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ExtremeBDS [4]
2 years ago
8

Problems 7-15 Simplify each expression. 20 points

Mathematics
1 answer:
Nitella [24]2 years ago
7 0

Answer:

7. k^4

8. m^6

9. 18x^4

10. 35u^8v^4

11. 6561

12. x^6 y^24

13. 16a^6 b^11 c^2

14. -8f^5 g^6 h^5

15. 81p^9 t^10

Step-by-step explanation:


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You are an assistant director of the alumni association at a local university. You attend a presentation given by the university
NNADVOKAT [17]

Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

sample size in 2017 = n2 = 200

number of people who went for another degree in 2018 = x1 = 54

number of people who went for another degree in 2017 = x2 = 46

p1 = x1/n1 = 0.25

p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

<h2> p1 -p2 ± z*\sqrt{((1-p1)*p1)/n1 + ((1-p2)*p2/n2}</h2>

0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = <u>0.102</u>

= 0.02 - 0.082 = <u>-0.062</u>

<u>There is 95% confidence that there is a difference that lies between  - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.</u>

<u></u>

<u>There is no significant difference between the two.</u>

5 0
3 years ago
In parallelogram lmno what is the measure of angle m ? <br>20<br>60<br>80<br>100
Stella [2.4K]
It is 80. Opposite angles in a parallelogram are equal.
5 0
3 years ago
Read 2 more answers
a set if cards includes 20 yellow cards, 16 green cards, and 24 blue cards. what is the probability that a blue card is chosen a
devlian [24]

Answer:

2/5

Step-by-step explanation:

Probability is the chance that a certain event occurs out of the total events.

Here, the event of "choosing a blue card". The total events are just "choosing any card".

There are 24 blue cards and 24 + 20 + 16 = 60 cards in total. So, we just take 24 and divide it by 60: \frac{24}{60} . Simplifying, we get:

\frac{24}{60} = \frac{2}{5}

Thus, the answer is 2/5.

Hope this helps!

4 0
3 years ago
Find m<br> A. 38<br> B. 76<br> C. 142<br> D. 71
baherus [9]
I think the answer is a. because all sides are the same.

1 side = 38

side m = probably 38

Hope this helped☺☺
8 0
3 years ago
Read 2 more answers
A student's work to solve an equation is shown.
zvonat [6]

Answer:

the student solved the equation incorrectly because the original equation has one solution

Step-by-step explanation:

1/8(40x + 16) = 9x − 7(2x − 1) − 5

<em>use the distributive property a(b + c) = ab + ac</em>

(1/8)(40x) + (1/8)(16) = 9x + (-7)(2x) + (-7)(-1)

5x +2 = 9x − 14x + 7 − 5       <em>combine like terms</em>

5x + 2 = (9x - 14x) + (7 - 5)

<em>here the student make mistake 9x - 14x = 5x</em>

5x+2=-5x+2    <em>add 5x to both sides and subtract 2 from both sides</em>

5x + 5x + 2 - 2 = -5x + 5x + 2 - 2

10x = 0          <em>divide both sides by 10</em>

10x/10 = 0/10

x = 0

6 0
3 years ago
Read 2 more answers
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