Kate needs 3 pieces of ribbon. she needs 2 pieces that are each 8.5 inches long and another piece that is 7.75 inches long. she has a piece of ribbon that is 24 inches long and she wants to know if it will be enough.

which statements are true?
choose all answers that are correct.

a.
kate estimates the total length by adding 9 + 9 + 8. she does not have enough ribbon.

b.
kate calculates exactly how much ribbon she will need. she knows if she has enough ribbon.

c.
kate estimates the total length by adding 8 + 8 + 7, which is less than 24. she has enough ribbon.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

perimeter of the base times height

step-by-step explanation: