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4 years ago

Find f(-3) if f(x) = x^2 06 0-9 09 0-6

Mathematics

1 answer:

Artemon [7]4 years ago

8 0

The answer is -9

You fill in -3 to x
(-3^2)
-3*3

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Simplify the square root of –75

nadezda [96]

Answer:

5 i √ 3

Step-by-step explanation:

3 0

3 years ago

What is the equation in standard form of a parabola that models the values in the table

shusha [124]

Answer:

Y=4x^2-3x+5

Step-by-step explanation:

For the standard form equation to model the values in the table, each value of x in the table should give the matching the y value when substituted into the equation. We will test each equation:

$Y=-4x^2+3x+5$ for (-1,12)

$Y=-4(-1)^2+3(-1)+5=-4(1)+-3+5=-4+-3+5=-2\\$

This does not give 12 as the answer and is not a solution.

$Y=-4x^2-3x+5$ for (-1,12)

$Y=-4(-1)^2-3(-1)+5=-4(1)+3+5=-4+3+5=4\\$

This does not give 12 as the answer and is not a solution.

$Y=3x^2-4x+5$ for (-1,12)

$Y=3(-1)^2-4(-1)+5=3(1)+4+5=3+4+5=12\\$

This does give 12 as the answer and is a possible solution.

We now try (2,15).

$Y=3(2)^2-4(2)+5=3(4)-8+5=12-8+5=9\\$

This does not give 15 as the answer and is not a possible solution.

$Y=4x^2-3x+5$ for (-1,12)

$Y=4(-1)^2-3(-1)+5=4(1)+3+5=4+3+5=12\\$

This does not give 12 as the answer and is not a solution.

We now try (2,15).

$Y=4(2)^2-3(2)+5=4(4)-6+5=16-6+5=15\\$

This does give 15 as the answer and is a solution.

This is the standard form of the equation.

5 0

3 years ago

Alliance Cannery has two assembly lines. One produces 24 cans of fruit per minute; the other produces 64 cans of vegetables per

sergey [27]

Let
x----------------------- > number of cans of fruit-----------------> 24 per minute
y----------------------- > number of cans of vegetables-------> 64 per minute
z----------------------- > number of cans of food per minute
t----------------------- > time in minutes

z=(x+y)*t
z=(24+64)*t--------------- > 88t
z=88t---------------------------------- > this is the equation required
we know that z=384
then
384=88t------------- > t=4.36 minutes

5 0

3 years ago

Read 2 more answers

Price: $8.62 per 3 lb of strawberry

Dominik [7]

9514 1404 393

Answer:

$12.07

Step-by-step explanation:

The cost is proportional to the weight, so we have ...

dollars/pounds = c/4.2 = 8.62/3

Multiplying by 4.2 gives ...

c = 4.2×8.62/3 = 12.068

The cost of 4.2 pounds of strawberries is $12.07.

4 0

3 years ago

What is the square root of -1?

Dennis_Churaev [7]

The square root of 1 is 1

3 0

3 years ago

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