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Alex
4 years ago
14

Which statement is always true?

Mathematics
2 answers:
navik [9.2K]4 years ago
7 0
D is the correct answer
grandymaker [24]4 years ago
4 0
The answer is D.

for A, it's possible for two irrational numbers to add to a rational number, but it's not always true.

for B, same situation, it could be, but it's not always true.

for C, adding two rational numbers will never result in an irrational number. so this one is wrong.

D is always true, and by process of elimination, it must be this one.
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The sum of the two decimals is 1 the product of these decimals is 0.25 the quotient of these two decimals is 1 what are the two
ExtremeBDS [4]
Since the quotient of the two decimal numbers is 1, that tells use that they are the same number.
Since the sum of the two numbers equals 1 and both numbers are the same, then the answer must be 1 divided by 2. or .5
the fractions would be 1/2 and 1/2

5 0
3 years ago
PLEASE HELP ME ASAP ITS TIMED
WINSTONCH [101]

Answer:

The solution is (2, 1).

All other ordered pairs do not work.

Step-by-step explanation:

-2x + 5y = 1

5x - 3y = 7

-10x + 25y = 5

10x - 6y = 14

19y = 19

y = 1

5x - 3(1) = 7

5x = 10

x = 2

(2, 1)

The solution is (2, 1).

All other ordered pairs do not work.

3 0
3 years ago
What is the remainder when (3x4 + 2x3 − x2 + 2x − 19) ÷ (x + 2)? (1 point) Select one: a. 0 b. 5 c. 10 d. 15
BlackZzzverrR [31]

Answer: C. / 10

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Using the algebraic expression 4n + 6, what is the greatest whole-# value of n that will give you a result less than 100?
Whitepunk [10]
A) 22
4 (22) + 6
88 + 6 = 94

B) 23
4 (23) + 6
92 + 6 = 98

C) 24
4 (24) = 96
96 + 6 = 102

So the answer is B because it is the highest value that can be put into the equation without raising the number to above 100
6 0
4 years ago
A population of voters contains 40% republicans and 60% democrats. it is reported that30% of the republicans and 70% of the demo
Blizzard [7]

To get the probability of selecting a person who is a democrat and is favour to the issue, let us first calculate for the portions in each party who is favour on the issue.

 

p (rep & favour) = 0.4 * 0.3 = 0.12

 

p (dem & favour) = 0.6 * 0.7 = 0.42

 

Therefore the total portions who are favour is:

p (favour) = 0.12 + 0.42 = 0.54

 

Hence the probability is:

P (dem & favour) = 0.42 / 0.54 = 0.7778 = 0.78

 

Therefore there is about 78% probability that the person selected who is favour to the issue is a democrat.

5 0
4 years ago
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