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Alona [7]
2 years ago
8

Please i need this to be done. The end of the marking period is Friday and i have until tomorrow to do some of this can anyone h

elp??

Mathematics
1 answer:
Serga [27]2 years ago
7 0
I will do 2 and 5 but I want you succeed so do the rest alone ok

2 is 13

5 is 2y I think good luck
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A printer toner company launches a new product. The number of pages that this new toner can print is normally distributed with a
Vitek1552 [10]

Answer:

Step-by-step explanation:

Since the number of pages that this new toner can print is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = the number of pages.

µ = mean

σ = standard deviation

From the information given,

µ = 2300 pages

σ = 150 pages

1)

the probability that this toner can print more than 2100 pages is expressed as

P(x > 2100) = 1 - P(x ≤ 2100)

For x = 2100,

z = (2100 - 2300)/150 = - 1.33

Looking at the normal distribution table, the probability corresponding to the z score is 0.092

P(x > 2100) = 1 - 0.092 = 0.908

2) P(x < 2200)

z = (x - µ)/σ/√n

n = 10

z = (2200 - 2300)/150/√10

z = - 100/47.43 = - 2.12

Looking at the normal distribution table, the probability corresponding to the z score is 0.017

P(x < 2200) = 0.017

3) for underperforming toners, the z score corresponding to the probability value of 3%(0.03) is

- 1.88

Therefore,

- 1.88 = (x - 2300)/150

150 × - 1.88 = x - 2300

- 288 = x - 2300

x = - 288 + 2300

x = 2018

The threshold should be

x < 2018 pages

4 0
3 years ago
3) A school's enrollment in 2019 was 692 students. In 2020 they enrolled 852 students. What was the % increase in students from
elena55 [62]

Answer:

D. 23.1%

Step-by-step explanation:

852-692=160    160/692=0.231213873  rounds to 0.231  move decimal over two places to the right to make it percent which is 23.1%

5 0
3 years ago
Help! can someone help me out on this?
Fynjy0 [20]

Answer:

solve by substitution method

6 0
3 years ago
Can someone help me with this algebra question? I don’t get it :( and I’m not tryna fail
ArbitrLikvidat [17]

Answer:

Step-by-step explanation:

if f(x)=3x-1 and g(x)=2x+5 then

f(x)-g(x)=3x-1-(2x+5)

f(x)-g(x)=3x-1-2x-5

f(x)-g(x)=x-6

8 0
2 years ago
URGENT PLEASE I AM TIMED URGENT SOLVE THE PROBLEM AND PLEASE, PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER, GIVE DETAIL'S I WILL MARK
Neko [114]

I'm pretty sure you just multiply the 1 1/4 by 3 because if 1 1/4 makes 10 muffins you need to make 3 more dozens so 1 1/4 times 3 equals 3.75

3 0
3 years ago
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