7.3
√3 x √21 = √3 x √(3 x 7) = (√3 x √3) x √7) = 3√7
36
2√20 - 3√7 - 2√5 + 4√63 = 2√(4 x 5) - 3√7 - 2√5 + 4√(9 x 7) = 4√5 - 2√5 - 3√7 + 12√7 = 2√5 + 9√7
3 divided by 7 is:3/7 = 0.428571428 calculating to 9 decimal places.
98
Radical 147 simplified is 7 radical 3. radical147= radical 49* radical 3 the square root of 49 is 7 therefore the answer is 7 radical 3
4√3 + 7√3 = (4 + 7)(√3) = 11√3
13.8564
3^3*radical(128) = 3^3*radical(2^7) = 3^3*radical(2^6*2) =3^3*2^3*radical(2) = 216*radical(2).
√3 x √21 = √3 x √(3 x 7) = (√3 x √3) x √7) = 3√7
36
7/3= 7 ÷ 3= 2.333 in decimal
2√20 - 3√7 - 2√5 + 4√63 = 2√(4 x 5) - 3√7 - 2√5 + 4√(9 x 7) = 4√5 - 2√5 - 3√7 + 12√7 = 2√5 + 9√7
3 divided by 7 is:3/7 = 0.428571428 calculating to 9 decimal places.
98
Expressed as a decimal, 3 7/8 is equal to 3.875.
3 and 7 10 ths as a decimal is 3.7.