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kaheart [24]
1 year ago
13

I need help please yall use orders of operation and simplify ​

Mathematics
1 answer:
UNO [17]1 year ago
4 0

Answer: \large\boxed{12x^3-30x+3=0}

Step-by-step explanation:

Solve:\\\ 6(2x^2-5)x=-3\\\\Use\ distributive\ property\ first\\\\(12x^2-30)x=-3\\\\Now\ multiply\ the\ terms\ in\ ()\ by\ 'x'\\\\12x^3-30x=-3\\\\\large\boxed{12x^3-30x+3=0}

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Go to where 30 degrees is on the unit circle and find the y-coordinate. That is sin30.
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What are some real-world scenarios for the Pythagorean theorem?
Alecsey [184]

Answer:

There are loads, but for example you can find the diagonal from a lamppost the the end of its shadow if you know the height of the post and the length of the shadow.

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3 years ago
Reduce fraction 18/20
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It would be 9/10 or 0.9!

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Suppose when a baseball player gets a hit, a single is twice as likely as a double which is twice as likely as a triple which is
rjkz [21]

Answer:

The PMF of B is given by

P(B=0) = 0.7

P(B=1) = 0.16

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P(B=4) = 0.02

Step-by-step explanation:

Let x denote P(B=1), we know that

P(B=0) = 1-0.3 = 0.7

P(B=1) = x

P(B=2) = x/2

P(B=3) = x/4

P(B=4) = x/8

Also, the probabilities should sum 1, thus

0.7+x+x/2+x/4+x/8 = 1

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As a result, the PMF of B is given by

P(B=0) = 0.7

P(B=1) = 0.16

P(B=2) = 0.08

P(B=3) = 0.04

P(B=4) = 0.02

5 0
3 years ago
A plane flies with an average velocity of -98.5 m/s for 45.0s what was its displacement
svet-max [94.6K]

Answer:

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Step-by-step explanation:

You can use the formula for average velocity, fill in the given values, and solve for displacement.

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Multiply by time:

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_____

Keeping units with the numbers serves as a check on the math. (m/s)·s = m. The units work the same way variables do: they can be multiplied and divided, raised to a power, canceled. If the units of the problem don't work out right, you're probably doing it wrong. (Note, you can only add and subtract numbers that have the same (identical) units--the same rule as for combining like terms.)

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3 years ago
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