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Alina [70]
3 years ago
14

A. X=3 m B. X=5 m C. X=6 m D. X=9 m

Mathematics
2 answers:
enyata [817]3 years ago
8 0

Answer:

ok so we can divide 15 by 5 to get 3

so we know the building is 3 times bigger

so we multiply 3 by 3 to get 9

so the answer is D

Ksivusya [100]3 years ago
7 0

Answer:

9

Step-by-step explanation:

Since the triangles are similar, we can use ratios to solve

Letting h be the height of the tower

15        h

-----  = ------

5           3

Using cross products

15*3 = 5h

Divide each side by 5

45/5 = 5h/5

9 = h

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Ierofanga [76]
6,756.36

Is the answer to thing question hope this helps
3 0
3 years ago
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A psychological researcher did a study with a sample of 84 boys and found that the meam length of time that they remained engage
lord [1]
Part a)
Best estimate for the population mean u:

The population is normally distributed. The best estimate for population mean would be the mean of the sample. So the best estimate for the population mean is 107 seconds. 

Part b)
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We have the sample mean and population standard deviation so using the z distribution we can find the confidence interval.

The z value corresponding to 99% confidence interval is 2.576

The confidence interval can be found as:

(u-z* \frac{s}{ \sqrt{n} } ,u+z* \frac{s}{ \sqrt{n} })

Using the values in the above expression we get:

(107-2.576* \frac{11.7}{ \sqrt{84} } ,107-2.576* \frac{11.7}{ \sqrt{84} }) \\  \\ &#10;=(103.71,110.29)

This means the 99% confidence interval for the population mean is 103.71 to 110.29
4 0
3 years ago
1:3 2/5 x 2 1/3
Iteru [2.4K]
1. 34/15

2. 11/6

3. 13/10

4. 35/12

5. 10/27
8 0
3 years ago
The graph of the function f(x)=3/x+5 is shown below.
loris [4]
The vertical asympote is the value of x that makes the denominator equal to zero:
x+5=0
Solving for x:
x+5-5=0-5
x=-5

The vertical asymptote is x=-5

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5 0
3 years ago
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vovikov84 [41]

Answer:

7/100

Step-by-step explanation:

16/100 to 23/100

23-16 = 7

7/100 added

4 0
3 years ago
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