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2 years ago

Edgar Elementary

Mathematics

1 answer:

kirza4 [7]2 years ago

4 0

Answer:3333

Step-by-step explanation:

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What is the area of this figure? Enter your answer in the box.

ale4655 [162]

Answer:

42 units squared

Step-by-step explanation:

break it up into smaller shapes. if you split the big shape at y = 2 and at y=-2, you'll get two triangles and one rectangle.

so the area of the rectangle = l x w

= 4 x 7

= 28

the area of the triangle is ( l x w )/2

= (7 x 2)/2

= 7

the other triangle is the same too

so the area of that is also 7.

now add all areas,

7+7+28 = 42

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Answer:

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Is y=9x proportinal?

igor_vitrenko [27]

Answer:

yeah it is

y is directly proportional to x

proportionality constant is 9

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Answer:

the mean is 5

Step-by-step explanation:

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3 years ago

Find the exponential function that satisfies the given conditions:

swat32

Answer-

The exponential function that satisfies the given conditions is $f(t)=67(0.9953)^t$

Solution-

This can be represented as exponential decreasing function,

$f(t)=a(1 - r)^t$

Where,

a = starting amount = 67
r = rate = 0.47% = 0.0047
t = week

Putting the values,

$\Rightarrow f(t)=67(1 - 0.0047)^t$

$\Rightarrow f(t)=67(0.9953)^t$

Therefore, the exponential function that satisfies the given conditions is

$f(t)=67(0.9953)^t$

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