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Hoochie [10]
3 years ago
13

I need math help ASAP

Mathematics
1 answer:
iVinArrow [24]3 years ago
7 0

Shape 1:

Perimeter of 1/2 circle

= 1/2 (3.14)(8)

= 12.56 cm

Shape 2:

Perimeter of square

= 4 x 16

= 64 cm

Total perimeter:

=  12.56 cm + 64 cm

= 76.56 cm

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Isabelle is using a square piece of cardboard to make a box without a lid. She cuts 2-inch squares from each corner and folds up
katrin2010 [14]

<em>The dimensions of the cardboard to make a box without a lid is 11 inches by 11 inches.</em>

<h2>Explanation:</h2>

In this problem, we have that Isabelle is using a square piece of cardboard to make a box without a lid. She cuts 2-inch squares from each corner and folds up the edges. The figure below shows this statement. The finished box has a volume (V) of 98 cubic inches, in other words:

V=98in^3

When folding up, we get the box without lip shown in the second figure. So the volume would be:

V=2xx \\ \\ V=2x^2 \\ \\ But: \\ \\ V=98 \\ \\ Then: \\ \\ 2x^2=98 \\ \\ x^2=49 \\ \\ x=\sqrt{49} \\ \\ x=7in

Since te cardboard is square, then the side (s) is given by:

s=2+x+2 \\ \\ s=2+7+2 \\ \\ s=11in

Therefore:

<em>The dimensions of the cardboard to make a box without a lid is 11 inches by 11 inches.</em>

<h2>Learn more:</h2>

Volume of a box: brainly.com/question/10501080

#LearnWithBrainly

8 0
3 years ago
Read 2 more answers
Your friend’s heart beats 18 times in 15 seconds when at rest. While running, your friend’s heart beats 25 times in 10 seconds.
Aleks [24]
72 times at rest and 250 while running.
5 0
3 years ago
Wendy, a 32 year old female, bought a $130,000, 10-year life insurance policy. what is wendys annual premium? Use the table
steposvetlana [31]
It would be A, because her annual premium rate is $3.25 for every $1,000. So 3.25x130=$422.50
4 0
3 years ago
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The tree diagram shows the possible win/loss paths for a basketball team playing in a tournament. Harris High School loses 1 gam
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This could happen in 3 ways.
6 0
3 years ago
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A ball is hurled in the air such that its horizontal (x) and vertical (y) shifts are given by the functions x(t) = 20t and y(t)
Viefleur [7K]

x(t) = 20t

y(t) = 40t - 5t^2

Since we are only interested in comparing the two at time t = 5 seconds, we plug in 5 everywhere we see the variable t and then compare x and y

x(5) = 20(5) becomes x(5) = 100

y(5) = 40(5) - 5(5)^2 becomes y(5) = 200 - 125 and then y(5) = 75

The ratio of y to x can be expressed as: y/x, so we can say the ratio is equal to 75/100 or 0.75

Answer: 0.75

7 0
3 years ago
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