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
Rashid [163]
3 years ago
13

X2-11x+18=0 need help!

Mathematics
2 answers:
KengaRu [80]3 years ago
6 0

Answer:

x = 2 or

x = 9

Step-by-step explanation:

x² - 11x + 18 = 0

x² - 9x - 2x + 18 = 0

x(x - 9) - 2(x - 9) = 0

(x - 2)(x - 9) = 0

x - 2 = 0 or x - 9 = 0

x = 2 or x = 9

Thus, x = 2 or 9

-<u>The</u><u>U</u><u>n</u><u>k</u><u>n</u><u>o</u><u>w</u><u>n</u><u>S</u><u>c</u><u>i</u><u>e</u><u>n</u><u>t</u><u>i</u><u>s</u><u>t</u>

yulyashka [42]3 years ago
5 0

Answer:

x = 2, x = 9

Step-by-step explanation:

Given

x² - 11x + 18 = 0

Consider the factors of the constant term (+ 18) which sum to give the coefficient of the x- term (- 11)

The factors are - 2 and - 9 , since

- 2 × - 9 = + 18 and - 2 - 9 = - 11 , thus

(x - 2)(x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x - 9 = 0 ⇒ x = 9

You might be interested in
Find the value of :x^2+2xy+y^2-3x-3y-1<br> have: x^2-y=y^2-x (x<img src="https://tex.z-dn.net/?f=%5Cneq" id="TexFormula1" title=
lidiya [134]

Answer: The answer is x^2+2xy+2y^2–3x–3y–1

Step-by-step explanation: Move 2 to the left of y^2.

7 0
3 years ago
Explain for both problems and tell me the work that comes with it please and thank you
Anton [14]

Problem 33

Use the distributive property on the side containing parentheses of each expression and compare it to the other side.

a) 3(5a + 3) = 15a + 9 not equal to 15a + 6

b) 2(7b - 2) = 14b - 4 not equal to 14b + 4

c) 5(2c + 3) = 10c + 15 not equal to 7c + 8

d) 3(d + 5/3) = 3d + 5 which is equal to 3d + 5

Answer for problem 33: d)

Problem 34

Use a proportion. Let the unknown number of bowls be x. The proportion is made up of two ratios that are set equal to each other. Set each ratio as a ratio of the number of avocados per bowls of guacamole. 3 avocados per 1 bowl (3/1) equals 17 avocados per x bowls (17/x).

\dfrac{3}{1} = \dfrac{17}{x}

3x = 17 \times 1

3x = 17

x = \dfrac{17}{3}

x = 5 \dfrac{2}{3}

Answer: 17/3 full bowls which is the same as 5 2/3 full bowls.

3 0
3 years ago
Pls I need help I will mark Brainly
Margarita [4]

Answer:

(10⁰x 10¹ x 1¹⁰)< (10⁰ + 10¹x 1¹⁰)<(10⁰ + 10¹ + 1¹⁰)< (10 x 10¹)

Step-by-step explanation:

increasing order-

(10⁰x 10¹ x 1¹⁰)

(10⁰ + 10¹x 1¹⁰)

(10⁰ + 10¹ + 1¹⁰)

(10 x 10¹)

7 0
3 years ago
A train leaves at 11:32 and arrives at 13:24. It travelled at an average speed of 85 km/h.
Blababa [14]

Answer:

<h2>33.2Km</h2>

Step-by-step explanation:

<h3>Time used for journey = </h3>

13 : 24 - 11 : 32 = 1 : 92

1 : 92 = 1 hour 92 minutes

1 hour 92 minutes = 2 hours 32 minutes

<h3>changing 32 minutes to hours</h3>

1 h = 60 min

x = 32 min

x= 32 /60

x= 8/15 hours

<h3>Adding the 2hours to 8/15 hours</h3>

8/15 h + 2 h = 38 / 15

<h3>Using formula for distance</h3>

Distance = Speed × Time

Distance = 85km / h × 38 /15 h

Distance = 33.15 km

To 1DP = 33.2

3 0
2 years ago
The diameter of a Frisbee is 12 inches. what's the area of the Frisbee?
xenn [34]
A= πr² = π × 6² = "113.1" is the area of the frisbee. 

Please put me as brainliest.
7 0
3 years ago
Other questions:
  • 5.607 is what percent of 89 step by step
    11·1 answer
  • Two triangles with the same corresponding side lengths will be congruent is known as the ____.
    15·1 answer
  • What is the radius of a circle with a circumference 13ft
    8·1 answer
  • Y=-2x+5<br> X | Y<br> ____<br> 5<br> -1<br> 2<br> 0
    5·1 answer
  • The area of a given hexagon is equal to the area of an equilateral triangle whose perimeter is 36 inches. Find the length of a s
    12·2 answers
  • Mustafa is flying his kite, and Ana is watching from 20 m away, as shown. From Ana's perspective there is an
    8·2 answers
  • Please help me with this problem ASAP
    5·1 answer
  • Which fraction is equivalent to -3/2
    6·2 answers
  • A first number plus twice a second number is 8 twice the first number plus the second totals 25
    9·1 answer
  • NO LINKS!! Explain your answer (show the support by showing the changes in x and y on your table). If the relationship is linear
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!