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JulsSmile [24]
3 years ago
13

Pamela wants to learn more about the career preferences of students in her school. She interviews a number of students from the

advanced science classes. Why is this sample likely to be biased?
A. Advanced science students may not have clear career preferences.

B. The numbers of boys and girls in the advanced science classes are not equal.

C. Advanced science students are not representative of all the students in the
school.

D. It is too early for students to have career preferences while still in school.
Mathematics
1 answer:
Marta_Voda [28]3 years ago
5 0

Answer:

C.

Step-by-step explanation:

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What is the similarity ratio of PQR to VXM?
Nastasia [14]

Answer:

3

Step-by-step explanation:

The correct answer is:

3

Explanation

review

△WXY~△GEF.

6

3

6

Y

X

W

2

1

2

F

E

G

What is the similarity ratio of △WXY to △GEF?

Simplify your answer and write it as a proper fraction, improper fraction, or whole number.

If two triangles are similar, their similarity ratio is the ratio between a side length in the first triangle and the corresponding side length in the second triangle.

solve

Look at the triangles.

6

3

6

Y

X

W

2

1

2

F

E

G

The similarity ratio of △WXY to △GEF is the ratio between a side length in △WXY and the corresponding side length in △GEF. So, the similarity ratio is  

WX

EG

=

3

1

=3.

4 0
3 years ago
What is the slope of the line that goes through the points (1,-5) and (4,1)?
lesya692 [45]

Answer: m = 2

Step-by-step explanation:

What we know:

  • The slope needs to pass through the points (1, -5) and (4, 1)
  • There are 4 potential slopes given to us- only one is correct
  • We need to find the slope and make sure it is an option

How to solve:

By using the slope equation and the two points given to us, we can calculate the slope.

Process:

  • Set up equation                                                 (y2 - y1) / (x2 - x1)
  • Substitute                                                            (1 +5 ) / (4 - 1)
  • Simplify                                                                6 / 3
  • Simplest form                                                      2/ 1 =

Slope =                                                                          2

Solution: m = 2

4 0
2 years ago
Cost of a pen o.95 mark up 60
Alika [10]
I think the answer is 5700
8 0
3 years ago
If x2 = 30, what is the value of x?<br> A. ±60 B. ±15 C. ±square root of 30 D.±square root of 15
anygoal [31]

Answer:

  C.  ±square root of 30

Step-by-step explanation:

Apply the square root function to both sides of the equation:

  \sqrt{x^2}=\sqrt{30}\\\\|x|=\sqrt{30}\\\\x=\pm\sqrt{30}

_____

The absolute value equation has two solutions. They match choice C.

6 0
3 years ago
On a sunny day, a tree casts a shadow that is 146 feet long. At the same time, a person who is 5.6
iVinArrow [24]
Let X = tree height.

X/146 = 5.6/11.2
3 0
2 years ago
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