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Liula [17]
3 years ago
11

Simplify the expression by combining like terms, if possible. 4a^2+2a+4a^2-5

Mathematics
1 answer:
Sati [7]3 years ago
6 0

Answer:

8a2+2a−5

Step-by-step explanation:

The 2 next to 8a means power of 2. Just wanted to clarify.

Hope this helps! Have a nice night (^-^)

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A combination lock requires a user to select three numbers to unlock it, where all three numbers are between 1 to 30, inclusive,
Sonbull [250]

Answer:

\frac{1}{270}=0.00370

Step-by-step explanation:

As the numbers are only between 1 and 30

Total number of possible combinations = 30×30×30 = 27000

If there are 100 attempts then

\text{P (someone guesses correct)}=\frac{\text{Number of attempts}}{\text{Total number of possible combinations}}\\\Rightarrow \text{P (someone guesses correct)}=\frac{100}{27000}\\\Rightarrow \text{P (someone guesses correct)}=\frac{1}{270}=0.00370

∴ Probability someone can guess the correct combination given 100 attempts is \mathbf{\frac{1}{270}=0.00370}

5 0
3 years ago
HELP ME WITH THE EQUATION!!! IF ITS CORRECT ILL GIVE BRAINIST
Andrei [34K]

Answer:

The equation would be F = C - 3m

Step-by-step explanation:

Based on the chart, the fee for each movie you rent costs 3 dollars. The F is the monthly membership fee, the m is the number of movies rented, the 3 is the fee for each movie rented, & the C is the cost.

I really hope that it helps.

3 0
3 years ago
HOMEWORK HELP NEED TO KNOW
Thepotemich [5.8K]
5 is b because 3/6 is equivalent to 1/2
6 is a because 1/6 is less than half
5 0
4 years ago
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glenn swims 2/3 miles on monday, 3/4mile on wednesday, and 5/6 miles on friday. What is the total of distance glenn swims on tho
Archy [21]

Answer:

She swam a total distance of 2  1/4 miles in those three days.

Step-by-step explanation:

Okay, so- The first thing you need to do is make all denominators equal to make these fractions able to be added together. So, I made all denominators 12. (Tell me if you don't know how to make them all the same denominator, and I'll be happy to help!)

<u>2/3  =  8/12   </u>

<u>3/4  =  9/12 </u>

<u>5/6  =  10/12</u>

Then, I added the numerators together. Like this:

<u>8 + 9 + 10 = 27 </u>

So, this would be:

<u>27/12</u>

Lastly, I changed this improper fraction to a mixed number. I multiplied the denominator twice because it looked like it would be closest to 27 without going over.

<u>12 * 2 = 24 </u>

<em>The "2" will be the whole number in the mixed fraction.</em> Now, I'm going to subtract 24 from the numerator.  

<u>27 - 24 = 3 </u>

<u>2 3/12</u>

After simplified, the fraction will be:

2 1/4  

<h3>Hope this helps! Let me know if you need help with something else or if you have questions about this problem !</h3>

8 0
3 years ago
Fill in the blank <br><br><br><br><br> …………………..
Mumz [18]
So uhh I’m so sorry to tell you but I don’t know how to do math myself and I just need points so I’m answering this.. but I’m sure If you just cheat off a smart person in your class you’ll be fine. If you need any tips on how to cheat lmk I’ll gladly help
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2 years ago
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