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kipiarov [429]
2 years ago
12

Let f(x) = 2x^2 - 4x + 1 Find the values of f(1), f(0), f(2), f(-2), f(a)

Mathematics
1 answer:
Nataly [62]2 years ago
5 0

Answers:

f(1) = -1

f(0) = 1

f(2) = 1

f(-2) = 17

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Kamila [148]

Answer:

It a choose so the answer is D

3 0
3 years ago
Jake earned 30 points out of a total of 43 on his most recent math test. on his social studies test, jake scored 85 out of a pos
djverab [1.8K]

Answer: See explanation

Step-by-step explanation:

Your question isn't really clear but let me help.

For Maths test,

Point earned = 30

Total point = 43

Percentage = 30/43 × 100 = 69.77%

Social studies test

Point earned = 85.

Total point = 124

Percentage = 85/124 × 100 = 68.55%

From the above, we can see that Jake scored a higher percentage in the Maths test.

3 0
3 years ago
Find the number of pens
Semenov [28]
There are 44 pens in all
5 0
3 years ago
Step 1: A poll of 1500 college students were asked whether or not they had used the Internet to find a place to live sometime wi
trapecia [35]

Answer:

n = 1500

Step-by-step explanation:

The sample size is the number of students  that were asked

n = 1500

5 0
3 years ago
Use the distance formula d = rt to find the unknown value d = 405 mi t = 7.5 h
DochEvi [55]

Answer:

r = 54 miles per hour

Step-by-step explanation:

Since we have been given the values for two of the unknowns, we can substitute them into the equation to find the third.

d = 405

t = 7.5

d = rt

405 = r (7.5)

405=7.5r

Now to find r, we need to get it by itself on one side so we have r = ...

We can do this by dividing 7.5 from both sides of the equation as this will cancel out the 7.5, leaving us with the r value, and everything you do to one side of an equation must also be done to the other side.

405/7.5=7.5r/7.5

54=r

The unknown value 'r' = 54

Since 'r' stands for 'rate', the units given must be appropriate for speed. As the distance was given in miles, and the time in hours, the unit for 'r' must be miles/hour. Therefore r=54miles/hour.

Hope this helped!

4 0
3 years ago
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