38- I'm pretty sure it's greater
39= -10
a) (x + 3)( X + 5 )
x( x + 3 )+ 5 (x + 3 )
x square + 3 X + 5 x + 15
X square + 8 x + 15
b)( 3 x minus 2)( X + 4)
x (3 x - 2 )+ 4(3 X - 2 )
3 x square - 2 X + 12 x -8
3 X square + 10 x - 8
c)x(x - 7)
x square - 7 x
If the radius of the ball is 1 meter. Then the diameter of the ball will be 2 meters.
<h3>What is Geometry?</h3>
It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
The volume of a water walking ball (in cubic meters) is given below.

Then the diameter of the sphere will be
We know the volume of the sphere is given as

where r is the radius of the ball.
Then the radius of the ball will be

Then the diameter of the ball will be
d = 2r
d = 2 × 1
d = 2 m
More about the geometry link is given below.
brainly.com/question/7558603
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The investment growth is an illustration of an exponential function.
It will take 78.3 years for the investment to reach £29437.2
The given parameters are:
- Initial worth: 645.3
- Rate: 0.05
<h3>
Exponential functions</h3>
An exponential function is represented as:

Where:
- a represents the initial value
- r represents the rate.
<h3>
The number of years</h3>
So, we have:

When the investment becomes 29437.2, the equation becomes

Divide both sides by 645.3

Take the logarithm of both sides

This gives

Make t the subject


Hence, it will take 78.3 years for the investment to reach £29437.2
Read more about exponential functions at:
brainly.com/question/11464095
Answer:
Step-by-step explanation:
<u>Given</u>
<u>Solving for m</u>
- i = 1/2mr^2 ⇒ Multiply both sides by 2
- 2i=mr^2 ⇒ Divide both sides by r^2
- m=2i/r^2