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3 years ago

Does the commutative property work for subtraction and division? no yes

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

6 0

Answer:

NO!

Step-by-step explanation:

:-p

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Which equations are correct?

mote1985 [20]

5y4(2y5) = 10y9 CORRECT
5x3(6x4) = 30x7 CORRECT
3b3(-2b4) = 6b12 INCORRECT
4c4(3c2) = 12c8 INCORRECT

3 0

3 years ago

The initial outlay or cost is $1,000,000 for a four-year project. The respective future cash inflows for years 1, 2, 3 and 4 are

trasher [3.6K]

Answer:

The Payback Period from non discounted cash flows is 2 Years and 8 months

Step-by-step explanation:

With an initial outlay of $1,000,000

and Cash inflows for 4 years consecutively of $500,000 + $300,000 + $300,000 + $300,000

Pay back Period = the Period where Initial Outlay minus Cash Inflows equal Zero

= 1,000,000 - 500,000 (yr 1) - 300,000 (yr 2) - 200,000 (2/3 of Year 3) = 0

Pay back Period therefore is equal to 2 years & 8 months.

3 0

4 years ago

Calculate the interest rate when the principal is $300 and interest earned is $40 after 3

stich3 [128]

Answer:

4.4%

Step-by-step explanation:

solution:

principal (p) = $300

time(t) = 3 years

interest (I ) =$40

rate (r) = ?

we know that,

I = (PTR)/100*

OR, 40 = (300 *3 * R)/100

or, 40 = (900R)/100

or, 40 = 9R

or, 40/9 = R

or, R = 4.4%

Rate(r) =4.4%

3 0

3 years ago

A partial cylinder lies on its side. The bases are a 90° sector of a circle. What is the exact volume of the partial cylinder? C

murzikaleks [220]

The volume of any solid whose base is uniform is V = Ah. Since the base is a sector of a circle, it’s area is defined by the equation A = θ (r^2)/2, where θ is in radians.

90 degrees in radians is Pi/2. So the A = (PI) (r^2)/4

Therefore, V = [(PI) (r^2)/4]*h

8 0

3 years ago

In math what does real and not real mean?

rosijanka [135]

In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line. The adjective real in this context was introduced in the 17th century by René Descartes, who distinguished between real and imaginary roots of polynomials.

6 0

3 years ago