Answer:
x= 7
Step-by-step explanation:
The equation is 8+4= 2(x-1)
Distribute into the parenthesis.
8+4= 2x-2
Now, add.
12= 2x-2
Add 2 to both sides.
12= 2x-2
+2 +2
Then, divide by 2 to both sides to isolate the variable.
<u>14</u>= <u>2x</u>
2 2
x=7
Answer:
3.09
Step-by-step explanation:
The sample proportion can be calculated as phat=x/n
phat=180/590=0.305
The z statistic for proportion can be calculated as
Where p=population proportion=0.25
q=1-p=1-0.25=0.75
n=590
phat=sample proportion=0.305
So, the required z-statistic is
z=3.085
As the rounding of answer to two decimal places is needed, so, the z statistic=3.09.
The last one is the good one.
The point slope formula is,
Where,
And,
So,
Answer:
115-50=65
Step-by-step explanation:
the sum of two interior angles = ext angle
Step-by-step explanation:
1.)
2.)
3.)