Answer:
Option D) 0.1935
Step-by-step explanation:
We are given the following information:
We treat adults in Ohio support the increase as a success.
P(Adults in Ohio support the increase) = 40% = 0.4
Then the number of adults follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 7
P(exactly 4 people support the increase in tax)
0.1935 is the probability that exactly 4 out of 7 adults in Ohio suppert the increase.
Thus, the correct answer is
Option D) 0.1935
$10 + $20 =$30
$11 + $15=$26
The second activation is better because it is cheaper by $4.
4x^2 -28c + 40 = 1
-28c = 1 -4x^2 -40
-28c = -39 -4x^2
c = 39/28 + 4/28x^2
c = 39/28 + 1/7x^2 => answer
Answer:
The sum of half of a number and three-fourths is at least five and one quarter
Step-by-step explanation:
It's all about making sense of an English sentence.
"half the sum ..." is different from "the sum of half ..."
And ...
"at least" and "not less than" mean the same (≥)
"not more than" and "at most" mean the same (≤)
_____
Since all of the expressions are written out in words, it is a matter of matching the ideas expressed. That's a problem in reading comprehension, not math.
__
"One-half x + three-fourths [is] greater-than-or-equal-to 5 and one-fourth"
means the same as ...
"The sum of half of a number and three-fourths is at least five and one quarter"
