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Anarel [89]
3 years ago
8

Does 12-(4x2)=(12-4)x(12-2)

Mathematics
2 answers:
Fed [463]3 years ago
4 0
No. 12-(4×2)---> 4×2=8-->12-8=4
(12-4)×(12-2)--->12-4=8-->12-2=10
8×10=80---->4=80
4 does not equal 80, so no, it's not true
Darina [25.2K]3 years ago
3 0
No. Solve each of the problems and see if they match. Do PEMDAS order of operations
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A ball is thrown upward and outward from a height of 77 feet. the height of the​ ball, f(x), in​ feet, can be modeled by f left
Oksi-84 [34.3K]
From the given function modeling the height of the ball:
f(x)=-0.2x^2+1.4x+7
A] The maximum height of the ball will be given by:
At max height f'(x)=0
from f(x), 
f'(x)=-0.4x+1.4
solving for x we get:
-0.4x=-1.4
x=3.5ft
thus the maximum height would be:
f(3.5)=-0.2(3.5)^2+1.4(3.5)+7
f(3.5)=9.45 ft

b]
How far from where the ball was thrown did this occur:
from (a), we see that at maximum height f'(x)=0
f'(x)=-0.4x+1.4
solving for x we get:
-0.4x=-1.4
x=3.5ft
This implies that it occurred 3.5 ft from where the ball was thrown.


 c] How far does the ball travel horizontally?
f(x)=-0.2x^2+1.4x+7
evaluationg the expression when f(x)=0 we get:
0=-0.2x^2+1.4x+7
Using quadratic equation formula:
x=-3.37386 or x=10.3739
We leave out the negative and take the positive answer. Hence the answer 10.3739 ft horizontally.
6 0
4 years ago
Could anyone help me with this?<br><br>​
Alex Ar [27]
Https://coolconversion.com/geometry/circle/area/What-is-the-area-of-a-circle-with-_radius-_1_cm_%3F

This website might help
6 0
3 years ago
(9x^4+3x^3y-5x^2y^2+xy^3)/(3x^3+2x^2yxy^2) <br> Divide the following polynomial
serg [7]
See, please, the offered decision, note, that 2x^2yxy^2 is as <span>2x^2y+xy^2.</span>

4 0
4 years ago
Y = -x + 5 <br> Y = x + 1
Anton [14]

Answer:

x = 2 , y = 3

Step-by-step explanation:

this is equation form if this what you were talking about :3

6 0
3 years ago
Whats 2 plus 2?////////////////////////////////////////////////
sergiy2304 [10]

Answer:

4

Step-by-step explanation:

its like you have 2 fishes and you get two more

6 0
3 years ago
Read 2 more answers
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