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Hitunglah nilai determinan dari fungsi kuadrat berikut.
1.) 8x² + 7x + 10 = 0
2.) 2x² + 10x + 10 = 5

Answers

Answer 1
♪Answer :

Ingat rumus determinan fungsi kuadrat yaitu :

[tex]\longmapsto\boxed{\sf{D = b^2 - 4ac}}[/tex]

Maka, Kita kembali jawab soalnya.

⏩Nomor (1) :

»8x² + 7x + 10 = 0

Didapatkan nilai² a, b, dan c yaitu :

a = 8 | b = 7 | c = 10

Maka, nilai determinannya adalah

D = b² - 4ac D = 7² - 4(8)(10) D = 49 - 4(80) D = 49 - 320 D = -271

[tex]\:[/tex]

⏩Nomor (2) ;

»2x² + 10x + 10 = 5

»2x² + 10x + 10 - 5 = 0

»2x² + 10x + 5 = 0

Didapatkan nilai² a, b, dan c yaitu :

a = 2 | b = 10 | c = 5

Maka, nilai determinannya adalah

D = b² - 4ac D = 10² - 4(2)(5) D = 100 - 4(10) D = 100 - 40 D = 60
Answer 2

[tex]\\ \rm\hookrightarrow 8x^2+7x+10=0[/tex]

Determinant be D

[tex]\\ \rm\hookrightarrow D=b^2-4ac[/tex]

[tex]\\ \rm\hookrightarrow D=7^2-320[/tex]

[tex]\\ \rm\hookrightarrow D=49-320[/tex]

[tex]\\ \rm\hookrightarrow D=-271[/tex]

#2

[tex]\\ \rm\hookrightarrow 2x^2+10x+10=5[/tex]

[tex]\\ \rm\hookrightarrow 2x^2+10x+5=0[/tex]

[tex]\\ \rm\hookrightarrow D=10^2-40[/tex]

[tex]\\ \rm\hookrightarrow D=100-40[/tex]

[tex]\\ \rm\hookrightarrow D=60[/tex]


Related Questions

Complete each statement using <, >, or =. Use your number line to explain your reasoning

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Answer:

<

Step-by-step explanation:


Huilan is 8 years older than Thomas. The sum of their ages is 70. What is Thomas's age?

Answers

Answer:

T = 31

Step-by-step explanation:

(T + 8) + T = 70

subtract 8 from both sides

T+T = 62

Rewrite

2T = 62

divide both sides by 2

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50 POINTS // This graph represents a proportional relationship.

What is the constant of proportionality for this relationship?

•1/3

•1/2

•2

•I don't know

Answers

We need slope

(3,1)(6,2)

[tex]\\ \rm\Rrightarrow m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\\ \rm\Rrightarrow m=\dfrac{2-1}{6-3}[/tex]

[tex]\\ \rm\Rrightarrow m=\dfrac{1}{3}[/tex]

Solution:

This can be solved using two methods:

Method #1:

Rise/Run = Slope=> 1/3 = Slope

The slope is 1/3.

Method #2:

y₂ - y₁/x₂ - x₁ = Slope=> 2 - 1/6 - 3 = Slope=> 1/3 = Slope

The slope is 1/3.

Looking at the two methods, we can conclude that:

The slope of the line is 1/3.

Zach worked 1,040 hours this year and made $9 per hour. How much money did he earn over the course of the year?

$9,060
$9,360
$10,360
$12,660

Answers

Answer:

$9,360

Explanation:

$9 per hour, rewrite: 1 hour he earned $9

so for 1040 hours, he earned:

$9 * 1,040

$9,360

Answer:1,040h x $9 = 9,360Step-by-step explanation:Just multiply the hours by how much he made per hour, its B

Problem 0: Compute the inverse Laplace Transforms of:
[tex]F(s) = \frac{s + 1}{s(s - 1)(s - 3)} [/tex]

[tex]F(s) = \frac{1}{(s - 1)(s - 2)(s - 3)} [/tex]

Answers

Decompose each given F(s) into partial fractions.

