The probability that at least one of the calculators is defective is : 0.725
<h3>What is probability?</h3>
Probability is the likelihood of an event happening or not.
if there is certainty that the event would happen probability is 1.
Analysis:
probability = required outcome/possible outcome
for 33 good calculators and 12 defective calculators, total calculators = 45
4 calculators were chosen, possible outcome = 45C4 = 148995
Required outcome = 33C3 . 12C1 + 33C2 . 12C2 + 33C1 . 12C3 + 33C0 . 12C4
= 65472 + 34848 + 7260 + 495 = 108075
Probability = 108075/148995 = 0.725
Learn more about Probability: brainly.com/question/25870256
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Answer: 8 and 
<u>Step-by-step explanation:</u>
x + 
= 
need to eliminate the denominator:
x(8x) + (8x) = (8x)
8x² + 8 = 65x
8x² - 65x + 8 = 0
(8x -1)(x - 8) = 0
(8x -1) = 0 (x - 8) = 0
x = x = 8
Answer:
62 1/4 = 62.25
Step-by-step explanation:
Turn the improper fraction into a mixed number then divide as an equation.
62 x 4 = 248
248 + 1 = 249.
Put the 249 over the 4 and divide.
249/4 = 249 ÷ 4 = 62.25
Answer: it's the Y intercept
Step-by-step explanation:
It appears to be a y=mx +b linear equation, where 0.0067 is the slope and 17 would be the y intercept.
Answer:
Step-by-step explanation:
Consider the real number y such that f ⁻¹(x) = y
We need to find y in order to determine the expression of f ⁻¹(x)
f(y) = x ⇔ -2y + 4 = x
⇔ 4 - x = 2y
⇔ y = (4 - x)/2
