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
schepotkina [342]
3 years ago
15

Could x = -5 be a solution to the inequality -6 < 3x + 9 < 21?

Mathematics
2 answers:
____ [38]3 years ago
8 0

<em>So you think that x = -5 is the solution for the inequality? Let's check it out.</em>

<em>(Check)</em>

<em>- Substitute x = -5 in the inequality</em>

<em />-6<em />

<em>If it was the symbol ≤ you'd be correct, but it's < so It's a bit wrong.</em>

<em />

<em>Now let's solve the inequality. Separate the inequality by parts.</em>

<em />\left \{ {{-6<em />

<em>Therefore, the inequality is true only when x > -5 or x < 4.</em>

<em />

<em>(Check)</em>

<em>- Substitute x = -4 in the inequality.</em>

<em />-6<em />

<em>The inequality is true for first case.</em>

<em>- Substitute x = 3 in the inequality</em>

<em />-6<em />

<em>The inequality is true for second case.</em>

<em />

<em>So the answer for inequality is -5 < x < 4</em>

<em />

<em>That means only {-4, -3, -2, ..., 3} can make the inequality true.</em>

musickatia [10]3 years ago
6 0

Answer:

<h2><u><em>x=−5<x<4</em></u></h2>

Step-by-step explanation:

You might be interested in
If f(x)=3/x+2- sqrt x-3 f(7)=?
Dovator [93]

To get the answer, you need to solve the equation for x = 7.

f(7) = 3/7 + 2 - sqrt(7) - 3.

= 3/7 - 1 - sqrt(7).

If you need to simplify it further:

= -4/7 - sqrt(7).

If you need it in decimal form:  = -3.2171798824

7 0
3 years ago
Read 2 more answers
Michael rented a truck for one day. there was a base fee of $19.95 , and there was an additional charge of 96 cents for each mil
Sati [7]
147.63 - 19.95 = 127.68, this is the cost of the miles driven, 127.68÷0.96 = 133 miles
3 0
3 years ago
The cost of C (in dollars) of making n watches is represented by C=15n+85. How many watches are made when the cost is $385?
hichkok12 [17]

well...

15 x 20 = 300

300+85 = 385


you can get 20 watches for $385


4 0
2 years ago
3- Product of two expressions H.C.F=<br>A. H.CF<br>B. L.C.M<br>C. H.C.F + L.C.M<br>D. H.C.P x L.C.M​
Mnenie [13.5K]

(i) The product of the two expressions is equal to the product of their factors. (ii) The product of the two expressions is equal to the product of their H.C.F. and L.C.M. 2.

8 0
3 years ago
Math Help
Slav-nsk [51]

Answer:

exponential growth function

Step-by-step explanation:

exponential growth function because the numbers are positive so it'll go up idk the number but until somebody else answers you can do process of elimination


3 0
3 years ago
Read 2 more answers
Other questions:
  • Please helppp I need help ASAP!
    9·1 answer
  • Calculate the sum of the infinite series
    14·1 answer
  • The equation of line n is 8x - 14y + 3 = 0. What is k if the graphs of n and kx - 7y + 10 = 0 are perpendicular?
    7·1 answer
  • I need the answer please
    14·1 answer
  • Robin purchased 3 1⁄2 ounces of whole wheat cereal for $1.40. What is the cost per ounce?
    12·1 answer
  • Why is it difficult to find length of the hypotenuse the same way the length of the legs can be found?
    10·2 answers
  • The distance from a point to a line
    10·1 answer
  • A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a
    7·1 answer
  • PLZZZZZZZZ HELPPPPPPPP!!!!
    6·1 answer
  • Find the volume of a cylinder whose circumference is 110 cm and height is 20 CM​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!