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larisa86 [58]
3 years ago
9

Dimitri wants to measure the height of the palm tree. He lines himself up with the palm tree's shadow so that the tip of his sha

dow meets the tip of the palm tree. then he ask a friend to measure the distant from where he was standing to the tip of his shadow and the distance from the palm tree to the tip of his shadow what is the height of the palm tree

Mathematics
2 answers:
kompoz [17]3 years ago
8 0

Answer:

24 feet

Step-by-step explanation:

First, I used the proportion method to set up the numbers. I used x for the height of the tree.

x/45 = 6/11.25

Notice that the x and the 6 are both the heights of the tree and Dimitri and that they are both on the top of the fractions.

45 and 11.25 are the lengths of the shadows and they are both on the bottom of the fractions.

Next, I did 6 times 45 and got 270. Then I did 270 divided by 11.25 and got 24.

You're welcome!     :)

PSYCHO15rus [73]3 years ago
5 0

Answer:

24 ft  

Step-by-step explanation:

Let h = the height of the tree.

The two triangles are similar, so

h/45 = 6/11.25     Multiply each side by 45

      h = 24 ft

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a scout meeting lasts 2 hours. if 36 minutes was spent on making dream catchers, what percentage of the meeting is left
Llana [10]

Answer:

70% of the meeting is left.

Step-by-step explanation:

Hi, to answer this question, first, we have to convert the hours to minutes.

Since 1 hour = 60 minutes

For 2 hours:

1 /60 = 2/x

x = 2 (60)

x = 120 minutes

So, a scout meeting last 120 minutes (2 hours)

36 minutes already spent.

120-36 = 84 minutes left

So, if 120 is the 100% of the meeting, for 84 minutes:

120/100 = 84/x

1.2 =84/x

x = 84/1.2

x = 70%

70% of the meeting is left.

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3 years ago
If the sales tax on 150 is 7.50, what is the percent of sales tax?
Solnce55 [7]
5 percent is the answer.
4 0
3 years ago
How do I solve inequalities with fractions on both sides?
KIM [24]
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6 0
3 years ago
It is assumed that the mean weight of a Labrador retriever is 70 pounds. A breeder claims that the average weight of an adult ma
Sindrei [870]

Answer:

z(s) is in the acceptance region we accept H₀. We don´t have enough evidence to support the breeder´s claim

Step-by-step explanation:

We will test the breeder´s claim at 95% ( CI) or significance level

α = 5 %   α = 0,05    α /2 = 0,025

Sample Information:

sample size   n  = 45

sample mean   x  = 72,5 pounds

Sample standard deviation  s = 16,1

1.-Hypothesis Test:

Null Hypothesis                              H₀        x  =  70

Alternative Hypothesis                  Hₐ        x  ≠  70

Alternative hypothesis contains the information about what kind of test has  to be developed ( in this case it will be a two-tail tets)

2.-z (c) is from z-table     z(c) = 1,96

3.- z(s)  =  ( x - 70 ) / 16,1 / √45

z(s)  =  (72,5 -70 ) *√45 / 16,1

z(s)  = 2,5 * 6,71 / 16,1

z(s)  = 1,04

4.-Comparing  z(s) and z(c)

z(s)  <  z(c)

Then z(s) is in the acceptance region we accept H₀. We don´t have enough evidence to support the breeder´s claim

7 0
3 years ago
Read 2 more answers
ANYONE ABLE TO HELP??? ASAP!!!!
Artemon [7]
I belive it c but i mit be wrong so dont mark it

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3 years ago
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