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RSB [31]
3 years ago
9

Can i get help determining the value of x​

Mathematics
1 answer:
anastassius [24]3 years ago
8 0

Answer:

i think its the first one

Step-by-step explanation:

SORRY if you get it wrong

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Attendance at the big game was only 80% of last years attendance, but that still means 12,000 people showed up. how many people
astraxan [27]
12000*100/80=15000 coz 12000 is 80% that's why you divide by 80 and multiply by 100
8 0
2 years ago
0 = -1/14 x^2 + 4x +5<br><br> I need to solve for x but I don't get it, PLEASE EXPLAIN AND HELP!!
MariettaO [177]
Any time you have a fraction within an equation, multiply the entire equation by the denominator to clear the fraction. Since the lead term is negative, we can multiply that away as well
(-14) (0=-1/14x²+4x+5)      [now distribute]

0=x²-56x+70      [try to factor into binomials first]
Since 70 only has prime factors of 2·5·7, there is no combination which equals (-56). Use the quadratic formula, or complete the square. I'll use quadratic:

x=<u>-b+/-√(b²-4ac)</u>
            2a
a=1, b=(-56), c=70

x= <u>-(-56)+/- √((-56)²-4(1)(70)</u>
                  2(1)
x= <u>56+/- √(3136-280)
</u>               2
<u />x=<u>56+/-√(2856)</u>
             2
x=<u>56+/-√(2³·3·119)</u>
               2

x=<u>56+/-2√(714)</u>
             2

x=28+√714; x=28-√714



5 0
2 years ago
Please help thank you
Shkiper50 [21]

Answer:

x = 0.25

Step-by-step explanation:

When logs are added together, they are actually multiplied and then the logs taken of the product.

That sentence is actually correct, but you are going to have to read it a couple of times. You might understand it if I actually just solve the problem.

ln(2x) + ln(2) = 0              Combine the two subjects to make 1 ln.

ln (2)(2x) = 0                    Now take the antilog

ln(4x) = 0

antilog ln(4x) = e^0         e^0 = 1

4x = 1                                See your last problem.

x = 1/4

Now the question is "What's the answer?" It might be 1/4 but I doubt it. A better choice would be x = 1/4 or x = 0.25

I'd try the last one first.

6 0
3 years ago
Helpppp plssssss anyoneeeeee
Hatshy [7]

Answer:

D. y=3x+4

This is the correct answer

5 0
2 years ago
Shaul made a password that consists of one letter followed by two digits. The two digits are different. How many possible passwo
Novay_Z [31]
278. I got It By Counting The Letters On Meh Keyboard As Many Times As The #'s On My Keyboard.
6 0
2 years ago
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