Answer:
x = -7, y = -9
Step-by-step explanation:
The coefficient (the number before) the y is the same but the signs are opposite so add the equations together:
x-3x+y-y=-16+30
-2x=14
x=-7
y=-16-x=-16--7=-9
Answer:
4 inches
Step-by-step explanation:
The volume of a box is the product of its dimensions:
V = LWH
Fill in the given information and solve for the unknown value.
30 in³ = (3 in)(2.5 in)H
30 in³/(7.5 in²) = H . . . . . . . divide by the coefficient of H
H = 4 in . . . . . evaluate
The height of the box is 4 inches.
Answer:
Step-by-step explanation:
1) 6 tan2x − 6 tan2x sin2x
=
2) 
3) 
4) x=6cos t
So cost =x/6
so -3sint
5)
Answer: 2500
Step-by-step explanation: 250 spins times the amount of greens expected equals 2500.
You can substitute a number in for x and compare the answer choices (not the most efficient way but it's how I would do it). Let's just say x = 5. Then the expression would equal 0.25819889. Substitute 5 in for x is the answer choices and see which one is the same.
A) simplified is 0.004 repeating
B) simplified is 0.25819889
C) simplified is 0.12
D) simplified is 1.341640786
We can see that B is the right answer
