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
juin [17]
3 years ago
10

What is the answer to -4x - 40y - 80 = 0?

Mathematics
1 answer:
Vaselesa [24]3 years ago
6 0
Hi. What grade are you in?
You might be interested in
Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.
dmitriy555 [2]

see the attached figure to better understand the problem

we have that

cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

cos (A)=(AC/AB)\\AC=AB*cos(A)

substitute the values in the formula

AC=12*(1/5)\\ AC=2.4\ units

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}

substitute the values

BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units

Step 3  

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

BD^{2} =DC^{2}+BC^{2}

substitute the values  

BD^{2} =2^{2}+11.76^{2}

BD=11.93\ units

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0
3 years ago
Read 2 more answers
An elevator is on the twentieth floor. It goes down 11 floors and then up 5 floors. What floor is the elevator on now?
kolbaska11 [484]

Answer:

floor 14

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Ron's piano lesson starts in 2 hours. It takes him 30 minutes to get to the lesson. He has
RideAnS [48]

Answer:

2 hours=120 mins

120-(45+25)

120-(70)

50

Ron has enough time to finish his homework and walk the dog before his lesson. Ron should overestimate the total time needed. Since Ron has 50 minutes to spare he could add 25 to home work time and another 25 to walking his dog. he still ha time to do both.

4 0
3 years ago
A line goes through the point (6,-2) and has a slope of
Lilit [14]

Answer: a = 3

Step-by-step explanation: when you multiply 6 by -3 you get -18 and if you add 16 you get -2

so the slope is -3 and the y-intercept is 16

so a*-3 + 16 = 7

by subtracting 16 on both sides you get

-3a = -9

and to get a by itself you divide -3 on both sides

a = -9/-3

a= 9/3

a = 3

5 0
3 years ago
Paul left for school at 7:25 AM. He returned home at 3:15 PM. How long was Paul away from home?
Nikitich [7]

7.25 until 8.00 = 35 minutes

8.00 until 3.00 PM =  7 hours

3.00 until 3.15 = 15 minutes

Answer is 7 hours 50 minutes

7 0
3 years ago
Other questions:
  • Which equation describes the line that passes through points (2,5) and (0,9)?
    8·1 answer
  • Simplify −4√−48<br> Help , please ?
    15·1 answer
  • Jim needs to read 6 novels each month.
    12·2 answers
  • What happens to the value of the expression <img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7Bx%7D%20%2B5" id="TexFormula1" tit
    13·1 answer
  • PLEASE HELP!! 30 POINTS
    5·1 answer
  • Calculate the correct answer<br>Evaluate: n2-n3 +r(n-r)<br>if n +7=3 and r= √25​
    5·1 answer
  • Find the area of the shaded polygons
    9·2 answers
  • Can You Solve This?<br> 6 = 2(1+2) =<br> = X
    13·2 answers
  • Which two values are located at the same point on a number line? 1/2 and 2 , 2/2 2 , 2/1 2 , 2/1 and 1
    13·1 answer
  • 3. Multiply: (x + 8)(x - 12)<br><br> Please show work
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!