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valentinak56 [21]
3 years ago
14

Which expression is equivalent to

Mathematics
2 answers:
Stella [2.4K]3 years ago
8 0

Answer:

A. 52+3

Step-by-step explanation:

52+3= 42 + 3 x 4

IRISSAK [1]3 years ago
6 0

Answer:

A. 52+3

Step-by-step explanation:

52+3= 42 + 3 x 4                      I hope this helps

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john rode 2 kilometers on his 6ike.his sister sally rode 3000 meters on her bike.who rode the farthest and how much farther did
artcher [175]
1 kilometer is 1000 meters.  Therefore, 2 kilometers is 2000 meters.  2000 is greater than 3000, so Sally rode farther by 1000 meter, or 1 kilometer.
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3 years ago
Total = $5.33 Tax rate = 8% How much was the item?
kow [346]

Answer:

42.64

Step-by-step explanation:

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What is the volume of a hemisphere with a diameter of 7.7 ft, rounded to the nearest tenth of a cubic foot?
Nady [450]

Answer: 119.57 cu. ft.

Step-by-step explanation:

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The width of a large, rectangular-shaped tree farm is 1.9 kilometers. The length of the farm is 4.4 kilometers. What are the bes
Vinvika [58]

Answer:

9 square kilometers

Step-by-step explanation:

Let's round the width to 2.0 kilometers, and round the length to 4.5 kilometers.

We know that area is length times width, so

A = lw

A = 2.0*4.5

<u>A = 9.0 square kilometers</u>

If we do this on the calculator, it's around 9.36 square kilometers, so our estimate was good.

6 0
3 years ago
Can someone please help me with this!!!
Volgvan

Step-by-step explanation:

I am not fully sure what your teacher is aiming for. it friends very much on what you were just discussing in class (which I don't know).

but the first thing coming to mind is a minus sign ("-"). squaring a negative number removed the minus and makes the result equal to squaring the same positive number.

just for the undoing the 1/2 :

that is, because a fraction as exponent specifies in its denominator the root to be calculated for the basic value or expression.

so, 1/2 means square root. and yes, square is the inverse function of a square root, and it "undoes" the square root.

in exponent calculation it just means that for exponent 1 to the power of exponent 2 we simply multiply both exponents. and so, 1/2 × 2 = 1

FYI - the numerator still represents an original "to the power of" operation.

so, e.g. 3/2 would mean put the basis to the power of 3 and then do the square root of that result. or the other way around. these operations are commutative (the sequence does not matter).

4 0
3 years ago
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