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AVprozaik [17]
3 years ago
15

Robert needs enough mulch to cover the triangular garden shown below. If one bag of mulch covers 12 square feet, how many bags o

f mulch does he need to buy?

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

≈ 6 bags

Step-by-step explanation:

We need to find the area of the triangle

A = 1/2*the base*the height

Here we have:

  • the base: 14.1 ft
  • the height: 9 ft

=> the area of the triangular garden is: A = 1/2*14.1*9 = 63.45 square feet

Because one bag of mulch covers 12 square feet

=> the number of bags he need to buy is:

= the area of the triangular garden / the area of the bag can cover

= 63.45 / 12 ≈5.2875 bags

≈ 6 bags

nexus9112 [7]3 years ago
4 0
He needs to buy 6 bags of mulch
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x^2+y^2=81

Step-by-step explanation:

step 1

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we know that

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the formula to calculate the distance between two points is equal to

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we have the points

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substitute in the formula

r=\sqrt{-9-0)^{2}+(0-0)^{2}}

r=\sqrt{-9)^{2}+(0)^{2}}

r=9/ units

step 2

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Answer:

\displaystyle m=2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Reading a Cartesian plane
  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-5, 0)

Point (-9, -8)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope<em> m</em>

  1. Substitute in points [Slope Formula]:                                                            \displaystyle m=\frac{-8-0}{-9+5}
  2. [Fraction] Subtract/Add:                                                                                 \displaystyle m=\frac{-8}{-4}
  3. [Fraction] Divide:                                                                                            \displaystyle m=2
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3 years ago
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