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Angelina_Jolie [31]
3 years ago
10

Evaluate f(2) for the function f(x) = 3x² + 2x - 5.

Mathematics
1 answer:
Softa [21]3 years ago
6 0

Answer:

f(2)= 11

Step-by-step explanation:

you have to substitute 2 for every x you see:

                       f(x) = 3x² + 2x - 5

                       f(2)= 3(2)^2+2(2)-5

                       f(2)= 11

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What is an equation of the line, in point slope for, that passes though the given point and has the given slope? point:(7,3);slo
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Answer:

The equation of this line is y - 3 = 4/7(x - 7)

Step-by-step explanation:

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y - y1 = m(x - x1)

Now put the slope in for m and the two coordinates in for (x1, y1).

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7 0
3 years ago
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Find the product of the given complex number and its conjugate.<br> 1/5+4i
nasty-shy [4]

Answer:

-15.96

Step-by-step explanation:

A conjugate is a binomial with the sign inside changed. So the conjugate of (1/5 + 4i) is (1/5 - 4i)

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Multiply the outer members, the 1/5 and the 4i to get - 60i. This is the "O."

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The positive 60i and the negative 60i cancel each other out.

The i squared changes into - 1. This makes the 16 negative.

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4 0
3 years ago
Laura got a discount of 100 dollars on her purchase of a 5775 bed.What is the percent of decrease?
matrenka [14]
Remember that percent means parts out of 100
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discount is the decrease
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we know that

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