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notsponge [240]
3 years ago
13

Noah reads the problem, “Evaluate each expression, giving the answer in scientific notation.” The first problem part is: 5.4×105

+2.3×104. Noah says, “I can rewrite 5.4×105 as 54×104. Now I can add the numbers: 54×104+2.3×104=56.3×104.”
Mathematics
1 answer:
muminat3 years ago
8 0

Answer:5.4×105+2.3×104.

Step-by-step explanation:

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The 100th term of 60, 100, 140, ... is and <br><br> no it is not 5010 that's wrong
Lady bird [3.3K]

Answer:

4000 sorry if its wrong i did the math it should be right

Step-by-step explanation:

HOpe i helped

4 0
3 years ago
What is the answer to (12^2)^3 times 12^-4<br> and 12^7 times 12^-5 over 12^2
raketka [301]

Answer:  12² = 144

12² ÷ 12² = 1

Step-by-step explanation:

I'll go through it backwards: 12^7 times 12^-5  You subtract the -5 from 7 in the exponents to get 12^2.  12^2 divided by 12^2  is 1.

(12^2)^3 works out to 12^6 because you multiply the exponents when its a power raised by a power. Then you subtract the 4 from the 6 (or add -4 +6) to get 12^2.

That means 12 squared, same as 12 times 12

That's 144.

If you have to multiply the two parts together, It's 144 times 1.

If "and" means "add them together"-- YOU KNOW!

7 0
3 years ago
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8 0
3 years ago
Which expression correctly represents eight times the difference of 4 and a number
expeople1 [14]

Answer:

The expression for two times the difference of 4 and a number  is

8(4-d)

Step-by-step explanation:

To Find:

Write an expression for Eight times the difference of 4 and a number.

Solution:

Let the Unknown number be 'd'

Difference of 4 and d                        =      ( 4 - d )

So One Time Difference of 4 and d =  1× ( 4 - d )

∴   Two Times Difference of 4 and d = 2× ( 4 - d )

∴   Eight Times Difference of 4 and d = 8× ( 4 - d )

The expression for Eight times the difference of 4 and d. will be

8(4-d)

The expression for Eight times the difference of 4 and a number  is

8(4-d)

6 0
3 years ago
Alex and Leandro purchase two matinee movie tickets. A matinee ticket costs , a drink costs , and a bag of popcorn costs . Defin
REY [17]

Answer:  (2p + 1.5d)  + (5*(2)) = T

Step-by-step explanation: (2p + 1.5d)  + (5*(2)) = T

Since there are no costs, i'll make up my own uwu;

Matinee = $5

Popcorn = $2

Drink = $1.5

T = total

(2p + 1.5d)  + (5*(2)) = T

2p ($2 for each bag of popcorn - p represents popcorn)

1.5d ($1.5 for each drink, - d represents drinks)

5*2 ( 5 * 2 because we are already given the amount of matinee tickets they buy.

5 0
3 years ago
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