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Montano1993 [528]
3 years ago
11

The measure of all of the interior angles of a triangle are in the extended ration 1 : 2 : 3. Which of the following choices is

the value of the smallest angle?
A. 20 degrees

B. 30 degrees

C. 60 degrees

D. None of the choices are correct.

Mathematics
2 answers:
Nezavi [6.7K]3 years ago
8 0
Let the angles be in the ratio of 1:2:3 which is given.
The smallest angle is x
The next angle is 2x
The largest angle is 3x

All triangles have 180 degrees.

x + 2x + 3x = 180
6x = 180 
x = 180/6
x = 30 degrees. The smallest angle is 30 degrees.

Doss [256]3 years ago
5 0
The total of ratio units is 1 +2 +3 = 6.
The total of angles in a triangle is 180°.
Each ratio unit stands for 180°/6 = 30°.
The smallest angle is 1 ratio unit, so is 30°, matching the 2nd selection.
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C. 56

Step-by-step explanation:

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Using the formula you can get this answer

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In Argentina, a cow on a ranch is expected to need an average of 4200 m2
nika2105 [10]

The cows of Argentina needs an approximate area of 4200 m² for grazing, and there is a total of 4500 cows.

And we are asked to find the total area of their grazing but in hectares. So, we can write:

1 \: cow = 4200 \:  {m}^{2}

Then, for 4500 cows:

4500 \: cows = 4200 \:  {m}^{2}  \times 4500

4500 \: cows = 18900000 \: m {}^{2}

We know that, 1 hectares = 10000 m² = 10⁴ m²

Then let the area of the field be x in hectares:

1 \: hectare = 10000 \:  {m}^{2}

x \: hectare = 18900000 \:  {m}^{2}

Then, putting them in proportion, We will get:

x =  \dfrac{18900000}{10000} hectares

x =  \boxed{ 1890 \: hectares}

So, the total area in hectares = <u>1</u><u>8</u><u>9</u><u>0</u><u> </u><u>hectares</u><u>.</u>

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3 years ago
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ivann1987 [24]

Answer:

9. 7/2

10. -6

Step-by-step explanation:

3 0
2 years ago
A rectangle has an area of 8x2 - 2x - 45. The length of the
Savatey [412]

Answer:

Width = W = 2x-5

Step-by-step explanation:

Given Data:

Length of rectangle = L = 4x + 9 ------->(Equation 1)

Area of rectangle = A = 8x^{2} - 2x -45 square inches ------->(Equation 2)

To find out:  

Width of rectangle = W = ?  

Formula:  

Area = A = L×W

Width = W = \frac{A}{L}

Solution:  

Width = W = \frac{A}{L}

Width = W = \frac{8x^{2} - 2x - 45 }{4x+9}

For complete division check the attached image.

Width = W = 2x-5 inches

 

5 0
3 years ago
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