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Allisa [31]
3 years ago
15

The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. The teacher draw

s a random sample from the following groups All teachers in the school All boys in each grade All students in the speech club All students in each grade Which group best represents the population she should take a random sample from to get the best results for her suney? All teachers All boys in each grade All students in the speech club All students in each grade
Mathematics
1 answer:
Georgia [21]3 years ago
3 0
The language art teacher wants to know the opinion of the ENTIRE school, so it would be fair if the teacher takes a sample from the ENTIRE school population. She can use the stratified sampling method where she can take a proportionate sample from each grade. 

Correct answer: All students in each grade
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Find the factors of 9q²-45pq+8q-40p
Elina [12.6K]

Answer:

(x−5y)(9x+8)

Step-by-step explanation:

9x^2−45yx+8x−40y

Do the grouping 9x^2−45yx+8x−40y=(9x^2−45yx)+(8x−40y), and factor out 9x in the first and 8 in the second group.

9x(x−5y)+8(x−5y)

Factor out common term x−5y by using distributive property.

(x−5y)(9x+8)

5 0
3 years ago
A self-serve car wash charges $5.81 to use its facilities, plus an additional $0.77 for each minute the customer is at the self-
Zigmanuir [339]

Answer:

C. $11.20.

Step-by-step explanation: Just times the minutes by the $0.77 cents then plus the $5.81 to the answer getting your final answer.

3 0
3 years ago
A navigator plots the course a plane is currently traveling. The plane is 300 miles from its destination. If it continues on its
inna [77]
We have to use the rule of cosx° to solve this problem. Attached is a diagram of the navigator's course for the plane. It is similar to the shape of a triangle. We know the plane is 300 miles from its destination, so that will be one of the sides. On the current course, it is 325 miles from its destination, so that will be another one of the sides. The last side is 125 because that is the distance between the destination and the anticipated arrival. Cosx° is what we are looking for. 

To find how many degrees off course the plane is, we must use the rules of Cosx°, which is shown in the attached image. 

The plane is approximately 23° off course. 

3 0
3 years ago
I WILL GIVE BRAINLIEST!!!
solmaris [256]

Answer:

45min

Step-by-step explanation:

just mutiply

8 0
3 years ago
Read 2 more answers
Please someone can help me with question #9. Thanks
gavmur [86]
Given:
3 red dresses
2 white dresses
1 blue dresses

Probability that she will wear the blue dress at her party.

3 + 2 + 1 = 6 total number of outcomes.

There is only 1 blue dress so the number of ways it can happen is only 1.

probability of an event happening = number of ways it can happen / total number of outcomes

Probability = 1/6 or 0.166 or 16.6%
6 0
3 years ago
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