Given the equation 4x+5y=20

Mathematics

1 answer:

tester [92]3 years ago

4 0

I hope this helps you

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400 is ten times as much as

Mrrafil [7]

40
Try dividing 400 by ten you'll get 40 (or just remove a zero or decimal point to the left when dividing by 10)

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3 years ago

How do I find mean median range iqr and standard deviation

ycow [4]

Answer: to find the mean add the numbers that were given then Divine by the amount of numbers you added. To find the median put all the numbers in numerical order and pick the middle one if it is an even amount of numbers than you pick the number exactly halfway between the two middle. To find the range you see how many numbers are repeated in which ever number is repeated the most amount of times that is the range.

Step-by-step explanation:

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2 years ago

Please help me please will give brainliest to anyone only do number 11

AnnZ [28]

9514 1404 393

Answer:

9. ±1, ±2, ±3, ±6

11. ±1, ±2, ±3, ±4, ±6, ±12

Step-by-step explanation:

The possible rational roots are (plus or minus) the divisors of the constant term, divided by the divisors of the leading coefficient.

Here, the leading coefficient is 1 in each case, so the possible rational roots are plus or minus a divisor of the constant term.

9. The constant is -6. Divisors of 6 are 1, 2, 3, 6. The possible rational roots are ...

±{1, 2, 3, 6}

11. The constant is 12. Divisors of 12 are 1, 2, 3, 4, 6, 12. The possible rational roots are ...

±{1, 2, 3, 4, 6, 12}

_____

A graphing calculator is useful for seeing if any of these values actually are roots of the equation. (The 4th-degree equation will have 2 complex roots.)