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anygoal [31]
3 years ago
14

What are the zeros of f(x) = x2 + 3x – 10?

Mathematics
1 answer:
Nady [450]3 years ago
3 0
Step One
Factor f(x)
f(x) = (x + 5)(x - 2)

Step Two
The zeros occur when either (x + 5) = 0 or (x - 2) = 0

x + 5 = 0
x = -5

x - 2 =0
x = 2

Step 3
Record the zeros
(-5,0) or (2,0) <<<<<< answer.
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6 0
3 years ago
What ratio is proportional to 18/21
Doss [256]

Answer:

There are many.

Step-by-step explanation:

When you say proportional, you are looking for a ratio that is equivalent to the ratio given. In your case, there are many so you might need to be more specific. But still, we can help you figure it out.

An easy way to do this would be to scale it down to its simplest form and then move upwards. To find proportional ratios, just multiply denominator and the denominator with the same factor.

\dfrac{18}{21} = \dfrac{6}{7}

That is your ratio in its simplest form. Now we can scale up, I'll show you how to do one completely:

\dfrac{6}{7} x \dfrac{2}{2} = \dfrac{12}{14}

That's the same ratio scaled up by a factor of 2.

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\dfrac{6}{7} x \dfrac{3}{3} = \dfrac{18}{21}

That's the ratio given

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\dfrac{6}{7} x \dfrac{4}{4} = \dfrac{24}{28}

Scaled up by a factor of 4

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\dfrac{6}{7} x \dfrac{5}{5} = \dfrac{30}{35}

Scaled up by a factor of 5.

The list goes on and on.


3 0
3 years ago
Pleeeeeaaassseee help
borishaifa [10]
The runner ran 5/6 then he ran 9/10 more how much did he run in all
4 0
3 years ago
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-3 / 4 + (-2 / 7) - (- 5 ½)
Igoryamba
Answer:
125/28
4.46428571
4 13/28
There all right
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6 0
4 years ago
Read 2 more answers
Suppose the tree diagram below represents all the students in a high school and that one of these students were chosen at random
andrey2020 [161]
The question is: If the student is known to be the girl (300 girls) what is the probability of being right handed.

We know that there are 300 girls, and that out of those 300, there are 250 girls right handed. 

Divide 250 with 300

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0.83333, or 83.33% is your answer

hope this helps
4 0
3 years ago
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