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
Nesterboy [21]
3 years ago
10

Need help plz help me

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 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.

The factors are + 6 and + 5, since

6 × 5 = + 30 and 6 + 5 = + 11, hence

(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

IgorC [24]3 years ago
4 0

Step-by-step explanation:

how could we get 30x^2?

6x × 5x

<em>so</em><em>,</em>

x^2 +6x+5x+30=0

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

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

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

x=-6 or x=-5

You might be interested in
The initial population of bacteria in a lab test is 400. The number of bacteria doubles every 30 minutes. Predict the bacteria p
vladimir1956 [14]
25,600 will be the bacteria population after doubling every 30 minutes for 3 hours.
6 0
2 years ago
The perimeter of a square is 66.8 cm. What is the side lengh of the square​
mylen [45]

Side length = 16.7 cm

Solution:

Perimeter of a square given = 66.8 cm

In a square four sides are equal.

The perimeter of a square = 4 × side

⇒ 4 × side = 66.8 cm

Divide both sides of the equation by 4 to equal the expression.

⇒ side = 66.8 ÷ 4

⇒ side = \frac{66.8}{4}

⇒ side = 16.7 cm

Hence, the side length of the square is 16.7 cm.

5 0
2 years ago
Make sure to SHOW WORK
attashe74 [19]
9/4=2.25
2.25-1= 1.25
7 0
2 years ago
Read 2 more answers
Make D the subject of S=D/T<br> You may use the flowchart to help you if you wish.
hammer [34]
Given the equation, S = D/T:

To make the D the subject of the equation, we can start by multiplying both sides by T to isolate D:

(T) S = D/T (T)

TS = D

Therefore, the final answer is D = TS
8 0
3 years ago
The first four multiples of 7 are 7, 14 21, and 28. Use this example to help you as you answer the questions below.
Pachacha [2.7K]

Answer:

For A. it would be 9, 18, 27, 36, 45, 54

For B. it would be 12, 24, 36, 48, 60, 72

For C. it would be 36

For D. it would be 3

Step-by-step explanation:

Hope this helps

6 0
2 years ago
Other questions:
  • How do I solve for Y when the problem is 10x-5y=15 ?
    8·2 answers
  • *I will mark you brainliest!!!!!*
    9·1 answer
  • Please help. Sara drives 72 miles on 3.2 gallons of gas. She uses this information to calculate how many miles per gallon she ca
    7·2 answers
  • Using the linear equation 3x+2y=6, express y in terms of x
    6·2 answers
  • two bags contain marbles. Bag A contains 112 marbles, and bag B contains 140 marbles.What percent fewer marbles does Bag A than
    8·2 answers
  • Write this decimal in numbers , Fifty-one thousandths​
    11·2 answers
  • A box with a square base and open top must have a volume of 97556 c m 3 cm3 . We wish to find the dimensions of the box that min
    12·1 answer
  • Find the sum of -38 + (-57)
    13·1 answer
  • PLS HELP ME W/ #8 ASAP
    15·1 answer
  • Hi i'm stup*d at math and im not sure :(
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!