For the following exercises, enter the expressions into your graphing utility and find the zeroes to the equation (the x -intercepts) by using 2 n d CALC 2:zero. Recall finding zeroes will ask left bound (move your cursor to the left of the zero, enter), then right bound (move your cursor to the right of the zero, enter), then guess (move your cursor between the bounds near the zero, enter). Round your answers to the nearest thousandth. 45. Y 1 = − 3 x 2 + 8 x − 1
For the following exercises, enter the expressions into your graphing utility and find the zeroes to the equation (the x -intercepts) by using 2 n d CALC 2:zero. Recall finding zeroes will ask left bound (move your cursor to the left of the zero, enter), then right bound (move your cursor to the right of the zero, enter), then guess (move your cursor between the bounds near the zero, enter). Round your answers to the nearest thousandth. 45. Y 1 = − 3 x 2 + 8 x − 1
For the following exercises, enter the expressions into your graphing utility and find the zeroes to the equation (the x-intercepts) by using 2ndCALC 2:zero. Recall finding zeroes will ask left bound (move your cursor to the left of the zero, enter), then right bound (move your cursor to the right of the zero, enter), then guess (move your cursor between the bounds near the zero, enter). Round your answers to the nearest thousandth.
Question 14 (1 point)
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The frame on a picture is 18 in by 22 in outside and is of uniform width. Using
algebraic methods, what is the width of the frame if the inner area of the picture
shown is 250 in²2? Write answer to 2 decimal places. (Write the number with no
units).
18 in
Your Answer:
22 in
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A vacant lot is being converted into a community garden. The garden and a walkway
around its perimeter have an area of 560 square feet. Find the width of the walkway
(x) if the garden measures 15 feet wide by 19 feet long. Write answer to 2 decimal
places. (Write the number without units).
X
15 feet
Your Answer:
19 feet
X
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A stuntman jumps from a roof 440 feet from the ground. How long will it take him to
reach the ground? Use the formula, distance, d = 16t2, (where t is in seconds). Write
answer to 1 decimal place. (Write the number, not the units).
Your Answer:
College Algebra with Modeling & Visualization (5th Edition)
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