Answer:
3
Step-by-step explanation:
75÷5-[(9-7)×3]×2
do innermost inclusion symbols first, which would be 9-7
75÷5-[2×3]×2
now multiply 2 and 3
75÷5-(6)×2
now divide 75 by 5
15-6×2
now multiply
15-12
3
If you divide 16 by 8 you get 2. The constant rate is 2 drops a second, and or minute. I hope this is the answer your looking for.
Mode are repeating numbers in a sequence therefore 23 is your mode
Answer:
a) The 90% confidence interval is
b) The margin of error is 0.063.
Step-by-step explanation:
We have to construct a 90% confidence interval for the proportion of students enrolled in college or a trade school within 12 months of graduating from high school in 2013.
We have a sample of 160 students, and a proportion of:
The standard deviation is:
As the sample size is big enough, we use the z-value as statistic. For a 90% CI, the z-value is z=1.645.
Then, the margin of error is:
Then, the 90% confidence interval is:
Answer:
48:18:24 or ∠A = 48, ∠B = 18, ∠C = 24
Step-by-step explanation:
Since The angles of a triangle add up to 90, then 8 + 3 + 4 should equal to 90 if multiplied by x.
Example:
x(8 + 3 + 4) = 90
x(15) = 90
15/15x = 90/15
x = 6
If x is equal to 6, then 6 times 8, 6 times 3, and 6 times 4, should equal their respective angles and add up to 90.
Example:
8 * 6 = 48
3 * 6 = 18
4 * 6 = 24
48 + 24 + 18 = 90
This means the angles are
48:18:24 or ∠A = 48, ∠B = 18, ∠C = 24