Answer is 76 - 2x
When solving these problems, you have to look at each individual word step by step
76 is being decreased
decreasing means something is being taken away from it, so this must be subtraction
76 -
by twice a number
so something is definitely being multiplied by 2
76-2
Now since we don't know this number that is being multiplied by 2 , you would have to put x in it's place.
76-2x
Answer:
The probability that at most 7 favor the new tax is 0.7869
Step-by-step explanation:
Total number of voting resident = 10000
number of voting resident against new sales tax = 4000
therefore probability of choosing a voting resident against new sales tax = 4000/10000 = 0.4
If 15 eligible voters are selected at random and asked their opinion, what is the probability that at most 7 favor the new tax
Using binomial,
number of selected voters(n) =15,
p=0.4
P(x<=0.7) = binomialcdf(15, 0.4, 7)
Using your calculator
P(x<=0.7) = binomialcdf(15, 0.4, 7) = 0.7869
Answer: B
Step-by-step explanation:
When calculating a circle, you have to find the radius, before you can find circumference, and then finally, when you find the area.
Answer:
Step-by-step explanation:
Vertical angles theorem states that vertical angles are congruent.
<u>Arcs EF and are intercepted by vertical angles, therefore:</u>
<u>Angle addition postulate. </u>
<u>Central angle has same measure with intercepted arc.</u>
<u>So the arc ABD is:</u>
