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3 years ago

Find the Mean Absolute Deviation: 5, 11, 2, 7, 16.\ A.8.2 B.1.24 C.2.84 D.4.24

Mathematics

2 answers:

AlladinOne [14]3 years ago

7 0

Answer:

8.2

Step-by-step explanation:

5±11±2±7±16=41

41÷5=8.2

Digiron [165]3 years ago

5 0

I think it was B im not sure

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The speed of a car after accelerating for 8 seconds is inversely proportional to its weight. The car weighs 1600 kg and accelera

STatiana [176]

Answer:

With 800 extra kg load: speed = 66.667 km/h

With 2400 extra kg load: speed = 40 km/h

Step-by-step explanation:

Let's call the weight of the car W = 1600 kg, and its speed after accelerating for 8 seconds with this weight S = 100 km/h

If we load the car with 800 extra kg, the total weight will be:

W2 = W + 800 = 2400 kg

The relation between the weights is:

W2 / W = 2400 / 1600 = 1.5

If the weight increased 1.5 times, the relation between the speeds will be 1/1.5 (as they are inversely proportional), so:

S2 / S = 1 / 1.5

S2 = S / 1.5 = 66.667 km/h

If we load the car with 2400 extra kg, the total weight will be:

W3 = W + 2400 = 4000 kg

The relation between the weights is:

W3 / W = 4000 / 1600 = 2.5

If the weight increased 2.5 times, the relation between the speeds will be 1/2.5, so:

S3 / S = 1 / 2.5

S3 = S / 2.5 = 40 km/h

3 0

3 years ago

Read 2 more answers

What conjecture can you make about the sum of the first 29 positive even numbers?

hoa [83]

An = A1 + (N-1)d
A1 is the first term (in this case 2)
d is the common difference (what is the difference between all consecutive even numbers? 2)
N is the number of terms to find (in this case 29)
An = 2 + (29-1)2 = 58
I would say none of the above, unless you typed it wrong. The sum is the product of the number of terms minus one and two, plus two more. So it's almost answer B but not really. Good luck with this one.

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3 years ago

Simplify radical (1-cos0)(1+cos0)/ cos^2 0<br><br> HELP ME PLS!! ASAP

ycow [4]

That would be tan

(1-cos)(1+cos)=1-cos² which equals to sin²

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3 years ago

The park has a circular track with a radius of 7.6 yds. How many whole yards of fencing would they need to purchase to enclose t

ivolga24 [154]

Answer:

48 yards

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

$r=7.6\ yd\\\pi=3.14$

substitute

$C=2(3.14)(7.6)=48\ yd$

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3 years ago

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Compensation professionals in XYZ Company use regression analysis to determine the pay rates of its marketing professionals. The

alexdok [17]

Answer: This means that the salaries of their marketing professionals are not closely related to their job titles. In further explanation, this shows that a professional with a higher job title, may be paid a lower salary when compared to a professional with a lower job title.

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2 years ago