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
damaskus [11]
2 years ago
15

Solve this quadratic inequalitie with detailed full explanation

Mathematics
2 answers:
ANTONII [103]2 years ago
7 0

x^2\leq16\\x\leq 4 \wedge x\geq -4\\x\in\langle-4,4\rangle

different approach:

x^2\leq16\\x^2-16\leq0\\(x-4)(x+4)\leq0

see attachment

x\in\langle-4,4\rangle

Blizzard [7]2 years ago
5 0

~~~~~~x^2 \leq 16\\\\\implies -\sqrt{16} \leq x\leq  \sqrt{16}\\\\\implies -4\leq x \leq 4\\\\\text{Interval notation:}~ [-4,4]

You might be interested in
You're working with a customer that's interested in buying a keyboard that costs 250 dollars. They want to know what their total
rusak2 [61]

Answer:

I think it is 3.5

Step-by-step explanation:

8.5:250*100 =

(8.5*100):250 =

850:250 = 3.4

3 0
2 years ago
The cost of printing a catalog of the products that your company distributes is a flat rate of $52 plus $0.20 per copy. Let C re
yanalaym [24]
Given:
Cost of printing a catalog: flat rate of $52 and $0.20 per copy.

C = 52 + 0.20x

C is the total cost of printing x number of copies.

x = 500
C = 52 + 0.20(500) = 52 + 100 = 152

x = 1000
C = 52 + 0.20(1000) = 52 + 200 = 252

x = 1500
C = 52 + 0.20(1500) = 52 + 300 = 352

x = 2000
C = 52 + 0.20(2000) = 52 + 400 = 452

x = 2500
C = 52 + 0.20(2500) = 52 + 500 = 552


4 0
3 years ago
Read 2 more answers
3/4 of analisa's friends came to her birthday party. express this fraction as a percant and a decimal.
icang [17]

Answer:

0.75 And 75%

Step-by-step explanation:

If 3/4 came then 25, 50, 75, 100 what is the 3rd number of of those 4

8 0
2 years ago
The gravitational potential energy of an object is
Alchen [17]

Answer:

h=p/(mg)

Step-by-step explanation:

P=mgh

solving for h,

h=p/(mg)

7 0
2 years ago
Please help
user100 [1]

Answer:

Length of garden will be 30 metres.

Step-by-step explanation:

Let the Width of garden be x metres.

then,

Length of garden will be (x+6) metres.

Area = Length × Breadth

720 = x X (c+6)

720 = x²+6x

0 = x²+6x-720

As we can see above equation is a quadratic equation in the form of ax²+bx+C.

so,

=  \frac{ - b ±  \sqrt{{b}^{2} - 4ac}  }{2a}  \\ =   \frac{ - 6 ±   \sqrt{{6}^{2} - 4 \times 1 \times  - 720}  }{2}  \\ =    \frac{ - 6 ±  \sqrt{36 + 2880} }{2}  \\  =   \frac{ - 6 ±  \sqrt{2916} }{2}  \\  =   \frac{ - 6 ± 54}{2}\\= \frac{-6+54}{2} ... \frac{ - 6 - 54}{2}  \\  =  \frac{48}{2} ... \frac{ - 60}{2}  \\  = 24... - 30

One of the Roots of the Quadratic equation is 24 and other is -30.

And as we know width of any garden cannot be negative so the width of garden will be 24 metres.

As we got the width,

adding 6 to it will give us the Length,

So,

24 metres + 6 = 30 metres.

Length of the garden is 30 metres.

Hope It Helped You ;)

Follow me on Instagram,

@khuturr_

8 0
3 years ago
Other questions:
  • Which best describes the function on the graph?
    13·1 answer
  • If 3x +4y = 7 and 2y = 6x + 6, then what is xy
    8·1 answer
  • Solve the equation x-3=23<br> X=
    8·2 answers
  • The school band is comprised of middle school students and high school students, but it always has the same maximum capacity. La
    12·1 answer
  • Question is the picture:
    8·1 answer
  • How do you find 19% of 72
    6·2 answers
  • Can someone help me with this math question?
    7·1 answer
  • Plz help me solve this question?
    6·1 answer
  • Dawn enjoys exercising on the hiking trail by her house. She ran 2/5 of
    5·1 answer
  • Same directions as question #1<br><br> Sn = ( -1 )n + 1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!