First, note that x+21 and 3x+9 are "complementary angles;" they add up to 90 degrees. Thus, 4x + 30 = 90 degrees, so that 4x = 60 degrees, and x = 15 degrees.
5√7 × 3√14 = 5 × 3√(7 × 14)
= 15√98
= 105√2
Answer: z = -4
Step-by-step explanation: I thinks
Answer:
2(x-5)
Step-by-step explanation:
2(x+5)
its not an equation its just factorised I don't think it can be made into an equation.
Answer:
23/100
Step-by-step explanation:
Given the decimal value 0.23, to write as a fraction;
0.23 = 23/100
The place value of dot will be replaced as 1 at the denominator and since the decimal is in 2 decimal places, two zeros will be added to after the 1 to make it 10 thereby making the required fraction 23/100. Hence the value of 0.23 as a fraction will be 23/100