[tex]F(s) = \dfrac{s+1}{s(s-1)(s-3)}[/tex]

has partial fraction decomposition

[tex]\dfrac{s+1}{s(s-1)(s-3)} = \dfrac as + \dfrac b{s-1} + \dfrac c{s-3}[/tex]

Combine the rational terms on the right and solve for the coefficients:

[tex]\dfrac{s+1}{s(s-1)(s-3)} = \dfrac{a(s-1)(s-3) + b s(s-3) + c s(s-1)}{s (s-1) (s-3)}[/tex]

[tex]1 = a(s-1)(s-3) + bs(s-3) + c s(s-1)[/tex]

[tex]1 = 3 a + (-4 a - 3 b - c) s + (a + b + c) s^2[/tex]

[tex]\begin{cases}3a=1 \\ -4a-3b-c = 0 \\ a+b+c=0 \end{cases} \implies a=\dfrac13, b=-\dfrac12, c=\dfrac16[/tex]

Then

[tex]F(s) = \dfrac13 \times \dfrac1s - \dfrac12 \times \dfrac1{s-1} + \dfrac16 \times \dfrac1{s-3}[/tex]

Using the frequency-shifting property, the inverse transform is

[tex]\boxed{f(t) = \dfrac13 - \dfrac{e^t}2 + \dfrac{e^{3t}}6}[/tex]

The other transform can be dealt with in the same manner.

[tex]F(s) = \dfrac1{(s-1)(s-2)(s-3)} = \dfrac a{s-1} + \dfrac b{s-2} + \dfrac c{s-3}[/tex]

[tex]\implies 1 = a(s-2)(s-3) + b(s-1)(s-3) + c(s-1)(s-2)[/tex]

[tex]\implies 1 = 6 a + 3 b + 2 c + (-5 a - 4 b - 3 c) s + (a + b + c) s^2[/tex]

[tex]\implies \begin{cases}6 a + 3 b + 2 c=1 \\ -5a-4b-3c = 0 \\ a+b+c=0\end{cases} \implies a=\dfrac12, b=-1, c=\dfrac12[/tex]

[tex]\implies F(s) = \dfrac12 \times \dfrac1{s-1} - \dfrac1{s-2} + \dfrac12 \times \dfrac1{s-3}[/tex]

[tex]\implies \boxed{f(t) = \dfrac{e^t}2 - e^{2t} + \dfrac{e^{3t}}2}[/tex]

Please answer the question in the picture

Answers

Answer:

Option A

Step-by-step explanation:

Both fractions have common denominators (x - 4). So, we can add the numerators.

[tex]\dfrac{x-9}{x-4}+\dfrac{x^{2}-x+5}{x-4}=\dfrac{x-9 +x^{2}-x +5}{x-4}\\\\\\=\dfrac{x -x +x^{2}-9+5}{x-4}\\\\\\=\dfrac{x^{2}-4}{x-4}[/tex]

The y- intercept is when x= ?

Answers

Answer:

The y-intercept is the point at which the graph crosses the y-axis. At this point, the x-coordinate is zero. To determine the x-intercept, we set y equal to zero and solve for x. Similarly, to determine the y-intercept, we set x equal to zero and solve for y.

Step-by-step explanation:

hope it helps

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Answers

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Answers

Answer:

Step-by-step explanation:

Answered here: https://brainly.com/question/26774005

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Answers

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Step-by-step explanation:

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Answers

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Answers

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Answers

Answer:

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Step-by-step explanation:

Hope This Helps

Have A Great Day

~Zero~

The answer is 0

Because you should subtract: 5 - 0 = 0

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Answers

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Answer:

Step-by-step explanation:

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Answers

Answer:

Step-by-step explanation:

1 3 5 are all odd numbers.

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Answers

Answer:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

ve thirds Conversion a mixed number 1 5/ 6 to a improper fraction: 1 5/6 = 1 5/ 6 = 1 · 6 + 5/ 6 = 6 + 5/ 6 = 11/ 6 To find a new numerator: a) Multiply the whole number 1 by the denominator 6. Whole number 1 equally 1 * 6/ 6 = 6/ 6 b) Add the answer from previous step 6 to the numerator 5. New numerator is 6 + 5 = 11 c) Write a previous answer (new numerator 11) over the denominator 6. One and five sixths is eleven sixths Divide: 5/ 3 : 11/ 6 = 5/ 3 · 6/ 11 = 5 · 6/ 3 · 11 = 30/ 33 = 3 · 10 / 3 · 11 = 10/ 11 Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 11/ 6 is 6/ 11 ) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the following intermediate step, cancel by a common factor of 3 gives 10/ 11 . In other words - five thirds divided by eleven sixths = ten elevenths.

PLEASE HELP!!!!!!!!!!!!!!!!

Answers

Answer:

The answer is B 80.00 hope this helps

have a nice day

Step-by-step explanation:

HELP ME OUT PLS!!!!

