Elementary Algebra 17th Edition
ISBN: 9780998625713
Author: Lynn Marecek, MaryAnne Anthony-Smith
Publisher: Lynn Marecek, MaryAnne Anthony-Smith
1 Foundations 2 Solving Linear Equations And Inequalities 3 Math Models 4 Graphs 5 Systems Of Linear Equations 6 Polynomials 7 Factoring 8 Rational Expressions And Equations 9 Roots And Radicals 10 Quadratic Equations Chapter1: Foundations
1.1 Introduction To Whole Numbers 1.2 Use The Language Of Algebra 1.3 Add And Subtract Integers 1.4 Multiply And Divide Integers 1.5 Visualize Fractions 1.6 Add And Subtract Fractions 1.7 Decimals 1.8 The Real Numbers 1.9 Properties Of Real Numbers 1.10 Systems Of Measurement Chapter Questions Section1.7: Decimals
Problem 1.181TI: Name the decimal: 6.7. Problem 1.182TI: Name the decimal: 5.8. Problem 1.183TI: Name the decimal: 13.461. Problem 1.184TI: Name the decimal: 2.053. Problem 1.185TI: Write as a decimal: thirteen and sixty-eight thousandths. Problem 1.186TI: Write as a decimal: five and ninety-four thousandths. Problem 1.187TI: Round to the nearest hundredth: 1.047. Problem 1.188TI: Round to the nearest hundredth: 9.173. Problem 1.189TI: Round 6.582 to the nearest (a) hundredth (b) tenth (c) whole number. Problem 1.190TI: Round 15.2175 to the nearest (a) thousandth (b) hundredth (c) tenth. Problem 1.191TI: Add: 4.8+11.69 . Problem 1.192TI: Add: 5.123+18.47 . Problem 1.193TI: Subtract: 109.58 . Problem 1.194TI: Subtract: 5037.42 Problem 1.195TI: Multiply: 4.5(6.107) . Problem 1.196TI: Multiply: 10.79(8.12). Problem 1.197TI: Multiply 2.58 (a) by 10 (b) by 100 (c) by 1,000. Problem 1.198TI: Multiply 14.2 (a) by 10 (b) by 100 (c) by 1,000. Problem 1.199TI: Divide: 23.492(0.04) . Problem 1.200TI: Divide: 4.11(0.12) . Problem 1.201TI: Divide: 6.9936. Problem 1.202TI: Divide: 4.9912. Problem 1.203TI: Write 0.234 as a fraction. Problem 1.204TI: Write 0.024 as a fraction. Problem 1.205TI: Write 78 as a decimal. Problem 1.206TI: Write 38 as a decimal. Problem 1.207TI: Write 2711 as a decimal. Problem 1.208TI: Write 5122 as a decimal. Problem 1.209TI: Simplify: 38+4.9 . Problem 1.210TI: Simplify: 5.7+1320 . Problem 1.211TI: Convert each percent to a decimal: (a) 9% (b) 87% (c) 3.9%. Problem 1.212TI: Convert each percent to a decimal: (a) 3% (b) 91% (c) 8.3%. Problem 1.213TI: Convert each decimal to a percent: (a) 0.17 (b) 1.75 (c) 0.0825. Problem 1.214TI: Convert each decimal to a percent: (a) 0.41 (b) 2.25 (c) 0.0925. Problem 531E: In the following exercises, write as a decimal. 531. Twenty-nine and eighty-one hundredths Problem 532E: In the following exercises, write as a decimal. 532. Sixty-one and seventy-four hundredths Problem 533E: In the following exercises, write as a decimal. 533. Seven tenths Problem 534E: In the following exercises, write as a decimal. 534. Six tenths Problem 535E: In the following exercises, write as a decimal. 535. Twenty-nine thousandth Problem 536E: In the following exercises, write as a decimal. 536. Thirty-five thousandths Problem 537E: In the following exercises, write as a decimal. 537. Negative eleven and nine ten thousandths Problem 538E: In the following exercises, write as a decimal. 538. Negative fifty-nine and two ten-thousandths. Problem 539E: In the following exercises, write as a decimal. 539. 5.5 Problem 540E: In the following exercises, write as a decimal. 540. 14.02 Problem 541E: In the following exercises, write as a decimal. 541. 8.71 Problem 542E: In the following exercises, write as a decimal. 542. 2.64 Problem 543E: In the following exercises, write as a decimal. 543. 0.002 Problem 544E: In the following exercises, write as a decimal. 544. 0.479 Problem 545E: In the following exercises, write as a decimal. 545. 17.9 Problem 546E: In the following exercises, write as a decimal. 546. 31.4 Problem 547E: In the following exercises, round each number to the nearest tenth. 547. 0.67 Problem 548E: In the following exercises, round each number to the nearest tenth. 548. 0.49 Problem 549E: In the following exercises, round each number to the nearest tenth. 549. 2.84 Problem 550E: In the following exercises, round each number to the nearest tenth. 550.4.63 Problem 551E: In the following exercises, round each number to the nearest hundredth. 551. 0.845 Problem 552E: In the following exercises, round each number to the nearest hundredth. 552. 0.761 Problem 553E: In the following exercises, round each number to the nearest hundredth. 553. 0.299 Problem 554E: In the following exercises, round each number to the nearest hundredth. 554. 