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masha68 [24]
3 years ago
13

Somebody answer this for me please

Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0
X // Y,    Y //  Z,   

By inference  X //  Z


The third option.
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14x − 5 − 8x = 1 A) 0 B) 1 C) 3 D) 5
spin [16.1K]
B because 14-5=9 and 9-8= 1
8 0
3 years ago
Let a be a rational number and b be an irrational number. Which of the following are true statements?(there is more than 1 answe
kramer
<span>A.) the sum of a and b is never rational.
This is a true statement. Since an irrational umber has a decimal part that is infinite and non-periodical, when you add a rational number to an irrational number, the result will have the same infinite non periodical decimal part, so the new number will be irrational as well.

</span><span>B.) The product of a and b is rational
This one is false. Zero is a rational number, and when you multiply an irrational number by zero, the result is always zero.

</span><span>C.) b^2 is sometimes rational
This one is true. When you square an irrational number that comes from a square root like </span>\sqrt{2}, you will end with a rational number: ( \sqrt{2} )^{2}=2, but, if you square rationals from different roots than square root like \sqrt[3]{2}, you will end with an irrational number: \sqrt[3]{2^{2} } = \sqrt[3]{2}. 

<span>D.) a^2 is always rational
This one is false. If you square a rational number, you will always end with another rational number.

</span><span>E.) square root of a is never rational
</span>This one is false. The square root of perfect squares are always rational numbers: \sqrt{64} =8, \sqrt{16} =4,...

F.) square root of b is never rational
This one is true. Since the square root of any non-perfect square number is irrational, and all the irrational numbers are non-perfect squares, the square root of an irrational number is always irrational.

We can conclude that given that<span> a is a rational number and b be an irrational number, A, C, D, and F are true statements.</span>
4 0
3 years ago
Please I need help with this question and also the working
pychu [463]
Okay. This is my answer

8 0
2 years ago
Jack bought 3 protein bars for a total of $4.26 which equation could be used to find the cost c on dollars of each protein bar
kramer
Answer: (C)

<u>Solution:</u> 
Jack bought 3 bars for $4.26 thus the cost of each bar can be defined as:

c =  \frac{4.26}{3} ⇒ 3c = 4.26
3 0
3 years ago
Explain 2 methods other than looking for intersections on the graph itself that will locate all intersections
GaryK [48]
Finding the zeros using factoring and also the discriminat
6 0
3 years ago
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