All categories

3 years ago

When the expression 10^2021 − 2021 is evaluated, the result is a very large number.

Mathematics

1 answer:

Dafna11 [192]3 years ago

6 0

Answer:

18,176

Step-by-step explanation:

Figure out an easier thing to do: 1000 - 2021 = 9,797.

Therefore, our answer will be like 9999999999999999999999997979. Out of all of these digits, there are only 2 that arent nines. We know the amount of digits since it's 10^2021 power. We will have one less since we are subtracting 2021. Therefore, 2020 digits in total. Now we know of those 2020 digits, 2 of them are 7, therefore 2018 of them are 9s. That means do 2018(9) + 2(7) = 14 + 18,162 = 18,176.

You might be interested in

Show your work if you can :)

meriva

I believe it’s just 61/100

5 0

3 years ago

John is building a fence around his home currently his fence measures 14 feet on each side but he wants to increase only the wid

nalin [4]

Answer:

The dimensions of rectangular fence are 14 feet and 20 feet.

Step-by-step explanation:

We are given the following in the question:

Length of rectangular fence = 14 feet

Width of fence = (14+x) feet

Area of rectangular field = 280 square feet

Area of rectangular field =

$A= \text{Length}\times \text{Width}$

Putting the values, we get,

$280 = 14(14+x)\\\\14 + x = \dfrac{280}{14}\\\\14 + x = 20\\x =20-14\\x = 6$

Thus, the dimensions of rectangular fence are 14 feet and 20 feet.

7 0

3 years ago

What is the surface area? 2 mm 2 mm 2 mm square millimeters

Alona [7]

Answer:

24 mm^2

Step-by-step explanation:

length x width x 6 sides in a cube

(2)(2)(6)=24

4 0

3 years ago

Partial quotients of 3 divided by 225

Bond [772]

The answer is 75 you could do long division and that will get you the answer.

6 0

3 years ago

What is the exact volume of the sphere? the radius is 4.8

Allisa [31]

V = 4/3πr³
V= 4/3π(4.8)³
V= 4/3π(110.592)
V=147.456π

5 0

3 years ago