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3 years ago

HELP WITH THIS QUESTION(I know the answer I just need to double check)

Mathematics

1 answer:

viktelen [127]3 years ago

6 0

Answer:

-5, -3, -1 , 1 , 3

Step-by-step explanation:

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The sum of Alan’s age and Bob’s age is 40.

Nutka1998 [239]

Carl is 2 yrs older than bob. Because Alan+Carl is 2 more than Alan+bob
So bob=16 and Carl is 18
16+18=34
And Alan is 24

8 0

3 years ago

9.50 One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by his or her students on a

EleoNora [17]

Answer:

Step-by-step explanation:

Given that a professor sets a standard examination at the end of each semester for all sections of a course. The variance of the scores on this test is typically very close to 300.

$H_0: s^2 = 300\\H_a: s^2 \neq 300$

(Two tailed test for variance )

Sample variance =480

We can use chi square test for testing of hypothesis

Test statistic = $\frac{(n-1)s^2}{\sigma^2} \\=62.4$

p value = 0.0100

Since p <0.05 our significance level, we reject H0.

The sample variance cannot be claimed as equal to 300.

5 0

3 years ago

Ryan took out a 66 month loan to pay for a 28500 car.if he paid 33829.50,in total at the end of the loan,find the interest rate

professor190 [17]

9514 1404 393

Answer:

3.4%

Step-by-step explanation:

The total amount due is ...

A = P(1 +rt/12) . . . . . principal P, annual rate r, t months

33829.50 = 28500(1 +66/12r)

1.187 = 1 +5.5r . . . . . divide by 28500, simplify

0.185/5.5 = r = 0.034 = 3.4%

The interest rate on the loan is 3.4%.

3 0

3 years ago

For 33 hrs of work you are paid 252.45 how much would you receive for 36 hours

poizon [28]

For 33 Hours, It is = $252.45

Now, for 1 Hour, It is 252.45 / 33 = 7.65

Now, For 36 hours, It would be: 7.65 * 36 = 275.4

In short, Your Answer would be: $275.4

Hope this helps!

3 0

4 years ago

In a survey of 9444 people in the U.S., 47% say that they own a bicycle.

Westkost [7]

Answer:

about +–1%; between 46.5% and 47.5%

Step-by-step explanation:

6 0

3 years ago