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joja [24]
3 years ago
13

Find the value of X.

Mathematics
1 answer:
hram777 [196]3 years ago
3 0

Answer:

X=6 I believe

Step-by-step explanation:

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5x^2-4x=5x+1<br><br> Just need simplified thank you so much
cluponka [151]
Hey!


Using the additive property of equality, we can subtract 5x from both sides to get 5x^2-9x=1. Next, we can subtract 1 from both sides to get 5x^2-9x-1=0. Thus, we have a polynomial equation of the form ax^2+bx+c. To simplify this, we would need to factor it out. In the case where a>1, which this one is, we must factor the polynomial so we end up with (5x+ _)(x+_). Thus, if we put the first blank as the value a and the second value as the value b, we get (5x+a)*(x+b)=5x^2+ax+5xb+ab. Thus, a*b=-1 (since there isn’t an x attached to it) and ax+5xb=-9x. Using a*b=-1, we can divide b from both sides using the multiplicative property of equality to get a=-1/b. Substituting that into ax+5xb=-9x, we have ax+5(-1/a)x=-9x. Dividing x from both sides, we get a+-5/a=-9. Multiplying both sides by a get rid of the -5/a, we get a^2-5=-9a. Adding 9a to both sides, we end up with a^2+9a-5=0. This is simpler than our original equation, and we can quickly figure out that because (0)^2+9*0-5=-5 and (1)^2+9*1-5=5, a must be between 0 and 1 and it would therefore be relatively complex to factor out. Therefore, our equation stays as is, and our simplified equation is 5x^2-9x-1=0

Feel free to ask further questions, and have a great day!
6 0
3 years ago
20 POINTS!!!!!!! PLZ HELP I HAVE 3 MINS. On Saturday, the bookstore sold x books. On Sunday, the bookstore sold 2 more books tha
Aloiza [94]
X+2x is your expression. Hope it helps and remember to mark as brainliest!
6 0
4 years ago
Read 2 more answers
What is the slope of the graphed above?<br>A. -2<br>B. -1<br>C. -1/2<br>D. 1/2<br>E. 2<br>​
DochEvi [55]

Answer:

C

Step-by-step explanation:

slope is rise/run or y2-y1/x2-x1

We use the two points (0,1) and (2,0)

y2=0, y1=1, x2=2, x1=0

0-1=-1

2-0=2

-1/2=-1/2

This gives a slope of -1/2, Answer Choice C

8 0
3 years ago
Read 2 more answers
determine whether the fractions -4/5 -4/6 -4/7 and -4/8 are arranged in order from least to greatest.Explain
Katen [24]
-4/8, -4/7, -4/6, -4/5
3 0
3 years ago
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What is the 11th term of the sequence<br> 1, 2, 4, 8, 16, ...?
iris [78.8K]

Answer:

1024

Step-by-step explanation:

16x2=32

32x2=64

64x2=128

128x2=256

256x2=512

512x2=1024

x= previous term multiplied by 2

hopefully this helps :)

5 0
3 years ago
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