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
Dafna11 [192]
3 years ago
6

Ok some one ask me what 20 + 20 - 20 is said its 20 e didnt belive me i know thats the right anser

Mathematics
1 answer:
postnew [5]3 years ago
6 0

Answer:

it is because 20 + 20 is 40 and then 40 - 20 = 20

You might be interested in
The graph below shows the value of Edna's profits f(t), in dollars, after t months:
umka21 [38]
Since we know that the graph of our quadratic function has x-intercepts at (6,0) and (18,0), x=6 and x=18 are the zeroes of our quadratic. To find our quadratic we are going to factor each zero backwards and multiply them:
x=6
x-6=0
x=18
x-18=0

(x-6)(x-18)=x^{2}-6x-18x+108
=x^{2}-24x+108

Now that we have our quadratic function, we are going to use the average formula: m= \frac{f(9)-f(3)}{9-3}
where
f(9) is the function evaluated at  the <span>9th month
</span>f(3) is the function evaluated at the 3rd month 

m= \frac{f(9)-f(3)}{9-3}
m= \frac{[9^{2}-24(9)+108]-[3^{2}-24(3)+108]}{9-3}
m= \frac{-27-45}{6}
m= \frac{-72}{6}
m=-12

We can conclude that the closest approximate average rate of change for Edna's profits from the 3rd month to the 9th month is: <span>B. −11.63 dollars per month.</span>

6 0
3 years ago
Read 2 more answers
Find the unknown angle A<br>​
uranmaximum [27]
40! When you add all four angles of a quadrilateral together, you will always end up with 360. So, 360-75-120-125=40 :) have a great day!
4 0
3 years ago
Read 2 more answers
Can someone write the slope-intercept form of the graph below
abruzzese [7]

Answer:

y = -2x + 2 i think

Step-by-step explanation:

5 0
3 years ago
What is the length of LN
Leto [7]
The answer to your problem is 20 inches.
5 0
3 years ago
Read 2 more answers
Triangle JKL has vertices J(2,5), K(1,1), and L(5,2). Triangle QNP has vertices Q(-4,4), N(-3,0), and P(-7,1). Is (triangle)JKL
Tems11 [23]

Answer:

Yes they are

Step-by-step explanation:

In the triangle JKL, the sides can be calculated as following:

  • J(2;5); K(1;1)

             => JK = \sqrt{(1-2)^{2} + (1-5)^{2}  } = \sqrt{(-1)^{2}+(-4)^{2}  } = \sqrt{1+16}=\sqrt{17}

  • J(2;5); L(5;2)

             => JL = \sqrt{(5-2)^{2} + (2-5)^{2}  } = \sqrt{3^{2}+(-3)^{2}  } = \sqrt{9+9}=\sqrt{18} = 3\sqrt{2}

  • K(1;1); L(5;2)

             =>  KL = \sqrt{(5-1)^{2} + (2-1)^{2}  } = \sqrt{4^{2}+1^{2}  } = \sqrt{1+16}=\sqrt{17}

In the triangle QNP, the sides can be calculate as following:

  • Q(-4;4); N(-3;0)

             => QN = \sqrt{[-3-(-4)]^{2} + (0-4)^{2}  } = \sqrt{1^{2}+(-4)^{2}  } = \sqrt{1+16}=\sqrt{17}

  • Q (-4;4); P(-7;1)

   => QP = \sqrt{[-7-(-4)]^{2} + (1-4)^{2}  } = \sqrt{(-3)^{2}+(-3)^{2}  } = \sqrt{9+9}=\sqrt{18} = 3\sqrt{2}

  • N(-3;0); P(-7;1)

             =>  NP = \sqrt{[-7-(-3)]^{2} + (1-0)^{2}  } = \sqrt{(-4)^{2}+1^{2}  } = \sqrt{16+1}=\sqrt{17}

It can be seen that QPN and JKL have: JK = QN; JL = QP; KL = NP

=> They are congruent triangles

7 0
3 years ago
Read 2 more answers
Other questions:
  • A quarter circle is attached to the side of a square as shown.
    12·1 answer
  • M.<br> 2. } }<br> 4.(-3-3-3)(-3)
    7·1 answer
  • If Ru-Ping earns an A in science, an A in math, and a C in English, what is her GPA?
    6·1 answer
  • Simplify 7(x + 3).<br> 7x + 3<br> 7x + 21<br> Ox+ 21<br> 07x + 10
    15·1 answer
  • -3.8x - 5.9x = 223.1
    5·2 answers
  • HELP ASAP ASAP HELP HELP ASAP ASAP
    12·1 answer
  • the amount of time a certain brand of light bulb lasts is normally distributed with a mean if 1800 hours and a standard deviatio
    6·1 answer
  • Which relationship is described by the equation y=5x
    8·1 answer
  • Please help!! graph y=-4/3x+8
    13·1 answer
  • A suitcase measures 24 inches long and the diagonal is 30 inches long. What is the area of material that is needed to cover one
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!