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Artist 52 [7]
3 years ago
12

Is the ordered pair (2.1) a solution to the system below?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
7 0

Answer:

The first solution is wrong, the second one is correct.

Step-by-step explanation:

21x+5y=21(2)+5(1)= 42+5= 47 then,

4x-3y=4(2)-3(1) = 8-3= 5.

2 is for x, then 1 is for y.

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Choose the correct conic section to fit the equation.
yanalaym [24]

Answer:

Option A) Circle.

Step-by-step explanation:

We are given the equation:

(x - 3)^2 + (y - 12)^2 = 25

A general equation of the circle is of the form:

(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center of the circle and r is the radius of circle.

Comparing the two equations, we get,

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Thus, the given equation is equation of a circle centered at (3,12) and of radius 5 units.

5 0
4 years ago
Old faithful in Yellowstone National Park shoots water 60 feet into the air that casts a shadow of 42 feet. What is the height o
Serhud [2]

Answer:

The height of near by tree will be 90 feet.

Step-by-step explanation:

Considering the water triangle as shown in figure a.

As the old faithful shoots water 60 feet into the air that casts a shadow of 42 feet.

Considering the tree triangle as shown in figure a. The tree triangle has a shadow 63 feet long.

Let x be the height of near by tree that cost a shadow 63 feet long.

Assuming that the triangles are similar

So,

the ratios of similar triangles will be related as:

\frac{63}{42}=\frac{x}{60}

\mathrm{Switch\:sides}

\frac{x}{60}=\frac{63}{42}

{x}=60.\frac{63}{42}

x=90 feet

Therefore, the height of near by tree will be 90 feet.

Keywords: ratio, similar triangle

Learn more about similar triangle from brainly.com/question/10161974

#learnwithBrainly

7 0
4 years ago
Complete this statement using &gt;, &lt;, or =<br><br> 0.248_____0.259
andreyandreev [35.5K]

Answer:

Here the most appropriate answer is '>'

Thus it will be 0.248<u> > </u>0.259

8 0
3 years ago
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