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Tcecarenko [31]
3 years ago
12

Need help figuring out A=

Mathematics
1 answer:
Bogdan [553]3 years ago
5 0
Better labeling so I can understand.
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A box contains four equal-sized cards labeled 1 , 3, 5, and 7. Tim will select one card from the box. What is the probability th
JulsSmile [24]

Answer: 1/4

Step-by-step explanation:

Since the box box contains four equal-sized cards labeled 1 , 3, 5, and 7. The probability of selecting any number out of the four numbers will be 1/4 if they are selected once.

If Tim selects one card from the box, the probability that Tim will select a card labeled 3 will be: = 1/4

This is because 3 only occurs once and there are 4 numbers in total.

7 0
3 years ago
Use the Counting Principle to find the probability. Choosing the 7 winning lottery numbers when the numbers are chosen at random
frozen [14]

Answer:   120

<u>Step-by-step explanation:</u>

Since the order of the numbers doesn't matter we can use the formula:

\dfrac{n!}{r!(n-r)!}\quad \text{where n is the quantity of items and r is the quantity chosen}\\\\\text{In this problem, there are 10 numbers (n = 10) and 7 to be chosen (r = 7)}\\\\_{10}C_{7}=\dfrac{10!}{7!(10-7)!}\\\\.\qquad=\dfrac{10!}{7!3!}\\\\.\qquad=\dfrac{10\times 9\times 8\times 7!}{7!\times 3\times 2\times 1}\\\\.\qquad=10\times 3\times 4\\\\.\qquad=120

7 0
3 years ago
Read 2 more answers
What are the vertex and x-intercepts of the graph of the function given below?
valentinak56 [21]
Hello : 
x²-2x-24 =( x²-2x+1)-1-24 
              = (x-1)² -25 .....    ( vertex form)
<span>. Vertex: (1, -25);
 intercepts: x = 6, -4 because :
</span>f(x) = 0.....        (x-1)² -25 =0
(x-1)² = 5²
x-1=5 or x-1 = -5
x=6 or x=-4
6 0
3 years ago
Read 2 more answers
Someone please help.
frutty [35]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL HELP YOU
Sidana [21]

Answer:

5 is the answer

Step-by-step explanation:

hope this helps

7 0
2 years ago
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