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How do you write the sum of 1 and the quantity -2 times x?
3
What does double mean in math?
It means you multiply some quantity times 2.It means you multiply some quantity times 2.It means you multiply some quantity times 2.It means you multiply some quantity times 2.
Why is the formula for area of a triangle and area of a trapezoid are what they are?
area triangle = 1/2 base times height area trapezoid = 1/2 (sum of bases) times height
How do you find the sum of the measures of the angles of a triangle?
(number of sides) - (2) times (180) = sum of interior angle measurements so for a triangle it is 3-2 which is 1 times 180 = 180, so the answer is 180 degrees
What is the sum of all numbers from one to one hundred?
50501 + 2 + 3 + . . . . + 99 + 100 = ?Arrange the numbers to add them like this:(1 + 100) + (2 + 99) + (3 + 98) + . . . . + (50 + 51) = ?If you notice every pair of numbers adds up to 101. There are 50pairs of numbers, so the answer is 50*101 = 5050.In general to find the sum of all the numbers from 1 to N:1 + 2 + 3 + 4 + . . . . + N = (1 + N)*(N/2)That is "1 plus N quantity times N divided by 2."Hope this helps.
