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aleksklad [387]

2 years ago

6

Hamid is playing a trivia game with multiple choice questions. Each question has 2 correct answers among 5

2 answers:

goblinko [34]2 years ago

6 0

The probability that Hamid guesses both answers correctly is 10%.

Since Hamid is playing a trivia game with multiple choice questions, and each question has 2 correct answers among 5 answer choices, and Hamid has no idea what the answers to a certain question are, so he needs to choose two different answers at random, to determine what is the probability that Hamid guesses both answers correctly the following calculation must be performed:

2/5 x 1/4 = X
0.4 x 0.25 = X
0.1 = X
0.1 x 100 = 10

Therefore, the probability that Hamid guesses both answers correctly is 10%.

Learn more in brainly.com/question/22049333

NISA [10]2 years ago

5 0

Answer:

.1

Step-by-step explanation:

khan

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Help me it’s urgent

Ket [755]

Answer:

$a_1 = -\dfrac{3}{4}$

Step-by-step explanation:

$a_1 \times r = a_2$

$a_1 \times r^2 = a_3$

$a_1 \times r^3 = a_4$

...

$a_1 \times r^8 = a_9$

$\dfrac{a_9}{a_4} = \dfrac{a_1 \times r^8}{a_1 \times r^3} = \dfrac{-196}{6}$

$r^5 = -32$

$r = -2$

$a_1 \times r^3 = a_4$

$a_1 \times (-2)^3 = 6$

$a_1 = \dfrac{6}{-8}$

$a_1 = -\dfrac{3}{4}$

3 0

3 years ago

A rectangle has a perimeter 60m and base21 m what is its area

Komok [63]

Since you're given the base for the perimeter of the rectangle, you can solve this question quickly.

First, you multiply 21 by 2, because there are two bases to a rectangle.

You'll get 42, and you will have to do 60-42 to find the perimeter for the remaining two sides.

60-42 will give you 18, so you can divide that by 2 because there are two other sides, giving you 9.

Now you have the side lengths 21 and 9. Area is base*height, so you can multiply 21*9 and get 189.

Therefore, the area of the rectangle is 189 meters

5 0

3 years ago

The manager of a grocery store reports that there is a 12 percent chance that a customer buys apples during a shopping trip, a 5

FromTheMoon [43]

P(A) = 0.12
$P(A\cap C)=0.05$
$P(A\cup C)=0.17=P(A)+P(C)-P(A\cap C)$
$0.17=0.12+P(C)-0.05$
$P(C)=0.17-0.12+0.05=0.10$

5 0

3 years ago

Read 2 more answers

What is the percent of change to 125 centimeteres 87.5 centimeters?

MrRa [10]

I hope this helps you

125-87,5=37,5

125 37,5

100 ?

?.125=100.37,5

?=3750/125

?=30

30%

5 0

2 years ago

7 + (2 + 6) 2 ÷ 4 ⋅ (1/2)^4<br><br> A: 23<br> B: 18<br> C: 9<br> D: 8

Drupady [299]

Answer:

D: 8

Step-by-step explanation:

7 + (2 + 6) ^2 ÷ 4 ⋅ (1/2)^4

According to PEMDAS

We to parentheses first

7 + (8)^ 2 ÷ 4 ⋅ (1/2)^4

Then we do exponents

7 + 64 ÷ 4 ⋅ (1/16)

The multiply and divide from left to right

7+64 ÷ 4 ⋅ (1/16)

7+16 ⋅ (1/16)

Then add and subtract from left to right

7+1

8

6 0

3 years ago