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sergiy2304 [10]
3 years ago
5

Dylan place is a ladder against the wall. The base of the ladder is 5 feet from the wall. The latter is 12 feet long. How high w

as the ladder reach? Round to the nearest foot.
Mathematics
1 answer:
Dvinal [7]3 years ago
4 0

Answer:

13

Step-by-step explanation:

Equation: a^2 + b^2 = c^2

5^2 + 12^2 = c^2

25 + 144 = c^2

169 = c^2 also equals (the square root of 169 = c)

The square root of 169 = 13

C = 13

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An SRS of 450 450 high school seniors gained an average of ¯ x = 20 x¯=20 points in their second attempt at the SAT Mathematics
maria [59]

Answer: (15.47, 24.53)

Step-by-step explanation:

We know that the confidence interval for population mean is given by :_

\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}

, where n= sample size.

\sigma = standard deviation.

\overline{x}= sample mean.

z*= Critical value.

Given : n= 450

\overline{x}=20

\sigma=49

Critical value for 95% confidence = z*=1.96     [From z-value table]

Then, the 95% confidence interval will be :-

20\pm (1.96)\dfrac{49}{\sqrt{450}}

\approx 20\pm (1.96)(2.31)

\approx 20\pm 4.53

=(20-4.53,\ 20+4.53)=(15.47,\ 24.53)

Hence, the 95% confidence interval for the mean change in score μ μ in the population of all high school seniors. : (15.47, 24.53)

3 0
3 years ago
Can I get step by step explanation and answer on numbers 2,4,14, and 36 please
neonofarm [45]

answer for 2nd is <u>Constant</u><u>.</u>

answer for 4th is <u>Evaluate</u><u>.</u>

answer for 14th is <u>one </u><u>subtracted </u><u>from </u><u>a </u><u>number </u><u>w.</u>

answer for 36th is <u>a</u><u> </u><u>number</u><u> </u><u>n</u><u> </u><u>is </u><u>divided </u><u>by </u><u>2.</u><u>4</u>

<u>hope </u><u>it </u><u>helps </u><u>you </u><u>mate </u><u>thanks </u><u>for </u><u>the </u><u>question </u><u>and </u><u>if </u><u>possible </u><u>please </u><u>mark </u><u>it </u><u>as </u><u>brainliest </u>

7 0
3 years ago
I can’t seem to find this, I’m having trouble with this question! It would be nice if someone could help! Thanks
Elenna [48]

Answer:

-456 I think but I could be wrong though

8 0
2 years ago
Find the slope of the line containing the given pair of points. (2, 4) and (8, 13)
IrinaK [193]

Answer:

m = 3/2

Step-by-step explanation:

Use the slope formula: (y2 - y1) / (x2 - x1)

4 0
3 years ago
Please answer and show work.
andrew11 [14]
Simplifying
9 + -2x = 35

Solving
9 + -2x = 35

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + -2x = 35 + -9

Combine like terms: 9 + -9 = 0
0 + -2x = 35 + -9
-2x = 35 + -9

Combine like terms: 35 + -9 = 26
-2x = 26

Divide each side by '-2'.
x = -13

Simplifying
x = -13
4 0
3 years ago
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