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2 years ago

How do i solve this question.

Mathematics

1 answer:

algol [13]2 years ago

8 0

Try a protractor to solve it

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Philip ran out of time while taking a multiple-choice test and plans to guess on the last 4 questions. Each question has 5 possi

belka [17]

Answer:

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either it is correct, or it is not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.

In this problem we have that:

There are four questions, so n = 4.

Each question has 5 options, one of which is correct. So

What is the probability that he answers exactly 1 question correctly in the last 4 questions?

This is

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

My guess...

⊕⊕⊕

6 0

3 years ago

Dennis stood on a 9 foot ladder to measure the sunflower. How much taller is the tallest sunflower than the ladder?

Shalnov [3]

Answer:

See Explanation

Step-by-step explanation:

Given

$Ladder = 9ft$

$Tallest\ Sunflower = x$

Required

How much taller is the tallest

To get this, we simply calculate the difference between the height of the tallest sunflower and the ladder.

i.e.

$Difference = Tallest\ Sunflower - Ladder$

$Difference = x - 9$

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

If for instance, the tallest is 13ft, then it is 4ft taller.

Because:

$Difference = 13ft - 9ft$

$Difference = 4ft$

4 0

2 years ago

Dan has twelve blue balloon. he wants to give his six friends the same number of blue balloons

brilliants [131]

Answer:

each of them 2 balloons

hope this helps

Step-by-step explanation:

6 0

2 years ago

mariana tinha 169 balas ela prometeu dar a raiz quadrada de suas balas a seu primo igor Depois de dar as balas a seu primo,deu 3

koban [17]

√169= 13

169-13 = 156

156 - 37 = 119

Mariana ficou com 119 balas.

3 0

2 years ago

Use row reduction to find the inverse of the given matrix if it exists, and check your answer by multiplication.

lakkis [162]

Step-by-step explanation: see attachment below

8 0

2 years ago

Read 2 more answers