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enyata [817]
2 years ago
10

Find f(–2) for the function f(x) = 3x^2 – 2x + 7

Mathematics
2 answers:
seraphim [82]2 years ago
4 0
Replace every x in the function with a -2. 3(-2)^2 - 2(-2) + 7. Simplifying gives you 3(4) + 4 + 7. Do the math now. 12 + 4 + 7 = 23
allochka39001 [22]2 years ago
3 0

You're correct its 23 on edge

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Raul works for the city transportation department he made a table to show the number of people that can be transported on a diff
Andru [333]

Answer:

1 : 45

Step-by-step explanation:

225 divided by 5 equals 45. You can now use this ratio to determine the number of people with different amounts of buses; when you change x from 1 to n, you would need to multiply 45 by n, and you will have your new ratio column in the table.

Hope this helps :)

3 0
3 years ago
Read 2 more answers
How do u multiply monimials
krek1111 [17]
Two multiply 2 monomials, you have to multiply the coefficients and add the degrees. For example

2x^2 × 3x^3 =

6x^5
6 0
3 years ago
how many different license plates can be formed if each plate plate has 5 different digits followed by 1 letter
Elina [12.6K]

This is a fundamental counting principle problem and can be solved by multiplying the number of choices you have for each digit of the license plate.

For the first five digits you can choose from the numbers 0,1,2...,9 or 10 choices.

A we cannot repeat the digits, so, first five digits will be:

10 × 9 × 8 × 7 × 6

Now the next 1 digit will all be letter all being different

There are 26 letters in the alphabet.. for our second digit we have 26 choices,

Here is the whole calculation:

= 10 × 9 × 8 × 7 × 6 × 26

= 786240

To learn more about calculating possibilities from the given link

brainly.com/question/4658834

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3 0
1 year ago
For what value of x is line m parallel to line n?   Enter your answer in the box. x =  ?
Zielflug [23.3K]

<u>Answer-</u>

<em>The value of x is </em><em>10</em>

<u>Solution-</u>

When two lines are crossed by another line (transversal), the angles in matching corners are called Corresponding Angles.

When the line are parallel the corresponding angles are equal in measurement.

As m and n are parallel line, so

\Rightarrow 8x+50=130

\Rightarrow 8x=130-50

\Rightarrow 8x=80

\Rightarrow x=10

3 0
3 years ago
Read 2 more answers
Put the steps in correct order to prove that if x is irrational, then 1/x is irrational using contraposition.
SOVA2 [1]

Answer:

The correct order is:

a

c

d

b

Step-by-step explanation:

First, let's write 1/x in a convenient way for us:

a) Substitute 1/x = p/q, to obtain x = 1/(1/x) = 1/(p/q) = q/p.

Now we assume that 1/x is rational (we want to prove that this implies that x will be also rational and because we know that x is irrational assuming that 1/x is rational will lead to an incongruence), then:

c. If 1/x is rational, then 1/x = p/q for some integers p and q with q ≠ 0. Observe that p is not 0 either, because 1/x is not 0.

Now we know that we can write x as a quotient of two integers, we need to imply that, then the next one is:

d) Observe that x is the quotient of two integers with the denominator nonzero.

And that is the definition of rational, then we end with:

b) Hence x is rational.

Which is what we wanted to get.

5 0
2 years ago
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