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
Art [367]
3 years ago
7

Solve x^2 - 13x + 40 = 0​

Mathematics
1 answer:
hodyreva [135]3 years ago
4 0

Answer:

(x-8)(x-5)

Step-by-step explanation:

The only way to solve this equation is to factor it. You would have to use the sum and product rule.

You might be interested in
Yoko runs10 miles in75 minutes. At the same rate, how many miles would she run in 69 minutes?
Ostrovityanka [42]
She would run 9.2 miles.
3 0
3 years ago
Read 2 more answers
HELP ASAP ...........
dedylja [7]

Answer:

A

Step-by-step explanation:

Given

y - 2x - 8 = 0 ( add 2x + 8 to both sides )

y = 2x + 8 → (1)

y² + 8x = 0 → (2)

Substitute y = 2x + 8 into (2)

(2x + 8)² + 8x = 0 ← expand left side using FOIL and simplify

4x² + 32x + 64 + 8x = 0

4x² + 40x + 64 = 0 ( divide through by 4 )

x² + 10x + 16 = 0 ← in standard form

(x + 8)(x + 2) = 0 ← in factored form

x + 8 = 0 ⇒ x = - 8

x + 2 = 0 ⇒ x = - 2

Substitute these values into (1) for corresponding values of y

x = - 8 : y = 2(- 8) + 8 = - 16 + 8 = - 8 ⇒ P (- 8, - 8)

x = - 2 : y = 2(- 2) + 8 = - 4 + 8 = 4 ⇒ Q (- 2, 4 )

Calculate the length of PQ using the distance formula

PQ = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = P (- 8, - 8) and (x₂, y₂ ) = Q (- 2, 4 )

PQ = \sqrt{(-2-(-8))^2+(4-(-8))^2}

      = \sqrt{(-2+8)^2+(4+8)^2}

       = \sqrt{6^2+12^2}

       = \sqrt{36+144}

       = \sqrt{180}

       = \sqrt{36(5)}

       = \sqrt{36} × \sqrt{5}

        = 6\sqrt{5} → A

8 0
2 years ago
Leo is constructing a tangent line from point Q to circle P. What is his next step?
bezimeni [28]

Answer:

hello your question has a missing diagram attached below is the missing diagram

answer :  

Mark the point of intersection S of circles R and P, and construct line QS ( option 2 )

Step-by-step explanation:

when constructing a tangent line from one point ( lets say Q as seen in the question ) to a circle P. The next step should be to mark a point of intersection between  the given circles and then construct a line through it

6 0
2 years ago
What's the answer to this problem
Grace [21]

Answer:

3' 10'' if I'm not mistaken.

Step-by-step explanation:

5 feet subtracted by 1 foot is 4 feet, 6 inches subtracted by 8 inches sets us back a foot and leaves 10 inches on the previous foot.

7 0
3 years ago
In the figure below, triangle JKL is isosceles, with JK LK, and triangle LMN is equilateral.
Veronika [31]

Answer:

44+

Step-by-step explanation:

just got it correct

3 0
2 years ago
Other questions:
  • Which of the following shows the extraneous solution(s) to the logarithmic equation? log4 (x) + log4(x - 3) = log4 (-7x + 21)
    13·2 answers
  • For every 4 minutes he runs, he walks for 5 minutes. Yesterday he walked for 35 minutes. How many minutes did he run?
    15·1 answer
  • Can someone help me with these problems? The majority of them I have answers but I don't understand them. Thanks!
    5·1 answer
  • Write a multiplication sentence that shows the zero property of multiplication. Explain why it shows this property.
    11·1 answer
  • What steps can you use to solve the equation 9 equals Y +4
    14·1 answer
  • Angles round a point will always add up to ________⁰​
    9·1 answer
  • What is 30 times the square root 30 divided by 3 times the square of 15
    8·1 answer
  • 3- EL MÉDICO LES DIJO QUE ES IMPORTANTE CONSUMIR 8 VASOS DE AGUA DE 250 ML DIARIAMENTE.
    5·1 answer
  • Solve the following systems. <br>8x -2y = -16<br> y = 8 + 4x<br>and<br>7x - y = 2<br>-7x + y = 2​
    9·1 answer
  • The following shape has 1 pair of parallel sides. What is the area of the shape?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!