1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoray [572]
3 years ago
6

I WILL GIVE BRAINLIEST AND THANKS SOLVE THE QUADRATIC EQUATION

Mathematics
2 answers:
RUDIKE [14]3 years ago
4 0

Answer:

x = 2.57338441, − 0.90671775

Step-by-step explanation:

x = 5 ±√109/2 x 3

Times 2 by 3

x = 5 ± √109/6

x = 5 ± √109/6

x = 5 + √109/6

x = 5 ± √109/6

x = 5 - √109/6

x = 5 + √109/6, 5 - √109/6

x = 2.57338441, − 0.90671775

laiz [17]3 years ago
3 0

Answer:

x = -0.907, 2.57

Step-by-step explanation:

Quadratic Formula: x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}

Since we are given <em>a</em> = 3, <em>b</em> = -5, and <em>c</em> = -7 from our quadratic, we simply use the Quadratic Formula:

Step 1: Plug in variables

x=\frac{-(-5)+/-\sqrt{(-5)^2-4(3)(-7)} }{2(3)}

Step 2: Solve

x=\frac{5+/-\sqrt{25+ 84} }{6}

x=\frac{5+/-\sqrt{109} }{6}

Step 3: Evaluate for decimals

You should get x = -0.906718 and 2.57338 as your answers.

You might be interested in
I need help solving this. 8÷2(2+2)​
tia_tia [17]

Answer:

16

Step-by-step explanation:

8/ 2*(2+2) = 4*(2+2) = 4*4 = 16

4 0
3 years ago
Keith wants to place a picture frame in the center of a wall that is 14 5/6 feet wide. The picture is 1 1/2 feet wide.
Karolina [17]

Answer:

HM

Step-by-step explanation:

dddd

5 0
3 years ago
Tim paid $3.00 to rent a bike for 30 minutes. Write an equation that shows the price to rent a bike for any number of minutes
8_murik_8 [283]

Answer:

You could say something like "Tim payed $6.00 to rent a bike for an hour

Step-by-step explanation:

3 0
3 years ago
How many solutions does 3 - 2x = 5 - x + 3 + 4x have?
vitfil [10]

Well let's see.

3-2x=5-x+3+4x \\3-2x=8+3x \\-5x=5 \\x=-1 \\

The equation has exactly one solution.

Hope this helps.

5 0
3 years ago
Help thankss <br>answer is <br><img src="https://tex.z-dn.net/?f=%20%28%20-%2014.0%29" id="TexFormula1" title=" ( - 14.0)" alt="
lyudmila [28]
We have point P=(x_0,y_0)=(2,-4), so first calculate f'(x_0). There will be:

y=f(x)=2x^3-5x^2\\\\\\\\f'(x)=\big(2x^3-5x^2\big)'=\big(2x^3\big)'-\big(5x^2\big)'=2\big(x^3\big)'-5\big(x^2\big)'=\\\\=2\cdot3x^2-5\cdot2x=\boxed{6x^2-10x}\\\\\\\\f'(x_0)=f'(2)=6\cdot2^2-10\cdot2=6\cdot4-20=24-20=\boxed{4}

Now, we can write the equation of the normal line as:

y-y_0=-\dfrac{1}{f'(x_0)}(x-x_0)\\\\\\ y-(-4)=-\dfrac{1}{4}(x-2)\\\\\\y+4=-\dfrac{1}{4}x+\dfrac{1}{2}\\\\\\y=-\dfrac{1}{4}x+\dfrac{1}{2}-4\\\\\\\boxed{y=-\dfrac{1}{4}x-\dfrac{7}{2}}

Normal line (and every line) crosses x-axis when y = 0, so coordinates of A:

\boxed{y=0}\qquad\qquad\text{and}\\\\\\y=-\dfrac{1}{4}x-\dfrac{7}{2}\\\\\\&#10;0=-\dfrac{1}{4}x-\dfrac{7}{2}\\\\\\\dfrac{1}{4}x=-\dfrac{7}{2}\quad|\cdot4\\\\\\x=-\dfrac{7\cdot4}{2}\\\\\\x=-7\cdot2\\\\\\\boxed{x=-14}\\\\\\\boxed{A=(-14,0)}
8 0
3 years ago
Other questions:
  • The number a is smaller than the number b by 1/5 of b . By what part of a is b bigger than a?
    10·1 answer
  • A jet travels 500 miles in 2 hours. At this rate, how far could the jet fly in 8 hours? What is the rate of speed of the jet? PL
    14·1 answer
  • Is there infinite solutions, no solutions, or one solution for the equation -5x+10x+3=5x+6
    14·1 answer
  • -7y-6y which way do I go ?
    7·1 answer
  • Determine the vertex of the function y=|x+5|-2
    9·1 answer
  • Simplify 8(x-3)-4(2x-7)
    15·1 answer
  • Boris used 2/3/5 gallons of gas on Friday and 5/1/4 gallons of gas on saturday, how many gallons did he use on the two days comb
    12·1 answer
  • What does -(22) equal to?
    9·2 answers
  • Paul and Tammy went out to dinner and the total of their meals was $37.85. Paul spent $12.55 less than what Tammy spent. How muc
    11·1 answer
  • 2) through: (-4, 5) and (-5,0<br> what is the slope intercept form of the line
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!