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Mariana [72]
2 years ago
10

PLEASE HELP :) LOTS OF POINTS + BRAINLY

Mathematics
1 answer:
pogonyaev2 years ago
4 0

Jackson's method to figure out the height of the mountain is from the

similar triangles formed by the light using the mirror.

Response:

  • The height of the mountain is <u>50 feet 8 inches</u>

<h3>Which methods can used to find the height of the mountain?</h3>

The given parameters are;

Distance of the mirror from Jackson = 5 feet

Distance of the mirror from the base of the mountain = 40 feet

Height of Jackson = 6'4'' tall

Required:

The approximate height of the mountain, <em>h</em>

Solution:

The triangles formed by the light from the top of the mountain which is

reflected to Jackson from the mirror, Jackson's height, the height of the

mountain, and their distances from the mirror, are similar triangles.

The ratio of corresponding sides of similar triangles are equal, therefore,

we have;

\dfrac{Jackson's \ height}{Jackson's \ distance \ from \ the \ mirror } =\mathbf{ \dfrac{Height \ of \ the \ mountain}{Distance \ of \ the \ mountain \ from \ the \ mirror}}

Which gives;

\dfrac{6\frac{1}{3} \, ft.}{5 \, ft.} = \mathbf{ \dfrac{h}{40 \, ft.}}

h = 480 \, in. \times \dfrac{76 \, in.}{60 \, in.} = 608 \, in. = \mathbf{50 \frac{2}{3} \, ft. = 50 \, feet \ 8 \, inches}

  • The height of the mountain is approximately <u>50 feet 8 inches</u>

Learn more about similar triangles here:

brainly.com/question/23467926

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Scott wishes to make a line plot of the heights in inches for a basketball team. The heights are listed below. Use the drop-down
Liono4ka [1.6K]

The least value in the data set is 69 and the greatest value in the data set is 84. In a frequency table of this data, the data values with the greatest frequency are 74, 78, 79, 82, and 84.

<h3>What is frequency?</h3>

If a number appears x times then the frequency of the number will be x.

Scott wishes to make a line plot of the heights in inches for a basketball team.

The heights are listed below.

Use the drop-down menus to make the statements below true.

74, 79, 78, 79, 82, 73, 82, 84, 80, 84, 74, 76, 69, 78, 81

Arrange in order, then we have

69, 73, 74, 74, 76, 78, 78, 79, 79, 80, 81, 82, 82, 84, 84

The least value in the data set is 69 and the greatest value in the data set is 84.

In a frequency table of this data, the data values with the greatest frequency are 74, 78, 79, 82, and 84.

More about the frequency link is given below.

brainly.com/question/5102661

#SPJ1

3 0
2 years ago
The sum of the first 3 terms of a geometric series is 171 and the common ratio is 2/3
Nimfa-mama [501]
<h3>Answer:  81</h3>

==============================================

Work Shown:

a = first term

a*(2/3) = (2/3)a= second term

(2/3)a*(2/3) = (4/9)a = third term

note how I multiplied each previous term by the common ratio (2/3) to get the next term

Add up the three terms

a + (2/3)a + (4/9)a = (9/9)a + (6/9)a + (4/9)a = (19/9)a

Set this equal to 171, which is what we want the first three terms to sum to, then solve for 'a'

(19/9)a = 171

a = (9/19)*171

a = 81 is the first term

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

Checking the answer:

a = 81 = first term

(2/3)*a = (2/3)*81 = 54 = second term

(4/9)*a = (4/9)*81 = 36 = third term

adding up the three terms gets us

81+54+36 = 171

so we have confirmed the answer

4 0
3 years ago
F and H are sets of real numbers defined as follows.
Marina CMI [18]

Answer:

(a)F \cup H=(3, \infty)\\(b)F \cap H=(6, \infty)

Step-by-step explanation:

Given the sets F and H of real numbers defined as given:

F={w | w>3}

H={w | w>6}

To write a set in interval  notation, we use these brackets, (  ) for < or > while we use [ or ] for \leq $ or \geq.

Since our sets are defined by strict inequalities(< or >)

In interval notation

F=(3,\infty), H=(6,\infty)

(a) F \cup H =(3,\infty) \cup (6,\infty) \\\\F \cup H=(3, \infty)\\\\(b) F \cap H =(3,\infty) \cap (6,\infty) \\\\F \cap H=(6, \infty)

8 0
3 years ago
Help please i need to get this done
Elina [12.6K]

Answer:

√22

Step-by-step explanation:

7 0
3 years ago
A student found the slope of a line that passes through the points (3,15) and (5,9) to be -1/3. what mistake did he make
Vlad [161]

He didn't do it as rise over run, or y2-y1/x2-x1

He did it reverse, which is incorrect.

4 0
4 years ago
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