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3 years ago

Solve for x in the equation 3x2-18+5=47

Mathematics

1 answer:

Airida [17]3 years ago

7 0

3x^2-18+5=47
3x^2 = 60
x^2 = 20
x = 4.472 , x = - 4.472

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Simplify: 0.9(2b-1)-0.5b+1

Nutka1998 [239]

Answer:

Step-by-step explanation:

0.9*2b = 1.8b

0.9*-1 = -0.9

So far we have 1.8b-0.9. It can't be simplified further.

Then, we add the 2nd part, -0.5b+1.

We have:

1.8b-0.9-0.5b+1. Next we combine like terms.

1.8b-0.5b = 1.3b.

-0.9+1 = 0.1

Then we put it together.

1.3b+0.1 is our answer.

Hope this helped! Have a nice day :D

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3 years ago

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Determine the area of a square with side length 2√7 in.

Ainat [17]

Answer:

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Step-by-step explanation:

The length of all four sides of square is equal.

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Area = (Length) × (Length)

Thus, the Area of square whose length is 2√7 is:

Area = 2√7 × 2√7

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3 years ago

What is the solution for p in the equation?

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2 years ago

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3 years ago

One taxi leaves at a stop at every 6 minutes a second taxi leaves the stop every 9 minutes if they leave at 4.00 p.m at what tim

qaws [65]

Both taxis will leave together at 04:18 PM after 04:00 PM

Step-by-step explanation:

We have to use the LCM to find the time on which both will leave at the same time,

Given

Departure interval for first taxi = 6 minutes

Departure interval for second taxi = 9 minutes

We have to find the LCM of 9 and 6

So,

Factors of 6: 6,12,<u>18</u>,24,30,36,42,48,54,60

Factors of 9: 9,<u>18</u>,27,36,45,54,63,72

The LCM is 18.

So,

Both taxis will leave together at 04:18 PM after 04:00 PM

Keywords: LCM, time

Learn more about LCM at:

#LearnwithBrainly

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3 years ago