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kodGreya [7K]
3 years ago
8

There are 27 students in a class. 13 are

Mathematics
1 answer:
Feliz [49]3 years ago
4 0

Answer: Seniors: 13/27 Juniors:14/27

Step-by-step explanation:

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This is really confusing. Thanks for helping.
Mandarinka [93]
Count change of signs to tell positive roots
then replace x with -x and evaluate, then count change in sign for negative roots


initially
+, -, -, +, +, -
3 changes
3 or 1 positive roots


replacing x with -x
-,-,+,+,-,-
2 changes
2 or 0 negative roots



B is answer
5 0
3 years ago
What is the multiplicative inverse of −9?
Romashka-Z-Leto [24]

Answer:

The answer to your question is: letter C

Step-by-step explanation:

Multiplicative inverse is a pair of numbers which product gives 1.

Then

x will be our number

                     -9x = 1

                        x = - 1/9

because

                    -9 x  \frac{-1}{9} = \frac{9}{9} = 1

8 0
3 years ago
In this picture, m∠AOC = 65° and m∠COD = (2x + 4)°. If ∠AOC and ∠COD are complementary angles, then what is the value of x?
dmitriy555 [2]

Answer:

I think it's C hope it helps you

4 0
3 years ago
help please i’ll give brainliest an explanation would help a lot too because i don’t know how to do this
anygoal [31]

Answer:

Exponential Function

Step-by-step explanation:

If you graph the numbers you'll get an exponential function  graph. Hope this helps!

3 0
3 years ago
How do i find the value of x and y in problem 11?! i need help!!
STALIN [3.7K]
Do you know how many degrees an angle is?
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3 years ago
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