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2 years ago

Given f(x)=2x^2-3x+1, determine the value of 3f(-2x)

Mathematics

1 answer:

krok68 [10]2 years ago

4 0

Answer:

Step-by-step explanation:

3f(-2x)= 3[2(-2x)^2-3(-2x)+1]

=3[2(4x^2)+6x+1]

=3[8x^2+6x+1]

=24x^2+18x+3

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The value of which of these expressions is closest to e?

Anna [14]

Answer:

Using a calculator, we can check that e=2.718281828.

Step-by-step explanation:

Lets evaluate each one of our expression the check which one is closest to e:

(1+ \frac{1}{31} )^{31}=2.675686306

(1+ \frac{1}{32})^{32}=2.676990129

(1+ \frac{1}{34} )^{34}=2.679355428

(1+ \frac{1}{33} )^{33}=2.678207651

We can conclude that the value of (1 +1/34) to the power of 34 is the closest to the value of e.

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2 years ago

Read 2 more answers

tickets for a lower level seats sell for $35 each and tickets for an upper level seats sell for $25 each. the theater sells 350

Liono4ka [1.6K]

The work and answer is shown in the image below. Just set the variables and solve.

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2 years ago

Translate the following verbal expression into an algebraic expression.

poizon [28]

Answer:

3 * (x + 7)

Step-by-step explanation:

Mark number as x

Then the sum of a number and seven is x + 7

Three times x + 7 can be written as

3 * (x + 7)

Parentheses mean that we first add x and 7 and then multiply their sum by 3

Alternatively you can write it as 3x + 21, since

3 * (x + 7) = 3 * x + 3 * 7 = 3x + 21

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2 years ago

How do I solve u=vw+z, for v.

AVprozaik [17]

U = vw + z

vw + z = u |subtract z from both sides

vw = u - z |divide both sides by w

v = (u - z)/w

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2 years ago

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The number of defective units in a production run of 850 circuit boards are normally distributed with 21 defective units and 3 d

Katen [24]

Answer:

82%

Step-by-step explanation:

We let the random variable X denote the number of defective units in the production run. Therefore, X is normally distributed with a mean of 21 defective units and a standard deviation of 3 defective units.

We are required to find the probability, P(17 < X < 25), that the number of defective units in the production run is between 17 and 25.

This can be carried out easily in stat-crunch;

In stat crunch, click Stat then Calculators and select Normal

In the pop-up window that appears click Between

Input the value of the mean as 21 and that of the standard deviation as 3

Then input the values 17 and 25

click compute

Stat-Crunch returns a probability of approximately 82%

Find the attachment below.

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2 years ago