Answer:
3 = 95, 4 = 85, if a and b are parallel
Step-by-step explanation:
Answer:
20 L of 22% solution and 8 L of 36% solution
Step-by-step explanation:
Volume of 22% solution + volume of 36% solution = volume of 26% solution
x + y = 28
Acid in 22% solution + acid in 36% solution = acid in 26% solution
0.22x + 0.36y = 0.26(28)
0.22x + 0.36y = 7.28
Solve the system of equations using either elimination or substitution. I'll use substitution:
x = 28 − y
0.22(28 − y) + 0.36y = 7.28
6.16 − 0.22y + 0.36y = 7.28
0.14y = 1.12
y = 8
x = 28 − y
x = 20
The chemist should use 20 L of 22% solution and 8 L of 36% solution.
Answer:
a = 12 ft, b = 12 ft
Step-by-step explanation:
The triangle is 45 45 90 right triangle
so a = b
Ratio of leg : hypo. = a : a√2
Given hypo = 12√2, so legs a = b = 12
Answer
a = 12 ft, b = 12 ft
<span>It can be assumed that the sample mean would would be approximately normal by the mean distribution theorem. The mean distribution theorem states that a large enough sample size will have a distribution and mean approximately the same as the population mean. A sample of 250, half the size of 500, is of sufficient size to assume the distribution mean will be approximately normal like the population mean.</span>
Answer:
I can't help if there is no question.
