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schepotkina [342]
3 years ago
15

Please help me I don’t understand part B

Mathematics
1 answer:
mr Goodwill [35]3 years ago
8 0

Answer:

Multiplying a number by n is equivalent to dividing it by 1/n.

Step-by-step explanation:

We generalise  for any whole number n.

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Answer??? please please
SCORPION-xisa [38]

Answer:

58 = <1

Step-by-step explanation:

The sum of the opposite interior angles of a triangle is equal to the exterior angle

101 = 43+ <1

Subtract 43 from each side

101- 43 = <1

58 = <1

4 0
3 years ago
Read 2 more answers
A zoo kitchen's weekly grocery list shows the zoo orders 56pounds of each week . The zoo kitchen is the same number of pounds of
katrin2010 [14]
I guess the answer is 56 it doesn't make sense
6 0
3 years ago
The manufacturer of the ColorSmart-5000 television set claims 95 percent of its sets last at least five years without needing a
patriot [66]

Answer:

Step-by-step explanation:

Hello!

Your study variable is X: "number of ColorSmart-5000 that didn't need repairs after 5 years of use, in a sample of 390"

X~Bi (n;ρ)

ρ: population proportion of ColorSmart-5000 that didn't need repairs after 5 years of use. ρ = 0.95

n= 390

x= 303

sample proportion ^ρ: x/n = 303/390 = 0.776 ≅ 0.78

Applying the Central Limit Theorem you approximate the distribution of the sample proportion to normal to obtain the statistic to use.

You are asked to estimate the population proportion of televisions that didn't require repairs with a confidence interval, the formula is:

^ρ±Z_{1-\alpha /2}* √[(^ρ(1-^ρ))/n]

Z_{1-\alpha /2} = Z_{0.995} = 2.58

0.78±2.58* √[(0.78(1-0.78))/390]

0.0541

[0.726;0.834]

With a confidence level of 99% you'd expect that the interval [0.726;0.834] contains the true value of the proportion of ColorSmart-5000 that didn't need repairs after 5 years of use.

I hope it helps!

7 0
3 years ago
I need help please ..
mafiozo [28]
The answer is A hope this helped
3 0
3 years ago
3(x-5)=9 i don't know what to do
Dafna1 [17]

Answer:

x=8

Step-by-step explanation:

3(x-5)=9

3x-15=9

3x-15+15=9+15

3x=24

x=8

8 0
3 years ago
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