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Aleksandr [31]
3 years ago
5

The number of books read by a mathematician 2 years after he turned 25 is given by the polynomial

Mathematics
1 answer:
stich3 [128]3 years ago
5 0

Evaluating a function means to plug the required value, substituting every x occurrence with that value.

So, you have

f(x)=3x^2+80x \implies f(2) = 3\cdot 2^2+80\cdot 2 = 3\cdot 4 + 160 = 12+160=172

You might be interested in
10 (w-4)=4 (w+4)+4w​
eimsori [14]

Answer:

w = 28

Step-by-step explanation:

10(w-4) = 4(w+4)+4w

1. distribute

10w - 40 = 4w +16 +4w

2. collect like terms

10w -4w - 4w = 40 +16

3. solve

2w = 56

w = 28

:D

8 0
3 years ago
-5/4 divided by 6/9=? whats the answer?
poizon [28]

Answer:

Step-by-step explanation:

!!

5 0
3 years ago
You and a friend are playing a game of chance. Every time you roll a 1 or 2 you are successful, and your friend will pay you $1.
Viktor [21]

Considering the mean of a discrete distribution, you are expected to earn $0.13 by the end of the game.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

Since 71% of your rolls are successful and 29% of your rolls are unsuccessful, the distribution of your earnings is:

  • P(X = 1) = 0.71.
  • P(X = -2) = 0.29

Hence the expected value is:

E(X) = 1 x 0.71 - 2 x 0.29 = 0.71 - 0.58 = 0.13

More can be learned about the mean of a discrete distribution at brainly.com/question/24245882

#SPJ1

8 0
2 years ago
Please help!!☺️☺️<br> Will mark brainilest!!
mezya [45]

Answer:

C

Step-by-step explanation:

The graph of the absolute value function y = | x | has its vertex at the origin and has the shape V

The graph here is the absolute value translated vertically 3 units down, so

y = | x | - 3 → C

4 0
3 years ago
Read 2 more answers
What is the answer to number 23
attashe74 [19]

The answer is 50/27 or 1 23/27 or approx 1.85185. Here is my work!

Multiply both sides by 10 : 20x + 6x = 50 - x

Collect the like terms: 20x + 6x = 50 - x

Move Variable to Left: 26x + x = 50

Collect like terms: 27x = 50

Divide both sides by 27: 50/27

Hope this helped :))

6 0
3 years ago
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