Answer:
its C
Step-by-step explanation:
Answer:
tell mariam to ask the shop keeper
Step-by-step explanation:
Answer:
Number of 1 point shots = 16
Number of 2 point shots = 36
Step-by-step explanation:
Let,
x be the number of 1 point shots
y be the number of 2 point shots
According to given statement;
x + y = 52 Eqn 1
x + 2y = 88 Eqn 2
Subtracting Eqn 1 from Eqn 2
x + 2y - x - y = 88 - 52
y = 36
Putting y = 36 in Eqn 1
x + 36 = 52
x = 52 - 36
x = 16
Hence,
Number of 1 point shots = 16
Number of 2 point shots = 36
Answer:
Step-by-step explanation:
Given
See attachment
Required
Length ML
First, calculate x using the following equivalent ratios
Express as fraction
Cross Multiply
Substitute values:
Expand
Collect like terms
Using a calculator:
and
Given that:
Substitute values for x
ML cannot be negative; So:
Answer:
Step-by-step explanation:
x² + b²/4a² = -c / a + b²/4a²
x² + (b/2a)² = -c/a + (b/2a)²
(x + b/2a)² = -c/a + (b/2a)² = -c / a + b²/4a² = (-4ac+ b²)/4a²
(x + b/2a)² = (-4ac+ b²)/4a²
√{(x + b/2a)²} = √{(-4ac+ b²)/4a²}
x + b/2a = √(-4ac+ b²) / √(4a²) = √(-4ac+ b²) / 2a = √( b²-4ac) / 2a
x + b/2a = √( b²-4ac) / 2a
- subtract b/2a from both sides
x + b/2a -b/2a = {√( b²-4ac) / 2a } -b/2a
x = -b/2a + {√( b²-4ac) / 2a }
x = {-b±√( b²-4ac)}/2a