As you can see those two angles are supplementary which the sum of two angles = 180°
So,
(9a + 6) + 75 = 180
Subtract 75 on both sides:
9a + 6 = 105
Subtract 6 on those sides:
9a = 99
Divide 9 on both sides:
a = 11
-
10,011,138,124 is the answer
Answer:
there are 86493225 possible ways you can get a bag of 12 doughnuts
Step-by-step explanation:
since we do not care about the order of the donuts in the bag ,we will need to calculate the number of possible combinations for 30 different elements in a group of 12 , then:
Number of combinations=C= n! /[(n-r)!*r!]
where n= number of elements , r= group size
replacing values
C= n! /[(n-r)!*r!] = 30!/[(30-12)!*12!] = 86493225 possible combinations
$732 I believe, hope this helps! <3
This question more or less tries to trick you with the positive number in parentheses, as you would carry out subtraction as normal. However, since the number you are subtracting from is also negative, it would be easier to think about it as adding two positives, and setting aside the negative symbol for the answer.
-282 - 1017 = -(282 + 1017) = -(1299) = -1299
which is your final answer.
-282 - (+1017) = -1299.
Hope that helped! =)
