Tham khảo tài liệu 'sat 6 full tests phần 8', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Solve the equation 4 - X 4. 3jx 3 x 2 6. 8. If X 2Y 24 and Y - 3X 10 what is the value of X From the second equation Y 3X 10 replace this with Y in the first equation X 2 3X 10 24 X 6X 20 24 7X 4 X 4 7. 9. If X Y 15 and X - Y -5 what is the value of X Y Add the equations to get 2X 10 X 5. Y 15 - X 10. X Y 5 10 ỵ2. 10. The triangle in the figure above is not drawn to scale. If the measurement of angle 4 is what is the measurement of angles 1 and 2 in degrees Notice that angles 3 and 4 are vertical angles and thus equal. The sum of the angles in the triangle is 180o and therefore we can write the following connection angle 1 angle 2 180o the sum of angle 1 and 2 is equal to 180 - . 11. ABC is an isosceles triangle AB BC. If the measurement of angle ABC is between 102 and 105 what is the value of the measurement of angle BCA minus CAB Draw a sketch of the triangle. Since the triangle is an isosceles angles BCA CAB and therefore the answer to the question is always zero no matter what the third angle is. 12. If the sum of two numbers is 6 and their difference is 2 what is the square of their product Let X and Y be the two numbers. X Y 6 and Y - X 2 are the two equations. Y 4 and X 2. Their product is 8 and the square of their product is 82 64. Chapter 2 1. If the product of two numbers is 9 and their difference is 0 what is their sum Let X and Y be the numbers. We can write the following equations XY 9 and Y - X 0. Y X X2 9 X Y 3. The sum of the numbers is 3 3 6. 2. If 645 22X what is the value of X Rewrite the expression 645 22X 26 5 22X 230 22X Compare the powers 2X 30 X 15. 3. If 1253 5y what is the value of 3Y Rewrite the expression 1253 5Y 53 3 5Y 59 5Y Compare the powers Y 9. The Value of 3y 2 27 2 . 4. If the perimeter of a rectangle is four times the length of the rectangle then the width of the rectangle is what percent of the length Let W be the width and L the length of the rectangle. The perimeter of the rectangle .
