Provide an appropriate response.Select a decimal percent with three digits and write it as a fraction. Select a fraction with a
denominator and write it as a percent. Explain each step of your work.
What will be an ideal response?
Answers will vary.
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Solve the problem.If a rock falls from a height of 70 meters above the ground, the height H (in meters) after x seconds can be approximated using the formula H = 70 - 4.9x2. What is the height of the rock after 2 seconds?
A. 60.2 m B. 260.4 m C. -26.04 m D. 50.4 m
Solve the application involving a linear inequality and its graph. Carlos needs at least $380 to buy a new smartphone. He works x hours at a restaurant for $13 per hour and y hours as a tutor for $25 per hour. The inequality models the amount of money Carlos must earn to buy the new phone. The inequality is graphed below.
Determine whether the ordered pair (15, 20) is a solution to the inequality and explain its real-world meaning.
A. (15, 20) is a solution. If Carlos works 15 hours at $25 per hour and 20 hours at $13 per hour, he will be able to purchase the new phone. B. (15, 20) is a solution. If Carlos works 15 hours at $13 per hour and 20 hours at $25 per hour, he will be able to purchase the new phone. C. (15, 20) is not a solution. If Carlos works 15 hours at $25 per hour and 20 hours at $13 per hour, he will not be able to purchase the new phone. D. (15, 20) is not a solution. If Carlos works 15 hours at $13 per hour and 20 hours at $25 per hour, he will not be able to purchase the new phone.
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 75°
A. -
B. -
C.
D.
Use trigonometric identities to find the exact value.
A. -
B. -
C. -2
D. -