Answer:
ABC is a right triangle. Angle B is 90 degrees. XYZ is not a right triangle. There are no points or angles with 90 degrees.
Step-by-step explanation:
Let us assume the weight of grapefruit = x pounds
Weight of the apples = 1 5/8 pounds
= 13/8 pounds
Weight of the bananas = 3/16 pounds
The total weight of her purchase = 7 1/2 pounds
= 15/2 pounds
Then we get the equation as
x + 13/8 + 3/16 = 15/2
16x + 26 + 3 = 16 * (15/2)
16x + 29 = 8 * 15
16x + 29 = 120
16x = 120 - 29
16x = 91
x = 91/16
So the weight of the grapefruit is 91/16 pounds. It can also be written
as 5 11/16 pounds
Answer: c=19 and n=4
please mark as brainliest if it helped
p = 0.25
q = 1 - p = 0.75
x = 82
n = 400
psample = x/n = 82/400 = 0.205
test statistic, z = (psample - p) / sqrt(pq/n) = (0.205 - 0.25) / sqrt(0.25×0.75/400) = -2.078