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3 years ago

9

Write True or False and then explain. The angle of depression is the same degree measure as the angle of elevation in a diagram.

1 answer:

Furkat [3]3 years ago

6 0

Answer:

The term angle of elevation denotes the angle from the horizontal upward to an object. An observer's line of sight would be above the horizontal. The term angle of depression denotes the angle from the horizontal downward to an object. ... Note that the angle of elevation and the angle of depression are congruent .

Step-by-step explanation:

True

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The set of numbers 1, 7, 11, and 36 contains values of m. What value of m makes the equation below true? 4m + 8 = 36

german

Answer:

i think its 7

Step-by-step explanation:

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3 years ago

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12.4. Measure of Dispersion<br>2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.

Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given sample size 'n' = 5

Given data 4, 6,8,10,12

$Mean = \frac{4+6+8+10+12}{5} = 8$

Mean of the sample x⁻ = 8

Standard deviation of the sample

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

<u><em>Step(ii)</em></u>:-

Given data

x : 4 6 8 10 12

x-x⁻ : 4 - 8 6-8 8-8 10-8 12-8

(x-x⁻) : -4 -2 0 2 4

(x-x⁻)² : 16 4 0 4 16

$S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}$

$S.D = \sqrt{\frac{16+4+0+4+16}{4}}$

S.D = √10 = 3.16227

<u><em> Final answer</em></u>:-

The standard deviation = 3.16227

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2 years ago

3 tins of beans and 4 tins of tomatoes cost 2.73. 5 tins of beans cost 1.55. how much is one tin of tomatoes?

Aneli [31]

Answer:

$0.45

Step-by-step explanation:

1 tin of beans-> $1.55÷3=$0.31

3 tins of beans-> $0.31×3=$0.93

4 tins of tomatoes-> $2.73-$0.93=$1.80

1 tin of tomatoes->$1.80÷4=$0.45

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2 years ago

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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