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alisha [4.7K]
3 years ago
11

What is ans of this question a b c d ​

Mathematics
1 answer:
nikitadnepr [17]3 years ago
4 0

Answer:

option B is correct......

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Tim can paint a room in 6 hours. Ben can paint the same room in 4 hours. How many hours would it take Tim and Ben to paint the r
Sladkaya [172]
Find the average.

6+4=10 
10/2=5
It takes 5 hours 

3 0
3 years ago
Joshua scored the same number of points in each of his last 3 basketball games. He
Arte-miy333 [17]

Answer:

24

Step-by-step explanation:

Let x be the points he scored in his best game. x-8 would then represent each of his last 3 games.

(x-8)*3 = 2x

3x-24=2x

x=24

7 0
3 years ago
HELP NEEDED I GOT 30 MINUTES TO COMPLETE THIS!
timurjin [86]

Answer:

It's b as far as I know.

Step-by-step explanation:

cause you should trust me because you only have 30 mins

4 0
3 years ago
The quadratic function g(x) = ax^2 + bx + c has the complex roots (-5+9i) and (-5-9i). (you may assume that a = -1) what is the
gavmur [86]

Answer:

  • b = -10, c = -106

Step-by-step explanation:

<h3>Given</h3>

<u>Quadratic function </u>

  • g(x) = ax^2 + bx + c

with the roots:

  • (-5+9i) and (-5-9i)
<h3>To find </h3>
  • b and c if a = -1
<h3>Solution</h3>

<u>As we know the sum of the roots is -b/a and the product of the roots is c/a. Substituting values and solving for b and c:</u>

  • (-5 + 9i) + (-5 - 9i) = -b/-1
  • -10 = b
  • b = -10

And

  • (-5 + 9i)(-5 - 9i) = c/-1
  • (-5)² - (9i)² = -c
  • 25 - 81(-1) = -c
  • - c = 25 + 81
  • - c = 106
  • c = -106

g(x) = -x² -10x - 106

4 0
3 years ago
What is the GCF of -2xy and -9y
NNADVOKAT [17]

Answer:

- y(2x + 9)

Step-by-step explanation:

The GCF doesn't have to be a number. In this case, it is -y because both the -2xy and -9y share it. It's also easier when you take out a negative. Once you take the GCF out, your new expression should be:

- y(2x + 9)

5 0
3 years ago
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