Let Surface Area A, a the base edge and h the height:
A = a²+2a√(a²/4+h²)
h=?
pythagorean theorem:
h²=c²-a²
h=√(c²-a²)
h=√(8²-(.7/2)²)= 8
plug it in the above equation A= 11.7ft²
So A is correct
Answer:
A rational number is a number that can be express as the ratio of two integers.
Step-by-step explanation:
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:
x > 2
Step-by-step explanation:
-2x > -4 you get this by subtracting 8 from the left side and in turn subtracting 8 from the other side
x > 2 you get this by dividing -2 from both sides
Answer:
13.75/ hour
Step-by-step explanation:
$192.50/14 hours= $13.75/hour
$247.50/18 hours= $13.75/hour
$453.75/33 hours= $13.75/hour
