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USPshnik [31]
3 years ago
12

Write the quadratic equation in standard form and then choose the value of "b." (2x - 1)(x + 6) = 0

Mathematics
1 answer:
Eddi Din [679]3 years ago
4 0

ANSWER

b=11

EXPLANATION

The given quadratic equation is

(2x - 1)(x + 6) = 0

We expand to get:

2 {x}^{2}  + 12x - x - 6 = 0

We simplify further by combining the x terms.

2 {x}^{2}  + 11x - 6 = 0

This is the standard form.

Comparing to

a{x}^{2}  + bx  + c= 0

We have b=11

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Answer:

A = 2200x - 2x^2

Step-by-step explanation:

Let's x be the length of the side that is NOT the same as the side along the river (or in opposite). From the fencing perimeter of 2200ft we can calculate the other side y of the rectangular:

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3 years ago
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devlian [24]

Answer:

Children: $13

Adults: $18

Step-by-step explanation:

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\left \{ {{3a + 4c = 106} \atop {2a + 3c = 75}} \right.

So first we need to solve for a in the first equation.

3a + 4c = 106

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Now we plug in that a for a in 2a + 3c = 75.

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<em>an adult ticket is $18 and a children's ticket is $13.</em>

<em />

<em>Hope this helps :)</em>

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