Answer:
Answer x = 8
Step-by-step explanation:
(5x + 4) + (8x - 18)= 90 The two angles must be complementary for this to work. Remove the brackets
5x + 4 + 8x - 18 = 90 Collect like terms
13x - 14 = 90 Add 14 to both sides
13x = 104 Divide by 13
x = 8 Answer
Check
Sin(8*8 - 18) = sin(64 - 18) = sin(46) = 0.7193
Cos(5*8 + 4) = cos(44) = 0.7193
This problem is very interesting. Thanks for posting.
So basically, first just do this step by step, or subtract 38 from 26 first.
26 - 38 is basically -(38 - 26), or -12.
So then, it becomes -12 + (-3)
A - and a + becomes - because you're adding negative 3.
-12 - 3
Which then becomes -15.
Answer:
6x to find x on it's own you need to divide by the number infront,
Step-by-step explanation:
6.974 rounded to the nearest tenth is 7.0, because 7 is more than 5, and since 9's there, we make that 6 to a 7.
Answer:
c. $9
Step-by-step explanation:
$3.98 + $4.19 + $0.79 = $8.96
Round to the nearest whole number which would be 9