Answer:
x = 17
Step-by-step explanation:
x + x + 8 = 42 because x = boys and x + 8 = girls
2x = 34 because 2x = 42 - 8
x = 17
i hope this helps! you don't need the 2x = 42 - 8 to be an equation ;)
No this is not true because 3/5 + 4 equals 4.6 and 3/5 is 0.6
7. increasing; non-linear
8.A. y=4^x
9.A. y=6x
Answer:
x = 2
Step-by-step explanation:
Since this is a 45-45-90 triangle, the 2 legs will be the same, meaning that y will also be
.
We can then solve for x using the Pythagorean theorem:

Or, we could use a quicker approach: if the triangle is a 45-45-90 triangle, the hypotenuse will be
times the length of 1 leg. It essentially does the same thing; it's just faster so you could save time on tests.
Answer:
B
Step-by-step explanation:
|x + 2| + 5 > 8
x+ 2 + 5 > 8
x + 7 > 8
x > 1
or
-(x + 2) + 5 > 8
-x -2 > 3
-x > 5
x < -5
answer: B
x < - 5 or x > 1