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Alinara [238K]
3 years ago
9

What is the domain of f(x)=9-x² A(.fx)≥9 B.All real numbers C.-3≤x≤3 D. x≤9

Mathematics
2 answers:
QveST [7]3 years ago
8 0

Answer:

B  hope this helps :)

Step-by-step explanation:

Ber [7]3 years ago
3 0

Answer:

B. all real numbers

Step-by-step explanation:

hope that helps

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Simplify,write equivalent expressions. 1/6(15a+20b)
lutik1710 [3]
1/6* (15a+20b)
= 1/6* 15a + 1/6* 20b (Distributive property)
= 2.5a + 10/3*b

The final answer is 2.5a+ 10/3b

Hope this helps~
6 0
3 years ago
On a piece of paper graph y= 2x-3. Then determine which answer matches the graph you drew. (there is 4 options not just three)
boyakko [2]

Answer:

A

Step-by-step explanation:

since the slope (2) is positive the graph is similar to y=x, so graphs B and D are eliminated

so when x=1 we have

y=2(1)-3

y=2-3

y=-1

so the point is (1,-1), graph C eliminated

so it's A

3 0
3 years ago
What is the answer to 76?
vovangra [49]

Answer:

13.2 minutes or 13 minutes 12 seconds.

Step-by-step explanation:

1. Count how much water drains the first pump every minute. Let the volume of pool be D. Every minute first pump drains D/11 water.

2. Working together(6 minutes) First pump drains 6D/11 water, hence the second pump drains 5D/11 water.

3.Count how much water drains second pump per minute -> (5D/11)/6= 5D/66

4. It takes the second pump 66 minutes to drain pool 5 times, thus it takes 13.2(66/5) minutes to drain the pool, which is 13 minutes 12 seconds.

7 0
3 years ago
I’m really struggling would really appreciate if someone could help!!!!!
ladessa [460]

9514 1404 393

Answer:

  A)  29/40

Step-by-step explanation:

The formula for this is ...

  P(A or B) = P(A) + P(B) - P(A and B)

Filling in the given values, you have ...

  P(A or B) = 9/20 +1/2 - 9/40

  P(A or B) = 18/40 +20/40 -9/40 = (18+20-9)/40

  P(A or B) = 29/40 . . . . matches choice A

7 0
3 years ago
PLEASE HELP I NEED HELP ASAP.
Artyom0805 [142]
Your answer is 29.2 good sir.
Hope this helps :)
6 0
3 years ago
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