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
MatroZZZ [7]
3 years ago
12

X=square root of 880-8x

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0
x=\sqrt{880-8x}\\
D:880-8x\geq0 \wedge x\geq0\\
D:8x\leq880 \wedge x\geq0\\
D:x\leq 110 \wedge x\geq0\\
D:x\in\langle0,110\rangle\\
x^2=880-8x\\
x^2+8x-880=0\\
x^2+8x+16-896=0\\
(x+4)^2=896\\
x+4=8\sqrt{14} \vee x+4=-8\sqrt{14}\\
x=-4+8\sqrt{14} \vee x=-4-8\sqrt{14}\\
\\ x=-4-8\sqrt{14}\not \in D \Rightarrow \boxed{x=-4+8\sqrt{14}}
You might be interested in
Please help me answer <br> 70 is 160% of what?
Lina20 [59]
You are basically asking 160% of X = 70. 
1) 70 x 100 = 7000 (to turn the 70 into a %)
2) 7000 /160 = 43.75

You can reverse the equation to double check the answer. 
160% x 43.75 = 70
6 0
3 years ago
Read 2 more answers
Is 2/1/2 greater then 2/3/5
zavuch27 [327]

Answer: yes you are correct 2 /1/2 is greater

Step-by-step explanation:

7 0
3 years ago
The product is 180. one factor is a multiple of 10
AfilCa [17]
To figure this out you would have to divide 180 by 10(which equals 18))
7 0
4 years ago
Read 2 more answers
The arnold family arrived ar the beach at 10:30 A.M. Thay spent 3 3/4hours there. What time dud they leave the beach?
VMariaS [17]
The arnold family arrived at the beach at 10:30 A.M.

10:30 

Add 3 hours and 3/4 minutes to that

3/4 = 75% of 60

.75 * 60 = 45

3 hours and 45 minutes 

10:30 >> 3 hours more = 1:30
1:30 + 45 mins = 2:15

Answer would be: They left at 2:15


5 0
4 years ago
Read 2 more answers
Determine the model that best describes the data and then write an equation for the function that models the data.
zhannawk [14.2K]

Answer:

  s = 4·3^t

Step-by-step explanation:

After the first term, each term in the sequence is 3 times the previous one. This is a description of a geometric sequence. Here, the first term is 4, so the general term is ...

  an = 4·3^n . . . . for n counting from 0

We can name the function "s" for "speed" and use "t" for the time in seconds. Then the equation is ...

  s = 4·3^t

4 0
4 years ago
Other questions:
  • Choose the name of the highlighted part of the figure.
    13·1 answer
  • The base of the prism in the diagram is rectangular, but the edges that are not parallel to the base are tilted. What is the vol
    11·1 answer
  • Choose the correct solution and graph for the inequality z-6 less than or equal to -14
    11·1 answer
  • What are the x- and y-intercepts of the graph of -7x + 4y = -14
    15·1 answer
  • Someone help me please​
    7·1 answer
  • Find the missing angle measure(s).<br> 55°<br> Wº<br> Xy<br> Z<br> Task 11
    5·1 answer
  • Is this negative positive or no correlation
    9·1 answer
  • Can some one help me with geometric sequence?​
    11·1 answer
  • How do i solve for this?
    8·1 answer
  • What is the area of the trapezoid shown? The figure is not drawn to scale.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!