is corrected below:

An inlet pipe on a swimming pool can be used to fill the pool in 40 hours. The drain pipe can be used to empty the pool in 45 hours. If the pool is 1/4 filled and then the inlet pipe and drain pipe are opened, how many more hours would it take to fill the pool?

Now, to find the hours would it take to fill the 1/4 pool.

Let the hours it take to fill the $(1)/(4)$ pool be $h.$