Answer:
1. True
2. False
3. True
4. False
5. True
Step-by-step explanation:
1. For a real number a, a + 0 = a.
This is true, any number plus zero is that number.
2. For a real number a, a + (-a) = 1.
This is false. Adding a negative number is the same as subtracting that number. So a + (-a) = a - a = 0
3. For a real numbers a and b la-bl = |b-al.
This is true. Absolute value represents the distance between two numbers. This number can never be negative, therefore la-bl = |b-al.
4. For real numbers a, b, and c, a +(bº c) = (a + b)(a + c).
False. a + (b * c) = a + bc.
If you foil (a + b)(a + c) you will see its equal to a²+ab+ac+bc, which is definitely different than a + (b*c)
5. For rational numbers a and b when b# o, is always a rational number.
True, a rational number is one that can be written as a fraction with two integers. The quotient of two rational numbers can always be written as a fraction with integers.
You just do y=mx+b
m=slope
b=y-intercept
so than your answer would have to be y= -3/1x+2
this would be your answer because the y-intercept is 2 and your slope is -3 over -1 because you go down 3 and to the left 1 making both numbers be negatives.
Answer:
I fr think its C
Step-by-step explanation:
Answer: Kialani is being charge for $ 15.5 for the lily plant.
Step-by-step explanation: Let us assume Price of each orchid plant = $x.
And price for each lily plant = $y.
"8 orchid and 12 lily plants sell for $362".
Therefore,
8x +12y = 362 -------------------(1).
"12 orchid and 8 lily plants sell for $388."
Therefore,
12x+8y = 388 -------------------(2)
Now, let us solve the system of equations by elimination method.
According to elimination method, we need to make the coefficient of a variable same for both equations and subtract/add them to eliminate.
So, multiplying first equation by 12 and multiplying second equation by -8 and adding, we get
-12*(8x +12y = 362) => 96x +144y =4344
8(12x+8y = 388) => -96x -64y = -3104
________________
80y = 1240
Dividing both sides by 80, we get
80y/80 = 1240/80
y = 15.5.
<h3>
Therefore, Kialani is being charge for $ 15.5 for the lily plant.</h3>
Answer:
4
Step-by-step explanation:
