How do you do that plz help or just give the answer
Answers
the - sign before the first parentheses is a negative 1
you distribute the -1 into the parentheses
-1 multiplied by -1/2x is 1/2x and -1 multiplied by -1/2 is 1/2.
so now we have 2x-1/2x+1/2=8
you combine like terms (2x and -1/2x)
you get 1 1/2x+1/2=8
you subtract the 1/2 to get 1 1/2x= 7 1/2
you divide everything by 1 1/2.
the answer is x=5
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mr carlos buys 1,080 apples. 1/9 of the apples are rotten. he sells the rest at $2 for 10 apples. how much does he earn from the sale
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Answers
the factors can't be 1.
the factors have to be odd.
they have to be the same.
offhand i would say 3*3*3*3 would be equal to 9*9 = 81.
the number 81 has 4 odd factors that are all the same.
can't be 1 because 1 doesn't counts as a factor.
a prime number has 2 factors.
1 and itself.
every number has a factor of 1 and itself.
Answers
2b + a = 7
b*a = 6
factors of 6: (2x3) and (6x1)
let b = 2, a = 3
2(2)+ 3 = 7 check
(2x + 3)(x + 2)
Final answer:
To complete the square and rewrite the quadratic equation 2x^2+7x+6=0, follow these steps: move the constant term, divide the coefficient of x^2, square half of the coefficient of x, add the result to both sides, factor the left side, take the square root, and solve for x.
Explanation:
To rewrite the quadratic equation 2x^2+7x+6=0 by completing the square, follow these steps:
- Move the constant term to the other side of the equation: 2x^2+7x = -6.
- Divide the coefficient of x^2 by 2: x^2+(7/2)x = -3.
- Take half of the coefficient of x and square it: (7/4)^2 = 49/16.
- Add the result from step 3 to both sides of the equation: x^2+(7/2)x+49/16 = -3+49/16.
- Factor the left side of the equation: (x+7/4)^2 = (1/16).
- Take the square root of both sides of the equation: x+7/4 = ±(1/4).
- Solve for x: x = -7/4 ±(1/4).
Learn more about quadratic equations here:
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3/4(3x+4)=4(x+6)
Answers
Answer:
Step-by-step explanation:
3/4 (3x + 4) = 4 (x + 6)
9x/4 + 3 = 4x + 24
9x/4 - 4x = 24 - 3
9x/4 - 4x = 21
multiply by 4 on both sides
9x - 16x = 84
-7x = 84
x = 84 / -7
x = -12
Answer:
-12
Step-by-step explanation:
I put it in my special calculator
Answers
Answer:
x=8/9
Step-by-step explanation:
-3.1x+7-7.4x=1.5x+6(x-3/2)
-3.1x-7.4x+7=1.5x+6x-9
-10.5x-1.5x-6x=-9-7
-18x=-16
18x=16
x=16/18
simplify
x=8/9
Answers