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siniylev [52]
1 year ago
13

80

Mathematics
1 answer:
dalvyx [7]1 year ago
3 0

Answer:

38 is the correct solution

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50 POINTS:A chess competition has eliminations each round. The table below shows the number of players in each of the first 5 ro
Ket [755]
<span>Round    (x) 1      2     3    4   5 
Players f(x) 256  128  64  32  16

16-256 / 5 - 1 = -240/4 = -60

</span><span>A.) −60; on average, there was a loss of 60 each round. </span>
7 0
3 years ago
simplify the following expression: (x+7/4x) + (5/x-8) I also attached a photo of the problem if you get confused on how I typed
Gnoma [55]

Answer:

\frac{x^{2}  + 19x - 56}{4 {x}^{2}   - 32x}

Step-by-step explanation:

Start by making the denominators of both fraction the same. This can be done by multiplying one fraction's denominator by the other.

After simplifying and combining the two fractions together, check if the numerator can be factorised such that there is a common factor in the denominator and numerator. In this case, the numerator cannot be factorised.

Lastly, expand the denominator.

\frac{x + 7}{4x}  +  \frac{5}{x - 8}

=  \frac{(x + 7)(x - 8)}{4x(x - 8)}  +  \frac{5(4x)}{4x(x - 8)}

=  \frac{x(x) + x( - 8) + 7(x) + 7( - 8) + 20x}{4x(x - 8)}

=  \frac{ {x}^{2} - 8x + 7x - 56 + 20x }{4x(x - 8)}

=  \frac{ {x}^{2}  + 19x - 56}{4x(x - 8)}

=  \frac{ {x}^{2}  + 19x - 56}{4 {x}^{2}  -  32x}

7 0
2 years ago
Fake Question So It Doesnt Get Taken Down, What is 40992981x9977, Real Question, How do I change my pfp?
DedPeter [7]

go to where the bell is and where it says "ask question" and then do you see your little icon thingy? right there, click it.  hit edit profile. and then

it shoulld say this

Edit your profile

Preferences

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hit profile picture and boom it says upload and all that

7 0
2 years ago
Read 2 more answers
A^2-a+12=0 I need the roots
kumpel [21]

Answer:

a = 1/2 (1 ±sqrt(47))

Step-by-step explanation:

a^2-a+12=0

We will complete the square

Subtract 12 from each side

a^2-a+12-12=0-12

a^2-a=-12

The coefficient of a = -1

-Divide by 2 and then square it

(-1/2) ^2 = 1/4

Add it to each side

a^2 -a +1/4=-12 +1/4

(a-1/2)^2 = -11 3/4

(a-1/2)^2= -47/4

Take the square root of each side

sqrt((a-1/2)^2) =sqrt(-47/4)

a-1/2 = ±i sqrt(1/4) sqrt(47)

a-1/2= ±i/2 sqrt(47)

Add 1/2 to each side

a-1/2+1/2 = 1/2± i/2 sqrt(47)

a =  1/2± i/2 sqrt(47)

a = 1/2 (1 ±sqrt(47))

8 0
2 years ago
PLZ HELP ME I AM TIMED HELP PLZ​
ladessa [460]

Answer:

c

ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

6 0
3 years ago
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