A≈2.78
30 x 5 = 150
150/54 ≈ 2.78
answer
7.44 points
set up equation
we know the total score and the scores for two levels
to find the total score, we would add up the points from all levels
total score = level1 + level2 + level3
values
these values are given in the problem
total score = 23.43
level2 = 7.96
level3 = 8.03
plug in values and solve
total score = level1 + level2 + level3
23.43 = level1 + 7.96 + 8.03
level 1 = 23.43 - 7.96 - 8.03
level 1 = 7.44
Answer:
Number 3 and 2
Step-by-step explanation:
you can use desmos to check ur answers
I believe this would be the Distributive Property.
Answer:
-4/5
Step-by-step explanation:
Let α and β be the roots of the quadratic equation
ax²+bx+c = 0
Sum of roots α + β = -b/a
Product of roots αβ = c/a
Given the equation 16x²+4x+5 = 0
a = 16, b = 4, c = 5
Sum of roots α + β = -4/16 = -1/4
Product of roots αβ = 5/16
To calculate 1/α + 1/β, we will need to find the LCM first'
1/α + 1/β
= (β+α)/αβ
= sum of roots/product of roots
= (-1/4)/(5/16)
= -1/4×16/5
= -4/5