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alekssr [168]
4 years ago
12

Rewrite the equation by completing the square. 2 x^2 -11 x +14 = 0

Mathematics
1 answer:
Tanzania [10]4 years ago
4 0

Answer:

x^2 - (11/2)x + 121/16 = -7

Step-by-step explanation:

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Nora is going to invest in an account paying an interest rate of 4.3% compounded continuously. How much would Nora need to inves
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P≈3216

3216

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3 0
3 years ago
A family plans to have the hardwood floors in their square dining room re-finished, and new baseboards installed. The cost of re
Alexus [3.1K]

Answer:

Dimension of room = 18 foot x 18 foot

Step-by-step explanation:

Let the square room is of side a foot,

The cost of re-finishing the hardwood floors is $2.25 per square foot and the cost of purchasing and installing the new baseboards $14.5 per linear foot

Total cost is  $1773.

Cost for re-finishing the hardwood floors = Area x 2.25

Area = a²

Cost for re-finishing the hardwood floors = 2.25 a²

Cost of purchasing and installing the new baseboards = Perimeter x 14.5

Perimeter = 4a

Cost of purchasing and installing the new baseboards = 4a x 14.5 = 58 a

Total cost = Cost for re-finishing the hardwood floors + Cost of purchasing and installing the new baseboards

1773 = 2.25 a² + 58a

2.25 a² + 58a - 1773 = 0

a = 18 or a = -43.77(not possible)

Dimension of room = 18 foot x 18 foot

7 0
4 years ago
When dealing with word problems and linear equations, what does the y-intercept represent and how is the slope defined? A) y-int
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4 years ago
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Write an expression that goes with this sentence. The sum of three-fifths of w and two -fifths of x, minus 8
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(3/5)w + (2/5)x - 8 is the appropriate expression.  Be sure to use the parentheses as shown.


7 0
4 years ago
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Help me please explain
Vera_Pavlovna [14]

Answer:

x=6,-4

Step-by-step explanation:

Ok so we know the 2 angles are congruent so you need to set them equal to each other. x^2+5x=7x+24. Then get the x's together so you subtract by 7x to get x^2-2x=24. You would then get 24 on the other side so subtract by 24 to get x^2-2x-24. You then would need to factor the equation out. The factored form would be (x-6)(x+4). Then set it equal to 0 to get 6 and -4.

7 0
3 years ago
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