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3 years ago

NEED HELP NOW. WILL GIVE BRAINLIEST

Mathematics

2 answers:

Maurinko [17]3 years ago

8 0

Answer:

yea listen to the other person

Step-by-step explanation:

goldenfox [79]3 years ago

3 0

Answer: y = -2x² + 920x - 84168

suppose: the equation of the parabola is y = ax² + bx + c

because the parabola passes through (126,0); (134,3200); (334,0)

=> we have the equations:

126².a + 126b + c = 0

134².a + 134b + c = 3200

334². a + 334b + c = 0

⇒ a = -2

b = 920

c = -84168

=> the equation of the parabola is y = -2x² + 920x - 84168

Step-by-step explanation:

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A circle has a circumference of 44m. What

MakcuM [25]

<h3>Answer: B. 154 square meters</h3>

================================

Work Shown:

C = 44 is the circumference

in general, the circumference of a circle is

C = 2*pi*r

Plug in C = 44 and solve for r.

C = 2*pi*r

44 = 2*pi*r

2*pi*r = 44

r = 44/(2pi)

r = 7.0028175 which is approximate

--------------------

Now plug this into the formula for the area of a circle

A = pi*r^2

A = pi*(7.0028175)^2

A = 154.061985

A = 154 rounding to the nearest whole number

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4 years ago

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An accounting professor wishing to know how many MBA students would take a summer elective in international accounting did a sur

aleksandrvk [35]

Answer: Convenience sample.

Step-by-step explanation:

Convenience sample is also known as grab or accident or opportunity samples. It is a example of non probability sample that involves selecting of subjects because of the proximity, convenience and accessibility a researcher as to them. This type of samples are not reliable for data gathering when it involves a very large sample space, let's say a global audience.

6 0

3 years ago

Here is rectangle A. Block A. Rectangle B is ¹/₅ longer than A Block B. Rectangle C is ¹/₃ longer than B Block C. The total leng

Hoochie [10]

Answer:

Rectangle C is 14 cm longer than B

Step-by-step explanation:

Let x be the length of Rectangle A. Rectangle B is ¹/₅ longer than A Block B,

Therefore the length of rectangle B is:

$x+\frac{1}{5}x$

Rectangle C is ¹/₃ longer than B, therefore the length of rectangle c is:

$x+\frac{1}{5}x+\frac{1}{3}(x+\frac{1}{5}x) =x+ \frac{1}{5}x+\frac{1}{3}x+\frac{1}{15}x=x+\frac{9}{15}x$

The total length of all three rectangles is 133 cm.

Length of rectangle A + Length of rectangle B + Length of rectangle C = 133 cm

$x+x+\frac{1}{5}x +x+\frac{9}{15}x=133\\x+x+x+\frac{1}{5}x +\frac{9}{15}x=133\\3x+\frac{12}{15}x=133\\ 45x+12x=1995\\57x=1995\\x=35cm$

Therefore the length of rectangle A is 35 cm, the length of rectangle B is $35+\frac{1}{5}*35=42\ cm$ and the length of rectangle C is $35+\frac{9}{15}*35=56\ cm$