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3 years ago

Nicholas wrote the steps below to

Mathematics

1 answer:

Inessa05 [86]3 years ago

7 0

Answer:

He does not divide the numerator and the denominator by the same number. Nicholas divides 20 by 5 and 30 by 6. He ought to have divided 30 by 5 as well and then simplified.

P.S. Nicholas should have just divided both 20 and 30 by 10 to simplify in one step

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Please help! Fast<br> −6(2x−4)≤30.

Rudiy27

Answer:

x> -1/2

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

Motion and rate of change derivatives. Attached is the question and where I am stuck, I would really appreciate the help :)

barxatty [35]

Answer:

A. 3 < t < 9

Step-by-step explanation:

When the particle is moving to the right, the velocity is positive.

To find the velocity, take the derivative of s(t) with respect to t.

s(t) = -t³/3 + 13t²/2 − 30t

s'(t) = -t² + 13t − 30

Find when the velocity is 0.

0 = -t² + 13t − 30

0 = t² − 13t + 30

0 = (t − 3) (t − 10)

t = 3, 10

Check the sign of s'(t) in each interval.

0 < t < 3, s'(t) < 0

3 < t < 9, s'(t) > 0

The particle moves to the right when 3 < t < 9.

4 0

3 years ago

Suppose a test has six multiple-choice questions with four options and eight true/false questions. If a person responds to all q

vova2212 [387]

Answer:

1,360

Step-by-step explanation:

Ok, so for the first 6 questions, if each one can be answered 4 different times, that would mean that it would be 6 to the 4th power (or 6 x 6 x 6 x 6)

That would be 1296.

Then, we have the other 8 questions, that can be answered 2 different ways. That would be represented as 8 to the second power (or 8 x 8)

That would be 64.

Now, we have to add the two numbers together to get the total. 1296+64 = 1,360

That's how you get the answer! I hope this is correct!

6 0

3 years ago

Help please <br> answer choices <br> A- Line A<br> B- Line B<br> C- Line C<br> D- Line D

valkas [14]

I am pretty sure it is D

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3 years ago

Let U = {1, 2, 3, 4, 5, 6, 7, 8}, A =

mr_godi [17]

The equivalent set will be <u>A U B = {1, 2, 4, 5, 6, 8}</u>

<h3>Set theory</h3>

Given the following sets

U = {1, 2, 3, 4, 5, 6, 7, 8},

A ={2, 4, 6},

B = {1, 2, 5, 8},C = {1, 3, 7}

Required sets

A U B

Since union means that we are to write out all the values in the set A and B, hence the equivalent set will be;

A U B = {1, 2, 4, 5, 6, 8}

Learn more on union of sets here: brainly.com/question/2166579

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1 year ago