2 years ago

Answer this and I’ll give more points!!

Mathematics

1 answer:

Igoryamba2 years ago

8 0

Answer:

(i) a∗b=a−b

Check commutative is

a∗b=b∗a

a∗b=a−b

b∗a=b−a

Since, a∗b



=b∗a

∗ is not commutative.

Check associative

∗ is associative if

(a∗b)∗c=a∗(b∗c)

(a∗b)∗c=(a−b)

∗

c=(a−b)−c=a−b−c

a∗(b∗c)=a∗(b−c)=a−(b−c)=a−b+c

Since (a∗b)∗c



=a∗(b∗c)

Step-by-step explanation:

You might be interested in

Help, what is the answer

sp2606 [1]

The answer is d as in dog

4 0

3 years ago

Read 2 more answers

Find the value of y in the equation attached to this question

dlinn [17]

Answer:

y = 4

Step-by-step explanation:

1) Simplify $3^5$ to 243.

${9}^{y}=\frac{243\times {9}^{6}}{{27}^{3}}$

2) Simplify ${9}^{6}$ to 531441.

${9}^{y}=\frac{243\times 531441}{{27}^{3}}$

3) Simplify $243\times 531441$ to 129140163.

${9}^{y}=\frac{129140163}{{27}^{3}}$

4) Simplify ${27}^{3}$ to 19683.

${9}^{y}=\frac{129140163}{19683}$

5) Simplify $\frac{129140163}{19683}$ to 6561.

${9}^{y}=6561$

6) Convert both sides to the same base.

$9^y=9^4$

7) Cancel the base of 9 on both sides.

$y=4$

Cheers,

ROR

3 0

2 years ago

Read 2 more answers

Hari earns Rs 4300 per month. He spends 80% from his income. How much amount does he save in a year?

Lelu [443]

Answer:

Hari saves $ 10,320 in a year.

Step-by-step explanation:

Given that Hari earns $ 4300 per month, and he spends 80% from his income, to determine how much amount does he save in a year, the following calculation must be performed:

100 - 80 = 20

4300 x 0.20 x 12 = X

860 x 12 = X

10320 = X

Therefore, Hari saves $ 10,320 in a year.

8 0

2 years ago

Julie rented a car for one day from a company that charges $80 per day plus $0.15 per mile driven. If she was charged a total of

Studentka2010 [4]

Answer: 5

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the value of x in equation 0.2(x+1)+ 0.5x = - 0.3(x-4)

Greeley [361]

Answer: x=1

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers