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2 years ago

F(x) = x - 6 and g(x) = -2x + 4 what is f(x) • g(x)

Mathematics

1 answer:

Kobotan [32]2 years ago

5 0

Answer: -2x^2+16x-24 ==> Option 3

Step-by-step explanation:

f(x) = x - 6 and g(x) = -2x + 4

f(x) • g(x)=(x-6)*(-2x+4)=

-2x^2+4x-(-12x)-24=

-2x^2+4x+12x-24= -2x^2+16x-24 ==> Option 3

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Please help i have 2 questions thank you very much.

Rudik [331]

Hello!

Question 1
We first have to convert everything to yards since the concrete is charged by the cubic yards

15 feet = 5 yards
15 feet = 5 yards
3 inches = 0.08333

Multiply these to find the volume

5 * 5 * 0.08333 = 2.08325

Multiply this by the cost

2.08325 * 46 = 95.83

The answer is C) $95.83
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Question 2

You have to find the volume of the first pyramid

The equation we use is $V = \frac{lwh}{3}$

V is volume
l is length
w is width
h is height

Put in the values we know

$V = \frac{16 * 16 * 28}{3}$

Multiply

$V = \frac{7168}{3}$

Divide

V = 2389.3333

Now we use this to find the side length of the second pyramid

$2389.333 = \frac{lw * 112}{3}$

Multiply both sides by 3

<span>7167.999 = lw * 112
</span>
Divide both sides by 112

63.9999 = lw

Since it is a square pyramid we know that sides are equal

63.999 = l^2

Take the square root of both sides

8 = l

The answer is B) 8in

Hope this helps!

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3 years ago

What’s the answer to the question

hammer [34]

A maybe? I don’t know honestly

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3 years ago

Using six random samples, the average number of catfish in the samples was 5.7. If the total population of fish in the pond is 2

lutik1710 [3]

Answer:10

Step-by-step explanation:

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3 years ago

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What is the value of (f-g)(7)?<br>f(x)=2+x;g(x)=x^2+5<br>(f-g)(7)=[1]

Sav [38]

Answer:

Alright so on this type of problem you just perform the operation they ask for, which in this case is subtraction.

Your first step will be to set up the problem:

f(x) - g(x)

Next you will substitute in your values:

(2x + 1) - (x2 - 7)

The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:

2x + 1 - x2 + 7

Then combine your like terms:

2x - x2 + 8

Lastly put your expression in standard form (highest exponent to lowest)

-x2 + 2x + 8

Hope this helped!

Step-by-step explanation:

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3 years ago

Write the equation of the circle with center (−3, −2) and (4, 5) a point on the circle.

vivado [14]

Http://www.personal.kent.edu/~bosikiew/Algebra-handouts/circles.pdf

I found this is may help but I don't know for sure.

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3 years ago

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