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
cestrela7 [59]
2 years ago
9

Write an equation for the description.

Mathematics
1 answer:
Korvikt [17]2 years ago
6 0

Answer:

That's Easy.

Step-by-step explanation:

11+x=13

11+2=13

x is equal to 2

BRAINLIEST PLEASE

You might be interested in
Here's a graph of a linear function. Write the equation that describes that function. (Express it in slope-intercept form.)
rusak2 [61]

Answer:

y=\frac{1}{2}x+4

Step-by-step explanation:

The equation of a linear function in a slope-intercept form is written as

y=mx+q

where

m is the slope of the line

q is the y-intercept

We proceed as follows. First of all, we find the y-intercept, which is the value of y at which the line touches the y-axis.

From the graph, we see that this occurs at y = 4, therefore the y-intercept is

q=4

Now we have to find the slope. We do that by choosing two points along the line, with coordinates (x_1,y_1) and (x_2,y_2) and by using the equation

m=\frac{y_2-y_1}{x_2-x_1}

Here we take the two points:

(0,4)

(-8,0)

So the slope is

m=\frac{4-0}{0-(-8)}=\frac{1}{2}

Therefore, the equation of the line is

y=\frac{1}{2}x+4

5 0
3 years ago
Two poles are connected by a wire that is also connected to the ground. The first pole is 18 ft tall and the second pole is 24 f
9966 [12]

Answer:

  72 feet from the shorter pole

Step-by-step explanation:

The anchor point that minimizes the total wire length is one that divides the distance between the poles in the same proportion as the pole heights. That is, the two created triangles will be similar.

The shorter pole height as a fraction of the total pole height is ...

  18/(18+24) = 3/7

so the anchor distance from the shorter pole as a fraction of the total distance between poles will be the same:

  d/168 = 3/7

  d = 168·(3/7) = 72

The wire should be anchored 72 feet from the 18 ft pole.

_____

<em>Comment on the problem</em>

This is equivalent to asking, "where do I place a mirror on the ground so I can see the top of the other pole by looking in the mirror from the top of one pole?" Such a question is answered by reflecting one pole across the plane of the ground and drawing a straight line from its image location to the top of the other pole. Where the line intersects the plane of the ground is where the mirror (or anchor point) should be placed. The "similar triangle" description above is essentially the same approach.

__

Alternatively, you can write an equation for the length (L) of the wire as a function of the location of the anchor point:

  L = √(18²+x²) + √(24² +(168-x)²)

and then differentiate with respect to x and find the value that makes the derivative zero. That seems much more complicated and error-prone, but it gives the same answer.

7 0
3 years ago
Simplify 8 3/4 plus 9 2/8
Ipatiy [6.2K]

Answer:

18

Step-by-step explanation:

8 3/4 + 9 2/8

We can simplify 2/8 by dividing the top and bottom by 2

8 3/4 + 9 1/4

Add the whole numbers

8+9 = 17

3/4 + 1/4 = 4/4 = 1

Add this to the whole numbers

17+1 = 18

8 0
3 years ago
On a local sports team, 20% of 50 players are left-handed. How many left-handed players are on the team?
never [62]

Answer:

Step-by-step explanation:

50*20%=10

10 players are left-handed.

8 0
3 years ago
Read 2 more answers
Find the x-coordinate of the vertex of a parabola if the x-intercepts are (3,0) and<br> (-9,0)
madam [21]

Answer:

x = -3

Step-by-step explanation:

The vertex lies on the axis of symmetry, whose x-coordinate is halfway between -9 and 3:  x = -3

8 0
3 years ago
Other questions:
  • How to find overall range
    10·1 answer
  • How do you prove this using a two-column proof format?
    6·1 answer
  • If two angles from a linear pair and the m&lt;1=2x+20 and m&lt;2=48x find the measure of each angle
    6·1 answer
  • Write a word phrase for 1/5 (3x+4).
    11·1 answer
  • Hey 1200 seat theater sells two types of tickets for a concert. premium seats sell for $30 each and regular seats so for $20 eac
    12·2 answers
  • William fills 1/3 of a water bottle in 5/9 of a minute. How many bottles can he fill in a minute?
    6·2 answers
  • Please solve the following right triangle below. The round the following decimal answers to the nearest tenth.
    11·1 answer
  • HELPPPPP!!!!!!!!!!!!!!
    5·2 answers
  • Explain the steps you would take to complete this conversion problem.
    11·1 answer
  • Carlisle purchased one-fourth of a pound of candy at the mall. What decimal did he see on the scale?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!