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sergejj [24]
2 years ago
5

The area of a triangular sign is 81ft2 if the base of the sign measures 18 what is the height of the sign

Mathematics
1 answer:
bagirrra123 [75]2 years ago
4 0
The answer would be 9. Hope that helped!
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How to find the bin size
labwork [276]
To find the area of a rectangular prism multiply length by width by height.


If the problem has a variable take the two other dimensions and multiply them together. Then take that number and subtract it from the total to find the number that the variable equals.
3 0
3 years ago
7. Solve the equation.<br> 6(x - 2) = 36<br> 0-8<br> 04<br> 04<br> 08<br> What one
rusak2 [61]

Answer:

8

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

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

6(x - 2) = 36

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Divide 6 on both sides:                     x - 2 = 6
  2. Add 2 on both sides:                         x = 8
6 0
3 years ago
For a school play, the teacher asked the class to set up chairs in 20 rows with 25 chairs in each row. After setting up all the
pantera1 [17]
20 rows * 25 chairs=500 chairs
500-5=495
Answer=495
6 0
3 years ago
Read 2 more answers
PLZ IM BEING TIME What is the reciprocal of 6 1/4 ?
Soloha48 [4]

Answer:

4/25

Step-by-step explanation:

6 1/4=25/4

The reciprocal of 25/4 is 4/25.

7 0
3 years ago
Find the area of the triangle with vertices: q(3,-4,-5), r(4,-1,-4), s(3,-5,-6).
maw [93]

Answer:

  (√6)/2 square units

Step-by-step explanation:

The area of a triangle is half the magnitude of the cross product of the vectors representing adjacent sides.

  QR = (4-3, -1-(-4), -4-(-5)) = (1, 3, 1)

  QS = (3 -3, -5-(-4), -6-(-5)) = (0, -1, -1)

The cross product is the determinant ...

\text{det}\left|\begin{array}{ccc}i&j&k\\1&3&1\\0&-1&-1\end{array}\right|=-2i+j-k

The magnitude of this is ...

  |QR × QS| = √((-2)² +1² +(-1)²) = √6

The area of the triangle is half this value:

  Area = (1/2)√6 . . . . square units

3 0
3 years ago
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