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grandymaker [24]
3 years ago
7

Which system of equations can be used to find the roots of the equation 12x3-5x=2x2+x+6

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0
Same=same figure out what the x is both x are the same number on both side is the same answer hope that helps
seraphim [82]3 years ago
7 0

y=12x^{3}-5x -----> equation A

y=2x^{2} +x+6 ------> equation B

we have

12x^{3}-5x=2x^{2} +x+6

This equation can be rewritten in the following system of equations

y=12x^{3}-5x -----> equation A

y=2x^{2} +x+6 ------> equation B

we know that

The solution of the system of equations is the intersection point both graphs

using a graphing tool

see the attached figure

The solution is

x=1.07



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2 fractions between 3/5 and 4/5
Tasya [4]
Convert the fractions to decimals:

3/5=0.6
4/5=0.8

You have to find 2 fractions between these 2 numbers. You could pick anything.

7/10= 0.7 = less than 0.8 but greater than 0.6

75/100=0.75 = less than 0.8 but greater than 0.6

Hope this helps

3 0
3 years ago
Solve 2a 2 - 3a - 2 = 0<br><br> {-1/2, 2}<br> {1/2, -2}<br> {}
d1i1m1o1n [39]
Apply slip and slide
a^2-3a-4
(a-4)(a+1)
(a-2)(2a+1)

Find zeros
a-2=0
a=2

2a+1=0
2a=-1
a=-1/2

Final answer: {-1/2, 2}
8 0
3 years ago
Read 2 more answers
Part of the proceeds from a garage sale was $470 worth of $10 and $20 bills. If there were 14 more $10 bills than $20 bills, fin
Brums [2.3K]

There are 25 $10 bills and 11 $20 bills.

Step-by-step explanation:

Given,

Worth of proceeds from garage = $470

Let,

x be the number of $10 bills

y be the number of $20 bills.

According to given situation;

10x+20y=470       Eqn 1

x = y+14                Eqn 2

Putting value of x from Eqn 2 in Eqn 1

10(y+14)+20y=470\\10y+140+20y=470\\30y=470-140\\30y=330

Dividing both sides by 30

\frac{30y}{30}=\frac{330}{30}\\y=11

Putting y=11 in Eqn 2

x=11+14\\x=25

There are 25 $10 bills and 11 $20 bills.

Keywords: linear equation, substitution method

Learn more about linear equations at:

  • brainly.com/question/1279756
  • brainly.com/question/1284310

#LearnwithBrainly

5 0
3 years ago
Find the hypotenuse of a 45-45-90 triangle with legs equal to 7
madam [21]

Answer:

Square root of 98

Step-by-step explanation:

5 0
3 years ago
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Bars of soap come in packages of 2 and packages of 8. The 2-bar pack costs $1.98, and the 8-bar pack costs $8.88. Which is the b
Sunny_sXe [5.5K]

Answer:

the answer is 2-bar pack that costs 1.98, it is 0.99 per bar.

Step-by-step explanation:

divide $1.98 and 2 which comes to $0.99 then divide $8.88 and 8 which comes to $1.11 so 0.99 is cheaper and the better deal

7 0
2 years ago
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