Christopher has $75 to buy two video games. if the video games cost $21 and $25, which equation represents the amount of money (v) christopher will have left? show work!
(a) 75 + 21 = v
(b) 75 - 25 = v
(c) 75 + 46 = v
(d) 75 - 46 = v

D is your answer

Step-by-step explanation:

You combine the costs of the two games, and take that away from what Christopher has.

21+25=46

75 is what Christopher has.

Subtract the 46 from the 75

75-46= the amount left over

So D

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!