2 years ago

I need help on this.

Mathematics

2 answers:

Rasek [7]2 years ago

7 0

Answer:

Step-by-step explanation:

Vadim26 [7]2 years ago

6 0

Answer:

its PQ for a fact

Step-by-step explanation:

trust i nme

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Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c

Delvig [45]

Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X $\sim$ Bin (n,p)

Here

n = 8

p = 0.20 or 20%

Now this is a binomial probability distribution

$P(X) = ^nC_x \times p^x \tmes (1 - p)^{n-x}\\\\P(3) = ^8C_3 \tims 0.20^3 \times (1 - 0.20)^5$

= 0.15

Hence, the correct answer is 0.15

5 0

2 years ago

What is the answer to this question?

Klio2033 [76]

Hey!!!
Answer is.....

Area=
$\pi {r}^{2}$
$3.14 \times {15}^{2}$
$706.5$
Answer is 706.5 cm^2...

HOPE IT HELPS YOU '_'

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2 years ago

Read 2 more answers

Angie baked 100 cookies and 20 brownies. she wants to split them into equal groups for the bake sale. Each group must have the s

Pavlova-9 [17]

Angie can make 50 groups of cookies and brownies.

3 0

2 years ago

Solve the simplify 1/4 times 4/7

Nutka1998 [239]

$\dfrac{1}{\not4_1}\cdot\dfrac{\not4^1}{7}=\dfrac{1}{1}\cdot\dfrac{1}{7}=\boxed{\dfrac{1}{7}}$

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2 years ago

Find the area of a kite with diagonals 15 m and 7 m.

lozanna [386]

Answer:

Step-by-step explanation:

The formula of an area of a kite:

$A=\dfrac{e\cdot f}{2}$

<em>e, f</em><em> - diagonals</em>

<em />

We have <em>e = 15m, f = 7m.</em>

Substitute:

$A=\dfraC{(15)(7)}{2}=\dfrac{105}{2}=52.5\ m^2$

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2 years ago