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
Anon25 [30]
3 years ago
11

The point,(-2,3) is a solution to the following system. y>-2x-2 and y< 3true or false​

Mathematics
2 answers:
WINSTONCH [101]3 years ago
8 0

Answer: FALSE.

Step-by-step explanation:

Given the system of inequalities:

\left \{ {{y>-2x-2} \atop {y< 3}} \right.

We can know if the point (-2,3) is a solution to the following system with the graph of the system of inequalities.

 By definition the solution is the intersection region of all the solutions of the system of inequalities.

Knowing this and analizing the graph attached, we can notice that the point (-2,3) is not included in the intersection region (Remember that with symbols "<" and ">" the lines are dashed and any point that lines of these lines is not included in the intersection region).

Therefore, it is not a solution to the system.

bija089 [108]3 years ago
4 0

Answer:

false

Step-by-step explanation:

y>-2x-2

3>-2(-2) -2

3>4 -2

3>2

y< 3

3< 3

You might be interested in
Select the correct answer.
Vikki [24]

Answer:

the answer is A. 3225

Step-by-step explanation:

S₃₀ = 30/2 [ 2 x 6 + (30 - 1) x 7 ]

15 [ 12 + 29 x 7 ]

15 [ 12 + 203 ]

15 x 215

=3225

3 0
2 years ago
Carlos has taken an initial dose of a prescription medication.
Marat540 [252]

Answer:

3.48 hours

Step-by-step explanation:

The equation is:

M(t)=20 e^{-0.86t}

Where

M(t) is the amount of medication remaining in mg

t is the time it takes, in hours

The questions asks HOW LONG it will take to make the remaining medication to 1 milligrams (1 mg)??

We have to substitute M(t) with "1" and find the corresponding value of "t". We will use natural log to solve this. Shown below:

M(t)=20e^{-0.86t}\\1=20e^{-0.86t}\\0.05=e^{-0.86t}\\Ln(0.05)=Ln(e^{-0.86t})\\Ln(0.05)=(-0.86t)Ln(e)\\t=\frac{Ln(0.05)}{-0.86}\\t=3.48

<u>Note: </u> Ln(e) = 1

This means, the amount of time it will take is about 3.48 hours

8 0
3 years ago
What is the area of an equilateral triangle that has a perimeter of 36 centimeters? Round to the nearest square centimeter.
Vika [28.1K]

Answer:

(a is size of side of triangle)

the perimeter of equilateral triangle =3a

or, 36=3a

Thus, a = 13cm

area of equilateral triangle

=√3/4*(a^2 )

=√3/4*(13^2)

=73cm^2

5 0
2 years ago
For each part below, use
Law Incorporation [45]

Answer:

a.) 70*

b.) 60*

Step-by-step explanation:

a.) An isosceles triangle has two angles that are equal. The one other angle is 40*, meaning you have to subtract that from 180 and then divide by 2.

b.) An equilateral triangle has three equal angles. Divide 180 by 3.

8 0
3 years ago
Read 2 more answers
Need help!!!<br><br> which addition matches the problem...
Tom [10]

Answer:

The addition that matches the problem is the first one.

Step-by-step explanation:

The red line goes back 8 so it is a -8 and the blue line goes forward 4 so it is a postive 4.

4 + (-8) = -4

6 0
3 years ago
Other questions:
  • Round 736 to nearest ten
    13·2 answers
  • The sales volume for an online bookstore was 432 books in the first week. Then due to the new policy of tax for on-line shopping
    7·1 answer
  • Brian deposited $4000 into an account with 5.4% interest, compounded monthly. Assuming that no withdrawals are made, how much wi
    14·1 answer
  • I need help really bad I'm gonna give 25 points who helps me
    8·1 answer
  • Please help with this problem!
    12·2 answers
  • What is the value of the expression 6x - y when x = 3 and y = 1? (5 points)
    10·1 answer
  • HUH giving out brainiest
    11·1 answer
  • Valor de 3y+5°=2y-4°
    14·1 answer
  • The difference between a number x and 3 is no more than 2
    13·2 answers
  • BRAINLIEST FOR THE RIGHT ANSWERRR<br><br> If useful, points are (1,0) (0,-4)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!