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4 years ago

Which mathematical property is demonstrated? 40 • (25 • 74) = (40 • 25) • 74

Mathematics

2 answers:

Anestetic [448]4 years ago

5 0

Answer:

Step-by-step explanation:

hope it helps

timofeeve [1]4 years ago

3 0

Well we know it can't be A nor C because we are doing multiplication.
Now you have to understand that you are just changing the order of the numbers.

The correct answer would be......
D

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What is the scientific notation of 6,780?

ss7ja [257]

6.78*10^3 (10 to the third power)

5 0

4 years ago

A lunch menu has a 4-piece lunch special which consists of a sandwich, soup, dessert and drink. They offer the following choices

ryzh [129]

Answer:

There are 160 possible 4-piece lunch special meal.

Step-by-step explanation:

The lunch menu has a 4-piece lunch special which consists of a sandwich, soup, dessert and drink.

The available options for the sandwiches, soups, desserts and drinks are:

Sandwich: chicken, cheese and tomato, tuna, ham and lettuce, turkey

Soup: tomato, chicken noodle, vegetable

Dessert: ice-cream, piece of cake

Drink: tea, coffee, Coke, Sprite

So, the number of options are:

n (Sandwich) = n (A) = 5

n (Soup) = n (B) = 4

n (Dessert) = n (C) = 2

n (Drink) = n (D) = 4

There are 5 ways to select a sandwich, 4 ways to select a soup, 2 ways to select a dessert and 4 ways to select a drink.

The total number of possible 4-piece lunch special is:

Total number of 4-piece lunch special = n (A) × n (B) × n (C) × n (D)

$=5\times4\times2\times4\\=160\\$

Thus, there are 160 possible 4-piece lunch special meal.

8 0

3 years ago

What is 6times40///////////////////////

andreev551 [17]

Answer:

the answer is 240

5 0

3 years ago

Read 2 more answers

What is the derivative of this function: F(x)=(5e^4x)+(e^-x^6)

Fed [463]

Answer:

$\dfrac{dF(x)}{dx} =20e^{4x}-6x^5e^{x^{-6}}$

Step-by-step explanation:

The derivative of $F(x)$ is calculated as follows:

$\dfrac{dF(x)}{dx}=\dfrac{d}{dx} [(5e^{4x})+(e^{-x^6})]$

$\dfrac{dF(x)}{dx}=\dfrac{d}{dx} [(5e^{4x})]+\dfrac{d}{dx} [(e^{-x^6})]$

$\dfrac{dF(x)}{dx}=5\dfrac{d}{dx} [(e^{4x})]+\dfrac{d}{dx} [(e^{-x^6})]$

using the chain rule we find that

$\dfrac{d}{dx} [(e^{4x})]= \dfrac{d}{d(4x)} [(e^{4x})]+ \dfrac{d}{dx} [4x] = 4e^{4x},$

$\dfrac{d}{dx} [(e^{-x^6})] = \dfrac{d}{d(-x^6)} [(e^{-x^6})]+\dfrac{d}{dx} [(-x^6})]= -6x^5e^{-x^6};$

therefore,

$\dfrac{dF(x)}{dx}=5\dfrac{d}{dx} [(e^{4x})]+\dfrac{d}{dx} [(e^{-x^6})] =5(4e^{4x})-6x^5e^{x^{-6}}$

$\boxed{\dfrac{dF(x)}{dx} =20e^{4x}-6x^5e^{x^{-6}}}$

8 0

3 years ago

A class sold tickets to their school play. Each of the 23 students in the class sold 4 tickets. The cost of each ticket was $7

mafiozo [28]

Answer:

$644 if you want the cost of all the tickets

Step-by-step explanation:

23x4=92

92x7=644

7 0

3 years ago