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3 years ago

Check my answer? Please, no joking around guys.

Mathematics

2 answers:

ad-work [718]3 years ago

8 0

You're right. I think you did a good job.

WITCHER [35]3 years ago

3 0

This is a right angle triangle
So we can use the tangent
tan x = 5/20
tan x= 0.25
x=tan^-1 (0.25)
x= 14.04 degrees
So yes you're correct

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1. Determine whether each expression is equivalent to (4x)2/3. Select Yes or No for each expression.

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3 years ago

How do you find total area of a cylinder

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By using the formula pie radius squared times the height

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3 years ago

5r^2-13r-6=0 How do I solve this

frosja888 [35]

$5 {r}^{2} - 13r - 6 = 0 \\ a = 5 \\ b = - 13 \\ c = - 16 \\$

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2.5

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7 0

3 years ago

Read 2 more answers

A box of candy bars costs $3.12. Each candy bar in the box costs $0.52. How many candy bars are in the box?

bulgar [2K]

Answer:

6 candy bards

Step-by-step explanation:

$3.12 (total)

each one is $0.52

3.12=0.52b

divide on both sides

3.12/0.52

6 candy bars

(summarized, divide 0.52 by 3.12)

3 0

3 years ago

) The manager of a local Gap store estimates that on average the probability of a customer entering the store and will purchase

xeze [42]

Answer: 1. 0.0256

2. 0.4096

Step-by-step explanation:

Binomial probability formula , to find the probability of getting x successes:

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where n= Total number of trials

p= Probability of getting success in each trial.

Let x be the number of customers will make purchase.

As per given , we have

p= 0.20

n= 4

1. The probability that 3 of the next 4 customers will make a purchase will be:-

$P(x=3)=^4C_3(0.20)^3(1-0.20)^{4-3}$

$P(x=3)=(4)(0.20)^3(0.80)^{1}\ \ [\because\ ^nC_{n-1}=n]$

$P(x=3)=(4)(0.008)(0.80)=0.0256$

Hence, the probability that 3 of the next 4 customers will make a purchase = 0.0256

2. The probability that none of the next 4 customers will make a purchase will be :

$P(x=0)=^4C_0(0.20)^0(1-0.20)^{4-0}$

$P(x=0)=(1)(0.80)^{4}\ \ [\because\ ^nC_{0}=1]$

$P(x=0)=0.4096$

Hence, the probability that none of the next 4 customers will make a purchase= 0.4096

5 0

3 years ago