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PolarNik [594]
4 years ago
14

I GOT TWO QUESTIONS FOR 15 POINTS

Mathematics
1 answer:
Oksanka [162]4 years ago
7 0

Answer:

1. p; C

2. x

Step-by-step explanation:


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What would 897,100 be if rounded to the nearest ten thousand?
Finger [1]
90,000

the reason is because look at the 1,000 place that rounds the 10,000 place to 0 and carries the 1 over to the 100,000 place


6 0
3 years ago
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I need this ASAP!<br><br><br>7a-8b=10x
Rufina [12.5K]
Ok so if you notice every choice is solved for a, all you have to do is isolate "a" in 7a-8b=10x. Start by moving 8b to the other side and to change the sign. Now it is 7a = 10x + 8b. Then divide everything by 7 and you get a = (10x + 8b)/7
8 0
4 years ago
Somebody please help its for a test idk what im doing (30) points!!!! and explain if you can
Ksju [112]

Answer:

29 and -26

Step-by-step explanation:

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8 0
3 years ago
How to find r in this equation using combination formula C(8,r)=28<br>​
slavikrds [6]

Answer:

r = 2

Step-by-step explanation:

We have the formula of ^nC_r = \frac{n!}{r! (n-r)!}

Now, it is given that ^8C_r = \frac{8!}{r! (8-r)!} = 28 ........ (1)

And we have to find the value of r which satisfy the above equation.

So, r! (8-r)! = \frac{8!}{28} = \frac{40320}{28} = 1440

Now, we have to use the trial method to find the value of r.

For r = 1, 1! (8-1)! = 7! = 5040 \neq 1440

Hence, r can not be 1.

Now, put r = 2, 2! (8-2)! = 2 \times 6! = 1440

Therefore, r = 2 (Answer)

5 0
3 years ago
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Find the greatest common factor of 17 and 25
Ann [662]

Answer:

1

Step-by-step explanation:

A common factor is a number such that both 17 and 25 are divisible by that number. In this case, the greatest common factor of 17 and 25 is 1.

6 0
3 years ago
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