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gayaneshka [121]
3 years ago
6

Let a and b be irrational numbers. Is (ab)^2 always rational, sometimes rational, or never rational?

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
7 0
When you multiply 2 irrational numbers, the result is always irrational. This applies to squaring as well since it is still multiplying irrational numbers together (though the terms are the same)

Final answer: never rational
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Is the quotient of an integer divided by a nonzero integer always a rational number ? Explain.
Ber [7]
Yes. Examples: 1/1=1        2/4=2           1/2=0,5                    1/0=?                      

4 0
4 years ago
Type the correct answer in each box. Use numerals instead of words.
VARVARA [1.3K]

Answer:

see explanation

Step-by-step explanation:

f(x) = - (x + 1)(x - 3)(x + 2)

to find the zeros let f(x) = 0 , that is

- (x + 1)(x - 3)(x + 2) = 0

equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x - 3 = 0 ⇒ x = 3

x + 2 = 0 ⇒ x = - 2

the zeros are x = -1, 3 and x = - 2

to find the y- intercept let x = 0

f(0) = - (0 + 1)(0 - 3)(0 + 2) = - (1)(- 3)(2) = - (- 6) = 6

y- intercept is located at (0, 6 )

6 0
2 years ago
A pollster uses a computer to generate 500 random numbers and then interview the voters corresponding to those numbers. identify
Bond [772]

Answer: D. Simple Random Sampling

Step-by-step explanation: When selection is made or based on chance which is equal or the same for all members within a population. In the scenario described above, there is no prior shuffling, arrangement or segregation of members within the population into groups or subgroups, rather the interviewed voters were chosen at random directly from within the larger population based on equal chance. Therefore voters already have their numbers, then using a random number generator, voters whose number corresponds were interviewed is a clear scenario of simple Random Sampling.

4 0
3 years ago
Could someone help me with another word problem fir math ! Points and brainlest!
Diano4ka-milaya [45]

Answer:

I think 15

Step-by-step explanation:

Because there are 3 in every 20 and 20 goes into 100 5 times and 5×3=15

8 0
3 years ago
Read 2 more answers
The distance around a circular park is 88 yards. What is the area of the park?
Eddi Din [679]

C = 3.14 x 2r

88 = 3.14 x 2r

28 = 2r

14 = r

A = 3.14 x r^2

A = 3.14 x 14^2

A = 615

8 0
3 years ago
Read 2 more answers
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