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lupitaca888
11.07.2019 •
Mathematics
Melanie and melissa are sharing the cost of a pizza party. melanie is buying 2 pizzas for $14.00 each and 3 orders of garlic bread for $4.00 each. melissa is paying $21.00 for napkins, paper plates, and sodas. she is bringing the dessert which costs $8.00 to make. how much more money is melanie spending than melissa?
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Ответ:
Melissa:21+8=29
40-29=11
So the answer is $11
Ответ:
4x3=12
28+12=40
21+8=29
40-29=11
Ответ:
Step-by-step explanation:
f(4) = 42 + 5 =21, f(-10) = (-10)2 +5 = 105 or alternatively f: x → x2 + 5.
The phrase "y is a function of x" means that the value of y depends upon the value of x, so:
y can be written in terms of x (e.g. y = 3x ).
If f(x) = 3x, and y is a function of x (i.e. y = f(x) ), then the value of y when x is 4 is f(4), which is found by replacing x"s by 4"s .
If f(x) = 3x + 4, find f(5) and f(x + 1).
f(5) = 3(5) + 4 = 19
f(x + 1) = 3(x + 1) + 4 = 3x + 7