Nelly buys a bag that contains 120 beads. She also has 88 beads in another bag. She will use 13 beads to make each necklace. How
1 answer:
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SA = 2+2
1. Find the radius.
R = 1/2D
6 x 1/2 = 3
R = 3
2. Plug them in.
SA 2(3.14)(3)(7) + 2(3.14)(3^2)
3. Solve
3 x 7 = 21
21 x 3.14 = 65.94
65.94 x 2 = 131. 88
3^2 = 9
9 x 3.14 = 28.26
28.26 x 2 = 56.52
4. Add them together.
131.88 + 56.52 = 188.4
Answer: 188.4 square millimeters
ANSWER
A. -3, -2, 2, and 3
EXPLANATION
The given polynomial function is,
To find the real roots, we equate the function to zero to obtain;
We can solve this equation as a quadratic equation in
Thus we rewrite the equation as,
We split the middle term to get,
We factor to get,
We factor to get,
Either
or
The correct answer is A
A. -3, -2, 2, and 3
EXPLANATION
The given polynomial function is,
To find the real roots, we equate the function to zero to obtain;
We can solve this equation as a quadratic equation in
Thus we rewrite the equation as,
We split the middle term to get,
We factor to get,
We factor to get,
Either
or
The correct answer is A