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kirza4 [7]
3 years ago
8

Please help me Show your work

Mathematics
2 answers:
irakobra [83]3 years ago
4 0

<u>Answer:</u>

25 ft

<u>Step-by-step explanation:</u>

We are given a diagram which shows a student standing near a tree and the shadow of the student and tree end at one point.

Given the height of the student, distance between the student and end point of shadow and the distance between the tree and end point of shadow, we are to find the height of the tree.

We can use the ratio method:

\frac{8}{40} =\frac{5}{x}

x=\frac{5*40}{8} =25

Therefore, height of the tree is 25 ft.

vlabodo [156]3 years ago
3 0

Answer: x=25 feet.

Step-by-step explanation:

1. Keeping on mind simiilarity of triangles, you can calculate the height of the tree as following:

5/8=x/32

Where x is the height of the tree, as you can see in the figure attached in the problem.

2. Then, when you solve for the height, you obtain:

x=5*32/8

x=25

3. Therefore, the height of the tree is 25 feet.

 

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The GCF of 18 and 27 is _______.
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Answer:

9

Step-by-step explanation:

The factors of 18 are : 1, 2, 3, 6, 9, 18

The factors of 27 are : 1, 3, 9, 27

The common factors are : 1, 3, 9

The gcf is 9

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(NEED HELP ASAP)
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Answer:

The correct option is 1 and 4 are correct.

Step-by-step explanation:

The dilation is the enlargement and comparison of a figure according to the scale factor from the given center of dilation.

The rule DO,2(x,y)(2x,2y) express the dilation with factor 2 and the center of dilation is origin. It shows the enlargement of the triangle. The sides of image is twice of the preimage.

In dilation the corresponding angles remains same and the corresponding sides are equal.

\angle P=\angle P'

\angle PQR=\angle Q'

\angle R=\angle P'QQ'

PR=P'Q

PQ=P'Q'

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Therefore option 1 and 4 are correct.

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3 years ago
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What does x equal in the equation 2x + y - 3z equals -12
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2x+y-3z=12

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The circumference of a circle is 70 ft. What is the area, in square feet? Express your
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Which of the following represents the geometric sequence?
anastassius [24]
The answer is sequence I (choice A)
The common ratio is r = 1 because we multiply each term by 1 to get the next term. No change happens when we multiply any number by 1. Another way to find the common ratio is to pick any term and divide it by its previous term. 

----------------------------------

Choice B is not the answer because (1/5) divided by (1/4) = 0.2/0.25 = 0.8
and because (1/6) divided by (1/5) = 0.833 approximately. We don't get the same value each time. So the common ratio doesn't stay the same.

Choice C is not the answer either since most of the terms are positive but the -4 in slot 3 is not positive. If it was positive, then the common ratio would be 4 and this sequence would be geometric. If the terms alternated between positive and negative, then it would work as well (r would be r = -4)

Choice D has alternating terms of positive and negative, but there's no change in absolute value. There is no growth or decay as this the terms effectively stay the same. So there is no common ratio. This is why we can rule out choice D.
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4 years ago
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