Select the gcf of these numbers. 25 · 5· 11 and 23· 52 · 7

There is no greater common factor for the given numbers.

Step-by-step explanation:

The greatest common factor (GCF) is the largest positive integer that would divide a set of given numbers without a remainder.

Considering the factors of each number,

25 = 1 × 5 × 5

5 = 1  × 5

11 = 1  × 11

and

23 = 1  × 23

52= 2 × 2  × 13

7 = 1 × 7

Comparing the factors, there is no gcf among the given numbers.

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92