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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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\text{If is}\ f(x)=\sqrt{7x}+21\ \text{then the domain is:}\\\\7x\geq0\ \ \ |:7\\x\geq0\to x\in[0;\ \infty)

6 0
3 years ago
If 5\17 of a region is shaded what part is not shaded
adelina 88 [10]
5/17 means 5 parts of 17
17-5=12
So if 5/17 is shaded, 12/17 is not.

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3 0
3 years ago
Please help. This is due soon. Ty 
Nataliya [291]

Answer:

3 dollars and 9 cents.

Step-by-step explanation:

From the question given above, the following data were obtained:

Total amount = 20 dollars

Amount for gift A = 9 7/10 dollars

Amount for gift B = 6 2/5 dollars

Amount for gift C =?

The amount of money she has left for gift C can be obtained as follow:

A + B + C = 20

9 7/10 + 6 2/5 + C = 20

Change to improper fraction

97/10 + 32/5 + C = 20

(97 + 64)/10 + C = 20

161/10 + C = 20

Collect like terms

C = 20 – 161/10

C = (200 – 161)/10

C = 39/10

Change to mixed fraction

C = 3 9/10 dollars

C = 3.9

C = 3 dollars and 9 cents

Therefore, Kathy had 3 dollars and 9 cent for gift C

5 0
3 years ago
For the following real-world examples, determine whether each situation represents a percent increase or a percent decrease. ( i
VikaD [51]

Answer:

  1. increase
  2. decrease
  3. increase

Step-by-step explanation:

  • A sales tax is ALWAYS an increase. That's why governments use sales taxes.
  • A discount is ALWAYS a decrease. That's it's definition. You are being given a break.
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4 0
3 years ago
Please help this is due today
Mekhanik [1.2K]

Answer:

90 is the distince of the lake

3 0
3 years ago
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