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
Roman55 [17]
3 years ago
14

Solve and explain please

Mathematics
2 answers:
lilavasa [31]3 years ago
7 0

Answer:

j₁ = - 2

j₂ = - 9

Step-by-step explanation:

j² + 11j + 18 = 0

j² + 9j + 2j + 18 = 0

j(j+ 9) + 2(j + 9) = 0

(j + 2)(j + 9) = 0

j + 2 = 0 => j₁ = - 2

j + 9 = 0 => j₂ = - 9

Ann [662]3 years ago
3 0

Answer:

j= -9, -2

Step-by-step explanation:

(j+9)(j+2)

j=-9, -2

You might be interested in
The mean of 5,x,10,6,12 is 9. Find x
Wewaii [24]

Answer:

<h2>12</h2>

Solution,

Summation FX= 5+10+6+12+X

=33+x

N(total no.of items)=5

Now,

Mean= summation FX/N

or 9=33+X/5

or 9*5=33+X ( cross multiplication)

or 45=33+X

or -x=33-45

or -x=-12

X=12

Hope this helps...

Good luck on your assignment..

4 0
4 years ago
Read 2 more answers
A given line has the equation 2x + 12y = −1.
ludmilkaskok [199]
2x + 12y = -1
12y = -2x - 1
y = - 1/6x - 1/12...slope here is -1/6. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So our perpendicular line will need a slope of 6.

y = mx + b
slope(m) = 6
(0,9)...x = 0 and y = 9
sub and find b, the y int
9 = 6(0) + b
9 = b

so ur perpendicular equation is : y = 6x + 9 <==
4 0
4 years ago
Read 2 more answers
The reference angle for an angle whose measure is -395° is _____.
kirill [66]
The answer above is most likely B. Subtract 395 from 360 to get 35. 360 is a full circle which is why you subtract it. 
7 0
3 years ago
Help me please I need help
zaharov [31]

Answer:

7 ÷ 5

Step-by-step explanation:

1/5 of 7 is equal to 1/5 times 7/1, which will simplify to 7/5, or 7 ÷ 5.

5 0
4 years ago
Read 2 more answers
Image 1<br> ____________________________________________<br> image 2
Anit [1.1K]
Cosine of angle F = adjacent side / hypotenuse
Cosine of angle F = 60/61 Option C

In image 2, we have to find out the adjacent side
adjacent side =√ 41² - 40² = √81 = 9

Cosine of angle X = 9/41
Option C


4 0
3 years ago
Other questions:
  • Yoshi saved $5 each week for 23 weeks. What is the total amount of money he saved. Use an area model to solve
    14·2 answers
  • What is 457_73+673×77+8_15528_6388×728_2_6×82992=
    14·1 answer
  • In a two-tailed 2-sample z-test you find a P-Value of 0.0278. At what level of significance would you choose to reject the null
    9·1 answer
  • 1+3x=-5+x<br><img src="https://tex.z-dn.net/?f=1%20%2B%203x%20%3D%20%20-%205%20%2Bx" id="TexFormula1" title="1 + 3x = - 5 +x" a
    9·1 answer
  • What is the volume of a cylinder with a radius of 7 and the height of 9​
    7·2 answers
  • A polygon is composed of two or more line segments?
    8·2 answers
  • :) pls help! spinny things
    15·2 answers
  • Solve the following inequality: 6x-4 3<br> B.x&lt;3<br> C.x≤3<br> D. no solution
    12·2 answers
  • What are the domain and the range ​
    15·1 answer
  • Find the value of x in the triangle shown below.<br> 56°<br> 4<br> 4.5<br> 4
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!