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3 years ago

Given: AD = CF

Mathematics

1 answer:

photoshop1234 [79]3 years ago

6 0

Answer:

The correct option is: C

Step-by-step explanation:

Since we are given steps so as to prove: AB=EF

1. AD = CF----- given

2. AD = AB + BC + CD

CF = CD + DE + EF ------ segment addition

3. AB + BC + CD = CD + DE + EF ------- Transitive Property of Equality

4. AB + BC = DE + EF

5. BC = DE ------ given

6. AB = EF ------- Subtraction Property of Equality

The reason for the fourth statement in the proof is Subtraction Property of Equality.

<em>" Since the side CD is added on both the sides of the equality; so we can subtract it from both the sides in order to obtain our statement 4 and proceed further " .</em>

Hence option C is correct.

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3 years ago

suppose that the lifetime of a transistor is a gamma random variable x with mean of 24 weeks and standard deviation of 12 weeks.

emmainna [20.7K]

The probability that the transistor will last between 12 and 24 weeks is 0.424

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The anticipated value, variance, and distribution of the random variable X were all provided to us. Finding the parameters alpha and beta is necessary before we can discover the solutions to the difficulties.

X~gamma( $\alpha ,\beta$ )

E(X)= $\alpha \beta$ $\beta$ = $12^{2}/24$ =6 weeks

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Now we can find the solutions:

The excel formula used to create Figure one is as follows:

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1 year ago

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sattari [20]

Answer:

2B / (mx) = y

Step-by-step explanation:

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2B / (mx) = mxy / (mx)

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2 years ago

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Dominic is 1.75 meters tall. At 2 p.m., he measures the length of a tree's shadow to be 37.95 meters. He stands 33.7 meters away

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Using similarity principle, the height of the tree is 1.97 meters

<h3>How to find height of the tree?</h3>

He is 1.75 meters tall.

His shadow = 33.7 meters

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Using similarity principles where the corresponding length are a ratio of each other.

Therefore,

1.75 / x = 33.7 / 37.95

cross multiply

37.95 × 1.75 = 33.7x

66.4125 = 33.7x

divide both sides by 33.7

x = 66.4125 / 33.7

x = 1.97069732938

x = 1.97 meters

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1 year ago

3 On a coordinate grid, the location of a lighthouse is at L, and the location of a buoy is at B. At noon, a ship is at the midp

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Answer:

$(\frac{1}{2}, 2)$

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