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
Sauron [17]
3 years ago
8

A regular polygon of 2 k + 1 sides has 140 as size of each interior angle find K​

Mathematics
1 answer:
natita [175]3 years ago
4 0
Hope this can help.

You might be interested in
What is 6.02 + 1.3 - _________ = 4.39
garik1379 [7]
X= 2.93
Or the blank is 2.93
3 0
3 years ago
Solve by completing the square.<br><br> 3x^2+x-2=0
rodikova [14]

Answer: x  =  2 /3  ,  −  1

Step-by-step explanation:

3 0
2 years ago
A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 lit
FromTheMoon [43]

Let

x-------> the amount of 2\% solution

y--------> the amount of 7\% solution

we know that

2\%=0.02\\7\%=0.07\\3.5\%=0.035

so

x+y=1

y=1-x -------> equation A

0.02x+0.07y=0.035 -------> equation B

substitute equation A in equation B

0.02x+0.07(1-x)=0.035

0.02x+0.07-0.07x=0.035

0.05x=0.035

x=0.7\ liters

find the value of y

y=1-x

y=1-0.7=0.3\ liters

therefore

The student need 0.7\ liters of 2\% solution and 0.3\ liters of 7\% solution

<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

8 0
3 years ago
Read 2 more answers
What is 0.25 ÷ 5.46 (show ur work)
kenny6666 [7]

Answer:

0.04578

Step-by-step explanation:

Hope this helps somewhat.

4 0
2 years ago
Read 2 more answers
At a New Car Dealership, a particular model comes in 3 different trim levels (CX, DX,
xxMikexx [17]

Answer:

B. 48

Step-by-step explanation:

Multiply all the numbers of choices together.

trim levels: 3

colors: 4

interior: 4

number of combinations = 3 * 4 * 4 = 48

7 0
3 years ago
Read 2 more answers
Other questions:
  • 1996 gail devers won the 100-meter dash in the olympic games. her times was 10.94 seconds. what was her speed in meters per seco
    14·1 answer
  • Factor of 42a5b3, 35a3b4, and 42ab4
    8·1 answer
  • Highest common factor of 170 and 238
    12·1 answer
  • The probability that it will snow is 7/20 what’s the probability it won’t
    12·1 answer
  • Which system is equivalent to StartLayout Enlarged left-brace 1st Row 5 x squared + 6 y squared = 50 2nd row 7 x squared + 2 y s
    6·2 answers
  • 7 1/2 pt = ______________ qt pleasesssss
    10·2 answers
  • Luis put out 6 different pies at a picnic at the end of the picnic, he noticed this about the pies: one whole apple pie was eate
    9·1 answer
  • Work out the area of this rectangle using a calclator and giving your answer as a mixed number
    11·1 answer
  • Who helped / guide you in answer your module?​
    9·1 answer
  • What is the total value of a $6,250 investment after five years at 2.75% interest compounded quarterly?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!