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Effectus [21]
3 years ago
8

Question 2: Select the property shown

Mathematics
1 answer:
MAXImum [283]3 years ago
3 0

Answer:

1. option C, i.e., symmetric property.

2. option B, i.e., Integer

3. option D, i.e., zero product property

Step-by-step explanation:

Symmetric property: According to this property it a=b the b=a.

By symmetric property, we can say that, if y=7 then 7=y.

Therefore, the correct option is C, i.e., symmetric property.

Closure property: According to this property, if a∈S and b∈S, then a*b∈S.

Subtraction of natural numbers is not always natural.

Subtraction of integers is always integer.

Subtraction of irrational number is not always irrational number.

Subtraction of odd number is always even.

Therefore, the correct option is B, i.e., Integer.

Given statement is (a-b)*0=0.

According to zero product property if ab=0, then a=0 or b=0.

So, the given statement is true by zero product property.

Therefore, the correct option is D, i.e., zero product property.

You might be interested in
Which of the following represents a Type I error for the null and alternative hypotheses H0:μ≤$3,200 and Ha:μ>$3,200, where μ
Nuetrik [128]

Answer:

Option a) Type I error would occur if we reject null hypothesis and conclude that the average amount is greater than $3,200 when in fact the average amount is $3,200 or less.        

Step-by-step explanation:

We are given the following information in the question:

H_{0}: \mu \leq \$3,200\\H_A: \mu > \$3,200

where μ is the average amount of money in a savings account for a person aged 30 to 40.

Type I error:

  • Type I error is also known as a “false positive” and is the error of rejecting a null  hypothesis when it is actually true.
  • In other words, this is the error of accepting an  alternative hypothesis when the results can be  attributed by null hypothesis.
  • A type I error occurs during the hypothesis testing process when a null hypothesis is rejected, even though it is correct and should not be rejected.

Thus, in the above hypothesis type  error will occur when we reject the null hypothesis even when it is true.

Option a) Type I error would occur if we reject null hypothesis and conclude that the average amount is greater than $3,200 when in fact the average amount is $3,200 or less.

3 0
3 years ago
What is proportion of 3 over 6 =x over 8 find the value of x?
andre [41]
3/6= x/8 cross multiply 6x=24 divide by 6 x=4 hope this helps
5 0
4 years ago
Read 2 more answers
How to solve 8x+y=23<br> -10x-y=-27
yuradex [85]
<h2>Hey there!</h2>

<h3>At first we have find the value of "y",</h3>

<h3>Finding the value of "y"</h3>

Here,

8x + y = 23 - 10x - y = - 27

10(8x + y) = 23 × 10 8 (- 10x - y) = - 27 × 8

80x + 10y = 230 ---> (i) - 80x - 8y = - 216 ----> (ii)

<h3>By elimination method,</h3>

<h3>Equation (i) - (ii)</h3>

(80x + 10y) - (-80x - 8y) = 230 - (-216)

=> 80x + 10y + 80x + 8y = 230 + 216

=> 10y + 8y = 446

=> 18y = 446

=> y = 446/18

=> y = 24.7

<h3>Putting the value of "y" in Equation (i)</h3>

80x + 10y = 230

=> 80x + 10 × 24.7 = 230

=> 80x + 247 = 230

=> 80x = 230 - 247

=> 80x = -17

=> x = -17/80

=> x = - 0.21

<h3>Therefore the values of "x" and "y" are</h3>

x = -0.21 and y = 24.7

<h2>Hope it helps </h2>

5 0
3 years ago
8y2 - 4y+1/2y-1<br> Must be in quotient+ remainder/divisor
Anon25 [30]

Answer:

idk sorry m8

Step-by-step explanation:

7 0
3 years ago
Help :( plz plz plz plz plz plz
mylen [45]
16/81. I hope this helps

7 0
3 years ago
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