Answer:
Step-by-step explanation:
hello :
(x² - 10x) + (y² - 2y) + 15 = 0
(x² - 10x+25-25) + (y² - 2y+1-1) + 15 = 0
(x² - 10x+25)-25 + (y² - 2y+1)-1 + 15 = 0
(x-5)²+(y-1)² = 11
the center is (5;1) and radius √11
Answer:
147.7
Step-by-step explanation:
Answer:
Y = (x + 3)(x - 4)(x + 1)^2
Y = (x^2 - x - 12)(x^2 + 2x + 1)
Y = x^4 + 2x^3 + x^2 - x^3 - 2x^2 - x - 12x^2 - 24x - 12
Y = x^4 + x^3 - 13x^2 - 25x - 12
R10 is 5% of R200
<h3>What percentage is R10 of R200?</h3>
The given parameters are:
R10 of R200
The percentage is calculated as
Percentage = R10/R200 * 100%
Evaluate the product
Percentage = 5%
Hence, R10 is 5% of R200
Read more about percentage at:
brainly.com/question/843074
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Step-by-step explanation:
We are asked to simply (2√5 + 3√2)². Using formula: (a + b)² = a² + b² + 2ab. Let's say 2√5 = a, 3√2 = b. So,
→ (a + b)² = a² + b² + 2ab
→ (2√5 + 3√2)² = (2√5)² + (3√2)² + 2(2√5)(3√2)
We are aware about the fact that root means 1/2 and square of root means 2/2 that is 1. Using this we get:
→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2√5)(3√2)
Solve the brackets, to do so first put the like terms in one box.
→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2*3)(√5)(√2)
Solve the rest calculations.
→ (2√5 + 3√2)² = 20 + 18 + 2(6)(√10)
→ (2√5 + 3√2)² = 38 + 12√10
Option (a) (38 + 12√10) is the correct option.
