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
Vilka [71]
2 years ago
9

Solve by factorising x² + 11x + 30 = 0 dont get think one could someone explain this please.

Mathematics
2 answers:
nalin [4]2 years ago
4 0

Answer:

x={-5,-6}

Step-by-step explanation:

x²+11x+30=0

x²+5x+6x+30=0 (as 5*6=30 and 5+6=11)

x(x+5)+6(x+5)=0

(x+5)(x+6)=0

so

x+5=0

x+6=0

therefore

x=-5

x=-6

melomori [17]2 years ago
3 0

Answer:

x = - 6, x = - 5

Step-by-step explanation:

Given

x² + 11x + 30 = 0

Consider the factors of the constant term (+ 30) which sum to give the coefficient of the x- term (+ 11)

The factors are + 6 and + 5 , since

6 × 5 = 30 and 6 + 5 = 11, then

x² + 11x + 30 = 0

(x + 6)(x + 5) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 6 = 0 ⇒ x = - 6

x + 5 = 0 ⇒ x = - 5

You might be interested in
What is the length of the shorter base of the Little Trapezoid trail?
valentina_108 [34]

Answer:

The length of the shorter base of the little trapezoid trail is 1 mi.

Step-by-step explanation:

Let the shorter base of the large trapezoid is S and the larger base of the large trapezoid is L.

Similarly, assume that the shorter base of the small trapezoid is s and the larger base of the small trapezoid is l.

Since, the trapezoids are similar, so

\frac{L}{l} = \frac{S}{s}

Now, given that S = 2 mi, L = 8 mi and l = 4 mi and we have to find s.

So, s = \frac{S \times l}{L} = \frac{4 \times 2}{8} = 1 mi. (Answer)

3 0
3 years ago
Thank u, next by Arianna Grande is 3.5 minutes long. From beginning to end, there are 350
wel
350 beats/ 3.5 minutes

100 beats per minute for the song.
8 0
2 years ago
Read 2 more answers
Solve for a,b 2^a × 2^b=144 value of a+3b+2 is...<br><br>please solve it...urgent...​
Nadya [2.5K]

Answer:

its a simple for me

Step-by-step explanation:

2+144 i

4 0
2 years ago
. Office productivity is relatively low when the employees feel no stress about their work or job security. However, high levels
Ray Of Light [21]

Answer:

Step-by-step explanation:

The plot chart below best represents the relationship between stress and productivity in the workplace. As seen in the chart both high and low levels of stress equate to very low productivity levels for employees in the workplace. While just enough stress creates very productive employees. This tends to be because employees are worried about the possibility of losing their jobs so they work hard in order to keep the job but are not so worried that they think it will happen tomorrow and become burned out.

3 0
3 years ago
PLS HELP WILL MARK AS BRAINLIEST
soldier1979 [14.2K]

Answer:

26. the y intercept is -6

27. the y intercept is 2

28. the y intercept is -3

29. I cant answer because it is cut off in the picture...

Step-by-step explanation:

These equations follow a simple formula- the slope formula

y=mx+b

In this formula:

b is the y intercept

m is the slope that is multiplied by x

hope this helps:)

please crown me brainliest!!!

3 0
2 years ago
Other questions:
  • Y=1/8x+c is the family of solutions of the differential equation y'=-8y^2, find the solution that satisfies the initial conditio
    12·1 answer
  • What is the solution set for the quadratic equation x squared - 16 equals 0
    11·2 answers
  • At the start of the week, you could run for 88 minutes. By the end of the week, you could run for 1515 minutes. Which proportion
    10·1 answer
  • Describe how the graph is related to y=x^2
    7·1 answer
  • Find the equation of the line below. (2, 10) ) (1, 5)
    9·1 answer
  • PLEASEEE HELPPP its due in 10 mins PLSSS
    6·1 answer
  • Does anyone know this and can help me on a few problems please
    9·1 answer
  • Help me with this q uesitpn please
    12·1 answer
  • Simplify this ratio
    12·2 answers
  • The measurements of a circular object are given in the ratio table.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!