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
Tatiana [17]
3 years ago
5

A park has 22 elm trees. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are

13 healthy elm trees left. Write and solve an equation to find the number of elm trees that were removed. Let x represent the number of elm trees removed.
Mathematics
1 answer:
serg [7]3 years ago
3 0

Answer: 9 elm trees were removed.

Step-by-step explanation:

Let x represent the number of elm trees removed.

The total number of elm trees in the park is 22. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are 13 healthy elm trees left. The equation to find the number of elm trees that were removed would be

x + 13 = 22

Subtracting 13 from the left hand side and the right hand side of the equation, it becomes

x + 13 - 13 = 22 - 13

x = 9

You might be interested in
The temperature is 8° Fahrenheit. If the weatherman predicts the
Zina [86]

Answer:

-4 degrees Farenheit

Step-by-step explanation:

8-12=-4

6 0
3 years ago
Read 2 more answers
2. Consider the function, f(x)=x^3+x^2-9x-9
Sedaia [141]

The intercepts of the graph are:

x-axis interception: \left(-1,\:0\right),\:\left(-3,\:0\right),\:\left(3,\:0\right).

y-axis interception: \left(0,\:-9\right).

See the graph of the function f(x)=x^3+x^2-9x-9  in the attached image.

<h3>Constructing a graph</h3>

For constructing a graph we have the following steps:

  • Determine the range of values for x of your graph.

For this exercise, for example, we can define a range -4<x<4.  In others words, the values of x will be in this interval.

  • Determine the points

Replace these x-values in the given equation. For example:

When x=-4, we will have: \left(-4\right)^3+\left(-4\right)^2-9\left(-4\right)-9=-21.  Do this for the all x-values of your ranges.

See the results for this step in the attached table.

  • Draw the graph

Mark the points <u>x</u> and<u> y</u> that you found in the last step. After that, connect the dots to draw the graph.

The attached image shows the graph for the given function.

<h3>Find the x- and y-intercepts</h3>

The intercepts are points that crosses the axes of your plot. From your graph is possible to see:

x-axis interception points (y=f(x)=0)  are: \left(-1,\:0\right),\:\left(-3,\:0\right),\:\left(3,\:0\right).

y-axis interception point (x=0) is: \left(0,\:-9\right).

Learn more about intercepts of the graph here:

brainly.com/question/4504979

5 0
2 years ago
I really need help and if you give wrong answer or link then you are gonna be reported!
k0ka [10]

Answer:

hope it helps you.......

3 0
2 years ago
What is the mean of the data set?<br> 17, 24, 26, 13<br> 4<br> 13<br> 20<br> 80
a_sh-v [17]

Answer:

20

Step-by-step explanation:

You need to add all four then divide the answer by 4.

Hope this helps.

6 0
3 years ago
Read 2 more answers
22.4 cm<br> 18.1 cm<br> 28 cm<br> What’s the volume of the triangular prism
Elena L [17]

Answer:19.3

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Assume that you plan to use a significance level of α= 0.05 to test the claim that p1 = p2. Use the given sample sizes and numbe
    10·1 answer
  • How can I simplify these?
    14·1 answer
  • The composition do,0.75(x,y) ∘ do,2(x,y) is applied to △lmn to create △l''m''n''. which statements must be true regarding the tw
    8·2 answers
  • X2-3x+2=0 solve this
    8·1 answer
  • Equilateral triangle ABC has an area of \sqrt{3}√ ​3 ​ ​​ . If the shaded region has an area of \piπK − \sqrt{3}√ ​3 ​ ​​ , what
    13·1 answer
  • The graph of the function is symmetric with respect to the origin. f(x)=(1/5x)-x^19. T or F
    12·1 answer
  • Help please!!!!!!<br> Will give brainliest
    8·1 answer
  • 7x31=????????????????
    7·1 answer
  • Help this is math i hate math
    15·2 answers
  • Find the midpoint between A (4, 2) and B (0, 6)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!