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kirill115 [55]
3 years ago
15

A single tree produces about 2.6 × 10² lb of oxygen each year. The Amazon rainforest has about 3.9×

t/?f=%2010%5E%7B11%7D%20" id="TexFormula1" title=" 10^{11} " alt=" 10^{11} " align="absmiddle" class="latex-formula"> trees.
About how many pounds of oxygen are produced in the rainforest each day ?

Enter your answer in the box.
2.8 × 10
lb
Mathematics
1 answer:
tatiyna3 years ago
4 0
Start by simplifying, 10^2 = 100, 100*2.6 = 260    so for the other side we
 
10^11= 100000000000,  100000000000 times 3.9 = <span>390000000000 so for the

final answer we multiply the two numbers stop get a 

final answer of  </span>260 times 390000000000 = <span>1.014e+14</span>
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A circle has a circumference of 50.24 units
aleksandrvk [35]

Answer:

what are you trying to ask? I hope these help:

Diameter: 16 units

Radius: 8 units

Area: 200.96 units

Step-by-step explanation:

Diameter: circumference ÷ π

Radius: diameter ÷ 2

Area: pi times radius²

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Which decimal is equivalent to<br> 4/20
Anastaziya [24]
The answer should be .20
6 0
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Suppose you are trying to find your longitude
Alex73 [517]

Answer: 5:15:23 pm

Step-by-step explanation:

There are different time zones in the world due to the Earth's rotation as this results in different parts of the Earth receiving sunlight at different times.

GMT is used as a basis to find the times of other zones.

In this instance, EDT time is -4 that of GMT.

This means that EDT is 4 hours behind GMT.

Time in GMT is therefore:

=  1:15:23 + 4 hours

= 5:15:23 pm

7 0
3 years ago
What is the value of each expression in simplest form?<br> 2 1/2 divided by 4 3/4
Tanya [424]

Answer:

Its something

Step-by-step explanation:

2 1/2 is uh pretty cool

7 0
2 years ago
Read 2 more answers
using the equation representing the height of the firework (h = -16t^2 + v↓0 + h↓0), algebraically determine the extreme value o
Hitman42 [59]

Answer:

y = (-1/15)(x - 3)2 + 15

Step-by-step explanation:

The general equation of a parabola is

y = a(x - h)2 + k

If the halfway line if the origin, i.e. (x, y) = (0, 0), then the ball is kicked at (-12, 0) and it lands at (18, 0). By symmetry, the ball reaches its greatest height halfway between the starting and ending x values, or at x = 3. So, we know three points on this parabola: (-12, 0), (18, 0) and (3, 15).

Let us plug the first point into the generalized equation:

y = (x - h)2 + k

0 = (-12 - h)2 + k

So, k = -(-h - 12)2

or

k = -(h + 12)2, since we can factor out -1 and it becomes squared.

We can also plug (18, 0) into the generalized equation, and get:

0 = (18 - h)2 + k

So, k = -(18 - h)2

Since we have two expressions both equal to k, we can set them equal to each other and eliminate k:

-(h + 12)2 = -(18 - h)2

We can cancel out the negative signs and square out the terms on each side of the last equation.

h2 + 24h + 144 = h2 - 36h + 324

We can cancel out h2 and then solve for h.

24h + 144 = -36h + 324

60h = 180

h = 3

Therefore, the generalized equation becomes

y = a(x - 3)2 + k

We know that if x = 3, y = 15 from out third point.

15 = a(3 - 3)2 + k

So, k = 15

Thus, the equation becomes

y = a(x - 3)2 + 15

We can then pick one of the other points, plug in the corresponding x and y and then solve for a. I choose (18, 0).

0 = a(18 - 3)2 + 15

0 = 152a + 15

Divide this equation through by 15.

0 = 15a + 1

or

a = -1/15

Therefore, the generalized equation is

y = (-1/15)(x - 3)2 + 15

7 0
3 years ago
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