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Klio2033 [76]
3 years ago
13

The amount of money in a bank account increased by 15.8% over the last year. If the amount of money at the beginning of the year

is represented by n, which expression represents the amount of money in the bank account after the increase?
Mathematics
1 answer:
Lostsunrise [7]3 years ago
5 0

Answer:

The expression represents the amount of money in the bank account after the increase is: x=1.158n.

Step-by-step explanation:

With the information provided, you can say that the amount of money in the bank after the increase would be equal to multiplying the amount at the beginning of the year for the result of adding up 1 plus the percentage of the increase, which would be:

x=n*(1+0.158)

x=n*1.158

x=1.158n, where:

x is the amount of money in the bank account after the increase

n is the amount of money at the beginning of the year

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Answer:

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Step-by-step explanation:

Given:

V_0 = < 130 , 0 , -3 > ft / s

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S_plate = < 60 , z , 0 > ft

S_0 = < 0 , 6 , 0 > ft

The time taken t by the ball to reach home plate:

S_x, plate = S_o,x + V_o,x * t

60 = 0  + 130*t

t = 60 / 130

t = 0.4615 s

The distance traveled by the ball in y-direction when it reaches home plate at t = 6 / 13 s:

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8 0
2 years ago
What two numbers add to 15 and multiply to negative 312?
natima [27]
X + y = 15
xy = -312

     x + y = 15
x - x + y = -x + 15
           y = -x + 15

                                           xy = -312
                               x(-x + 15) = -312
                           x(-x) + x(15) = -312
                                 -x² + 15x = -312
                       -x² + 15x + 312 = 0
           -1(x²) - 1(-15x) - 1(312) = 0
                    -1(x² - 15x + 312) = 0
                                  -1              -1
                          x² - 15x + 312 = 0
                          x = -(-15) ± √((-15)² - 4(1)(312))
                                                  2(1)
                          x = 15 ± √(225 - 1248)
                                               2
                          x = 15 ± √(-1023)
                                         2
                          x = 15 ± 31.984i
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              x + y = 15
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   - 23.492        - 23.492
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              (x, y) = (23.492, -8.492)

                      or

              x + y = 15
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   + 8.492         + 8.492
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Answer:

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b.Given the probability of success is 0.74 for a novice and that the number of pairs, n=6:

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