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Sonbull [250]
3 years ago
7

A study will investigate the effectiveness of a new early reading program on

Mathematics
1 answer:
Bas_tet [7]3 years ago
4 0

Answer:

B, C, D

Step-by-step explanation:

The information given about the teachers is limited to the fact they teach preschool.

B and D. If a teacher has more experience teaching, they are probably better at teaching. Even if the subject is not reading, they gain transferable teaching skills with experience.

C. Although both teachers teach preschool, one may have many more years of experience or other qualifications, which will likely help them to teach better in generally.

A. The samples 30 and 40 students in a typical class are enough to show different students' various learning styles and strengths. The sample size is big enough.

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What is the value of x to the nearest tenth?
konstantin123 [22]

Answer:

I'm not 100% sure on this but I think it would be C- 8.1

Step-by-step explanation:

8 0
3 years ago
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Figure A is a scale image of Figure B.<br> whas the value of x?
spayn [35]
X = 30 because the ratio of 27/45 = .6 so 18/.6 is 30
6 0
2 years ago
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Does anybody know this answer ??6x-12 2x=3x 8x-15
romanna [79]
Hello there.! 

<span>Does anybody know this answer ??6x-12 2x=3x 8x-15

</span><span>0.35775</span>
7 0
3 years ago
In the xy-plane, a parabola defined by the equation y=(x-8)^2 intersects the line defined by the equation y=36 at two points, P
mihalych1998 [28]

Answer:

12

Step-by-step explanation:

Alright so we are asked to find the intersection of y=(x-8)^2 and y=36.

So plug second equation into first giving:  36=(x-8)^2.

36=(x-8)^2

Take square root of both sides:

\pm 6=x-8

Add 8 on both sides:

8 \pm 6=x

x=8+6=14 or x=8-6=2

So we have the two intersections (14,36) and (2,36).

We are asked to compute this length.

The distance formula is:

\sqrt{(14-2)^2+(36-36)^2}

\sqrt{14-2)^2+(0)^2

\sqrt{14-2)^2

\sqrt{12^2}

12.

I could have just found the distance from 14 and 2 because the y-coordinates were the same. Oh well. 14-2=12.

7 0
3 years ago
4:3 and 25:45 are equal ratios. True or false ?
gregori [183]
False. When simplified, 25:45 is equal to 5:9. Therefore, the two ratios are not equal
6 0
3 years ago
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