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
Vilka [71]
3 years ago
14

Determine if the lines are parallel, perpendicular or neither. -2x + y = -4 and -19 - y = 1/2x

Mathematics
1 answer:
LekaFEV [45]3 years ago
8 0
The lines are perpendicular because the slopes are negative reciprocals of eachother.
You might be interested in
Given the two points: (0,6) and (6,18), write the equation of the line.
NNADVOKAT [17]
Y=2x+6 We know the y intercept is +6 so we still can’t eliminate any of the options. We know it can’t be 1/3x or 1/2x because the y value is greater than the x value. (6)(2)+6=18
4 0
3 years ago
The Drury Lane Theater has 10 seats in the first row and 38 rows in all. Each successive row contains one additional seat. How m
densk [106]

Answer:

1083 seats

Step-by-step explanation:

this is an arithmetic sequence :

an = an-1 + c

in our case

a1 = 10 (10 seats in the first row)

a2 = a1 + 1 = 10 + 1 = 11

a3 = a2 + 1 = a1 + 1 + 1 = 10 + 1 + 1 = 12

an = an-1 + 1 = a1 + (n-1)×1 = a1 + n - 1 = 10 + n - 1 = 9 + n

a38 = a1 + 37 = 10 + 37 = 47 seats.

altogether this means the sum of the arithmetic sequence of a1 to a38.

the general sum of an arithmetic sequence from a1 to an is

n×(a1 + an)/2

in our case

38×(10 + 47)/2 = 19×57 = 1083 seats

3 0
2 years ago
Y=x+5 <br> 4x+y=20 <br> show work
evablogger [386]

Answer:

(3,8)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Last summer, Brianna planted 2 plants
Volgvan

Answer: how many square feet are there? multiple each square foot by 2

Step-by-step explanation:

4 0
3 years ago
How do I find value
olganol [36]

71

Step-by-step explanation:

subtract all from 360 degrees

6 0
3 years ago
Read 2 more answers
Other questions:
  • What percent of 76 is 57?
    7·1 answer
  • What is the median of this box plot
    5·1 answer
  • An atom of element A has 74 protons. What would the elements atomic number be?
    14·1 answer
  • Find the average rate of change of the function f (x) = 5 - 3 x^3 on the interval [1, 4].
    13·1 answer
  • How many times can 200 go into 4879
    6·2 answers
  • Many freeways have service (or logo) signs that give information on attractions, camping, lodging, food, and gas services prior
    10·1 answer
  • Which expression is equivalent to 4+x+x+2x+5+3+x?
    7·2 answers
  • Find the area of the composite figure.
    15·2 answers
  • 5r-8=9r-12 answer this plsss
    7·1 answer
  • Samantha has a shelf that is 95 over 4 inches wide. How many books can Samantha arrange on the shelf if each book is 5 over 4 in
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!