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Flura [38]
3 years ago
12

2) Luciano é dono de um terreno em forma de trapézio que possui bases de 10 e 18 metros e comprimento de 8 metros. Qual a área d

esse terreno? 1 ponto (a) 80 m² (b) 144 m² (c) 224 m² (d) 112 m²
Mathematics
1 answer:
Irina18 [472]3 years ago
5 0

Answer:

<h2>(d) 112 m²</h2>

Step-by-step explanation:

We know by given that the bases of the form are 10 and 18 meters, and its height is 8 meters.

The area of a trapezoid is defined as

A=\frac{(B+b)h}{2}

Replacing given values, we have

A=\frac{(18+10)8}{2}=112 \ m^{2}

Therefore, the right answer is D.

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Find the value of x in simplest radical form
Dominik [7]

Answer:

Step-by-step explanation:

h^2=x^2+y^2, here x and y are equal so we can say

h^2=2x^2, we see that h=2(2^(1/2)) so

2x^2=8

x^2=4

x=2

4 0
3 years ago
You have $40 to spend on n gallons of gas that costs $3.25 per gallon. ​
Citrus2011 [14]

Answer:

You can buy 12 gallons of gas.

Step-by-step explanation:

I took 40 and 3.25, then divided them.

I got a very large ugly decimal. When simplified it is 12.

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3 years ago
The exponent equivalent of 20 x 20 x 20 is
geniusboy [140]

Answer:

20 to the 5th power

Step-by-step explanation:

7 0
3 years ago
Which equation represents the circle described? (in picture)
Sedaia [141]
You are right. In circle equation we have =r² so the correct answer will be C od D.  But we have to calculate the center of a circle.

x^2+y^2-8x-6y+24=0\quad|-24\\\\(x^2-8x)+(y^2-6y)=-24

Complete the square:

x^2-8x+a^2\implies a=\dfrac{8x}{2x}=4\implies x^2-8x+4^2\\\\\\y^2-6y+b^2\implies b=\dfrac{6y}{2y}=3\implies y^2-6y+3^2

And we have:

(x^2-8x)+(y^2-6y)=-24\\\\(x^2-8x+4^2)-4^2+(y^2-6y+3^2)-3^2=-24\\\\&#10;(x-4)^2+(y-3)^2-16-9=-24\\\\(x-4)^2+(y-3)^2-25=-24\quad|+25\\\\\boxed{(x-4)^2+(y-3)^2=1}

So the answer is C (the same left side of equation).
6 0
3 years ago
Solve: x³-7x²+36=0.​
Aliun [14]

Answer:

3,6,-2

Step-by-step explanation:

a+2a+b = 7

2a^2b = -36

a*2a + ab + 2ab = 0

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so, b = -2a/3

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3 0
3 years ago
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