Answer:
AD= 15
AB=30
Step-by-step explanation:
We are given that the Point D bisect the line segment AB
Hence AD = DB
AD= 4x-1
BD=9x-21
Hence
4x-1=9x-21
adding 21 on both sides and subtracting 4x from both sides
4x-4x-1+21=9x-4x-21+21
-1+21=5x
5x=20
dividing both sides by x we get
x=4
Hence
AD = 4x-1
= 4(4)-1= 16-1=15
AD= 15
AB = 2 x AD
= 2 x 15
= 30
Answer: (7)
Step-by-step explanation:
Answer:
Slope: 2x
Y-intercept: -4
The target cost for Model J20 is $2000.
The required cost reduction is $30.
The total saving will be $30.3.
<h3>How to compute the cost?</h3>
The target cost will be:
= Sales price - (100% × Target cost)
= 400 - (100% × Y)
Y + Y = 400
2Y = 400
Y = 400/2 = 200
Target cost = $200
Therefore, the target cost is $200.
The required cost reduction will be:
= $230 - $200
= $30
The required cost reduction is $30.
The three engineering improvements together will be:
Direct labor reduction = 7.5
Additional inspection = 17
Injection molding = 5.8
Total savings = 30.3
The total savings is $30.3.
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I'm not sure what methods you've learned up to this point but one option is to apply separation of variables:

and then integrate from there,

exponentiate to isolate y,

Apply exponent rule,

rename this e^c as some new constant, perhaps A,

This A can only be positive, non-zero, but absorbing the plus/minus fixes that restriction,

Use your initial information to solve for this unknown value A,

solving for A, dividing by the exponential,

So we get a final result of

apply exponent rule again to get a better looking answer, and factor,

Lemme know if too confusing.