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3 years ago

3x^2-12x+39=0 complete the square,and express answer in simplest form

Mathematics

1 answer:

babunello [35]3 years ago

5 0

Answer:

x =(4-√68)/2=2-√ 17 = -2.123

Step-by-step explanation:

im 90% sheer this is the answer.

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Calculate the mean for the three sets of data A=[1,2,3,4,5] B=[2,2,2,2,2] C=[5,7,3,11,14]

Verizon [17]

A = The mean would be 3

B = The mean would be 2

C = The mean would be 8

To calculate mean, you add up all the numbers in a set and then divide by the quantity of numbers in the set.

6 0

4 years ago

1/4x+8=3/8x+6 what is the answer or work to it I'm not that great at fractions.

nevsk [136]

Answer:

x = 16

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

3 0

4 years ago

Read 2 more answers

Noah has a coupon for 30% off at his favorite clothing store . He uses it to buy a hoodie . The regular price of a hoodie is $27

eimsori [14]

Answer:

$18.90

Step-by-step explanation:

The way to do percentages is actually pretty easy.

since it's taking 30% of you are left with 70%. Take 70 and divide it by 100. This gives you .70

Now what you do is you take the price of the time and multiply it by the .70

So 27.00 * .7 = 18.90

So Noah paid 18.90

5 0

3 years ago

Does anyone know this answer??

xxMikexx [17]

I believe by the first equation they are referring two a representation of the total amount of money made up by the two types of coins. I found this to be 0.05x + 0.10y = 3.50

In my work I solved for the amount of each coin- I assume this is what the final step of your problem entails. If you need any help understanding/ I misinterpreted something please feel free to comment and ask :)

#5c coins or x= 36

#10c coins or y= 17

4 0

2 years ago

The table shows the results of a class survey about pets. Suppose 53 students were surveyed About how many students have one pet

Andrei [34K]

Where is this so called table, its helpful with the question

5 0

3 years ago