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Naya [18.7K]
3 years ago
11

In a comluter game a bird flies 1,281 feet in the air, while a fish swims 282 feet below sea level what is the difference

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0
1281 +282 = 1563
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Find the area of a regular octagon with an apothem 9.7 meters long and a side length of 8 meters.
rosijanka [135]
The area of a regular octagon is:
A = a * P / 2,  where a is an apothem and P is a perimeter.
P = 8 * 8 m = 64 m
A = 9.7 m * 64 m / 2
A = 620.8 / 2 m²
A = 310.4 m²
Answer:
The area of a regular octagon is 310.4 m².
4 0
3 years ago
The number n of people using the elevator in an office building every hour is given by n = t2 − 10t + 40. In this equation, t is
Morgarella [4.7K]

Answer:

The number of persons using the elevator at any hour is never going to be less that 15.

Step-by-step explanation:

To solves this you have to suppose that there are at least 15 persons on the elevator, and the equation is converted into an inequation:  

t^2-10t+40

Now you transform the inequation back to an equation to solve it:

t^2-10t+25=0

You need to know if there is any negative solution for the equation, to do this you can use the discriminant for a quadratic equation:

D=b^2-4ac

In this case, you have a=1, b=-10, c=25

D= (-10)^2-4(1)(25)\\D=0

Since the discriminant is 0 and a<0 the equation always is going to be positive. Therefore, the number of persons using the elevator at any hour is never going to be less than 15.

6 0
4 years ago
I need help with this
torisob [31]

Answer:

C(4, 6) => dilated by a factor of 1/3 => C'( 3x2/3, 6x2/3) = C'(2, 4)

3 0
3 years ago
The volume of a rectangular prism is (x^3-3x^2+5x-3)/(x^3-2)
Trava [24]
<span>The volume of a rectangular prism = its base area * height

substitute:
</span>
x3 – 3x2 + 5x – 3 =<span> (x2 – 2) * h

h=</span> (x3 – 3x2 + 5x – 3)/<span>(x2 – 2)

so you can use the long division</span>
3 0
4 years ago
The sum of a number and 7 is the same as double the number increased by 3
koban [17]
So, let’s represent the number as n:
n+7=2n+3
Subtract both sides by 3:
n+4=2n
Now by n:
2n=4
Divide:
n=2
The number is 2
4 0
3 years ago
Read 2 more answers
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