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3 years ago

9

Alana bought 3/8pound of Swiss cheese and 1/4 pounds of American cheese.which pairs of fractions are equivalent to the amounts A

lana bought?

1 answer:

PSYCHO15rus [73]3 years ago

7 0

Is it any fraction? if so 6/16 and 2/8 are equivalent

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Two sides of a triangle are 8 m and 9 m in length and the angle between them is increasing at a rate of 0.06 rad/s. Find the rat

Lelechka [254]

<h2>Rate at which area is increasing is 1.08 m²/s.</h2>

Step-by-step explanation:

Area of triangle is with side a and b and angle C between them is given by

A = 0.5 ab SinC

Here we need to find how area changes with a and b fixed and C is changing,

$\frac{dA}{dt}=\frac{d}{dt}\left (0.5 absinC\right )\\\\\frac{dA}{dt}=0.5ab\frac{d}{dt}\left (sinC\right )\\\\\frac{dA}{dt}=0.5abcosC\frac{dC}{dt}$

We have

a = 8 m

b = 9 m

$C=\frac{\pi}{3}rad\\\\\frac{dC}{dt}=0.06rad/s$

Substituting

$\frac{dA}{dt}=0.5\times 8\times 9\times cos\left ( \frac{\pi}{3}\right )\times 0.06\\\\\frac{dA}{dt}=1.08m^2/s$

Rate at which area is increasing is 1.08 m²/s.

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3 years ago

Select the improper fraction: 3/13 5/16 16/11 9/12

n200080 [17]

16/11
Hope this helps! :)

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If a parabola opens downward, the highest point on the graph is called the ____ of the parabola.

Setler [38]

Answer:

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Step-by-step explanation:

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2 years ago

Select all that apply.

lidiya [134]

Answer:

parallelogram, quadrilateral

Step-by-step explanation:

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it is a a parallelogram because it has two sets of parallel lines in those four sides.

in order for a quadrilateral to be a rhombus, all sides must be the same length. (if a rectangle is a rhombus, it is a square.)

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katen-ka-za [31]

Neagtive means go backwards or oposite
it takes away that many units

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