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2 years ago

Send help please!! i want to complete it asap

Mathematics

1 answer:

Nadusha1986 [10]2 years ago

7 0

It’s a little complicated but here’s how it works:
Imagine a table with the intervals
0:4 , 4:6 , 6:7 , 7:10 , 10:13 (10 year intervals)
Then we have different rows
Class width: 4 , 2 , 1 , 3 , 3
Freq density: 0.2 , 0.5 , 1.2 , 0.7 , 0.3
So now calculate frequency where freq = class width * density
Freq: 0.8 , 1 , 3.6 , 2.1 , 0.9
So to find median find cumulative frequency
(Add all freq)
Cfreq = 8.4 now divide by 2 = 4.2
So find the interval where 4.2 lies.
0.8 + 1 = 1.8 + 3.6 = 5.6

So 4.2 (median) will lie in that interval 60-70 years.

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Paraphin [41]

Answer:

Step-by-step explanation:

Given infinite system of linear equations is ax + by = 0

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Since two of equation in thus system will be

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It is clear that x = 0, y= 0 is the only solution

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Vector form is

$\left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =I$

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so, the system will be inconsistent

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3 years ago

Write a linear equation given a slope of 6 and a y-intercept of 1/2

Alex777 [14]

it literally gave you the equation lol

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3 years ago

Read 2 more answers

Find four consecutive integers with the sum of -142

Akimi4 [234]

n, n + 1, n + 2, n + 3 - four consecutive integers

-142 - the sum

The equation:

n + (n + 1) + (n + 2) + (n + 3) = -142

n + n + 1 + n + 2 + n + 3 = -142

4n + 6 = -142 |subtract 6 from both sides

4n = -148 |divide both sides by 4

n = -37

n + 1 = -37 + 1 = -36

n + 2 = -37 + 2 = -35

n + 3 = -37 + 3 = -34

Answer: -37, -36, -35, -34.

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3 years ago

How many social security numbers are available if the only restriction is that the number 000-00-0000 cannot be assigned?

harkovskaia [24]

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multiply 10 nine times:
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the restriction is it can't be all zeros so subtract 1 from the total
1,000,000,000 - 1 = 999,999,999 combinations

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