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
Aleksandr-060686 [28]
3 years ago
6

Solve for the value of k. (k+8) 400​

Mathematics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

value of k = 6

Step-by-step explanation:

sum of all angles forming a straight line = 180°

so,

  • 7k + 8 + 90 + 40 = 180
  • 7k + 138 = 180
  • 7k = 180 - 138
  • 7k = 42
  • k = 42/7
  • k = 6

hence the value of k = 6

You might be interested in
A bookstore with 18 copies of a book sold 5/6 of the books
Irina18 [472]

5/6 of 18 is 15 books.

5/6 x 18

90/6=15

15 books sold

18-15=3

3 books remain.

5 0
3 years ago
Express f in standard form: f(x) = x^2 − 2x + 3
serious [3.7K]

Answer:

Step-by-step explanation:

If f(x)=2x^2-x-6 and g(x)=x^2-4, find f(x)/g(x)

2x+3/x-2

2x-3/x+2

2x+3/x+2

8 0
3 years ago
In the circle, CP=x and PD=y. If xy=28 and AP=2, then what is PB?
mario62 [17]
We know that
<span>When two chords intersect each other inside a circle, the products of their segments are equal
</span>
so
CP*PD=AP*PB
x*y=2*PB-----------> 28=2*PB----------> PB=14

the answer is
PB=14


5 0
3 years ago
Which doesn’t belong? PLEASE HELP! I will give a thanks! helpppppp
Basile [38]

Answer:

The blu

Step-by-step explanation:

It is parallel, while the others are not.

6 0
3 years ago
Read 2 more answers
A melting spherical block of ice has its surface area changing at the rate of 24 inch2 /sec at the time the radius is 3 inches.
emmainna [20.7K]
The surface area of the sphere is:
 A = 4 * pi * r ^ 2
 Deriving we have:
 A '= 8 * pi * r * r'
 We clear the speed:
 r '= A' / (8 * pi * r)
 Substituting values:
 r '= 24 / (8 * pi * 3)
 r '= 1 / pi inch / sec
 Then, the volume of the sphere is:
 V = (4/3) * (pi) * (r ^ 3)
 Deriving we have:
 V '= (3) * (4/3) * (pi) * (r ^ 2) * (r')
 Substituting values:
 V '= (3) * (4/3) * (pi) * (3 ^ 2) * (1 / pi)
 Rewriting:
 V '= (4) * (9)
 V '= 36 inch3 / sec
 Answer:
 
the volume of the ice is changing at 36 inch3 / sec at that moment
4 0
3 years ago
Other questions:
  • The skating rink is found at the coordinates of (-3, 1). Jack's house is found 5 units horizontal and to the left of the skating
    9·1 answer
  • What is the midpoint of the segment shown below?
    6·2 answers
  • Evaluate the expression 2times9 pluse5times3
    9·1 answer
  • Ca someone plzzz help me with this problem?
    12·1 answer
  • A classroom with r rows can seat a total of p people. If each row in the classroom has the same number of seats. What expression
    7·1 answer
  • I genuinely don't understand . please help me asap
    6·1 answer
  • The children in a school were asked how many cats and dogs
    8·2 answers
  • I need help pleasejfjdjs
    13·2 answers
  • Find the whole if the part is 69 and the percent is 12.
    12·2 answers
  • Question 14 of 25 The image shows the location of ladders around a circular pool. 10 C 8 2 0 2 B (6y-2 85 -12 -10 0 2 Cody walks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!