Answer:
c. 18
Step-by-step explanation:
First, you would find the total sum of the 60 numbers. The average is always the sum of the numbers divided by the number of numbers.
35*18=630
15*10=150
Now we do not know how many numbers the last group has. However, we can find it out doing 60-35-15 to see how many numbers are left. There would be 10 numbers left
10*30=300
630+150+300=1080
1080/60=18
Hence, the answer is C(18)
Answer:
(m-4) / (5m)
Step-by-step explanation:
((m²-16) / (5m)) / (m+4) =
(m²-16) / (5m(m+4)) =
m²-16 / (5m²+20m) =
(m-4) / (5m)
Answer:
Option D is correct answer AD and CD are congruent
Step-by-step explanation:
because BD is bisector of AC
so AD = CD
Answer:
-23
Step-by-step explanation:
-2/3 = -26/39
-1/13= -3/39
-26/39- (-3/39) = -23
Answer:

Step-by-step explanation:
We do not have enough information for slope intercept form. But we can use the point-slope formula to find the information. The formula is
where we substitute a point (x,y) for
.
We have m=-3/4 and (-8, 7). We input m and
.

We now simplify the parenthesis and solve for y.

We convert 8 into a fraction with 1 as the denoinator.

We add 7 to both sides to isolate y,

This is slope intercept form. The line as slope -3/4 and y-intercept (0,1) or b=1.