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
Irina18 [472]
3 years ago
5

Find the value of x and y

Mathematics
1 answer:
Virty [35]3 years ago
3 0

Answer:

x=14

y=12

Step-by-step explanation:

so you add 3 plus 9 and 2 plus 4 with 8 and you should get x- 14 and y= 12

Hope this helps

You might be interested in
Please hurry! Thanks <3
Gwar [14]

Answer:

they match with each other

A -1

B-2

C-3

Step-by-step explanation:

6 0
2 years ago
What is the distance between points P(8, 5) and Q(2,-3) to the nearest tenth?
Fantom [35]
I will say its the correct answer
4 0
3 years ago
Does anyone know how to do the problem
salantis [7]
8x^3 + 2x^2 - 18x -12
6 0
3 years ago
Solve the equation by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are locat
zavuch27 [327]

Answer:

The equation contains exact roots at x = -4 and x = -1.

See attached image for the graph.

Step-by-step explanation:

We start by noticing that the expression on the left of the equal sign is a quadratic with leading term x^2, which means that its graph shows branches going up. Therefore:

1) if its vertex is ON the x axis, there would be one solution (root) to the equation.

2) if its vertex is below the x-axis, it is forced to cross it at two locations, giving then two real solutions (roots) to the equation.

3) if its vertex is above the x-axis, it will not have real solutions (roots) but only non-real ones.

So we proceed to examine the vertex's location, which is also a great way to decide on which set of points to use in order to plot its graph efficiently:

We recall that the x-position of the vertex for a quadratic function of the form f(x)=ax^2+bx+c is given by the expression: x_v=\frac{-b}{2a}

Since in our case a=1 and b=5, we get that the x-position of the vertex is: x_v=\frac{-b}{2a} \\x_v=\frac{-5}{2(1)}\\x_v=-\frac{5}{2}

Now we can find the y-value of the vertex by evaluating this quadratic expression for x = -5/2:

y_v=f(-\frac{5}{2})\\y_v=(-\frac{5}{2} )^2+5(-\frac{5}{2} )+4\\y_v=\frac{25}{4} -\frac{25}{2} +4\\\\y_v=\frac{25}{4} -\frac{50}{4}+\frac{16}{4} \\y_v=-\frac{9}{4}

This is a negative value, which points us to the case in which there must be two real solutions to the equation (two x-axis crossings of the parabola's branches).

We can now continue plotting different parabola's points, by selecting x-values to the right and to the left of the x_v=-\frac{5}{2}. Like for example x = -2 and x = -1 (moving towards the right) , and x = -3 and x = -4 (moving towards the left.

When evaluating the function at these points, we notice that two of them render zero (which indicates they are the actual roots of the equation):

f(-1) = (-1)^2+5(-1)+4= 1-5+4 = 0\\f(-4)=(-4)^2+5(-4)_4=16-20+4=0

The actual graph we can complete with this info is shown in the image attached, where the actual roots (x-axis crossings) are pictured in red.

Then, the two roots are: x = -1 and x = -4.

5 0
3 years ago
Find the length of side a.<br> 5<br> 3<br> O A. 16<br> O B. 34<br> O c. 2<br> O D. 4
xxMikexx [17]

Answer:

D

Step-by-step explanation:

a=\sqrt{c^{2} -b^{2} }

\sqrt{5^{2} -3^{2} } =4

a=4

5 0
3 years ago
Other questions:
  • an apple tree grew 8 feet tall to 10 feet tall over the course of a year what is the percentage change in the tree height ASAP P
    15·1 answer
  • Consider the exponential function f(x) = (15x). What is the value of the growth factor of the function
    7·2 answers
  • Combine like terms.<br> 3y + 4x² – 3x² – 2y + x2 + 2y – 3x3
    15·2 answers
  • What is 5.329 rounded to the nearest whole number
    10·2 answers
  • Which 2 statements are TRUE about Exponential Functions?
    8·1 answer
  • 5. A waiter earns $128 for 6 hours of work. The total included $86 in tips.
    15·1 answer
  • Can you help me with this its easy
    11·2 answers
  • RADICLES <br><br> Simplify square root 98<br><br> NEEDD HELP ASAP PLEASE!!!!
    6·1 answer
  • The Liu family buys 20 pounds of chicken at the local market for $50. Which equation can be used to represent the cost,
    10·1 answer
  • The book is sold for 5.4 dollars at a profit of 8% on the cost price what was the cost price
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!