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ioda
4 years ago
10

What’s the answer to number 12?

Mathematics
1 answer:
Tema [17]4 years ago
5 0

Answer:

3^3/5^3

The original is 3/5


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Which expressions are equivalent to the one below? Check all that apply. 21^x/3^x
satela [25.4K]

Answer:

<em>options:  A,C,E </em>are correct.

Step-by-step explanation:

We have to find the expression equivalent to the expression:

\dfrac{21^x}{3^x}

we know that: 21^x=(3\times7)^x\\\\21^x=3^x\times7^x

Hence,

\dfrac{21^x}{3^x}=\dfrac{3^x\times7^x}{3^x}=7^x-----(1)

A)   (\dfrac{21}{3})^x= 7^x  (same as(1))

Hence, option A is correct.

B)  7 ; which is a different expression from (1)

Option B is incorrect.

C) 7^x   (Same as (1))

Option C is correct.

D) (21-3)^x=18^x   which is a different expression from (1)

Hence, option D is incorrect.

E) \dfrac{7^x\times3^x}{3^x}=7^x   ; which is same as (1)

Hence, Option E is correct.

F) 3^x  ; which is not same as expression (1)

Hence, option F is incorrect.

5 0
4 years ago
Read 2 more answers
Please Help! Nathan receives a coupon in the mail for $10 off of a purchase of $100 or more. If he buys 3 pairs of board shorts
Trava [24]

Answer:   104.77 $ without coupon

                  94.77 $ with coupon


Step-by-step explanation:

25.99 Times 3 = 77.97 $

5.65 times 2 =  11.3 $

77.97+11.3=89.27 $

89.27 + 15.50 = 104.77 $

104.77 - 10 dollars of coupon = 94.77 $

4 0
3 years ago
A road sign says:
trasher [3.6K]

Based on the fact that the road sign's distance to Beaston is rounded to the nearest unit, the actual range of possible miles to Beaston is 9.50 ≤ x ≤ 10.49.

<h3>How far is it to Beaston?</h3>

Based on the fact that the miles to Beaston are rounded to the nearest mile, the first thing to do is to find the lowest and highest numbers that can be rounded to 10 miles.

The lowest number that you can round to 10 miles is:

= 9.5 miles

Because of the 0.5 attached to the 9 miles, you will round up to 10 instead of down to 9.

The highest number that you can round to 10 miles at two decimal places is 10.49 miles.

The reason this is the highest is that the 0.4 is the tenths number just before 0.5. This means that you round the whole number down to 10.

Assuming the distance to Beaston is x, the interval would then be:

9.50 ≤ x ≤ 10.49.

In conclusion, the range of miles of Beaston is  9.50 ≤ x ≤ 10.49.

Find out more on interval notation at brainly.com/question/27910869

#SPJ1

5 0
1 year ago
Hunter is riding his bike to the library which is 3 kilometers away and how many meters away is the library
Ainat [17]
It would be 3,000 meters away considering there are exactly 1,000 meters in 1 kilometer so 1,000 × 3 =3,000
4 0
3 years ago
Wallapak stores her malt beverages outside her house, on her back porch. On a very hot
Rina8888 [55]
37 ° C, because it's going 11 ° C every 15 min.
3 0
3 years ago
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