Assuming that the given triangle is a right triangle where height and base are equal, we can solve for the missing variables. Let us review the given problem, the given is the total area since unit of "a" is inch squared.
The formula for an area of a triangle is At = 1/2(bxh). We substitute the given value and assume that h=b.
Therefore, 48=1/2bh. To eliminate 1/2, we multiply both sides by 2. Then we have 96=bh. When b=h, we have b^2=96.
The missing variables are b=h=9.8.
Answer:
i dont know
Step-by-step explanation:
figure it out yourself
9(4) = 36
5(9) = 45
6(4) = 24
Answer:
70.06
Mean score = 70
Step-by-step explanation:
16% of students scored higher than 80 on a recent normally distributed exam the standard deviation is 10 what is the mean
For a normal distribution :
Zscore = (x - mean) / standard deviation
x = score
P(Z > 80) = 16% = 0.16 ; corresponding Zscore = 0.994 (Z probability calculator)
Therefore ;
0.994 = (80 - mean) / 10
0.994 * 10 = 80 - mean
9.94 = 80 - mean
Mean = 80 - 9.94
Mean = 70.06
Hence, the mean score = 70.06 = 70
