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3 years ago

I need help with question number 12. Can’t figure this answer. Tried for 1 hour.

Mathematics

1 answer:

o-na [289]3 years ago

5 0

Answer:

2, 12

Step-by-step explanation:

LCM = Least common multiple

LCM of 2 and 12 is 12

2 4 6 8 10 12

LCM of 6 and 8 is 24

6 12 18 24

8 16 24

LCM of 3 and 8 is 24

3 6 9 12 15 18 21 24

LCM of 12 and 24 is 24

12 24

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Suppose you have a mean standardized score of 1500 points with a standard deviation of 150 points. This data is normally distrib

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Answer:

z-score for 900 points = -4

Step-by-step explanation:

To find the z scores

z=(x-mean)/standard deviation

z=(900-1500)/150

z= -600/150

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3 years ago

If Martha earns $3.25 per hour for babysitting, how much will she earn in: 1.5 hours? 2.5 hours? 3.5 hours?

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3 years ago

Read 2 more answers

Can someone help me out with this question??

dybincka [34]

Answer:

No of cookies baked by Eva=24

No of cookies baked by Jamir=?

Total cookies=56

Solution

24+p=56

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3 years ago

URGENT WILL GET 20 and Brainlest

My name is Ann [436]

The polynomial that represents the difference between the cost of distributing by train and the cost of distributing by truck is:

$f(x) = -0.04x^2 + 18x + 75$

Solution:

The cost of distributing by train can be modeled as:

$-0.07x^2 + 40x - 105$

The cost of distributing by truck can be modeled as:

$-0.03x^2 + 22x - 180$

where x is the number of tons of product distributed

To find: Difference between the cost of distributing by train and the cost of distributing by truck

Difference = cost of distributing by train - cost of distributing by truck

Let f(x) = difference in cost between trains & trucks

$f(x) = (-0.07x^2+40x-105) - (-0.03x^2 +22x - 180)$

$f(x) = -0.07x^2 + 40x -105 + 0.03x^2 -22x + 180$

$Combine\ the\ like\ terms\\\\f(x) = -0.07x^2 +0.03x^2 + 40x - 22x +180-105\\\\Add\ the\ like\ terms\\\\f(x) = -0.04x^2 + 18x + 75$

Thus polynomial that represents the difference between the cost of distributing by train and the cost of distributing by truck is found

8 0

3 years ago