Answer:
a = 5, b = -12
Step-by-step explanation:
By basic factoring, you get 9 - 12i + 
. Since 
is simply -1, the expression evaluates to 9 - 12i - 4, which is 5 - 12i.
Answer:
210
Step-by-step explanation:
Answer:
The answer is three
Step-by-step explanation:
the 2 bottom angles equal to 180
Answer:
(96.91, 101.09)
Step-by-step explanation:
To calculate the interval, you require the Z value at 95% confidence interval. The Z value is 1.96. The formula to calculate the confidence interval:
Where X is the mean and s is the standard deviation and x the sample size:
The interval is (96.91, 101.09)
Answer:
y = - 3x + 21
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 3x + 4 ← is in slope- intercept form
with slope m = - 3
Parallel lines have equal slopes , then
y = - 3x + c ← is the partial equation
To find c substitute (7, 0 ) into the partial equation
0 = - 21 + c ⇒ c = 0 + 21 = 21
y = - 3x + 21 ← equation of parallel line
