You do the butterfly method multiply across and add or subtract. multiply the denominators to get the denominators
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Here you have: 2x^2-9x-26
Answer:
a=4, b=6, c=5
Step-by-step explanation:
multiply by the reciprocal of 5/6, or 6/5
B is a ratio but there are no units so it’s not a rate.
Answer:
x=12
Step-by-step explanation:
Since this is a right triangle we can use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
9^2 + x^2 = 15^2
81 + x^2 = 225
Subtract 81 from each side
x^2 =225-81
x^2 =144
Take the square root of each side
sqrt(x^2) = sqrt(144)
x=12
