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Setler79 [48]
3 years ago
11

Help!! 45 pts f(x)= 2x²-3x+4 What is the value using the theorem for f(3) with explanation?

Mathematics
1 answer:
polet [3.4K]3 years ago
7 0

Answer:

f(x) = 5

Step-by-step explanation:

f(x) = 2x^2 - 3x+4

f(3) =2x^2 - 3x + 4

f(3) = 2(3)^2 - 3(3) + 4

f(3) = 18 - 13

f(x) = 5

Hope this helped :-)

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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.

---------------------------------------------------------------------------------------

\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
Which expression is a factor of 4ab + 4a − 3b − 3?
e-lub [12.9K]
<span>4ab + 4a − 3b − 3
=4a(b + 1) - 3(b+1)
= (b+1)(4a - 3)

(b+1) and (4a - 3) are factors 

answer
</span><span>4a − 3</span>
7 0
3 years ago
2a. Find all of the possible values for A, B
erica [24]

Answer

-200

Step-by-step explanation:

I got the answer because my teacher gave me the answer.

8 0
4 years ago
What is the slope of a line that is perpendicular to the line y=4x+8
DiKsa [7]

Answer:

-1/4

Step-by-step explanation:

y = 4x + 8

- the slope of this line = 4

The slope of a line perpendicular to it will be - 1/ 4

8 0
3 years ago
What's 4.6153 rounded to the nearest thousandths
andreev551 [17]

Answer:

4.615

stays the same

7 0
3 years ago
Read 2 more answers
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