Answer:
3ab+5b-6 = 0
Step-by-step explanation:
3ab+5b-6
a =-1 and b=3
Solve :
3ab+5b-6
= 3(-1)(3) + 5(3) - 6
= -9 + 15 - 6
= 0
Answer:
42
Step-by-step explanation:
Solving the square root by factorization:
1764 = 2² × 3² × 7²
will be 
= 2 × 3 × 7 =42
Answer:
10 offices
Step-by-step explanation:
the ratio is 5/6 so if the time is doubles the number of offices cleaned also doubles.
5/6 x 2 =10/12 so, 10 offices cleaned.
Answer: 0.15
Step-by-step explanation:
Multiply 0.03 by 5.
Answer:
5√2
Step-by-step explanation:
√8 + √18
We first have to find what is the largest perfect square that goes into √8:
4 is the largest, so therefore → √8 gives you 2√2:
Work: √4 * √2 → 2 * √2 → 2√2
Now we have to find what is the largest perfect square that goes into √18:
9 is the largest, so therefore → √18 gives you 3√2:
Work: √9 * √2 → 3 * √2 → 3√2
Because 2√2 and 3√2 have the same "base" of √2, they can be added together:
2√2 + 3√2 = 5√2 (The "bases" are to be left alone!)
