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Oxana [17]
3 years ago
5

Rewrite the rational exponent as a radical

Mathematics
1 answer:
kondaur [170]3 years ago
5 0

Answer:

C OR D

Step-by-step explanation:

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A map has a scale of 1 centimeter = 40 kilometer. If the distance between Fort Worth and El Paso is 21.7 cm on a map , how many
ryzh [129]
Aloha!
 1 centimeter= 40 kilometers
The distance between the cities in centimeters is 21.7
 To get the answer into kilometers, you multiply.
So, 21.7 times 40 which is 868 kilometers.  
 To answer your question, the distance between Fort Worth and El Paso is 868 kilometers.
 I hope this helps!
  Adios!:)
5 0
3 years ago
Graph and check to solve the linear system <br> x+y=3<br> -2x+y=-6
Alenkinab [10]

Answer:

-x - y = -3

-2x + y = -6

-3x = -9

x = 3

3 + y = 3

y = 0

(3,0)

6 0
3 years ago
-3 +3(n+8)= 2(1 + 6n) - 8
lilavasa [31]

Answer:

3 =n

Step-by-step explanation:

-3 +3(n+8)= 2(1 + 6n) - 8

Distribute

-3 +3n +24 = 2 +12n -8

Combine like terms

21+3n = 12n -6

Subtract 3n from each side

21+3n-3n = 12n-3n -6

21 = 9n -6

Add 6 to each side

21+6 = 9n-6+6

27 = 9n

Divide each side by 9

27/9 = 9n/9

27/9 =n

Divide the top and bottom by 3

3 =n

4 0
3 years ago
Read 2 more answers
a school district requires all graduating seniors to take a mathematics test. This year, the rest scores were approximately norm
Klio2033 [76]
A score of 85 would be 1 standard deviation from the mean, 74.  Using the 68-95-99.7 rule, we know that 68% of normally distributed data falls within 1 standard deviation of the mean.  This means that 100%-68% = 32% of the data is either higher or lower.  32/2 = 16% of the data will be higher than 1 standard deviation from the mean and 16% of the data will be lower than 1 standard deviation from the mean.  This means that 16% of the graduating seniors should have a score above 85%.
3 0
3 years ago
Betty has a bag with 20 marbles in it. Some of the marbles are blue, some are green, and some are yellow.
Nezavi [6.7K]
392 / 500 double and take one decimal place to see percentage

52/500

56/500 e.g. 56*2 = 112 now take 1 decimal so it is 11.2%

now divide each by 20
5 0
3 years ago
Read 2 more answers
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