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mash [69]
3 years ago
7

A researcher read a 12-page article in 30 minutes. On

Mathematics
1 answer:
neonofarm [45]3 years ago
3 0
Answer: 2.5 minutes

Explanation: Divide the time by the amount of pages to find the amount of time spent of each page. (30/12=2.5)
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What is the quotient ? a-3/7 divided by 3-a/21
LUCKY_DIMON [66]
Final result :  -3



Step by step solution :Step  1  :            3 - a Simplify   —————             21  Equation at the end of step  1  :  (a - 3)   (3 - a)  ——————— ÷ ———————     7        21   Step  2  :            a - 3 Simplify   —————              7  Equation at the end of step  2  :  (a - 3)   (3 - a)  ——————— ÷ ———————     7        21   Step  3  :         a-3      3-a Divide  ———  by  ———          7       21 
 3.1    Dividing fractions 
To divide fractions, write the divison as multiplication by the reciprocal of the divisor :
a - 3     3 - a       a - 3        21  —————  ÷  —————   =   —————  •  ———————  7        21           7       (3 - a)
 3.2    Rewrite   (3-a)    as  (-1) •  (a-3) Canceling Out : 3.3    Cancel out  (a-3)  which now appears on both sides of the fraction line.
Final result :  -3
4 0
3 years ago
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The circumference of a circle is 18.84 yards. What is the circle's diameter?
zhannawk [14.2K]

Answer:

The diameter is 6 yards.

Step-by-step explanation:

2pir=18.84

pir=9.42

r=3(nearest whole number)

d=2r

d=2*3

d=6

Therefore, the diameter is 6 yards.

5 0
3 years ago
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What is the surface area of the right prism below?
-Dominant- [34]

Answer:

120 sq. units

plus them all and add 100

3 0
3 years ago
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(-8x + 1) – (8x – 1) =<br> ??
Bad White [126]

Answer:0

Step-by-step explanation:

6 0
3 years ago
Find the domain of the function. <br><br> y = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%2B%201" id="TexFormula1" title
Step2247 [10]

Answer:

[0, infinity)

Step-by-step explanation:

A square root can only use positive numbers, otherwise it becomes imaginary. A function needs to be real to output real values. Therefore, the domain is everything from 0 onwards.

5 0
3 years ago
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