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qaws [65]
2 years ago
15

WILL GIVE BRAINLIEST if you show your work

Mathematics
2 answers:
KATRIN_1 [288]2 years ago
5 0

Answer:

���

Step-by-step explanation:

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GaryK [48]2 years ago
5 0

Answer:

\frac{x-9}{4x}

Step-by-step explanation:

The image below shows step-by-step on how to evaluate the expression.

Hope this help! :)

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X+2=-2x+8<br> I am stuck
Irina-Kira [14]

Answer:

the correct answer is x = 2

3 0
2 years ago
During the summer months, science center tickets are 3 for $36.75 and zoo tickets are 4 for $51. How much will a group of 12 stu
Tatiana [17]

Answer:

$6

Step-by-step explanation:

Step 1:

36.75 × 4 = 147

Step 2:

51 × 3 = 153

Step 3:

153 - 147 = 6

The group of 12 students will save $6 by choosing the Science Center.

5 0
2 years ago
Read 2 more answers
Samples of 20 parts from a metal punching process are selected every hour. Typically, 1% of the parts require rework. Let X deno
Roman55 [17]

Answer:

a) P(X>np+3\sqrt{np(1-p)}=0.017

b) P(x>1)=0.190

c) P(Y>1)=0.651

Step-by-step explanation:

This a binomial experiment where success is denoted by parts that need rework.

X ∼ B(n, p); n = 20; p = 0.01

The expected value of X is: E(X) = np =20×0.01= 0.2

The variance is: Var(X) = np(1 − p) = 0.2 × 0.99 = 0.198,

The standard deviation SD(X)= \sqrt{0.198} ≈ 0.445

a) P(X>np+3\sqrt{np(1-p)}=P(X>0.2+3×0.445)=P(X>1.535)=P(X≥2)

Probability function is given by:

\frac{n!}{x!(n-x)!} *p^x*(1-p)^{(n-x)}

P(X≥2)=1-P(X<2)=1-P(X=1)-P(X=0)= 1 - \frac{20!}{1!(20-1)!} *(0.01)^{1}*(1-0.01)^{(20-1)}-\frac{20!}{0!(20-0)!} *(0.01)^{0}*(1-0.01)^{(20-0)}

P(X≥2)=1-0.165-0.818=0.017

b) p=0.04

P(x>1)=P(x≥2)= 1 - P(x=1) - P(x=0)= 1 - \frac{20!}{0!(20-1)!} *(0.04)^{1}*(1-0.04)^{(20-1)} - \frac{20!}{0!(20-0)!} *(0.04)^{0}*(1-0.04)^{(20-0)}

P(x>1)= 1 - 0.368 - 0.442=0.190

c) In this case we consider p=0.19 (Probability that X exceeds 1)

In this experiment Y is the number of hours and n= 5 hours.

Then, we check the probability in each hour:

P(Y>1)=1- P(Y=0)

P(Y=0)=\frac{5!}{0!(5-0)!} *(0.19)^{0}*(1-0.19)^{(5-0)}=0.349

P(Y>1)=1-0.349=0.651

3 0
3 years ago
Insert a digit to make the number divisible by 24 if possible:<br> 44_8<br> pls help
Nat2105 [25]

Answer:

it's 4488 Wich would make 187

5 0
3 years ago
The James63 Algorithm:<br><br> 13 x 63 + 592 / 72 x V<br><br> V = 13 x 63 + 592 / 72
Nonamiya [84]

Answer:

answer 1962323

Step-by-step explanation:

7 0
2 years ago
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