Which question do you need help with ?
Answer:
13
Step-by-step explanation:
f(x) = x/2 +8
f(10) = 10/2 +8
f(10) = 5+8
f(10) = 13
Answer:
The measure of angle x is 25 degrees.
Step-by-step explanation:
Since triangle ABC is an isosceles triangle, the measure of angle BAC is equal to the measure of angle ACB. Angle ABC = 80 degrees, leaving 100 degrees to be divided equally for the measures of the other two angles. Now that you know that angle ACB = 50 degrees, you can calculate the value of angle ACD and determine that angle ACD = 130 degrees. Triangle ACD is also an isosceles triangle, and the two equal legs are AC and CD. Since angle ACD = 130 degrees, the other two angles have a total of 50 degrees. Splitting the 50 degrees equally between the two angles gives you 25 degrees as the value of angle CAD, which is labeled "x."
Answer:
15
Step-by-step explanation:
From the frequency table
70 - 79 → 5
80 - 89 → 6
90 - 100 → 4
Students scoring 70 or better = 5 + 6 + 4 = 15
