Answer:
DIAMETER: 2*3=6
AREA: Π*3^2=9Π
CIRCUMFERENCE: 2*Π*3=6
Step-by-step explanation:
Answer:
First we substitute
4(-3) - 6(-1)
-7 -6
-13
Step-by-step explanation:
Answer:
x = 53
Step-by-step explanation:
The entire line is BC, the line DE bisects the line BC, meaning it cut the line in half. So CE is half of BC, so the equation for CE has to be multiplied by 2. Therefore:
5x - 3 = (2x + 25)2
multiply
5x - 3 = 4x + 50
ad 3 to both sides
5x = 4x + 53
subtract 4x from both sides
x = 53
Input into the equation to check:
5x - 3 = (2x + 25)2
5(53) - 3 = (2(53) + 25)2
265 - 3 = (106 + 25)2
262 = (131)2
262 = 262, it's correct :)
Answer:
0.13
Step-by-step explanation:
First let's find the probability of finding the first species or the second species:
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) = 0.61 + 0.08 - 0.28
P(A or B) = 0.41
Then, to find the probability of finding one or another but not both, we just need the symmetric difference of the events, that is: P(A or B) - P(A and B):
P(A or B) - P(A and B) = 0.41 - 0.28 = 0.13
Answer:
x = -2
y = -1
Step-by-step explanation:
2x+y = -5 so y = -5-2x
3x+2y = -8
substitute for y
3x+2(-5-2x) = -8
3x-10-4x = -8
-10-x = -8
add 10 to both sides
-10+10-x = -8+10
-x = 2
divide both sides by -1
-x/-1 = 2/-1
x = -2
y = -5-2(-2)
y = -5+4
y = -1