0.697 Problem 555E: In the following exercises, round each number to the nearest hundredth. 555. 4.098 Problem 556E: In the following exercises, round each number to the nearest hundredth. 556. 7.096 Problem 557E: In the following exercises, round each number to the nearest (a) hundredth (b) tenth (c) whole... Problem 558E: In the following exercises, round each number to the nearest (a) hundredth (b) tenth (c) whole... Problem 559E: In the following exercises, round each number to the nearest (a) hundredth (b) tenth (c) whole... Problem 560E: In the following exercises, round each number to the nearest (a) hundredth (b) tenth (c) whole... Problem 561E: In the following exercises, add or subtract. 561. 16.92+7.56 Problem 562E: In the following exercises, add or subtract. 562. 248.2591.29 Problem 563E: In the following exercises, add or subtract. 563. 21.7630.99 Problem 564E: In the following exercises, add or subtract. 564. 38.6+13.67 Problem 565E: In the following exercises, add or subtract. 565. 16.5324.38 Problem 566E: In the following exercises, add or subtract. 566. 19.4732.58 . Problem 567E: In the following exercises, add or subtract. 567. 38.69+31.47 Problem 568E: In the following exercises, add or subtract. 568. 29.83+19.76 Problem 569E: In the following exercises, add or subtract. 569. 72.5100 Problem 570E: In the following exercises, add or subtract. 570. 86.2100 Problem 571E: In the following exercises, add or subtract. 571. 15+0.73 Problem 572E: In the following exercises, add or subtract. 572. 27 + 0.87 Problem 573E: In the following exercises, add or subtract. 573. 91.95(10.462) Problem 574E: In the following exercises, add or subtract. 574. 94.69(12.678) Problem 575E: In the following exercises, add or subtract. 575. 55.013.7 Problem 576E: In the following exercises, add or subtract. 576. 59.084.6 Problem 577E: In the following exercises, add or subtract. 577. 2.517.4 Problem 578E: In the following exercises, add or subtract. 578. 3.846.1 Problem 579E: In the following exercises, multiply. 579. (0.24)(0.6) Problem 580E: In the following exercises, multiply. 580. (0.81)(0.3) Problem 581E: In the following exercises, multiply. 581. (5.9)(7.12) Problem 582E: In the following exercises, multiply. 582. (2.3)(9.41) Problem 583E: In the following exercises, multiply. 583. (4.3)(2.71) Problem 584E: In the following exercises, multiply. 548. (8.5)(1.69) Problem 585E: In the following exercises, multiply. 585. (5.18)(65.23) Problem 586E: In the following exercises, multiply. 586. (9.16)(68.34) Problem 587E: In the following exercises, multiply. 587. (0.06)(21.75) Problem 588E: In the following exercises, multiply. 588. (0.08)(52.45) Problem 589E: In the following exercises, multiply. 589. (9.24)(10) Problem 590E: In the following exercises, multiply. 590. (6.531)(10) Problem 591E: In the following exercises, multiply. 591. (55.2)(1000) Problem 592E: In the following exercises, multiply. 592. (99.4)(1000) Problem 593E: In the following exercises, divide. 593. 4.7525 Problem 594E: In the following exercises, divide. 594. 12.0443 Problem 595E: In the following exercises, divide. 595. 117.2548 Problem 596E: In the following exercises, divide. 596. 109.2436 . Problem 597E: In the following exercises, divide. 597. 0.60.2 Problem 598E: In the following exercises, divide. 598. 0.80.4 Problem 599E: In the following exercises, divide. 599. 1.44(0.3) Problem 600E: In the following exercises, divide. 600. 1.25(0.5) Problem 601E: In the following exercises, divide. 601. 1.75(0.05) Problem 602E: In the following exercises, divide. 602. 1.15(0.05) Problem 603E: In the following exercises, divide. 603. 5.22.5 Problem 604E: In the following exercises, divide. 604. 6.53.25 Problem 605E: In the following exercises, divide. 605. 110.55 Problem 606E: In the following exercises, divide. 606. 140.35 Problem 607E: In the following exercises, write each decimal as a fraction. 607. 0.04 Problem 608E: In the following exercises, write each decimal as a fraction. 608. 0.19 Problem 609E: In the following exercises, write each decimal as a fraction. 609. 0.52 Problem 610E: In the following exercises, write each decimal as a fraction. 610. 0.78 Problem 611E: In the following exercises, write each decimal as a fraction. 611. 1.25 Problem 612E: In the following exercises, write each decimal as a fraction. 612. 1.35 Problem 613E: In the following exercises, write each decimal as a fraction. 613. 0.375 Problem 614E: In the following exercises, write each decimal as a fraction. 614. 