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nikklg [1K]
3 years ago
6

I need help please! Step by step explanation

Mathematics
1 answer:
Alik [6]3 years ago
6 0

Answer:7 %

Step-by-step explanation:

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Twenty-eight people in student council are running for the offices of president and vice-president. In how many different ways c
gulaghasi [49]

Answer: 756

Step-by-step explanation:

The president can be elected in 28 different ways. After a student is elected president, there are 27 students left to elect a vice president from. So there are 28 x 27 = 756 different arrangements.

8 0
3 years ago
For what values of k does the graph of y=-2x^2+5x+k not cut the x axis
goldenfox [79]
The answer is 4 because there r three 3 2s
6 0
3 years ago
Please helpppppppppppppp
Helen [10]

Answer:

90/23

Step-by-step explanation:

First, you want to start in the parentheses. 5-6=-1, then multiply it by -2. Since a negative multiplied by a negative is a positive, -2*-1=2. -3^2=-9. 2+8=10. Then -9 times 10= -90. Then, we move on to the bottom. 5--2=7. 4^2=16, and -2(2)=-4. So -5(7) + 16-4=-23. Now, the equation should look like this, -90/-23. Put the negatives together and you get 90/23.

6 0
3 years ago
sue stacked one box onto another. the bottom had the height of 2 1/3 feet and the top box had the height of 3 2/3 feet. how tall
Scilla [17]
Height of bottom box : - 2  \frac{1}{3} => 7/3
Height of top box : - 3  \frac{2}{3} => 11/3

Thus, height of two boxes =

\frac{7}{3} +   \frac{11}{3} =  \frac{18}{3} => 6ft

Happy to help chodini!
3 0
3 years ago
Read 2 more answers
Evaluate the expression 2x-y for x=17 and y=12
mafiozo [28]

Answer:

The answer is 22.

Step-by-step explanation:

1) Replace the x with 17, and the y with 12.

2) 2(17) - 12

3) 2x17 = 34

4) 34 - 12 = 22

6 0
3 years ago
Read 2 more answers
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