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vekshin1
3 years ago
11

Please help meeeeeeee pt 4

Mathematics
1 answer:
liraira [26]3 years ago
5 0

Answer:

The answer is

2 {x}^{2}  + 3x - 1 = 0

Why? Below I explain

Step-by-step explanation:

That formula has three variables a, b and c.

So, a = 2, b = 3 and c = -1

Because the formula is written like

\frac{ - b +  -  \sqrt{ {b}^{2}  - 4 \times a \times c} }{2 \times a}

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CaHeK987 [17]
I would say that you cannot answer the question if you dont know either the X-value or Y-value. You need to know at least one of them to figure out the other.
4 0
2 years ago
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1% defective parts. 100,00 parts made in total. The number of defects made should equal?
leonid [27]

Answer:

1,000 defects

Step-by-step explanation:

Find how many defects that should be made by finding 1% of 100,000:

100,000(0.01)

= 1000

So, there should be 1,000 defects

7 0
2 years ago
A 10-ounce container of chocolate chips can be used to make 4 desserts.
Mademuasel [1]

Answer:

10/4 =10/4 ounces

Step-by-step explanation:

8 0
3 years ago
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I need help with #8. I need to use the quadratic formula. I have a calculator that is programmed for the quadratic formula so al
GuDViN [60]

Answer:

  x = 14

Step-by-step explanation:

Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent.

The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:

  138 = (376 -23x) +(x^2 -8x)

Subtracting 138 and collecting terms we have ...

  x^2 -31x +238 = 0

For your calculator, a=1, b=-31, c=238.

__

<em>Additional comment</em>

You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.

For x=14, the marked angles are A = 84°, C = 54°.

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3 years ago
Use an inequality to describe the interval of real numbers <br><br>(-3,8]
Naya [18.7K]
38 i think it means infinite
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3 years ago
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