Answer:
Step-by-step explanation:
It asks for the common set of A and B.
<u>There only one element common to both the given sets:</u>
- A={2,3,5,7} and B={2,4,6,8} ⇒ A∩B = {2}
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.
The linear function that models the situation is given by:
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A linear function for the cost C of taking care of p puppies has the following format:
In which:
- C(0) is the fixed cost.
- a is the slope, which is the cost per puppy.
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- With 6 puppies, it costs $172. With 10 puppies, it costs $220. The slope is given by the <u>change in the output(cost) divided by the change in the input(number of puppies)</u>, thus:
Thus:
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The cost of $172 with 6 puppies means that when p = 6, C = 172, and we use this to find C(0).
Thus, the linear model is:
A similar problem is given at brainly.com/question/16302622
Answer:
x=5
Step-by-step explanation:
7 times x
7 times 2
7x-14= 21
14+14= 21+ 14
7x=35
x=5
7 times five equals 35
