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Illusion [34]
3 years ago
8

Please help!!!!!!!!!!!

Mathematics
1 answer:
rjkz [21]3 years ago
8 0

Answer:

95°

Step-by-step explanation:

[character limit thing]

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2×-20/3 =2x help me please ​
Llana [10]

Answer:

x = - 5

Step-by-step explanation:

Given

\frac{2x-20}{3} = 2x ( multiply both sides by 3 to clear the fraction )

2x - 20 = 6x ( subtract 2x from both sides )

- 20 = 4x ( divide both sides by 4 )

- 5 = x , that is x = - 5

4 0
3 years ago
One researcher wishes to estimate the mean number of hours that high school students spend watching tv on a weekday. a margin of
PtichkaEL [24]
Margin of error, e = Z*SD/Sqrt (N), where N = Sample population

Assuming a 95% confidence interval and substituting all the values;
At 95% confidence, Z = 1.96

Therefore,
0.23 = 1.96*1.9/Sqrt (N)

Sqrt (N) = 1.96*1.9/0.23

N = (1.96*1.9/0.23)^2 = 262.16 ≈ 263

Minimum sample size required is 263 students.

3 0
3 years ago
Read 2 more answers
Please help me out!!!!!
Gnoma [55]
Valid because 3 x 3 is 9 :))
3 0
2 years ago
I believe the answer is C. however, I'm not 100% sure.
Brut [27]

The answer would be C. You’re correct! Because there are 3 blue marbles @ $1 each that amounts to a possible $3 gain for Mark. Evan has the chance to get $4. Cayla also can make $3 like Mark.

7 0
2 years ago
BRAINLIEST!!!<br> What is the scale factor of this dilation?<br> ANSWERS PROVIDED IN SCND IMAGE :)
Anuta_ua [19.1K]
Since PB' = (3/5)*PB, the scale factor is 3/5, the 2nd choice.
6 0
2 years ago
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