PERFORMANCE TASK Solve for the following problem. Show your solutions and box your final answerts. Use the space at the back for your solutions. 3. If the square of a number added to three times the number, the sum is 54. Find the number and its surn and product. 4. The product of the roots of a quadratic equation is 21. If one of the roots is 7, what could be the equation?

$12. that is my answer.

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answer: d.) the total number of protons and neutrons is 15

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b). 4320 have a nice day

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.