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andreyandreev [35.5K]
3 years ago
12

1. State whether each of the following questions can or cannot be used to collect statistical information. Provide an explanatio

n for each.
(a) How many hours of homework do you do?
Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0
The Answer would be 4
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(show the supposition, proof and conclusion)
larisa86 [58]

Answer:

Step-by-step explanation:

We are given that a and b are rational numbers where b\neq0 and x is irrational number .

We have to prove a+bx is irrational number by contradiction.

Supposition:let  a+bx is a rational number then it can be written in \frac{p}{q} form

a+bx=\frac{p}{q} where q\neq0 where p and q are integers.

Proof:a+bx=\frac{p}{q}

After dividing p and q by common factor except 1 then we get

a+bx=\frac{r}{s}

r and s are coprime therefore, there is no common factor of r and s except 1.

a+bx=\frac{r}{s} where r and s are integers.

bx=\frac{r}{s}-a

x=\frac{\frac{r}{s}-a}{b}

When we subtract one rational from other rational number then we get again a rational number and we divide one rational by other rational number then we get quotient number which is also rational.

Therefore, the number on the right hand of equal to is rational number but x is a irrational number .A rational number is not equal to an irrational number .Therefore, it is contradict by taking a+bx is a rational number .Hence, a+bx is an irrational number.

Conclusion: a+bx is an irrational number.

5 0
3 years ago
In the expression 3x + 5x – 3y + 5, which terms are “like terms”?
posledela

Answer: C

Step-by-step explanation: 3x and 5x both have x

8 0
2 years ago
Read 2 more answers
Isthere 100 inches in 8 foot
Ivan
No there are 96 inches in 8 feet because,
12 inches = 1 foot
12 x 8 = 96 
so there are 96 inchs in 8 feet
8 0
3 years ago
Read 2 more answers
Sandra has the following data:
Ludmilka [50]

The number "R" could be "A" and "D" because the range is 14 it cant be "B" or "C"

5 0
2 years ago
Read 2 more answers
Write y=-3/4 x-2 in standard form using integers.
jeyben [28]
Standard form is Ax + By = C

y = (-3/4)x - 2

Multiply both sides by 4.

4y = -3x - 8

Add 3x on both sides

3x + 4y = -8

Your final answer is 3x + 4y = -8.
8 0
2 years ago
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