Anglojenineidn
Answered

IDNStudy.com, ang perpektong platform para sa eksaktong at maaasahang mga sagot. Anuman ang kahirapan ng iyong mga tanong, ang aming komunidad ay may mga sagot na kailangan mo.

Hello!!! Pahelp po ulit sa assignment ko sa Math.

1. The length of a garden is 5m longer than its width and the area is 19m². How long is the garden? Represent, Form and Solve.
2. The Product of two consecutive number is 650, find the numbers. Form a quadratic equation and solve by factoring.
3. For the equation 3x² - 8x + c =0, find the value of c. so that the equation has only one real solution.
4. Your home is built on a square lot. To add more space to your yard, you purchase an additional 8m along the side of the property. The area of the lot is now 345m². What are the dimensions of the new lot. illustrate,represent,form and solve the equation of the problem.

GUYS!!! Help me please!! Thank you!

Sagot :

Kaiusidn
(1.) We let X be the width. So we write: L = 5 + W. We write the area as: 19 = (5 + W)(W) --> 0 = W^2 + 5W - 19 --> We can't solve the equation by factoring, so we solve this by quadratic formula. So we get: W = -7.52, 2.52. We can't have a negative width so we use 2.52: L = 2.52 + 5 = 7.52. Length: 7.52 m long. (2.) We let X be the 1st number and X + 1 be the 2nd number. We write: (X)(X + 1) = 650 --> X^2 + X - 650 = 0 --> (X - 25)(X + 26) = 0 --> X = -26, 25. So the numbers are: (25 and 26) and (-26 and -25). (3.) We use completing the square to find C: 3[x² - (8/3)x + (8/6)^2 = 0] --> 3[x² - (8/3)x + (64/36) = 0] --> 3x² - 8x + (32/9) = 0 (4.) Let X be the original length of the lot. We write: (X)(X + 8) = 345 --> X^2 + 8X - 345 = 0 --> (X - 15)(X + 23) = 0 --> We use X = 15. The new dimensions are 15 m by 23 m.
Ang iyong aktibong pakikilahok ay mahalaga sa amin. Magpatuloy sa pagtatanong at pagbahagi ng iyong nalalaman. Sama-sama tayong lumikha ng isang komunidad ng karunungan. Salamat sa pagpili sa IDNStudy.com. Umaasa kami na makita ka ulit para sa mas maraming solusyon.