4x²=100
x²=100/4
x²=25
x=√25
x=+5 or -5
Answer: The probability is zero.
Step-by-step explanation:
The labels on the 4 cards are 1, 3, 5 and 7. Because the cards are equal, the probability of dragging at random each one of them is equal to 1/4 = 0.25.
Now, the probability that Tim selects a card labeled with a 4 is equal to the number of cards labeled with a 4, divided the total number of cards.
We do not have cards labeled with a 4, so the probability is:
p = 0/4 = 0
because we do not have any card labeled with a 4, the probability of selecting one at random is equal to zero.
Answer:
Step-by-step explanation:
Givens
x = the larger number
y = the smaller number
Equations
x+y =95
x + 2y = 120
Solution
x+y =95
x + 2y = 120
x + y = 95 Subtract
y = 25
x + y = 95
x + 25 = 95
x + 25 -25 = 95 - 25
x = 70
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I did the problem before I realized that I could have stopped after equations.
The answer is the middle choice.
Answer:
a =5
Step-by-step explanation:
-26a-3+20a=27
Combine like terms
-6a -3 = 27
Add 3 to each side
-6a -3+3 =27+3
-6a = 30
Divide each side by -6
-6a/-6 = 30/-6
a =5
It is quadratic since a quadratic function is of the form :y=ax²+bx+c ,a,b,c are constants.