What strategies can be used whn multiplying

repeated addition, skip counting, or equal groups

Step-by-step explanation:

repeated addition

for example if you do 3x4 thats equals 12. to do repeated additoin you can do 3 + 3 + 3 + 3 =12 OR 4+4+4=12

skip counting

3 x 4 =12

4,6,8,12

3,6,9,12

equal groups

4 x 3 =12

(see attachment)

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8