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Answers

The last 3 squares (ie D)

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= 11 + 5 =16 cm2

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Hugh and his brothers are on a road trip. His brother makes a table comparing how long they have traveled in hours ( x ) with the number of miles they have traveled ( y ). Which equation can be used to figure out how many miles Hugh and his brothers have traveled based on the number of miles they have driven?

Answers

The required equation that can be used to figure out how many miles Hugh and his brothers have traveled based on the number of miles they have driven is y = 65x

Equation of a graph and table

Given the following variables

Time taken to travel is x

Mils traveled is y

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The standard linear equation is y = mx + b

slope m = 260-130/4-2
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m = 65

For the intercept

130 = 65(2) + b

b = 0

The required equation that can be used to figure out how many miles Hugh and his brothers have traveled based on the number of miles they have driven is y = 65x

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HELP THIS IS URGENT NEED TODAY!!!!!!!!!!!!!
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Enter an equation to model the relationship between the number of hours worked h and the amount earned e.

Answers

Answer:

If he earns (e) $7.75 per hour, this implies e = 7.75h.

Step-by-step explanation:

If you wanted to solve that-

e = 7.75h

193.75 = 7.75h

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What is the area of a rectangle with a length of 214 inches and a width of 234 inches?

714 in²

6316 in²

4316 in²

3332 in²

Answers

Given :

The length of a rectangle is 214 inches and the width is 234 inches.

To Find :

The area of the rectangle.

Solution :

We know that,

[tex]\qquad { \pmb{ \bf{Length \times Width = Area_{(rectangle)}}}}\:[/tex]

Now substituting the values :

[tex]\qquad {\dashrightarrow{ \sf{214 \: in\times 234 \: in = Area_{(rectangle)}}}}\:[/tex]

[tex]\qquad {\dashrightarrow \: { { \sf{50,076 \: {in}^{2} = Area_{(rectangle)}}}}\:}

[/tex]

Hence, The area of the rectangle is 50,076 in² .

The area of a rectangle with a length of 2 1/4 inches and a width of 2 3/4 inches is 6 3/16 in². Option C is correct.

How to find the area of a rectangle?

Area of a rectangle is the product of the length of the rectangle and the width of the rectangle. It can be given as,

[tex]A=a\times b[/tex]

Here, (a)is the length of the rectangle and (b) is the width of the rectangle.

The rectangle given in the problem has,

A length of 2 1/4 inches.  A width of 2 3/4 inches.

Thus, the area of the rectangle is,

[tex]A=2\dfrac{1}{4}\times2\dfrac{3}{4}\\A=\dfrac{8+1}{4}\times\dfrac{8+3}{4}\\A=\dfrac{9}{4}\times\dfrac{11}{4}\\A=\dfrac{99}{16}\\\A=\dfrac{96+3}{16}\\A=6\dfrac{3}{16}[/tex]

Thus, the area of a rectangle with a length of 2 1/4 inches and a width of 2 3/4 inches is 6 3/16 in². Option C is correct.

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Which function represents a parabola that is translated 2 units to the left and 6 units down from the parent function, f(x)=x^2

Answers

Translation involves moving a function along its coordinates

The image of the function is [tex]g(x) = (x + 2)^2 - 6[/tex]

How to determine the new function

The parent function is given as:

[tex]f(x) = x^2[/tex]

When the function is translated 2 units left, we have:

[tex]f'(x) = (x + 2)^2[/tex]

When the function is translated 6 units down, we have:

[tex]f"(x) = (x + 2)^2 - 6[/tex]

Rewrite as:

[tex]g(x) = (x + 2)^2 - 6[/tex]

Hence, the image of the function is [tex]g(x) = (x + 2)^2 - 6[/tex]

Read more about translation at:

https://brainly.com/question/11468584

HELPPPP IF YOU CAN pls?

Answers

Answer:

i'm not sure but here's some encouragement- YOU CAN DO IT

Step-by-step explanation:

A line crosses the y-axis at (0,55). What is the y-intercept of this line?

Answers

Answer:

[tex]\huge\boxed{\sf{b=55\:(b=y-intercept\:;)}}[/tex]

Step-by-step explanation:

Hello.

The y-intercept of a line is a point where the graph touches the y-axis.

Y-intercepts always have an x-coordinate of 0.

Now, what is the y-intercept?

If we have a point (0, b) then b is the y-intercept.

This is just a formula, so don't think that the y-intercept is b, okay?

The y-intercept is b, but only in formulae. :)

Using the formula, we can deduce that

the y-intercept is 55.

I hope it helps.

Have a great day.

[tex]\boxed{imperturbability}[/tex]

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