Unit 9 Test Math Models B- Spring- PHS - Martynenko, Anastasia / Unit 9 - Solving Problems Using Models Q 3. Select all that apply. 1 0 8 0 4 2 Ezeanyike Find the lengths of the sides of a right triangle when sin A = 0.25. All changes saved O V15 0 2 01 0 V0.25 4. Choose the correct answer. In the equation y = 34, 185(1 + 0.02)", what is the growth or decay factor? 1.02 0.02 34,185 O z Q 5. Choose the correct answer. Given two trig ratios, find the third without using a calculator. sin = 13 .cos = 12 . t O 13 O 13 6. Choose the correct answ A force of 25 Newtons will compress a spring 1.25 meters. What is the spring constant of the spring? 23.75 N/m 25 N/m 26.25 N/m 20 N/m 7. Choose the correct answer. If y varies directly as x and inversely as z , and y = 5 when z = 4 and = = 3 , find y when z = 8 and = = 1. O 1 45 30 O 7.5 00:46:43 PREVIOUS 1-24 of 24 NEXT REVIEWUnit 9 Test Math Models B- Spring - PHS - Mart In a right triangle, the ratio of the length of the leg opposite length of the leg adjacent to the acute angle is called the_ sine All changes saved tangent cosine 9. Choose the corre A weather balloon with a volume of 5 liters at a pressure of 1.0 will have what volume when the pressure is 0.2 and the same temperature? 48L 52L 25L OIL 10. Choose the correct answer. Nobelium-253 has a half-life of 102 seconds. How much of a 3 gram sample will remain after 285 seconds? 0.43 g 0.27 g 279 1.07 g 11. Choose the In a right triangle, the ratio of the length of the leg adjacent to an acute angle to the length of the hypotenuse is called the_ cosine O sine O tangent 12. Choose the correct answer Convert 2 radians to degrees. 180 45 13. Choose the correct answer. What force is required to compress a spring with spring constant & = 400 N/m 0.4 meters? O -160 N O -1, 600 N O -16 N O -1.60 N 00:46:23 PREVIOUS 1-24 of 24 NEXT REVIEWUnit 9 Test Math Models B- Spring - PHS - Martynenko, Anastasia / Unit 9 - Solving Problems Using Models 1 0 8 0 4 2 Ezeanyike 14. Choose the correct answer. All changes saved If a baseball has a mass of 0.145 kg what is the force exerted by the catcher to stop it as it accelerates at 2,000 m/s?? 290 N 2,900 N 29 N 29N 15. Choose the correct answ What was the initial quantity of nobelium-253, which has a half-life of 102 seconds, if after 300 seconds, there are 50 g in the sample? 384.02 g O 17g 170 g 147.06 g 16. Choose the correct an Lynn is flying a kite in her yard. She has let out 25 meters of kite st high is the kite flying, to the nearest tenth of a meter? 25 n 37 O 15.0m 20.0 m 128m O 18.1 m 17. Choose the correct answer. - variation is a relationship whe firectly as the product of two other variables. Direct Joint Inverse 18. Choose the correct answer variation is a relationship where one two variables is a constant. Direct O Inverse O Joint PREVIOUS 1-24 of 24 NEXT REVIEWUnit 9 Test Math Models B - Spring - PHS - Martynenko ia / Unit 9 - Solving Problems Using Models 1 0 8 0 4 2 Ezeanyike In the equation y = 34, 185(1 + 0.02)*, what is the initial value? All changes saved 1.02 O z 0.02 34,185 20. Choose the correct answers. The bluebird population in a certain park is 250 and is increasing by 18% each year. Write a model for this situation. Using your model, how many bluebirds will be present after 5 years? a. 571 bluebirds b. A (t) = 250(0.18) C. A (t) = 250(1 + 0.18) d. 87 bluebirds e. A (t) = 250(0.81) Q 21. Select all that apply. Choose the degree measures of both acute angles. egs 2 cm and 3 cm 0 56.3 45.0" 0 33.7 0 65.4 O 24.60 22. Choose the correct answ In the equation, y = 34, 185(1 + 0.02)*, what is the growth or decay rate? 0.02 1.02 O z 34,185 23. Choose the correct answer. In a right triangle, the ratio of the length of the leg e is called the_ sing O tangent O cosine PREVIOUS 1-24 of 24 NEXT REVIEWUnit 9 Test Math Models B- Spring - PHS - Martynenko, Anastasia / Unit 9 - Solving Problems Using Models 20. Choo The bluebird population in a certain park is 250 and is increasing by 18's each year. All changes saved Write a model for this situation. X Using your model, how many bluebirds will be present after 5 year a. 571 bluebirds b. A (1) = 250(0.18) C. A (t) = 250(1 + 0.18) d. 87 bluebirds e. A (#) = 250(0.81) 21. Select all that apply. Choose the degree measures of both acute angles. legs 2 cm and 3 cm 0 56.3 45.0" 33.7 0 65.4 0 24.6" 22. Choose the correct answer. n the equation, y = 34, 185(1 + 0.02)*, what is the growth or decay rate? 0.02 1.02 O z 34,185 Q 23. Choose the correct an In a right triangle, the ratio of the length of the leg e is called the_ sine O tangent cosine 24. Choose If y varies jointly as z and = , and y = 20 when z = 15 and = = 6, find y when z =- 9 and = = 7. O 13 14 16 15 PREVIOUS 1-24 of 24 NEXT REVIEW