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kolbaska11 [484]
4 years ago
14

Find dy/du, du/dx, and dy/dx y= u^2 , u=4x+7

Mathematics
2 answers:
Aleks [24]4 years ago
4 0
<span>dy/dx =2u
du/dx==4
 
and
dy/dx= (dy/du)(du/dx)
         =2u(4)
         = 8u
  </span>
mash [69]4 years ago
3 0
Y=u²                    (du/dx[u^n]=n(u^(n-1))u`)
dy/du=2u(u´)=2u

u=4x+7
du/dx=4

dy/dx=(dy/du)(du/dx)=2u(4)=2(4x+7)(4)=8(4x+7)

Answer:
dy/du=2u
du/dx=4
dy/dx=8(4x+7)
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In order for RECT to be a rectangle, what must the value of x be?
Readme [11.4K]

Answer:

x = 21

Step-by-step explanation:

If RECT is a rectangle, each of its interior angles are right angles, 90°. Since ∠RTC is split into two angles, the sum of the two angles must be 90°. (Angles that add to 90° are called complementary angles).

∠RTC = ∠RTE + ∠ETC     Formula for complementary angles

90 = 2x + 6 + 42                Substitute the angles

90 = 2x + 48               Combined like terms to simplify

Now isolate "x" to solve

90 - 48 = 2x + 48 - 48         Subtract 48 from both sides

42 = 2x

42/2 = 2x/2       Divide both sides by 2

x = 21

Therefore x is 21.

6 0
4 years ago
Nick had 3 1/4 bottles of water for his wrestling practice when he finished he had 124 bottles of water left he said he used to
Ostrovityanka [42]
Nick had 3 1/4 bottles before, and he had 1 2/4 bottles left, so that means
3 1/4 - 1 2/4 =  1.75
1.75= 1 3/4.
So, I do not agree with nick.

Hope this helps!!!   :)
8 0
4 years ago
Make b the subject.
sp2606 [1]
First, square both sides. This will cancel out the radical.
a^2 = b \add 6
(a^2 = b + 6)
Then subtract 6 from both sides
b = a^2 - 6
6 0
3 years ago
JKL is a straight line.
NeTakaya
XMK x 356 is the correct answer
8 0
3 years ago
Read 2 more answers
SHOW YOUR WORK FOR CREDIT!
julia-pushkina [17]
9x1=9
9-9(3n)
9-27n
Can’t be solved
5 0
3 years ago
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