Answer: 71.6°
tan-1(9/3) = 71.56505118°
Answer:
Adults $ 17
Students: $8
Step-by-step explanation:
Adults: x
Students: y
a) 25x + 31y = 673
b) 27x +31y = 707
Elimination:
a) -1(25x + 31y = 673) = -25 -31y = -673
a + b
= (-25 -31y = -673) + (27x + 31y = 707)
= 2x = 34
x = 34/2
x = 17
Substitution a or b:
a) 25(17) + 31y = 673
425 + 31y = 673
31y = 673 - 425
31y = 248
y = 248/31
y = 8
Answer:
V≈434.89
Step-by-step explanation:
V=4/3πr^3
plug the numbers in and you get 434.89
Answer:
9t + 8
Step-by-step explanation:
9t + (5+3)
Think of it like this. You have 9 oranges, 5 grapes, and 3 grapes. How many grapes and oranges do you have?
Math wise, we will have t representing oranges, and the normal numbers representing grapes. All you have to do is combine them using whatever sign separates them. If you need more help, let me know.
