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1 year ago

Which equation could generate the curve in the graph below?

Mathematics

1 answer:

GREYUIT [131]1 year ago

7 0

A.) 3x^2-2x+1

If graphed, it is the only graph that goes above the x axis and touches the y axis at around that particular point.

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(-0.3) + 0.9 find the sum

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Answer: (-0.3) + 0.9= 0.6

Step-by-step explanation:

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3 years ago

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What is y-2=-2(x-3) In slope intercept form

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Answer:

y=-2x+8

Step-by-step explanation:

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3 years ago

PLEASE ANSWER

Olenka [21]

Answer:

x(1 - .4)

Step-by-step explanation:

x = regular price.

1 - .4 = .6 = 60%

The sale price is equal to the full price (aka x) minus the discounted price (40% of x = 40/100 times x = .4x)

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3 years ago

The maximum number of students in a classroom

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10 students can join the class without exceeding the maximum

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2 years ago

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From a piece of tin in the shape of a square 6 inches on a side, the largest possible circle is cut out. What is the ratio of th

wel

Answer:

$\sf \dfrac{1}{4} \pi \quad or \quad \dfrac{7}{9}$

Step-by-step explanation:

The width of a square is its side length.

The width of a circle is its diameter.

Therefore, the largest possible circle that can be cut out from a square is a circle whose diameter is equal in length to the side length of the square.

Formulas

$\sf \textsf{Area of a square}=s^2 \quad \textsf{(where s is the side length)}$

$\sf \textsf{Area of a circle}=\pi r^2 \quad \textsf{(where r is the radius)}$

$\sf \textsf{Radius of a circle}=\dfrac{1}{2}d \quad \textsf{(where d is the diameter)}$

If the diameter is equal to the side length of the square, then:
$\implies \sf r=\dfrac{1}{2}s$

Therefore:

$\begin{aligned}\implies \sf Area\:of\:circle & = \sf \pi \left(\dfrac{s}{2}\right)^2\\& = \sf \pi \left(\dfrac{s^2}{4}\right)\\& = \sf \dfrac{1}{4}\pi s^2 \end{aligned}$