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
AnnZ [28]
2 years ago
13

I need help with my geometry homework.

Mathematics
1 answer:
wlad13 [49]2 years ago
7 0

Step-by-step explanation:

5x + 80 = 180

x = 20

2x = 40

3x=60

7x=140

You might be interested in
A legal firm offers some services "pro bono", which means that they work for clients free of charge. The legal firm accepted 2%
Alexxandr [17]
I think it is 12600 is the answer
5 0
3 years ago
Read 2 more answers
For what values of x is f(x) = |x + 1| differentiable? I'm struggling my butt off for this course
pav-90 [236]

By definition of absolute value, you have

f(x) = |x+1| = \begin{cases}x+1&\text{if }x+1\ge0 \\ -(x+1)&\text{if }x+1

or more simply,

f(x) = \begin{cases}x+1&\text{if }x\ge-1\\-x-1&\text{if }x

On their own, each piece is differentiable over their respective domains, except at the point where they split off.

For <em>x</em> > -1, we have

(<em>x</em> + 1)<em>'</em> = 1

while for <em>x</em> < -1,

(-<em>x</em> - 1)<em>'</em> = -1

More concisely,

f'(x) = \begin{cases}1&\text{if }x>-1\\-1&\text{if }x

Note the strict inequalities in the definition of <em>f '(x)</em>.

In order for <em>f(x)</em> to be differentiable at <em>x</em> = -1, the derivative <em>f '(x)</em> must be continuous at <em>x</em> = -1. But this is not the case, because the limits from either side of <em>x</em> = -1 for the derivative do not match:

\displaystyle \lim_{x\to-1^-}f'(x) = \lim_{x\to-1}(-1) = -1

\displaystyle \lim_{x\to-1^+}f'(x) = \lim_{x\to-1}1 = 1

All this to say that <em>f(x)</em> is differentiable everywhere on its domain, <em>except</em> at the point <em>x</em> = -1.

4 0
3 years ago
Sophia and her friends are planning to spend the day at the zoo. It will cost her $12.75 for admission and $2.50 for each ticket
lukranit [14]
Sofia would have $34.75 left
4 0
3 years ago
Can someone solve this and explain?
stich3 [128]
The Answer would be 32
3 0
3 years ago
Determine which system will produce indefinite many solutions
Vinvika [58]

Answer:

Where are the systems?

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Find the equation that best represents the following word problem: In a certain freshman class, the number of girls is 83 less t
    13·1 answer
  • The salaries of three employees are listed below. Each employee was recently given a raise.
    12·1 answer
  • Write the equation of the line that passes through the points (3,7) and (-1,2) in point-slope form and slope-intercept form. I a
    15·1 answer
  • Which answer lists these numbers in order from least to greatest? –11.8, 125, 1.63, –3.982, 49.2
    6·1 answer
  • If 1 inch represent 10 miles on a map then how many inches represents 120 miles
    15·2 answers
  • Simplify 7(x - 1) - 2(x + 1) + 3(x - 4)<br><br> 8x - 21<br> 8x - 4<br> 8x + 21
    14·1 answer
  • 1.5% of h is 12. what is h?
    11·2 answers
  • 1) Bob can type 2 letters in 4 hours while Bill can do it in 6 hours. How many hours would it take them to type six letters toge
    9·1 answer
  • Ms. O'Brien makes her own cleaning solution to clean her floors! (yet, she can't clean her measuring cups?) She mixes 8 cups of
    14·1 answer
  • The Northwest Football team drove 25 mi of their 3-hour trip to San Angelo for their game. They used 1.7 gal of gasoline. What a
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!