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SpyIntel [72]
3 years ago
13

Please help someone please comment

Mathematics
1 answer:
dimaraw [331]3 years ago
6 0
#3 the answer is 4.
The reasoning for this is because x=-1 so if it is applied where x is at you have to subtract instead of multiplying in this equation. So 2xsquared is 2-1 which is 1. Same thing for 6x (6-1) which is 5. So the problem would end up being 1-5 which equals 4.
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2x-3/x devided by 7/x^2
Sergio039 [100]

Answer:

\frac{2x^2-3x}{7}

Step-by-step explanation:

\frac{2x-3}{x} ÷  \frac{7}{x^2}

=> \frac{2x-3}{x} × \frac{x^2}{7}

=> \frac{2x-3}{7} × \frac{x^2}{x}

=>\frac{x(2x-3)}{7}

=> \frac{2x^2-3x}{7}

4 0
3 years ago
PLEASE HELP!!!!!!!!!!
Alisiya [41]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Last month Maria hiked a total of 90 miles on two trails: a 5-mile mountain trail and a 10-mile canal trail. Let x represent the
ivolga24 [154]

Answer:

5x+10y=90

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please Helpp! The picture posted is the question I have . TIA
OleMash [197]

The equation for volume of a sphere is:

Volume = 4/3 * PI * r^3

r is the radius = 1 inch

Volume is given as 4 cubic inches per second increase.

Given: dv/dt = 4 cubic inches per second.

Need to find dr/dt

Formula for volume of a sphere is: V = 4/3 * π * r^3

so now we have:

4 in^3 = 4 * π *1^2

Divide both sides by 4 * π *1^2

4 in^3 / 4π = 1/π inch per second.

The answer is 1/π inch per second ( exact answer)

or as a decimal: 0.3183 ( round as needed).

4 0
3 years ago
mike is a parking meter attendant. whenever he approaches a parked car at a meter, there is a 29% chances that the meter has exp
nydimaria [60]
Well. If you get 29% of 5 cars that is 145%. This was a little confusing but I am defiantly sure it is correct. I like to use simpler numbers to see if I am doing the work right. So I said if he has a 50 % likely hood to find a car that was expired and had 1 car. It would be 50 percent. Now if he had 2nt got it the first time it would be a 100 % chance to find the car expired . Hope I didn’t co fuse you more
8 0
3 years ago
Read 2 more answers
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