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
SVEN [57.7K]
3 years ago
9

Sometimes the best way to solve an equation, a system of equations, or a system of inequalities is to look at a graph of the equ

ation or the system. Finding solutions on graphs is different from using algebraic properties to solve for a variable, but it gives the same results. For each of the three graphs, describe how and why the graph shows the solutions of the equation or system of equations or inequalities.
Mathematics
1 answer:
PIT_PIT [208]3 years ago
6 0

Answer:

When we solve a system of equations, we are looking for the points at which both graphs intercept. Solving a system of equations sometimes can be hard, and you should use other methods -Like numeric methods- to solve it. That's why sometimes is easier to look at the graph of the equation.

To solve a equation, system of equations or a system of inequalities, we should graph each of the equations separatedly, and the result will be the point at which the functions intercept or a single function intercepts the x-axis.

If the function does not intercept another function or the x-axis, then it has no real roots. The number of solutions an equation can have, will depend on the degree of the equation.

You might be interested in
YALL I need your help! I need to turn this is asap
Gemiola [76]

Answer:

$1.50

25% of 6 is 1.5

5 0
3 years ago
Read 2 more answers
In a parallel circuit, the supply voltage is 120 V, 60 Hz. The resistance is 30 Ω and the inductive reactance is 40 Ω. What is t
kvasek [131]

Given : supply voltage = 120V;60 Hz

Inductive Reactance (X_{L}) = 40 Ω

The inductive reactance is given by the formula, X_{L}=Lw, where L is inductance and w is given by formula, w = 2\pi(frequency)

Apply this, we can say that, L = \frac{X_{L}}{2\pi (frequency)}  = \frac{40}{2(3.14)(60)} = 0.106157 H = 106.157 mH

8 0
3 years ago
Use the distributive property to simplify the expression: -5(4W - 3s + 1)
Eva8 [605]

Answer:

-20w+15s-5

Step-by-step explanation:

-5*4w= -20w

-5*-3s= 15s

-5*1= -5

7 0
3 years ago
Help now fast..................................
Yuliya22 [10]

Answer:

C

Step-by-step explanation:

There are 6 units in the numberline, and 2 are shaded. So, 2/6 are shaded.

8 0
3 years ago
Help me i need to submit to my teacher by 8pm​
Vladimir [108]

Please see the figure. We'll first work out half the area of the rounded triangle, half the unshaded part, then double it, then subtract it from the big square.

Half the area is the circular sector PTQ (with center P, arc TQ) minus the right triangle PUT.

A/2 = area(sector PTQ) - area(triangle PUT)

The triangle is half of equilateral triangle PQT, so a 30/60/90 right triangle so we know the sides are in ratio 1:√3:2 so

TU = (7/2)√3

area(PUT) = (1/2) (7/2)(7/2)√3 = (49/8)√3

area(sector PTQ) = (angle TQP / 360°) πr^2

We know angle TQP is 60° because TQP is equilateral.  r=7.

area(sector PTQ) = (60°/360°) π (7²) = 49π/6

Putting it together,

A/2 = area(sector PTQ) - area(triangle PUT)

A = 2(49π/6 -  (49/8)√3)

A = 49(π/3 - √3/4) square cm

I hate ruining a nice exact answer with an approximation, but they seem to be asking.

A ≈ 30.095057615914535

Check:

I'm not sure how to check it.  I'd estimate it's about 25% bigger than equilateral triangle PQT with area (√3/4)7² ≈ 21.2, so around 27. 30 seems reasonable.

Now the real area we seek is the big square PQRS minus A, so

area = 7² - 30.095057615914535 = 18.904942384086 sq cm

They want square meters for some reason; we scale by (1/100)²

Answer: 0.00189 square meters

7 0
3 years ago
Other questions:
  • for independence day celebration 25000 flags were distributed to 70 schools .if 40 shcool receive 250 each and the remainder dis
    13·1 answer
  • A right pyramid that is 12 feet tall has a square base whose side length is 5 feet. What is its slant height, what is the length
    10·1 answer
  • How to Write the numbers 0.253 in two other forms
    5·1 answer
  • How to get the sum of 3/5 3/4
    8·1 answer
  • X/7=21 what is the answer
    6·2 answers
  • (3+h)^3-27/h<br> Lim---&gt;0 <br> help pls. ...?
    13·1 answer
  • Which is more, 24 quarts or 7 gallons?
    11·2 answers
  • Can someone pls help
    15·2 answers
  • PLEASE HELP YOU WILL HET 100 POINTS AND BRAINLIEST IF ANSWERED RIGHT PLEASE HELP YOU WILL HET 100 POINTS AND BRAINLIEST IF ANSWE
    15·2 answers
  • (1 point)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!