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Maru [420]
3 years ago
12

Round the fraction to the nearest whole number. 2 9

Mathematics
2 answers:
alexira [117]3 years ago
6 0

Answer:

3

Step-by-step explanation:

ratelena [41]3 years ago
4 0

Answer:

3

Step-by-step explanation:

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Since the triangles are similar, the ratio of the sides of larger triangle to the smaller triangle is a constant.

That constant = \frac{15}{9} =  \frac{5}{3}

Since the sides are in that constant proportion, the area of the triangles will also be in proportion.

(Area of larger triangle) over (Area of smaller triangle) = \frac{5}{3}

\frac{206}{x} =  \frac{5}{3}

x = 206 *  \frac{3}{5} =  \frac{618}{5} = 123.6 ≈ 124

Hence, to the nearest whole number the area of smaller triangle is 124 <span>ft</span>²<span>.</span>
7 0
3 years ago
Read 2 more answers
3. WEDNESDAY (5/20): The minimum of the graph of a quadratic function is located at (-1,2). The point (2, 2015
Vadim26 [7]

Answer:

C.) f(x) = 2x^2 + 4x + 4

Step-by-step explanation:

The equation of the parabola with vertex (h,k) is y=a(−h+x)^2+k.

Thus, the equation of the parabola is y=a(x+1)^2+2.

To find a, use the fact that the parabola passes through the point (2,20): 20=9a+2.

Solving this equation, we get that a=2.

Thus, the equation of the parabola is y=2(x+1)^2+2.

TO STANDARD FORM

= 2*(x^2+2x+1)+2  

=(2x^2+4x+2)+2  

= 2x^2+4x+2+2  

= 2x^2+4x+4

8 0
3 years ago
Which are the solutions of x2 = –11x + 4? StartFraction negative 11 minus StartRoot 137 EndRoot Over 2 EndFraction comma StartFr
Marysya12 [62]

Answer:

x_1=-\frac{11}{2}-\frac{\sqrt{137} }{2}\\\\x_2=-\frac{11}{2}+\frac{\sqrt{137} }{2}

Step-by-step explanation:

Given the following quadratic equation:

x^2 = -11x + 4

The steps to solve it are:

1. Move the terms to one side of the equation:

x^2+11x- 4=0

2. Apply the Quadratic formula x=\frac{-b\±\sqrt{b^2-4ac} }{2a}.

In this case we can identify that:

a=1\\b=11\\c=-4

Then, substituting these values into the Quadratic formula we get the following solutions:

x=\frac{-11\±\sqrt{11^2-4(1)(-4)} }{2(1)}

x_1=-\frac{11}{2}-\frac{\sqrt{137} }{2}\\\\x_2=-\frac{11}{2}+\frac{\sqrt{137} }{2}

3 0
3 years ago
Read 2 more answers
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