Answer:
the ratio for this blueprint is 1:20
Step-by-step explanation:
The scale on a blueprint indicates that ½ " equals 10 feet
The ratio is in the form of a:b
Here from the given information
the value of 'a' is 1/2 and the value of b is 10
so the ratio a:b becomes
Multiply both sides of the ratio by 2 to remove fraction
so the ratio for this blueprint is 1:20
Answer:
see explanation
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
here m = and (a, b) = (- 7, 2), thus
y - 2 = (x + 7) ← in point- slope form
Answer:
11 students out of 902 responded above 35
Step-by-step explanation:
Using z-score we can find what percentage of student will be above 35. Using this percentage we can calculate how many students out of 902 scored above 35.
Mean = u = 26
Standard deviation = s = 4
Target Value = x = 35
Formula for the z score is:
Using the values in this formula, we get:
Using the z table we can find the percentage of values that would be 2.25 standard deviations above the mean in a normal distribution. Using the z-table we get this value to be 0.0122 or 1.22%
Thus 1.22% of the values will be above 35.
1.22% of 902 is 11 (rounded to nearest whole number)
Thus 11 students out of 902 responded above 35