identifying a number to multiply by when using the linear
combination method
warm-up
match each system to the number the first equation can be multiplied by to eliminate the
x-terms when adding to the second equation
-2x + 6y = 3
4x + 3y = 9
-8x + 10y = 16
-4x - 5y = 13
10x - 4y = -8
-5x + 6y = 10
3x - 8y =
6x + 5

answer: add the !

step-by-step explanation: then we will answer

120 seems like the most sensible answer.

step-by-step explanation:

if there is only one topping on all caramel apples and there's 120 of them. then all apples should/will be covered in sprinkles. make sense?

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92