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
Natali5045456 [20]
3 years ago
14

Is f(x)=40-1.25x a function

Mathematics
1 answer:
poizon [28]3 years ago
7 0
F(x) = 40 - 1.25x is a function.
You might be interested in
A utility pole 10m high is supported by two guy wires. Each guy wire is anchored 3m from the base of the pole. How many meters o
klasskru [66]
You can use Pythagorean theorem to solve

10 squared + 3 squared = x squared
100+9=x squared
109=x squared
square route 109 and x to get
10.44=x
5 0
3 years ago
Read 2 more answers
How to do this ?<br> Don’t understand it
riadik2000 [5.3K]
X=y+3
<span>-5x-4y=<span>30
-------------------
Substitute y + 3 for x in </span></span>-5x-4y=30
<span><span>-5<span>(y+3)-</span></span>4y</span>=<span>30
</span>-9y-15=<span>30
</span>----------------------------
Add 15 to each side
<span><span>-9y-15</span>+15</span>=<span>30+<span>15
-9y = 45
</span></span>-----------------------------------
Divide each side by -9
-9y ÷ -9 = 45 ÷ -9
y = -5
Now we solve for x
====================================================================
Substitute -5 for y in x = y + 3
x=-<span><span>5</span>+<span>3
</span></span>x = -2
----------------------
(-2,-5) is your answer


7 0
3 years ago
Which of the following is the equation for a circle with a radius of r and center at (h,v)
Lorico [155]
Are there any answer choices
6 0
3 years ago
Read 2 more answers
Solve for x. Sqrt. x +3 / x+3 = 1
SashulF [63]

Answer:

x = -3 and  x = -2

Step-by-step explanation:

-3 +3 = 0

-3 + 3 = 1

thus that means 0 + 1 = 1

3 0
3 years ago
Read 2 more answers
What is the approximate distance between the points (-3, -4) and (-8, 1) on a coordinate grid
tatyana61 [14]
\bf ~~~~~~~~~~~~\textit{distance between 2 points}&#10;\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~ -3 &,& -4~) &#10;%  (c,d)&#10;&&(~ -8 &,& 1~)&#10;\end{array}\\\\\\ %  distance value&#10;d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}&#10;\\\\\\&#10;d=\sqrt{[-8-(-3)]^2+[1-(-4)]^2}\implies d=\sqrt{(-8+3)^2+(1+4)^2}&#10;\\\\\\&#10;d=\sqrt{25+25}\implies d=\sqrt{2\cdot 25}\implies d=\sqrt{2\cdot 5^2}\implies d=5\sqrt{2}
4 0
2 years ago
Read 2 more answers
Other questions:
  • A machine fills 80 containers of cookies in 20 minutes. At the same rate, how many containers of cookies could the machine fill
    11·2 answers
  • Jamie jogged a total distance of 6 and 1 over 2 miles during the months of March and April. If Jamie only jogged 1 over 6 mile e
    10·2 answers
  • A park is 4 times as long as its wide. If the distance around the park is12.5kilometers, what is the are of the park
    10·1 answer
  • A property owner on a lake is given an aluminum dock for his property. Unfortunately the dock is too large and heavy to move ove
    6·1 answer
  • Find the lateral surface area of the
    5·1 answer
  • 1/3 chose beef<br> 5/12 chose chicken <br> 69 chose vegetarian<br> how many people all together
    5·1 answer
  • -1/4+3/4 please help I feel dumb for not knowing but I’m trying
    6·1 answer
  • Given Set \(M:\ 0,\ 1,\ 3,\ 4,\ 7\) and Set \(N:\ 1,\ 2,\ 3,\ 4,\ 5,\ 9\).
    11·2 answers
  • Simplify.<br> [(63 = 18)2 – 8] * 5<br> 136<br> O 680<br> 0-39<br> -35
    9·1 answer
  • Problem-solving: Comparing Strategies
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!