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klio [65]
3 years ago
8

Find the area of the trapezoid.

Mathematics
2 answers:
LuckyWell [14K]3 years ago
6 0
The area of the trapizoif is 97.5
solniwko [45]3 years ago
5 0

\bf \textit{area of a trapezoid}\\\\
A=\cfrac{h(a+b)}{2}~~
\begin{cases}
a, b=\stackrel{bases}{parallel~sides} \\
h=height\\[-0.5em]
\hrulefill\\
a=20\\
b=25\\
h=15
\end{cases}\implies A=\cfrac{15(20+25)}{2}
\\\\\\
A=\cfrac{15(45)}{2}\implies A=337.5

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Evaluate the expression when n= 3.<br> n2+8n+6
Katyanochek1 [597]

Answer:

36

Step-by-step explanation:

4 0
2 years ago
Dexter has 83 tiles left over from tiling his bathroom floor and he would like to use them to tile the front entrance of his hou
creativ13 [48]

Answer: [0, 396]

Step-by-step explanation:

The domain is the acceptable values of x in the function.  In this case, x = t, the number of tiles.  If you think about it, the minimum number of tiles is 0 (you can't have a negative number of tiles), and the maximum number of tiles is 44 (you only have 44 tiles).  So, the domain for this function is from 0 to 44.

0 to 44 written in interval notation is [0,44].

The range is the acceptable values of y in the function.  In this case, y = A, the area given.  A(t) = 9t, so you can use the acceptable values of t to get the range.  Again, the minimum area is 0 because you can't have negative area. To find the maximum area, plug in the maximum number of tiles: 9.

A(t) = 9t

A = 9(44)

A = 396

With the maximum number of tiles, 44, the area you get is 396 cm².  Therefore, the acceptable values of A are from 0 to 396.

0 to 396 written in interval notation is [0, 396].

4 0
3 years ago
What is an equation of the line that passes through the points (-4, -5) and<br> (-8, -2)?
nikklg [1K]

Solution:

<u>Step-1: Find the slope of the line.</u>

Formula of slope: y₂ - y₁/x₂ - x₁

  • y₂ - y₁/x₂ - x₁ = Slope
  • => -2 - (-5)/-8 - (-4) = Slope
  • => -2 + 5/-8 + 4 = Slope
  • => 3/-4 = Slope

<u>Step-2: Use the point slope formula to determine the slope.</u>

Point slope form formula: y - y₁ = m(x - x₁)

  • y - y₁ = m(x - x₁) = Equation of line
  • => y - (-5) = -3/4{x - (-4)} = Equation of line
  • => y + 5 = -3/4{x + 4} = Equation of line
  • => y + 5 = -3x/4 - 3 = Equation of line
  • => y = -3x/4 - 8 = Equation of line

The equation of the line is <u>y = -3x/4 - 8.</u>

7 0
2 years ago
Read 2 more answers
10 points each question :)<br> Please help, I don't really understand these :-(
stellarik [79]
Answer is b
you welcom and i hope this helps
8 0
3 years ago
Read 2 more answers
Ok so I have 40 and I need to make it into a mixed fraction
slava [35]
Your Answer Is 40 It’s Simple Really If You Kinda Think About It But Has A Fraction It Would Be 40/1
8 0
3 years ago
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