Answer:
x = -4 x = 3
Step-by-step explanation:
To find the x intercepts, set y =0
(x+4) (-x+3) =0
Using the zero product property
x+4 =0 -x+3 =0
x = -4 x = 3
To find the minimum score, you will consider that the mean of 80 must spread out between all possible scores.
Because the last exam counts double, you will consider 5 scores.
5 x 80 = 400 total points are what Tina needs.
400 - (94 + 68 + 88) = 150.
She must earn half of 150 points on her exam to earn an 80% overall grade.
A 75 is what Tina will need.
The better buy would be the 16- ounce bottle of shampoo for $7
We know that tanθ = sinθ/cosθ
For a number to be undefined, the denominator must equal to 0. At π/2, the cosθ value is 0 and sinθ is 1. Hence, tan(π/2) is undefined.
Hope I helped :)
Answer:
9*10=90 so 6*9=54 then answer is 90:54
Step-by-step explanation: