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lianna [129]
3 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]3 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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Find the amount of each ordinary annuity. interest is compounded annually.
Svetlanka [38]
R=$350, I=0.05, n=15
A = 350 (1+0.05)^15 = 350(1.05)^15 = 350 (2.0789)=727.62 <- Answer
6 0
3 years ago
What is the length of BC? Round to the nearest tenth
Degger [83]

Answer:

9.9

use the special triangle formula or use cosine to find BC

7 0
3 years ago
Help me with this please, thank you
Hoochie [10]

Answer:

2x + x + 90 = 180

3x + 90 = 180

3x = 90

x = 30°

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8 0
3 years ago
Need help with these two question!!??
lawyer [7]

The measure of x in both parts is: 120°

Step-by-step explanation:

Part A:

We can clearly see that the figure in part a has six equal sides. So the given figure is a hexagon.

A hexagon has six equal sides in six equal interior angles.

Sum of interior angles of hexagon is 720°

So,

Measure\ of\ one\ agnle=\frac{Sum\ of\ interior\ angles}{number\ of\ angles}\\=\frac{720}{6}\\=120

Part B:

The figure is a Dodecagon with 12 sides.

The Dodecagon has 12 equal sides and angles.

The sum of internal angles of Dodecagon is 1440°

So,

Measure\ of\ one\ angle=\frac{Sum\ of\ angles}{Number\ of\ angles}\\=\frac{1440}{12}\\=120

The measure of x in both parts is: 120°

Keywords: Polygons, Hexagon

Learn more about polygons at:

  • brainly.com/question/8358304
  • brainly.com/question/8540796

#LearnwithBrainly

6 0
3 years ago
Evaluate the distance between each pair of integers
Charra [1.4K]

Answer: number one is 24

Step-by-step explanation: all you have to do is just minus i’m pretty sure and for the negative ones add the negative number and the other number together. If they are both negative then just act like the negative sign is not there and add the sign back after you find the distance

8 0
3 years ago
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