Ana Evangelista 10/18/21 11:33 PM = Review ...
Question 7, 3.1.39
b Statistics
HW Score: 100%, 16 of 16 points
Points: 1 of 1
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A realtor uses a lock box to store the keys to a house that is for sale. The access code for the lock box consists of four digits. The first digit cannot be 2 and the last digit
must be odd. How many different codes are available? (Note that is considered an even number.)
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The number of different codes available is 4500
(Type a whole number.)
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(for unit 3)
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correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!