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lianna [129]
4 years ago
10

Find each product. Leave answer in descending order of power. a) 3x(x-4) b) -2x^2(x+3)

Mathematics
1 answer:
raketka [301]4 years ago
5 0
Hey!
so for A, you just distribute the 3x
the answer would be 3x^2 - 12x

For B what you want to do is the same thing but dont forget to distribute the negative as well!
Your answer would be -2x^3 - 3x^2

Hope this helps!

also since you are multiplying, here is a tip. When you multiply and you have 2 x's that are going to be multiplied like x times x, you want to add the exponent!
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Sandra and her friend went to the candy store. Each of the purchased a bag of jelly beans. Sandra's bag weighed 1.25 pounds. Her
Aleks [24]
Sandra did, her bag was .20 pounds heavier than her friend’s.
8 0
3 years ago
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A number, x, is 11 less than 3 times a smaller number, y,. The sum of the numbers is 24. solve for x and y
Ymorist [56]
The numbers: x, y

x=3y-11 \\
x+y=24 \\ \\
\hbox{substitute 3y-11 for x in the second equation:} \\
3y-11+y=24 \\
3y+y=24+11 \\
4y=35 \\
y=\frac{35}{4}=8 \frac{3}{4} \\ \\
x=3 \cdot \frac{35}{4}-11 =\frac{105}{4}-\frac{44}{4}=\frac{61}{4}=15 \frac{1}{4}
8 0
3 years ago
5(x+1)=3x-9 find x (please it’s due today)
Yanka [14]

5(x+1)=3x−9

Step 1: Simplify both sides of the equation.

5(x+1)=3x−9

(5)(x)+(5)(1)=3x+−9(Distribute)

5x+5=3x+−9

5x+5=3x−9

Step 2: Subtract 3x from both sides.

5x+5−3x=3x−9−3x

2x+5=−9

Step 3: Subtract 5 from both sides.

2x+5−5=−9−5

2x=−14

Step 4: Divide both sides by 2.

2x

2

=

−14

2

x=−7

5 0
3 years ago
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The graph of f(x) = (0.5)x is replaced by the graph of g(x) = (0.5)x − k. If g(x) is obtained by shifting f(x) down by 2 units,
zepelin [54]
K is the distance of the vertical translation.
Since you shifted the graph 7 units down, k will be equal to 7
So g(x) = (0.5)x - 7 is f(x) vertically translated 7 units down

If g(x) is obtained by shifting f(x) down by 7 units
meaning that
g(x)=(0.5)~~~~~7 units to the bottom from f(x)-k?

I can't explain but k=-7

it's g(x)=f(x)-(-7)
so the k=7.

f(x)-k=f(g)-7
the original function of f(x) is obtained by shifting f(g) 7 units down, or by -7
so x=7
5 0
4 years ago
Read 2 more answers
PLEASE HELP ME WITH THIS I NEED TO GET IT DONE WITH
stepan [7]

Answer:

Correct answer:  V = 82.5 in³

Step-by-step explanation:

This is a regular five sided prism.

Given:

The base edge  a = 4 in

The radius of the inscribed circle or the height of an isosceles triangle

Ri = h = 2.75 in

Prism height   H = 3 in

The base consists of five isosceles triangles

The area of one triangle is:

A₁ = a · h / 2

The area of the base is:

B = 5 · A₁ = 5 · a · h / 2

B = 5 · 4 · 2.75 / 2 = 27.5 in²

The volume of the prism is:

V = B · H = 27.5 · 3 = 82.5 in³

V = 82.5 in³

God is with you!!!

5 0
3 years ago
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