Answer:
0.13 hours
468 seconds
Step-by-step explanation:
7.8 min= 7.8/60= 0.13 hours
7.8 min= 7.8x60= 468 seconds
Answer:
200 words are peter can be type in 5 minutes.
Step-by-step explanation:
As given
If peter can type 80 words in 2 minutes .
i.e
80 words = 2 minutes
Now words type in 1 minutes.
1 minutes = 40 words
Now calculate number of words are type in 5 minutes.
Words are type in 5 minutes = Number of minutes × Number of words are type in 1 minutes.
Number of minutes = 5 minutes
Number of words are type in 1 minutes = 40 words
Words are type in 5 minutes = 5 × 40
= 200 words
Therefore 200 words are peter can be type in 5 minutes.
The coterminal angle for the -4π/5 are -14π/5 , 6π/5 and reference angle is π/5 respectively.
<h3>What is coterminal angles?</h3>
Two different angles that have the identical starting and ending edges termed coterminal angles however, since one angle measured clockwise and the other determined counterclockwise, the angles' terminal sides have completed distinct entire rotations.
We have an angle:
-4π/5
To find the coterminal angle, add and subtract by 2π in the angle -4π/5
Coterminal angle:
= -4π/5 - 2π
= -14π/5
= -4π/5 + 2π
= 6π/5
Reference angle:
= π - 4π/5 (as the angle lies in the second quadrant)
= π/5
Thus, the coterminal angle for the -4π/5 are -14π/5 , 6π/5 and reference angle is π/5 respectively.
Learn more about the coterminal angles here:
brainly.com/question/23093580
#SPJ1
Answer:
C
Step-by-step explanation:
6(a+b) + 2z = -8 ; divide by 2
3(a+b) + z = -4
a+b+z = 2; subtract z from both sides
a+b = 2-z; substitute a+b into equation 3(a+b) +z = -4
3(2-z) +z = -4; distribute
6 - 3z+ z= -4 ; subtract 6 on both sides
-3z + z = -4 -6 ; combine like terms
-2z = -10; divide both sides by -2
z= 5
3(a+b) +z = -4; substitute z by 5
3(a+b) +5 = -4; subtract 5 from both sides
3( a+b) = -4 -5; combine like terms
3(a+b) = -9; divide both sides by 3
(a+b) = -3
Answer:
18/11
Step-by-step explanation:
To get the reciprocal all you do is flip over the fraction <3
