First Course in Algebra, Βιβλίο 1Macmillan, 1919 - 334 σελίδες |
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Σελίδα 21
... length ; if the sides are 15 inches and 22 inches in length . [ HINT . Use the formula you ob- tained in Ex . 20. ] Right h y Triangle X FIG . 9 . 22. The circumference of a circle is ex- pressed by I , § 15 ] 21 LITERAL NUMBERS.
... length ; if the sides are 15 inches and 22 inches in length . [ HINT . Use the formula you ob- tained in Ex . 20. ] Right h y Triangle X FIG . 9 . 22. The circumference of a circle is ex- pressed by I , § 15 ] 21 LITERAL NUMBERS.
Σελίδα 22
... circle is r = C 2 π " π where r stands for the radius , C for the circumference , and has the value mentioned in Ex . 22. Write out ( in words ) the rule thus ex- pressed . 25. The formula for the area of a circle is A = r2 , where r ...
... circle is r = C 2 π " π where r stands for the radius , C for the circumference , and has the value mentioned in Ex . 22. Write out ( in words ) the rule thus ex- pressed . 25. The formula for the area of a circle is A = r2 , where r ...
Σελίδα 82
... circles , one of which has a radius twice as great as the other . See Ex . 25 , p . 22 . 20. Compare the volumes of two spheres , one of which has a radius twice as great as the other . See Ex . 28 , p . 23 . 51. Multiplication of a ...
... circles , one of which has a radius twice as great as the other . See Ex . 25 , p . 22 . 20. Compare the volumes of two spheres , one of which has a radius twice as great as the other . See Ex . 28 , p . 23 . 51. Multiplication of a ...
Σελίδα 88
... ? 30. What is the area of the trapezoid in Ex . 29 if x = 2 , y = 4 ? 31. If the radius of a circle is represented by x + 3 . what represents its area ? 54. Further Study of Factoring . We saw in § 88 [ VI , § 53 FIRST COURSE IN ALGEBRA.
... ? 30. What is the area of the trapezoid in Ex . 29 if x = 2 , y = 4 ? 31. If the radius of a circle is represented by x + 3 . what represents its area ? 54. Further Study of Factoring . We saw in § 88 [ VI , § 53 FIRST COURSE IN ALGEBRA.
Σελίδα 111
... circle of radius R and FIG . 32 . a smaller circle of radius r lying ( in any manner ) within it is equal to ( R + r ) ( R − r ) . [ HINT . π See Ex . 25 , p . 22. ] 5. The diameter of a certain sunflower was 10 inches , and the black ...
... circle of radius R and FIG . 32 . a smaller circle of radius r lying ( in any manner ) within it is equal to ( R + r ) ( R − r ) . [ HINT . π See Ex . 25 , p . 22. ] 5. The diameter of a certain sunflower was 10 inches , and the black ...
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a²+2ab+b² ab+b² added algebra Appendix arithmetic Axiom called cents CHAPTER check your answer circle coefficient common denominator common factor completing the square cube diameter divisor Draw the graph equal EXAMPLE EXERCISES Solve figure Find the H. C. F. Find the numbers Find the value following equations following exercises following expressions fraction further exercises given equation gives highest common factor HINT illustrated inches length lowest common means miles an hour minuend monomial multiply negative numbers numerator and denominator ORAL EXERCISES parentheses perfect square polynomial quadratic quadratic equation quotient radical radicand radius ratio represents result Similarly Simplify simultaneous equations SOLUTION Solve the equation square root subtract subtrahend SUPPLEMENTARY EXERCISES surd Transposing triangle trinomial weight wheel write WRITTEN EXERCISES x²y² yards