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Sedaia [141]
3 years ago
10

Rewrite the expression in the form 4^n4 n 4, start superscript, n, end superscript. (4^{6})(4^{-8})=(4 6 )(4 −8 )=(, 4, start su

perscript, 6, end superscript, ), (, 4, start superscript, minus, 8, end superscript, ), equals
Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0

Answer:

4^{-2}

Step-by-step explanation:

Given the expression:  (4^{6})(4^{-8})

The two terms have the same base 4. Therefore, we can apply the addition law of indices to simplify.

Addition Law of Indices: a^x \cdot a^y=a^{x+y}

Therefore:

(4^{6})(4^{-8})\\=4^{6+(-8)}\\=4^{6-8}\\=4^{-2}

Therefore:

(4^{6})(4^{-8})=4^{-2} in the form 4^n

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In 1983 the composition of pennies in the United States was changed due, in part, to the rising cost of copper. Pennies minted a
MA_775_DIABLO [31]

Answer:

<u>Solution for (a)</u>

Earlier Copper pennies are 22.

After 1983 pennies are 28.

Step-by-step explanation:

Pennies minted after 1983 weigh 2.50g

Earlier copper pennies weigh 3.11g

A roll of pennies contains 50 pennies.

A particular roll of pennies weighs 138.42g

Let the number of pennies minted after 1983 be x and;

Earlier copper pennies be 50 - x

2.50x + 3.11(50 - x) = 138.42

Opening the brackets gives;

2.5x + 155.5 - 3.11x = 138.42

Solving like terms together gives;

-0.61x = -17.08

Dividing through gives;

x = 28

So there are 28 after 1983 pennies and;

50 - 28 = 22 earlier pennies.


3 0
3 years ago
Simplify.<br><br> 4−16÷4+42<br><br> −16<br> 13<br> 15<br> 16<br>PLEASE HELP
jok3333 [9.3K]
PEMDAS. 16/4 = 4. 4+42 = 46. 46-4 = 42. Answer is 42!
3 0
3 years ago
Read 2 more answers
How do you do proofs
AnnyKZ [126]

Answer:

you can watch YT videos or search online. search: How to solve proofs. Also search up proof theorems. This will help you even more towards solving more complex proof problems.

Step-by-step explanation:

8 0
3 years ago
The length of a rectangle is 12 in. and the perimeter is 56 in. Find the width of the rectangle.
yuradex [85]

Answer:

W = 16 in

Step-by-step explanation:

P = 2L + 2W

56 = 2(12) + 2W

56 = 24 + 2W

56-24 = 2W

32 = 2W

W = 32/2

W = 16 in

Best regards

7 0
3 years ago
Can someone help please?????
frutty [35]
The answer is 13 you have to add the top and bottom
8 0
3 years ago
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