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NISA [10]
3 years ago
15

A computer is sold for a certain price and then its value changes exponentially over time.

Mathematics
1 answer:
sineoko [7]3 years ago
7 0
the computer loses 50%, percent of its value each year. (Answer)
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A researcher believes that 12% of a simple random sample of adults will be able to identify a Toyota Scion by brand and model na
DochEvi [55]

Answer: 650

Step-by-step explanation:

When prior estimate of population proportion is known , then the formula to find the required sample size is given by :-

n=p(1-p)(\dfrac{z^*}{E})^2

, where p= population proportion

E= margin of error

z* = Critical value.

Let p be the proportion of adults able to identify a Toyota Scion by brand and model name.

As per given , we have

p = 12%= 0.12

E= 2.5%=0.025

Critical value for 95% confidence interval : z* = 1.960  [By z-table ]

Then, the required sample size = n=(0.12)(1-(0.12))(\dfrac{1.96}{0.025})^2

n=(0.1056)(78.4)^2

n=(0.1056)(6146.56)

n=649.076736\approx650

Thus , the required sample size = 650

6 0
2 years ago
A manufacturer of matches randomly and independently puts 24 matches in each box of matches produced. The company knows that one
DochEvi [55]

Answer:

There is a 0.36% Chance of 1 or fewer in every 24 matches being flawed.

Step-by-step explanation:

Firstly we need to know what 1/10 of 5 is. It is 0.5.

You then need to multiply 24 by 1.5 to get 36. We then need to  divide that by 100 to get a percentage and we end up with 0.36%

Here is an explanation of how to get percentages: https://www.mathsisfun.com/converting-fractions-percents.html

6 0
3 years ago
What is the product of (3y^-4)(2y^-4)?
borishaifa [10]
(x^a)(x^b)=x^(a+b)

(ab)(cd)=(a)(b)(c)(d)

x^-m=1/(x^m)


(3y^-4)(2y^-4)=
(3)(y^-4)(2)(y^-4)=
(6)(y^-8)=
6/(y^8)
4 0
3 years ago
Read 2 more answers
What is the answer for this question plz help
emmainna [20.7K]
So you swap sides and you have 3x=93 and then you divide 3 by 93 and you get x=31
6 0
2 years ago
Sara is 6 years older than max in 3 years she’ll be 1 1/2 of max’s age . how old is max ?
Andrews [41]
S = m+6
(s + 3) = (m + 3)1.5
When solved m=9 and s=15
When plugged in it works.
So max is 9 years old
4 0
3 years ago
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