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tatiyna
3 years ago
7

What is three less than the product of four and the difference of a number and five

Mathematics
1 answer:
lilavasa [31]3 years ago
3 0

Answer: 3-4n-5

Step-by-step explanation: 3-4 times an number-5 is 3-4n-5.

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Suppose that a state introduces a state income tax which will be at a flat rate of 3%. The state legislature wishes to estimate
Greeley [361]

Answer:

The mean income is more useful

Step-by-step explanation:

If you know the mean income, then you can obtain the total income by multiplying for the total population. Once you know the total income, you can deduce the amount of money collected by multiplting the total income by 0.03.

Knowing the median income does only help you so much. The mediam income is only a parameter that says that 50% of the population earn less than that. However, if you dont know how much the richer people earn, you cant deduce how much from taxes will you collect. For a simplified example, the sets A = {1,3,18} and B = {1,3,4} have the same median, 3. however A sums a total of 22, while B only sums 8.

The mode of income alone is also not enough. Again, You can have a lot of salaries ranging from similar values, but if you dont know the exact value of other clusters of salaries, specifically the biggest ones, you will lack a lot of information. As a simplified example, the Sets A = {1,3,3,3,3,3,3, 7, 7,7} and B = {1,3,3,3,3,3,3,3,3,75} have both of them 3 as the most frequent number, however A has a mean of 4, while B has a mean of 10, despite having only 1 mayor cluster of numbers.

Is short, the mean is the bets way to determine the amount of rax collection, because it puts more realistic '<em>weights</em>' on higher income, and because it lets you obtain exact results for the total amount of income.

I hope this helped you!

8 0
3 years ago
Find the length of arc XPY. Leave your answer in terms of pi.​
PIT_PIT [208]

Answer:

2π m.

Step-by-step explanation:

Arc XY is 1/4 of the circumference of the circle

= 1/4 * 2π * r

= 1/2 π * 4

= 2π m.

8 0
2 years ago
Find the measure of the third angle of a triangle given the measures of two angles
sattari [20]
We know that all three angles in a triangle must add to 180 degrees so we can use this fact to find the measure of the missing angles.  
180-57-101= 22 degrees
180-72-72=36 degrees
180-x-20=160-x degrees
7 0
3 years ago
Solve for x <br> Need help on this
enyata [817]
Mid segment of triangle = 1/2 base
base = x here, so
1/2x = 15
multiply both sides by 2,
x=30

answer: x=30
5 0
2 years ago
PLEASE HELP <br><br> THERE ARE MANY QUESTIONS LIKE THIS ON MY PAGE SO U CAN JUST KEEP GETTING POINTS
Nastasia [14]

Answer: 1

Step-by-step explanation:

first, i multiplied it all out.

1.5^2/1.5^2

then, i simply divided it all.

1

8 0
2 years ago
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