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Irina18 [472]
3 years ago
8

How do you do 18+2x=-8x+6(7+3x)

Mathematics
1 answer:
pochemuha3 years ago
3 0
If this is a simultaneous equation then:
you should simplify it to get 18+2x=-8x+42+18x
Then simplify again and you get: 18+2x=10x+42
Next if you minus 2x from both sides you get: 18=8x+42
After that you minus 42 from both sides to get: -24=8x
Finally, divide both sides by 8 and you get: -3=x
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Select the correct answer from the drop-down menu. Find the product. The product of 2/5a2x and -1/5x2a is
valentinak56 [21]

Answer: -\frac{2}{25}a^{3}x^{3}

Step-by-step explanation:

1. The problem asked for the product of \frac{2}{5}a^{2}x and -\frac{1}{5}x^{2}a, therefore, you must mutliply them, as you can see below:

2. According the exponents propertiess, when you have a multiplication of two powers that has the equal base, you must add the exponents. THerefore, you have the following result:

 (\frac{2}{5}a^{2}x)(-\frac{1}{5}x^{2}a)=-\frac{2}{25}a^{3}x^{3}

3 0
2 years ago
Read 2 more answers
Can someone help me with this problem?
kompoz [17]
Answer: 5:6

Explanation:

The 2 polygons are similar

So 25/30 = 25.5/30.6 = 5/6 or 5:6
8 0
2 years ago
The volume of a cone is 3rx? cubic units and its height is x units. Which expression represents the radius of the cone's base, i
Marianna [84]

Answer:

It is given that the volume of a cone = 3\pi x^3 cubic units

Volume of cone with radius 'r' and height 'h' = \frac{1}{3}\pi r^2h

Equating the given volumes, we get

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It is given that the height is 'x' units.

Therefore, r^2x=9x^3

r^2=9x^2

Therefore, r=3 x

So, the expression '3 x' represents the radius of the cone's base in units.

3 0
2 years ago
For the following right triangle, find the side length x
Juli2301 [7.4K]

Answer:

37

Step-by-step explanation:

35^2+12^2=1369

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3 years ago
Write a proof that shows how 45 and 4.5 have a factor of 10. and are similar.
Sidana [21]

Answer: 4.5 x 10 = 45

0.45  x 10 = 4.5

5 0
2 years ago
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