Answer:D
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Isoceles triangle
Answer:
f(2) = 1
(1) = 2
(f(2)) = 2
Step-by-step explanation:
f(x) = x
(x) = 2x
f(2) = (2)
f(2) = 1
(1) = 2(1)
(1) = 2
(f(2)) = 2((2))
(f(2)) = 2(1)
(f(2)) = 2
Answer:
<em>He bought 6 hotdogs and 2 drinks</em>
Step-by-step explanation:
<u>System of Equations</u>
Kevin and his children went into a restaurant and bought $31.50 worth of hotdogs and drinks. Each hotdog costs $4.50 and each drink costs $2.25.
To solve the system of equations, we'll call the variables:
x = number of hotdogs
y = number of drinks
The first condition yields the equation:
4.50x + 2.25y = 31.50 [1]
It's also known he bought 3 times as many hotdogs as drinks, thus:
x = 3y [2}
Substituting [2] in [1]:
4.50(3y) + 2.25y = 31.50
Operating:
13.5y + 2.25y = 31.50
15.75y = 31.50
y = 31.50/15.75
y = 2
And
x = 3*2 = 6
He bought 6 hotdogs and 2 drinks
Using Venn probabilities, it is found that the probability that he receives an offer on at least one of the jobs is given by:
D. 0.80
<h3>What is a Venn probability?</h3>
In a Venn probability, two non-independent events are related with each other, as are their probabilities.
The "or probability" is given by:

In this problem, we have that:
- 50% chance of getting an offer on Job A, hence P(A) = 0.5.
- 60% chance of getting an offer on Job B, hence P(B) = 0.6.
- 30% chance of getting an offer on both jobs, hence
.
Then, the probability of getting an offer on at least one job is:

Hence option D is correct.
More can be learned about Venn probabilities at brainly.com/question/25698611