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Mathematics

1 answer:

Bogdan [553]2 years ago

7 0

Answer:

Bart lives 9 1/6 miles from Quickie Mart.

Step-by-step explanation:

So, 2.5 is equal to 2 1/2.

So first turn each mixed number into a improper fraction.

3 2/3 becomes 11/3 and 2 1/2 becomes 5/2.

11/3 * 5/2 = 55/6

55/6 is simplified to become 9 1/6

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Which of the following best describes the solution to the equation below?

kozerog [31]

D)One solution. b=5
Distribute 2 times b plus 2 times 3
2b+6
2b+6+2b=26
Combine like terms 4b+6=26
Subtract 6 from both sides
4b=20
Divide both sides by 4
b=5

Check by substituting 5 for b
2 (5+3)+2(5)=26
2(8) + 2(5)=26
16+10=26
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If A = {2, 4, 6, 8, 10} and B = {1, 2, 3, 4, 5}, find A Intersects with B.

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67.943

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1.) Find the value of the discriminant and the the number of real solutions of

ruslelena [56]

Hi there!

When we have an equation standard form...
$a {x}^{2} + bx + c = 0$
...the formula of the discriminant is
D = b^2 - 4ac

When
D > 0 we have two real solutions
D = 0 we have one real solutions
D < 0 we don't have real solutions

1.) Find the value of the discriminant and the the number of real solutions of
x^2-8x+7=0

Plug in the values from the equation into the formula of the discriminant

$( - 8) {}^{2} - 4 \times 1 \times 7 = 64 - 28 = 36$

D > 0 and therefore we have two real solutions.

2.) Find the value of the discriminant and the number of real solutions of
2x^2+4x+2=0

Again, plug in the values from the equation into the formula of the discriminant.

${4}^{2} - 4 \times 2 \times 2 = 16 - 16 = 0$

D = 0 and therefore we have one real solution.

~ Hope this helps you.

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Read 2 more answers

Expresión factorizada <br> 12abxyz - 3xyz - 4 ab + 1

BARSIC [14]

Answer:

12+3-4+1=12

Step-by-step explanation:

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