Simplify the following expression: 3x^3-2x^2+4-(3x^2+5x^2-2)

Mathematics

1 answer:

Zanzabum3 years ago

7 0

Answer:

3x^3-10x^2+6

Step-by-step explanation:

trust me :)

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Inequality for x that is show on this line

s2008m [1.1K]

Answer:

x<5

5 is not included because the circle is not filled.

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3 years ago

All together, 3 people have 120 coins. mark has 3 times as many as joel, and joel has 1/2 as many as sandra. how many coins does

oksano4ka [1.4K]

Joel = j, Mark = m, Sandra = s
j + m + s = 120
m = 3j
j = 1/2 s --> s = 2j
plug in (substitute) each letter to make it in terms of only j: j + m + s = 120
j + 3j + 2j = 120
6j = 120
6j/6 = 120/6
j = 20
now plug in for the j & s equation:
s = 2j = 2(20) = 40
Therefore Sandra has 40 coins!

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3 years ago

What is the equation for a line with no slope and passes through the point 5,7

AlekseyPX

Y=7
It's a horizontal line at height 7

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Pls help with qn 13!!!!

balandron [24]

4243.6-4000=243.6/4000= 0.06

Interest rate 0.06%

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3 years ago

2. A circular patio has a diameter of 18 feet. How

lisabon 2012 [21]

Answer: So to cover the patio it would take 255 whole tiles. 254.469 if you want to be exact.

Step-by-step explanation:

When finding flooring needed we are finding for area. We know the formula for finding the area of a circle is A= $\pi r^{2}$ so we plug in our known variables...

we know r because radius is half of diameter and diameter was given in problem. So half of 18 is 9.

r=9

A= $\pi 9^{2}$

A= $\pi$ 81

A=254.469

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3 years ago