Answer:
Step-by-step explanation:
x = 3
y = 5
2x^2 + 3y^2 = 2 × 3^2 + 3 × 5^2
= 2 × 9 + 3 × 25
= 18 + 75
= 93
Hope this helps
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by pythagorean formula, the last side is √(61)
by cos rule
cos A
A = 39.81
Answer:
8
Step-by-step explanation:
Since they intersect you can just solve for x and y
since y=-4x and y=x^2+2x+8, you can set -4x=x^2+2x+8
add 4x to both sides to make 0=x^2+6x+8
and factor out (x+4)(x+2)
so the solutions for x are -4 and -2
then insert the two values for x into the first equation
so y=-4(-4) and y=-4(-2)
so y=16 and y=8 when x=-4 and x=-2
so the smallest value for y in both equations is 8
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Answer:c
Step-by-step explanation:I just did this one and got it correct
