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dybincka [34]
3 years ago
14

(1) A student writes a five question multiple-choice quiz. Each question has four possible responses. The student guesses at ran

dom for each question. Find the probability that the student has only one correct answer. A. 0.40 B. 0.53 C. 0.25 D. 0.20
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
4 0

Answer:

(D) 0.20

Step-by-step explanation:

There are 5 questions in the quiz.

Each question has 4 options to pick from

The student guesses at random for each (and every) question.

Find the probability that the student has only 1 correct answer.

- Focusing less on the "4" options and more on the "5" questions in the quiz, the probability that the student has only 1 correct answer out of 5 is

1/5 = 0.20

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Prove:ABCD is a parallelogram
labwork [276]

Answer:

Given

Step-by-step explanation:

<A and <D are supplementary

7 0
3 years ago
What is the missing step in this proof? a. ∠abc ≅ ∠dbe b. ∠bca ≅ ∠bde c. ∠acb ≅ ∠deb d. ∠bde ≅ ∠ade e. ∠cab ≅ ∠dac
Nana76 [90]

Based on the reflexive property of congruency, the missing step in the proof is: A. ∠ABC ≅ ∠DBE

<h3>What is the Reflexive Property of Congruency?</h3>

The reflexive property of congruency states that an angle will always be congruent to itself.

In the diagram given, we can prove that ∠ABC ≅ ∠DBE based on the reflexive property.

Therefore, the missing step in nthe proof is: A. ∠ABC ≅ ∠DBE

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5 0
2 years ago
6(7x+7)=7(6x+6) how do I solve this ​
lesantik [10]
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8 0
3 years ago
Kalani had a length of 3 1/3m of cloth and cut 2 5/12 strips the full width of the cloth. Let l represent the length, in meters,
Vesna [10]

The multiplication and division equations to represent the relationship are 2 5/12 * l = 3 1/3 and 3 1/3 ÷ 2 5/12 = l

<h3>How to select 1 multiplication and 1 division equation to represent relationship?</h3>

The given parameters are:

Length = 3 1/3 m

Strip = 2 5/12

The length in meters of each whole strip is represented as l

So, we have:

Length ÷ Strip = l

Substitute the known values in the above equation

3 1/3 ÷ 2 5/12 = l

Divide both sides by 2 5/12

2 5/12 * l = 3 1/3

Hence, the multiplication and division equations to represent the relationship are 2 5/12 * l = 3 1/3 and 3 1/3 ÷ 2 5/12 = l

Read more about multiplication and division at

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3 0
2 years ago
Find the area below
Katen [24]

Answer:

A = 760.27

Step-by-step explanation:

The shape presented is a semicircle, and the formula for this is:

A = \frac{3.14r^{2} }{2}

The "r," is the radius, which is half of the diameter, in this case is 44, so all you need to do is divide 44 by 2 = 22, then plug this in:

A = \frac{3.14(22)^{2} }{2}

A = \frac{3.14(484)}{2}

A = \frac{1520.53}{2}

A = 760.27

5 0
3 years ago
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