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kifflom [539]
3 years ago
7

What is the area of this trapezoid? asap

Mathematics
2 answers:
Drupady [299]3 years ago
8 0

Answer:

209 ft^2

Step-by-step explanation:

There are two methods

the first one is

(b1 + b2)/2 * h = area

(15+23)/2 * 11 = 209

The second one is

((b2 - b1) * h)/2 + (b1 * h) = area

(8 * 11)/2 + (15 * 11) = 209

**double check with calculator

dezoksy [38]3 years ago
4 0

Answer:

3796 Answer D

Step-by-step explanation:

I multiplied all of the slides. I hope this helps.

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Solve the following quadratic equation by completing the square: x² + 12x = 15
Lerok [7]
Answer:

x = -1.14 or -13.14

Explanations:

The given equation is:

x^2+12x\text{  =  15}

Find the half of 12, and add the square to both sides of the equation.

That is add 6² to both sides

x^2+12x\text{ + 6}^{2}\text{  =  15 + 6}^{2}\begin{gathered} (x+6)^2\text{ =  15  +  3}6 \\ (x+6)^2\text{ = 51} \\  \end{gathered}

Find the square root of both sides:

\begin{gathered} \sqrt[]{(x+6)^2_{}}=\pm\sqrt[]{51} \\ \text{x  +  6  = }\pm\sqrt[]{51} \\ x\text{  =  -6  }\pm\sqrt[]{51} \\ \text{x  = }-6\pm7.14 \\ x\text{  = -6+7.14  = }1.14 \\ x\text{ = -6 - 7.14} \\ \text{x = -13.14} \end{gathered}

x = -1.14 or -13.14

3 0
11 months ago
What is the length of JL?
BaLLatris [955]
Answer: 8 Units



btw have a good day :)
4 0
3 years ago
Read 2 more answers
Rewrite 2/5 + 5/12 with a common denominator.
RoseWind [281]

Answer:60 is the common denominator

Step-by-step explanation:

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3 years ago
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