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2 years ago

Please help with this

Mathematics

1 answer:

Dafna1 [17]2 years ago

7 0

Answer:

697.24 and 886.76

Step-by-step explanation:

792+.92*103= 886.76

792-.92*103= 697.24

if that's not correct try 697.76 and 886.25

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Please help! it’s for 20 points

goldfiish [28.3K]

Function A isn't linear because it doesn't have a pattern on the y and Function B is a function because it has a pattern of .75 on the y or output

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3 years ago

Jerry started doing sit-ups every day. On the first day, he did 11 sit-ups. Every day after that he did 4 more sit-ups than he h

garik1379 [7]

Answer:

11x + 4x = 49

Step-by-step explanation:

11x represents the number of sit-ups done times the number of days and +4x represents 4 more each day times the number of days. Hope this helps you :)

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2 years ago

A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found tha

egoroff_w [7]

Answer:

Between 21 years and 75 years

Step-by-step explanation:

Given that a real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 48 years old, with a standard deviation of 9 years.

X the ages of home buyers is N(48, 9)

a) $30\leq x\leq 66\\|x-48|\leq 18\\|x-48|\leq 2\sigma$

Hence using Cheby chev inequality

$P(|x-48|\leq 2\sigma)\geq 1-\frac{1}{2^2} \\=0.75$

b) $25.5\leq x\leq 70.5\\|x-48|\leq 22.5\\|x-48|\leq 1.5\sigma$

$P(|x-48|\leq 1.5\sigma)\geq 1-\frac{1}{1.5^2} \\=0.556$

c) Using normal distribution we have

$P(|x-48|\leq 2\sigma)=0.95$

d) z value is 2.97

Hence x lies between

$(48-9*2.97, 49+9*2.97)\\=(21.27,74.73)$

Between 21 years and 75 years

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3 years ago

Problem 1 a jar contains blue, red and green balls. the null-hypothesis h0 is that there is 25% percent of red balls. (1) a samp

Norma-Jean [14]

(1) the probability of that happening is .4444.. so on. the jar isnt 25% red balls because 25% of 36 is only 9 and he pulled out 16 red balls.

I dont know number two sorry.

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2 years ago

I need help on this question

Margaret [11]

500(.25)=125 is the answer

8 0

3 years ago