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Juli2301 [7.4K]
3 years ago
10

F(x) = 3x* + 4x – 8. How many zeros does this have?

Mathematics
1 answer:
Katarina [22]3 years ago
5 0
<h3><u>Question:</u></h3>

f(x) = 3x^2 + 4x – 8.

How many zeros does this have?

<h3><u>Answer:</u></h3>

The given function has two zeros

<h3><u>Solution:</u></h3>

According to the "Fundamental Theorem of Algebra", a polynomial of degree "n"  has  "n"  zeroes

Regardless of odd or even, any polynomial of positive order can have a maximum number of zeros equal to its order. For example, a cubic function can have as many as three zeros, but no more. This is known as the fundamental theorem of algebra.

The degree is the value of the greatest exponent of any term (except the constant ) in the polynomial.

Your function is second degree polynomial, so it has two zeroes.

These can be a mix of rational, irrational, and complex zeroes.

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What is the approximate average rate of change over the interval [2, 6]?
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Answer:

250

Step-by-step explanation:

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3 years ago
Solve the equation: .2x(.7x-5)+0.2=1.4(x-1.6)
Ilia_Sergeevich [38]

9514 1404 393

Answer:

  x = 8/7

Step-by-step explanation:

  .2(.7x-5)+0.2=1.4(x-1.6) . . . . given

Eliminating parentheses, we have ...

  0.14x -1 +0.2 = 1.4x -2.24

  1.44 = 1.26x . . . . . . . add 2.24-0.14x to both sides

  x = 1.44/1.26 . . . . . . divide by the coefficient of x

  x = 8/7 . . . . . . . . . . .simplify the fraction

__

As a repeating decimal, the value of x is ...

  x=1.\overline{142857}

However, the notation 1.(142857) is usually reserved for the case where the contents of parentheses are being multiplied by the factor in front. You would need to consult your instructions to see how the decimal version of the answer should be entered. (Quite often, rounding is suggested.)

_____

<em>Additional comment</em>

The equation in the text of your question is different from the one in the picture. We have answered for the one in the picture. The text asks for the solution of a quadratic. Those two solutions are approximately 1.085 and 16.057.

6 0
3 years ago
Read 2 more answers
B\7+12=-8 helpppppppp
vodka [1.7K]

Answer:

b = -152

Step-by-step explanation:

  1. 7 + 12 = 19
  2. Plug 19 in: \frac{b}{19} = -8  
  3. Multiply each side by 19 to cancel out the 19 under b. It should now look like this: b = -152

I hope this helps!

8 0
3 years ago
A
Reika [66]

The value of x will be equal to x = 79.

<h3>What is the triangle?</h3>

Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

For an isosceles triangle, the value of two opposite angles is equal and the opposite sides are also equal.

The Sum of the three angles is equal to 180 degrees so the third angle will be calculated as:-

Angle = 180 - 142 - 19 = 19

Now applying Lami's theorem in the triangle we will get the third side.

\dfrac{sin\angle A}{a} = \dfrac{sin\angle B}{b} = \dfrac{sin\angle C}{c}

\dfrac{Sin 19}{42}= \dfrac{Sin142}{x}

x = \dfrac{42\times Sin 142}{Sin19}

x = 79

Therefore the value of x will be equal to x = 79.

To know more about triangles follow

brainly.com/question/17335144

#SPJ1

3 0
2 years ago
The average blink last one-tenth of a second. If you blink 14,000 times per day, for how many seconds are your eyes closed while
Katen [24]

Answer:

14?

Step-by-step explanation:

8 0
3 years ago
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