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adell [148]
3 years ago
13

Which graph represents the solution to this inequality?

Mathematics
1 answer:
morpeh [17]3 years ago
7 0

C

In the second to last step, you end up with -x ≤ 13, but x can't be negative, so the sign is flipped, turning x positive and 13 negative, leaving us with x ≥ -13, which is why the line goes right.

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Divid 15 into two parts such that the sum of their reciprocal is 3/10
emmasim [6.3K]
Let x and y be the 2 parts of 15 ==> x + y=15 (given)

Reciprocal of x and y ==> 1/x +1/y ==> 1/x + 1/y = 3/10 (given)


Let's solve  1/x + 1/y = 3/10 . Common denominator = 10.x.y (reduce to same denominator)

 ==> (10y+10x)/10xy = 3xy/10xy ==> 10x+10y =3xy

But x+y = 15 , then 10x+10y =150 ==> 150=3xy and xy = 50

Now we have the sum S of the 2 parts that is S = 15 and 
their Product = xy =50
Let's use the quadratic equation for S and P==> X² -SX +P =0
Or X² - 15X + 50=0, Solve for X & you will find:
The 1st part of 15 is 10 & the 2nd part is 5
4 0
3 years ago
PLEASE HELP! 50 POINTS! (Solve each system of equations. Determine which quadrant the solution lies in.)
Sloan [31]

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wet

Step-by-step explanation:

3 0
2 years ago
What is the value of x?
Pepsi [2]

The angle between the segment labled x and the chord labeled 30 is not specified. The measure of x cannot be determined, except to say that it is somewhere between 16 and the radius of the circle, √(16²+15²) = √481 ≈ 21.93.

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If the angle between x and the chord were marked as a right angle, one could say x=16, because all chords of the same length are the same distance from the center of the circle.

4 0
3 years ago
Read 2 more answers
What's 9×9(0+1)=??? And please show work
leva [86]
9 x 9( 0+1)=
81(0+1)=
The answer is 81
Hope this helps!
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6 0
3 years ago
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5×23×2 plzz halppppp
Vikentia [17]

230

because 5x23 is 115 x 2 which is 230

6 0
3 years ago
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