0.464 Problem 615E: In the following exercises, write each decimal as a fraction. 615. .095 Problem 616E: In the following exercises, write each decimal as a fraction. 616. 0.085 Problem 617E: In the following exercises, convert each fraction to a decimal. 617. 1720 Problem 618E: In the following exercises, convert each fraction to a decimal. 618. 1320 Problem 619E: In the following exercises, convert each fraction to a decimal. 619. 114 Problem 620E: In the following exercises, convert each fraction to a decimal. 620. 174 Problem 621E: In the following exercises, convert each fraction to a decimal. 621. 31025 Problem 622E: In the following exercises, convert each fraction to a decimal. 622. 28425 Problem 623E: In the following exercises, convert each fraction to a decimal. 623. 1511 Problem 624E: In the following exercises, convert each fraction to a decimal. 624. 1811 Problem 625E: In the following exercises, convert each fraction to a decimal. 625. 15111 Problem 626E: In the following exercises, convert each fraction to a decimal. 626. 25111 Problem 627E: In the following exercises, convert each fraction to a decimal. 627. 2.4+58 Problem 628E: In the following exercises, convert each fraction to a decimal. 628. 3.9+920 Problem 629E: In the following exercises, convert each percent to a decimal. 629. 1 Problem 630E: In the following exercises, convert each percent to a decimal. 630. 2% Problem 631E: In the following exercises, convert each percent to a decimal. 631. 63% Problem 632E: In the following exercises, convert each percent to a decimal. 632. 71% Problem 633E: In the following exercises, convert each percent to a decimal. 633. 150% Problem 634E: In the following exercises, convert each percent to a decimal. 634. 250% Problem 635E: In the following exercises, convert each percent to a decimal. 635. 21.4% Problem 636E: In the following exercises, convert each percent to a decimal. 636. 39.3% Problem 637E: In the following exercises, convert each percent to a decimal. 637. 7.8% Problem 638E: In the following exercises, convert each percent to a decimal. 638. 6.4% Problem 639E: In the following exercises, convert each decimal to a percent. 639. 0.01 Problem 640E: In the following exercises, convert each decimal to a percent. 640. 0.03 Problem 641E: In the following exercises, convert each decimal to a percent. 641. 1.35 Problem 642E: In the following exercises, convert each decimal to a percent. 642. 1.56 Problem 643E: In the following exercises, convert each decimal to a percent. 643. 3 Problem 644E: In the following exercises, convert each decimal to a percent. 644. 4 Problem 645E: In the following exercises, convert each decimal to a percent. 645. 0.0875 Problem 646E: In the following exercises, convert each decimal to a percent. 646. 0.0625 Problem 647E: In the following exercises, convert each decimal to a percent. 647. 2.254 Problem 648E: In the following exercises, convert each decimal to a percent. 648. 2.317 Problem 649E: Salary Increase Danny got a raise and now makes $58,965.95 a year. Round this number to the nearest... Problem 650E: New Car Purchase Selena’s new car cost $23,795.95. Round this number to the nearest (a) dollar (2)... Problem 651E: Sales Tax Hyo Jin lives in San Diego. She bought a refrigerator for $1,624.99 and when the clerk... Problem 652E: Sales Tax Jennifer bought a $1,038.99 dining room set for her home in Cincinnati. She calculated the... Problem 653E: Paycheck Annie has two jobs. She gets paid $14.04 per hour for tutoring at City College and $8.75... Problem 654E: Paycheck Jake has two jobs. He gets paid $7.95 per hour at the college cafeteria and $20.25 at the... Problem 655E: How does knowing about US money help you learn about decimals? Problem 656E: Explain how you write “three and nine hundredths” as a decimal. Problem 657E: Without solving the problem “44 is 80% of what numbers think about what the solution might be.... Problem 658E: When the Szetos sold their home, the selling price was 500% of what they had paid for the house 30... Problem 1.214TI: Convert each decimal to a percent: (a) 0.41 (b) 2.25 (c) 0.0925.
Related questions
1) Create a 99% confidence interval on the true standard deviation of driving speeds. Round your answer to 2 decimal places.
2) Is the assumption of normality required for this interval given that the sample size is 91?
Transcribed Image Text: n= 91, x= 66.2 mph, s = 3.4 mph
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
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