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liraira [26]
3 years ago
12

Simplify (3a4 – 2a2 + 5a – 10) – (2a4 + 4a2 + 5a – 2). A. a4 + 4a2 + 10a – 12 B. 5a4 + 4a3 + 3a2 + 10a – 12 C. a4 – 6a2 – 8 D. a

4 + 2a2 + 10a – 12
Mathematics
1 answer:
kirill115 [55]3 years ago
6 0
A^4-6a^2-8 is the write answer 
option c 
just open the brackets and then add and subtract
according to PEMDAS  rule  or  DMAS
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What number is 31 less than fifty two million and four?
Lesechka [4]
You need to subtract: 
       52,000,000
  -                  31
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       51999969



5 0
3 years ago
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My friend sets out walking at a speed of 3 miles per hour. I set out behind her 5 minutes later at 4 miles per hour.
MissTica
3 m/h=0.05m/m
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3 years ago
Gale wants to compare the cost of the events.
Lera25 [3.4K]

#a

The table represents all possibilities.

  • Yes its possible .
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8 0
2 years ago
Given m||n, find the value of x.<br> t<br> 140°<br> What is the value of x in this problem
Korolek [52]

Answer:

x = 140

Step-by-step explanation:

x=140°

m || n

3 0
2 years ago
I am so confused plz no spam answers or I will report them and there are not any answer choices
GalinKa [24]
This problem is a multi step problem. All you have to do is break it down into parts to make it easier. We can start by finding the diameter of the inner circle. 

1. circumference = πd   (Since the circumference is given as 44, and we know to use 22/7 for π, divide 44 by 22/7 to get d.) 
         44 / 22/7 = about 14.0 when rounded

2. Now add +8 to the 14 since we know that there are 4 ft. on both sides of the small inner circle. 
         14 + 8 = 22

3) The last step gave us the diameter of the bigger outer circle. Now, we have to plug in the 22 for d in the formula for circumference to find the circumference of the outer circle. 
         c = πd  →  c = 22 * 22/7 = 484/7 (484/7 = about 69 when rounded as a decimal)

4) The last step now is to subtract the circumferences, since the problem was asking for how much greater the outer circle's circumference is than the inner circle. 
       69 - 44 = 25

Your answer should be about 25 ft.

********** Note the answer they are looking for may be slightly different depending on whether they were looking for a fraction or decimal answer and where they rounded. ********************************************************



6 0
4 years ago
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