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3 years ago

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Sea World has 9 aquariums with small fish in them and the number of fish in each tank are shown below:45,10,48,19,36,25,63,14,37

.What is the range of the number of fish

1 answer:

zepelin [54]3 years ago

5 0

Answer:

33

Step-by-step explanation:

Add all the numbers

Divide by 9

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Find the similarity ratio and the ratio of perimeters for two regular octagons with areas of 18in2 and 50in2

sweet-ann [11.9K]

Answer:

3. 3 : 5; 3: 5

Step-by-step explanation:

First, let's find the leght of the sides of each octagon.

$A= 18in^{2}$

The area of an octagon is defined by

$A=2(1+\sqrt{2})l^{2}$

Replacing the area

$18=2(1+\sqrt{2})l^{2}\\\frac{18}{2(1+\sqrt{2})} =l^{2}\\l=\sqrt{\frac{18}{3.4} } \approx 2.3 \ in$

Therefore, the side of the first octagon is 1.6 inches long.

Its perimeter is: $P=8(2.3in)=18.4in$

$A=50 in^{2}$

$50=2(1+\sqrt{2})l^{2}\\\frac{50}{2(1+\sqrt{2})} =l^{2}\\l=\sqrt{\frac{50}{3.4} } \approx 3.8 \ in$

Therefore, the side of the second octagon is 3.8 inches long.

Its perimeter is $P=8(3.8in)=30.4in$ .

Now, let's divide to find each ratio:

$\frac{3.8}{2.3} \approx 1.65$ (the ratio between sides).

$\frac{30.4}{18.4} \approx 1.65$ (the ratio between perimeters).

Therefore, the closest ratio is 3. 3 : 5; 3: 5

8 0

3 years ago

Read 2 more answers

there are 64 fifth graders at parks school. 3/8 of them bring their own lunch to school. how many of them bring their own lunch?

Anarel [89]

24 because 1/8 of 64 is 8 then you multiply that by 3

8 0

3 years ago

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What is the order of the angles from smallest to large

stepladder [879]

It would probably be BAC

4 0

3 years ago

Carlos rode the elevator up 4 floors, then down 2 floors. He then rode down 5 more floors and got off on the first floor. Where

gulaghasi [49]

Answer:

fourth floor

Step-by-step explanation:

8 0

3 years ago

Consider z1 = 4 – 4 startroot 3 endrooti and z2 = –16i. What is z1 – z2? 4 – 12startroot 3 endroot i 4 12startroot 3 endroot i 4

dalvyx [7]

The answer is: $z_1-z_2=4-4(\sqrt{3i} -4i)$

The correct option is: (D)

<h3>What are Complex numbers?</h3>

A complex number is the sum of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z. Here both a and b are real numbers. The value 'a' is called the real part which is denoted by Re(z), and 'b' is called the imaginary part Im(z).

Since we have given : $z_1=4-4\sqrt{3i}$ and $z_2 = -16i$

The difference of z1 - z2 would be:

So,

$z_1-z_2=4-4\sqrt{3i} - (-16i)$

$z_1-z_2=4-4\sqrt{3i}+16i$

$z_1-z_2=4-4(\sqrt{3i} -4i)$

Hence, $z_1-z_2=4-4(\sqrt{3i} -4i)$

Learn more about Complex Number here:

brainly.com/question/14028757

#SPJ1

5 0

2 years ago