math

posted by .

Mrs. Jones is building a deck behind her house. Top 28 ft; Right 25 ft; Bottom 4 ft. What is the length of the unlabeled Left side of this deck?

Ans. 7 ft.
Book's explanation: 〖25〗^2-〖24〗^2=625-576=49=7
Where did they get 24 from? Thank you for your help!

  • math -

    I can't picture the deck. Top? Bottom?

    All I can say is that 24 = 28-4, the difference between top and bottom.

    But the 7^2+24^2=25^2 seems to be for the legs and diagonal of a triangle. Oh, well, maybe you have a diagram in front of you.

  • math -

    New tile is being laid on a floor that is 12 ft. long and 9 ft. wide. Each square tile measures 9 inches on each side. How many tiles will be needed?

    Ans. 192
    Please tell me how they got 192
    Thank you.

    PS digressing
    how do I sent you diagrams, i.g., triangle diagram of a deck?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. mathematics

    ∫▒dx/(x√(2x^2+5x+1)) 2. ∫▒dx/(x√(x^2+4x-2)) 3. ∫▒dx/(sinx+13cosx-11) 4. ∫▒〖(x^2-x+4)ln⁡(x+√(x^2-1) dx)〗 5. ∫▒e^cos2x sin4x dx 6. ∫▒x^3 …
  2. math

    log_(1/4)⁡〖1/64〗+log_2⁡〖1/32〗-log_9⁡〖(75+x)〗-log_27⁡9=(-14)/3
  3. chemistry

    1. Divide the ions below into 2 groups, those that tend to form soluble compounds and those that tend to form insoluble compounds. (〖Pb〗^(+2), 〖Na〗^+, 〖Nh4〗^+, 〖Ag〗^+, 〖NO3〗^-, …
  4. chemistry

    Questions 2-3 refer to : 〖KClO〗_3 + C_6 H_12 O_6 = KCl + 〖CO〗_2 + 〖H〗_2O?
  5. Physics

    Coefficient of volume expansion of some liquids(a/˚C) Alcohol=1.1x〖10〗^(-4) Glycerin=5.0x〖10〗^(-4) Water=3.7x〖10〗^(-4) Ether=1.63x〖10〗^(-4) Mercury= 1.1x〖10〗^(-4) …
  6. Physics

    Coefficient of volume expansion of some liquids(a/˚C) Alcohol=1.1x〖10〗^(-4) Glycerin=5.0x〖10〗^(-4) Water=3.7x〖10〗^(-4) Ether=1.63x〖10〗^(-4) Mercury= 1.1x〖10〗^(-4 …
  7. Physics

    Coefficient of volume expansion of some liquids(a/˚C) Alcohol=1.1x〖10〗^(-4) Glycerin=5.0x〖10〗^(-4) Water=3.7x〖10〗^(-4) Ether=1.63x〖10〗^(-4) Mercury= 1.1x〖10〗^(-4 …
  8. Math

    For a college football field with the dimension shown, the angle for kicking a field goal from a ( horizontal) distance of x feet from the goal post is given by∅(x)=tan^(-1)⁡〖(29.25/x〗)-〖tan^(-1) (〗⁡〖10.75/x〗) …
  9. PHYSICS

    Given a planar electromagnetic wave in vacuum whose B-field is denoted by Bx = 0, Bz = 0, B_y = 66.7 × 〖10〗^(-8) sin 4π〖10〗^6 (z-3×〖10〗^8 t) Write an expression for the E-field. …
  10. precalc

    Use the equation 〖(y+2)〗^2/4-((〖x+3)〗^2)/49=1 to find the following: a. center: b. vertices: c. foci: d. graph:

More Similar Questions