Multiply.2 1/2 x 1 1/4 Write your answer as a mixed number in simplest form.

Choose the definition for the function. Please help me!!!

Zina [86]

Answer:

The answer is B

Step-by-step explanation:

1)

These are in Y = MX + B form

The first line has a positive slope, so the coefficient "M" is positive.

The second line has a negative slope, so the coefficient "M" is negative.

2)

The first line has a filled in dot at Y = 2.

Since it's to the left (less than X direction)...

X <= 0

The second has an empty circle at Y = 4.

Since the line goes to the right....

0 < X

3)

Also, the "+2" and the "+4" in the equation as the "+ B" indicates where each line will cross the Y axis.

From these things, we can infer that B is the correct answer.

8 0

3 years ago

What is the sum of the 14th square number and the 2nd cube number?

tamaranim1 [39]

Answer:

204

Step-by-step explanation:

Square of 14 = 14 × 14 = 196

Cube of 2 = 2 × 2 × 2 = 8

So sum of square of 14 & cube of 2= 196 + 8 = 204

7 0

4 years ago

Read 2 more answers

A dishwasher is priced at $475. There are two options offered to reduce the price: either a 15% discount off the price or a reba

Andrej [43]

Answer: The $75 rebate.

Step-by-step explanation: When you have a question that deals in percentages, you would place a decimal point in the second point back--- Or rather, it would be 1.00 at 100% and above, and .05 for 5%. You would be getting $71.25 discount with the 15%, while you would be getting $3.75 more with the $75 rebate.

6 0

3 years ago

Indicate which property is illustrated in step 1

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

communicative because you moved the three to the other side

6 0

3 years ago

A survey reports that 67% of college students prefer to drink more coffee during the exams week. If we randomly select 80 colleg

Akimi4 [234]

Answer:

The probability that at most 50 say that they drink coffee during exam week is 0.166.

Step-by-step explanation:

The random variable X can be defined as the number of college students who prefer to drink more coffee during the exams week.

The probability of the random variable X is p = 0.67.

A random sample of n = 80 college students are selected.

The response of every students is independent of the others.

The random variable X follows a Binomial distribution with parameters n = 80 and p = 0.67.

But the sample selected is too large and the probability of success is close to 0.50.

So a Normal approximation to binomial can be applied to approximate the distribution of X if the following conditions are satisfied:

np ≥ 10
n(1 - p) ≥ 10

Check the conditions as follows:

$np=80\times 0.67=53.6>10\\n(1-p)=80\times (1-0.67)=26.4>10$

Thus, a Normal approximation to binomial can be applied.

$X\sim N(np, np(1-p))$

The mean of the distribution of X is:

$\mu=np=80\times 0.67=53.6$

The standard deviation of the distribution of X is:

$\sigma=\sqrt{np(1-p)}=\sqrt{80\times 0.67\times (1-0.67)}=4.206$

A Normal distribution is a continuous distribution. So, the probability at a point cannot be computed for the Normal distribution. To compute the probability at a point we need to apply the continuity correction.

Compute the probability that at most 50 say that they drink coffee during exam week as follows:

Apply continuity correction:

$P(X\leq 50)=P(X$

$=P(X$

*Use a z-table for the probability.

Thus, the probability that at most 50 say that they drink coffee during exam week is 0.166.

5 0

3 years ago