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OlgaM077 [116]
4 years ago
6

What is the area of A is 7.7ft and B is 5.2ft and C is 9.29 and this is a triangle

Mathematics
1 answer:
klasskru [66]4 years ago
8 0
First find half of the perimeter of the triangle: s = (a + b + c) / 2 = 11.095

Then the area is:

A = Square Root [11.095 (11.095 - 7.7)(11.095 - 5.2)(11.095 - 9.29)] = 20.01999895 or 20.02 square feet rounded to 2 decimal places.
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(2x-10)(x+3)<br> Simplify each expression
irga5000 [103]
2x^2-4x-30 would be your answer

<span><span>(<span><span>2x</span>−10</span>)</span><span>(<span>x+3</span>)
</span></span><span>=<span><span>(<span><span>2x</span>+<span>−10</span></span>)</span><span>(<span>x+3</span>)
</span></span></span><span>=<span><span><span><span><span>(<span>2x</span>)</span><span>(x)</span></span>+<span><span>(<span>2x</span>)</span><span>(3)</span></span></span>+<span><span>(<span>−10</span>)</span><span>(x)</span></span></span>+<span><span>(<span>−10</span>)</span><span>(3)
</span></span></span></span><span>=<span><span><span><span>2<span>x2</span></span>+<span>6x</span></span>−<span>10x</span></span>−30
</span></span><span>=<span><span><span>2<span>x2</span></span>−<span>4x</span></span>−<span>30</span></span></span>
5 0
4 years ago
Read 2 more answers
I need help!<br><br>Question 1 and 2 have the same questions so HELP!!
ANEK [815]

Answer:

21.99 or just round to 22

Step-by-step explanation:

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3 0
3 years ago
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Kevin cuts lawns during the summer months. He charges $10 plus $5 per hour. The algebraic model is C = 5h + 10, where C represen
Dafna1 [17]

Answer:

We have;

Hours (h),                            Total cost C

1,                                           5*1 + 10 =  $15

2,                                          5*2 + 10 = $20

3,                                          5*3 + 10 =  $25

4,                                          5*4 + 10 =  $30

5,                                          5*5 + 10 =  $35

Step-by-step explanation:

The given parameters are;

Kevin's fixed charge for lawn cutting = $10

Kevin's charge for lawn cutting per hour = $5

The total cost, C, for cutting lawn cutting by Kevin is C = 5h + 10

7 0
4 years ago
plz this is easy just answer Use &lt; or &gt; to compare the integers. –14 and –3 A. –14 &gt; –3 B. –14 &lt; –3
oee [108]
It would be B. because if you put the numbers on a number line, you notice that -14 is further down than -3 since -3 is closer to 0, so -14 is less than -3
3 0
3 years ago
What is -42 minus 10 equals -52?
Lemur [1.5K]
-52=-52 is the answer
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