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3 years ago

Someone please help, i already asked this but i really need this!!!

Mathematics

1 answer:

Vikki [24]3 years ago

6 0

Answer:

Step-by-step explanation:

Blue Triangles

Area of 1 blue triangle

Area = 1/2 B * H

B = 3 m

H = 4.5 m

Area = 1/2 * 3 * 4.5

Area = 1/2 13.5

Area = 6.75

Hold on. I forgot there were 4 triangles.

4 * 6.75 = 27 meters^2 of material

Green Base

Area = s * s

s = 3

Area = 3 * 3 = 9

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Step-by-step explanation:

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Parallelogram- A quadrilateral with 2 pairs of parallel sides is a parallelogram.

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2 years ago

Calculate the value of the marked angle

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2 years ago

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Can someone please answer this?

Finger [1]

Answer:

if you need these worked out lmk hope this helps :)

Step-by-step explanation:

1.) infinite solutions

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3 years ago

A manufacturer knows that 14% of the products it produces are defective. Find the probability that among 7 randomly selected pro

diamong [38]

Answer: 0.6521

Step-by-step explanation:

According to the Binomial distribution , the provability of getting x successes in n trials is given by :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where p=probability of getting success in each trial.

Let x denotes the number of defective products.

here , n=7 and p =0.14

Then, the probability that among 7 randomly selected products, at least one of them is defective= P(X ≥ 1) =1- P(X<1)

= 1- P(X=0)

$=1-^7C_0(0.14)^0(1-0.14)^7$

$=1-(1(1)(0.86)^7\ \[\because ^nC_0=1]$

$=1-0.347927822217$

$=0.652072177783\approx0.6521$

Hence, the probability that among 7 randomly selected products, at least one of them is defective is 0.6521 .

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3 years ago