The resulting equation if Becca isolated x² in the first equation and then substituted it into the second equation is (9-y²) / 25 - y²/36 = 1
<h3>Equation</h3>
x² + y² = 9
x²/25 - y²/36 = 1
From (1)
x² = 9 - y²
substitute x² = 9 - y² into (2)
x²/25 - y²/36 = 1
(9-y²) / 25 - y²/36 = 1
Therefore, the resulting equation is option C; (9-y²) / 25 - y²/36 = 1
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Answer: 9 / 20
Step-by-step explanation:
Convert both of the fractions to decimals and then sum them up.
= 2/10 = 0.2
= 25/100 = 0.25
= 0.2 + 0.25
= 0.45
The convert this figure back to fractions.
As it is 2 digits after the decimal, it is over 100 when converted.
= 45 / 100
Take it to the lowest term:
= 45 / 100 ÷ 5
= 9 / 20
65ft because you would do 14+14=28 and 20+20=40. 40+28= 68. 68-3=65
<span>Its 21/36 or 7/12 i think </span>
Answer:
a) According to probability theory, the following are possible:
(1) The probability that a customer will buy 5 items in a single purchase is 30%. This represents a 0.30 chance of the customer buying 5 items.
(3) The probability that a customer will buy 3 items in a single purchase is 99% This means that there a 0.99 chance that the customer will buy 3 items.
b) According to probability theory, the following are not possible:
2) The probability that a customer will buy 3 items in a single purchase is 101%. Probability is always equal to 1 or 100%. It cannot exceed 100%.
(4) The probability that a customer will buy 8 item. This part lacks the necessary information to solve the problem.
Step-by-step explanation:
Probability describes the likelihood or chance of an event happening out of the many possible events that can take place. The sum of all probabilities for a particular event is always equal to 1. This shows that probability does not exceed 100%.