Hey there!
There are a few ways to do this, but I'll give you the one I can explain best.
This is a right triangle. We know this because one of the angles is 90º.
The lengths of the sides of the right triangle can be represented by the following equation:
a² + b² = c²
We already have the values for a and c, c being the hypotenuse.
3² + b² = (√18)²
Let's square a and c.
9 + b² = 18
Subtract 9 from each side of the equation.
b² = 9
To find the final value for b, find the square root of each side of the equation.
b = 3
Your answer is 3, or option D.
Hope this helps!
The answer is, 2/5 and 3/2
Answer:
8000cm squared
Step-by-step explanation:
20×20=400
400×20=8000
The answer to your question is B
Answer:
See explanation
Step-by-step explanation:
<u>Line A</u>
gradient = 4
x-intercept = -1
y-intercept = 4
<u>Line B</u>
gradient = -3
x-intercept = -1
y-intercept = -3
<u>y + 8x = - 72</u>
x-intercept = -9
y-intercept = -72