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
Elodia [21]
3 years ago
14

Factor 13x2 + 13x + 9x + 9 = 0​

Mathematics
1 answer:
Alex787 [66]3 years ago
8 0

Answer:

\Large \boxed{x=\frac{-9}{13} \ \ \mathrm{or} \ \ x = -1}}

Step-by-step explanation:

13x^2  + 13x + 9x + 9 = 0

Factor the expression.

13x(x+1)+9(x+1)=0

Take (x + 1) as a common factor.

(13x+9)(x+1)=0

Set factors equal to 0.

First possibility:

13x + 9 = 0

13x=-9

\displaystyle x=\frac{-9}{13}

Second possibility:

x+1=0

x=-1

You might be interested in
Jan is cutting a rectangular pan of brownies.She cut them in half and then cut each of those halves in half again.She did the sa
kumpel [21]
I drew a picture!!
.
Maybe you didn't.
.
I like to picture things though.
.
Ok, a rectangle cut in half. 
.
Ok, by definition of "half," just multiply the number of rectangles by 2.
.
1 x 2 = 2 after cutting the brownies in half.
.
2 x 2 = 4 after cutting it in half again.
.
4 rectangles now!!
.
Doing it the other way... pretend you are starting over from scratch.
.
A new batch of brownies!
.
But still pay attention to what you already cut. 
.
Cut down the middle the other direction.
.
What's 4 x 2?
.
8.
.
Now, finally, we multiply the half of the half brownies.
.
What's 8 x 2?
.
16.
.
16 slices.

7 0
3 years ago
Write an equation for a circle with a radius of 5 and a center located at point (2,8)
Dmitrij [34]
A circles equation is
(x – h)^2 + (y – k)^2 = r^2
The center is at the point (h, k)
The radius is r.

Your circles equation is:
(x – 2)^2 + (y – 8)^2 = 5^2
5 0
3 years ago
What is the slope of the line for the equation y = –2(x - 10) + 8?
PSYCHO15rus [73]
Y=X2+28 PEMDAS says first do parentheses
exponent
multiply
divide
add
subtract
3 0
3 years ago
Please help me out!!!!!!!
Alex

the answer is easy just take 2,000 and times it by 2 then 4,000 x 2, then 8,000 x 2, 16,000 x 2, 32000 x 2, 64,000 x 2 <u>the answer is 128,000</u>

7 0
3 years ago
Kevin and Randy Muise have a jar containing 62 coins, all of which are either quarters or nickels. The total value of the coins
KiRa [710]

Answer:

23 nickels, 39 quarters

Step-by-step explanation:

Let x = the number of quarters

Let y = the number of nickels

x + y = 62     x = 62 - y

.25x + .05y = 10.90              

Multiply both sides of the equation by 100 to get rid of the decimal points.

25x + 5y = 1090

25(62-y) + 5y = 1090

1550 - 25y + 5y = 1090

1550 - 1550 - 25y + 5y = 1090 - 1550

-20y = -460

-20y / -20 = -460 / -20

y = 23 nickels

x = 62 - y

x = 62 - 23

x = 39 quarters

5 0
2 years ago
Read 2 more answers
Other questions:
  • Bob and Ray mix 84 chocolate chips evenly into 7 cups of cookie dough. Bob thinks there will be 14 chocolate chips in each cup o
    7·1 answer
  • if your average stride length is 2.6 feet how many strides will it take you to walk to grandparents house
    15·1 answer
  • Guys, please help me with this problem. Thank you all.
    9·1 answer
  • 3.8x = −104.12 what is the answer to the question
    7·1 answer
  • 2. Exercise 18, 19 Page 188. Determine if the following statements are true. If a statement is true, give a proof from the defin
    15·2 answers
  • Encontrar el valor d la variable
    11·1 answer
  • Find the area of the triangle.<br> 3 cm<br> 11 cm<br> C с<br> 14.5 cm
    15·1 answer
  • In ΔPQR, what is the m∠Q? Enter your answer in the box.
    5·1 answer
  • Adrian are 3 ani, iar tatăl lui are 34 de ani. Peste câți ani Adrian va fi de două ori mai tânăr decât tatăl său?
    10·1 answer
  • 51. q(x) = 2 * (x - 1) ^ 2 + 5 , what is the value of q(- 3) ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!