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asambeis [7]
3 years ago
5

from a deck of 52 cards, two cards are being chosen without being replaced. what will be the probability of the first one being

a king and second one being a seven
Mathematics
2 answers:
Alex3 years ago
7 0
I think the answer is 45
garik1379 [7]3 years ago
3 0
First  one is 4/ 52 and the second second one is 4/51. (I did not reduce).
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Four different roads from Town A to Town B, and three different roads run from Town B to Town C. Two roads also run from Town A
LekaFEV [45]

Answer:

196

Step-by-step explanation:

To solve this, I broke it down into two parts.

A. Number of routes going to Town C

4 x 3 + 2 = 14

B. Number of routes going back to Town A

3 x 4 + 2 = 14

From here, it is easy to see what to do. Since there are 14 routes going to Town C and 14 routes going back, the answer is 14 x 14 = 196.

5 0
3 years ago
Rewrite each equation in standard form. <br><br> 4 and 5 only
nekit [7.7K]

Answer:

4) 2=4x-3y

5) 51=21x-3y

Step-by-step explanation:

I gave it my best shot, I used fraction busters to cancel out the fractions and then I used simple math and distributive property. Hope it helps.

7 0
2 years ago
8x^2+18x-5=0 find the discriminant
Shalnov [3]
The formula for the discriminant is the square root of b^2 - 4ac

8x^2+18x-5= 0

a = 8, b=18, c= -5

Square root of 324 +160

Square root of 484 = 22                The discriminant is 22


7 0
3 years ago
In order to select new board members, the French club held an election. 70% of the 90 members of the club voted. How many member
Deffense [45]

Answer:

63 members.

Step-by-step explanation:

70% of the votes means that every 100 people, 70 went to cast their ballot, or 7 every 10. Now in the club there are 9 groups of 10 people, so 9x7 = 63 people

3 0
2 years ago
Anyone know this geometry question?
stiv31 [10]
If D is the midpoint of CE,  then CD must be equal to DE

Answer: C
8 0
3 years ago
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