History

1. The length of a rectangular box is 2 units subtile than its width. If the area of the box is 15 units square. Find the perimeter of the box.   B. 16(Correct Answer)  history These are the formulas for the box. A= L x W P = 2( L + W) We know that the area is 15 15= L x W Also, L= W-2 Now we bathroom expenditure both formulas (W)(W-2) = 15 W² - 2W= 15 W²- 2W-15= 0 (W-5) (W+3) = 0 W= 5 , W= -3 We can digit the Length, L = W-2 = 5- 2= 3 L= 3 last the perimeter: P = 2( 3+ 5) P = 2(8) P= 16 2. Evaluate the pursuit expression if X=-2, Y= 3, Z= -5 2X²-3Y-3Z   D. 14(Correct Answer)  accounting 2(-2)² -3(3) -3(-5) = 2(4) -9 +15 = 8-9 +15= 14 3. Simplify:   C.  (Correct Answer)   story You ex behave to simplify separately exponent, since you are dealing with a square root you need to rewrite the exponents as neverthe little exponents. a³ = a²a b?= b?b Z³ =Z²Z Now you can drainage ar ea the exponents by two: ab³Z and the balance pluck has to be inside the square root ?(abZ) 4. Multiply: (3X -5)(2X+ 5)    5. act: 3(5X-1)<4(X-6)  write up 3(5X-1)<4(X-6) 15X-3 < 4X -24 15X-4X < -24 + 3 11X < -21 X< -21/11 6.

Solve for X: 3(X-5)-4X = 6(X-10) -(X+ 5)  Explanation 3X -15 -4X= 6X -60 -X- 5 -X -15= 5X -65 -6X= -65 +15 -6X= -50 X= -50/-6 = 25/3 7. Translate the following blame into an algebraic expression: The mathematical return of a rate and half dozen is three measure the same number less than ex Explanation The product message multiplication: 6 and X is means rival sign = three times the same number less than ten ! 10 -3X 8. Simplify: -3(p-5p²) + 3p²-6P  Explanation -3p + 15p²+ 3p²-6p= 18p²-9p   9. Which of the following equations passes through and through point  (-3,-16) 10. ------------------------------------------------- Top of Form 11. Bottom of Form Explanation Substituting the determine in all the equations we get that the event is Y= 2X-10...If you emergency to get a full essay, do it on our website: OrderEssay.net

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