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andrey2020 [161]
3 years ago
8

The height of a pelican as it swoops down to catch a fish in the lake is modeled by this equation, where x represents the time,

In seconds, and y represents the height of the pelican, In feet.​
Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0

Answer:

Option A : The system has two solutions, and both are viable because they result in positive values of time.

Step-by-step explanation:

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Help me with both questions please please help!
Vinil7 [7]

Answer:

we need to know whats given above can you show us a picture of the table above?

Step-by-step explanation:

5 0
2 years ago
Car travels 100 m in 5 seconds. What is the speed the car?
weqwewe [10]
How you do this is using the formula speed = distance/time. So this is 100/5 which is 20 meters a second. Using the conversion factor (can google "20 meters per second is how many mile") 20 meters a second = 44.7 miles per hour.

In conclusion, the answer you're looking for is D. 44.7 miles per hour.
4 0
3 years ago
Read 2 more answers
What is the measure of an interior angle in a regular octagon?
Degger [83]

Answer:

135°

Step-by-step explanation:

(n-2) * 180 =

(8-2) * 180=

6*180= 1080

1080: 8 = 135

7 0
3 years ago
What 2 numbers add to get 2 and multiply to 4
rusak2 [61]
Factor 4
4=1 times 4
2 times 2
they don't add to 2
set up equation
x+y=2
xy=4

first equation, subtract x from both sides
y=2-x
subsitute for y
x(2-x)=4
distribute
2x-x^2=4
add x^2
2x=x^2+4
subtract 2x
0=x^2-2x+4
use quadratic formula which is
if you have ax^2+bx+c=0 then
x=\frac{ -b+/-\sqrt{b^{2}-4ac} }{2a} so

1x^2-2x+4=0
a=1
b=-2
c=4
x=\frac{ -(-2)+/-\sqrt{(-2)^{2}-4(1)(4)} }{2(1)}
x=\frac{ 2+/-\sqrt{4-16} }{2}
x=\frac{ 2+/-\sqrt{-12} }{2}
we have \sqrt{-12} and that doesn't give a real solution
therefor there are no real solutions
but if you want to solve fully
x=\frac{ 2+/-2\sqrt{-3} }{2}
i=\sqrt{-1}
x=\frac{ 2+/-2i\sqrt{3} }{2}
x=1+/-i\sqrt{3}
x=1-i\sqrt{3} or x=1+i\sqrt{3} (those are the 2 numbers)

 





6 0
3 years ago
The measure of each interior angle of a regular polygon is 157.5 ∘ . How many sides does the polygon have?
uranmaximum [27]

180(n-2)=157.5n

180N-360=157.5n

180N-157.5n=360

22.5N=360

N=360/22.5

N=16

4 0
3 years ago
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