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alina1380 [7]
3 years ago
8

Please help! im very confused.​

Mathematics
1 answer:
Vitek1552 [10]3 years ago
8 0

Answer:

if am right it's 90

Step-by-step explanation:

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Your car repair bill was $390. You were charged $215 for parts and $35 per hour for labor.
Zolol [24]

Answer:

5 hours

Step-by-step explanation:

subtract 390 by 215 to get 175 then divide 175/35 to get 5

5 0
3 years ago
Which shows the following expression using positive exponents?
ziro4ka [17]
A ^ 3b ^ -2 / ab ^ -4, a ≠ 0, b ≠ 0
 First we rewrite the expression respecting the properties of the exponents.
 b ^ -2 = 1 / b ^ 2
 1 / b ^ -4 = b ^ 4
 We have then:
 a ^ 3b ^ -2 / ab ^ -4
 a ^ 3b ^ 4 / ab ^ 2
 answer:
 An expression using positive exponents is
 D a^3b^4/ab^2
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8 0
3 years ago
9. Alby says that the numbers in Pascal's Triangle are the values of the exponents on the variables in a binomial expansion. Is
Luba_88 [7]

Answer:

yes alby is correct

Step-by-step explanation:

4 0
4 years ago
Hi there! Please, please help me on these problems! And show how to do it, thanks!!
yan [13]
1). 8 x 5x - 8 x 3y
     40x - 24y

you have to multiply the eight inside the parentheses 
8 0
4 years ago
is the answer b ?? i could be wrong , but i thought that you'd have a 50% chance when flipping coins .
vovikov84 [41]

The experimental probability is how many times it landed on heads over the amount of times it was flipped.


The coin landed on heads 32 times out of 50 flips which is 32/50 which equals 0.64, which is 64%


The answer is D.


7 0
3 years ago
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