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3 years ago

I need help on this i don't understand this. plz help with steps plz. thanks!!

Mathematics

1 answer:

Vlad1618 [11]3 years ago

3 0

I know the answer but do i have to show you their phone numbers and send it out on the bay on open mic or no no

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Next week they will want to sell 40 tablets

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One cooy machine can run off copies in 198 minutes. A newer machine can do the same job in 126 minutes. How long does it take th

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3 years ago

What is 8% of 200?<br> 25<br> 4<br> 16<br> 8

Mashcka [7]

Answer:

Step-by-step explanation:

Please mark brainliest!

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It is known that 60% of customers will need additional maintenance on their vehicle when coming in for an oil change. A random s

inn [45]

Answer:

the probability that more than 70% of customers in the sample will need additional maintenance is 0.0371

Step-by-step explanation:

From the information given:

we are to determine the probability that more than 70% of customers in the sample will need additional maintenance

In order to achieve that, let X be the random variable that follows a binomial distribution.

Then X $\sim$ Bin(48, 0.6)

However 70% of 48 samples is

= 0.7 × 48 = 33.6 $\simeq$ 34

Therefore, the required probability is:

= P(X> 34)

$= \sum \limits ^{48}_{x=34} (^{48}_{x}) (0.6)^x(1 - 0.6)^{48-x}$

$= \dfrac{48!}{34!(48-34)!} (0.6)^{34} (0.4)^{48-34}$

$= 4.823206232 \times 10^{11} (0.60)^{34}(0.4)^{14}$

= 0.03709524328

$\simeq$ 0.0371

3 0

3 years ago

NEED HELP WILL GIVE 5 STAR, THANKS, AND BRAINLIEST FOR BEST ANSWER PLEASE HELP ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

yulyashka [42]

Answer:

h = -t+20

After 8 hours the candle will be 12 inches

Step-by-step explanation:

We have 2 points (time, inches)

(3,17) and (5,15)

We can find the slope

m = (y2-y1)/(x2-x1)

= (15-17)/(5-3)

= -2/2

= -1

We can use point slope form

y-y1 = m(x-x1)

Replace y with h and x with t

h-17 = -1 (t-3)

Distribute

h-17 = -t+3

Add 17 to each side

h-17+17 = -t+3+17

h = -t+20

After 8 hours

h = -t+20

h = -8+20

h= 12

4 0

3 years ago