Answer:
The measure of angle ABC is 50°
Step-by-step explanation:
step 1
Find the measure of angle ACB
we know that
∠ACB+∠ACD=180° ----> by supplementary angles
see the attached figure to better understand the problem
∠ACB=180°-127°=53°
step 2
Find the measure of angle ABC
we know that
The sum of the interior angles of a triangle must be equal to 180 degrees
so
∠ABC+∠ACB+∠BAC=180°
substitute the given values
∠ABC+53°+77°=180°
∠ABC=180°-130°=50°
9514 1404 393
Answer:
Step-by-step explanation:
The slope is the ratio of rise to run. The rise between the two points is 2 units; the run is 8 units, so the slope is ...
m = rise/run = 2/8 = 1/4
The y-intercept (b) is the y-value where the line crosses the y-axis. For this line, that is y = 2, so b = 2.
Putting these values of m and b into the equation y = mx +b gives ...
y = 1/4x +2
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 9 runs.
What is his new mean score?
Give your answers as decimals.
a)
b)
Answer:
A) 13.4
B) 13
Step-by-step explanation: