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Vedmedyk [2.9K]
3 years ago
5

Equation- s=db-6, solve for d

Mathematics
2 answers:
ad-work [718]3 years ago
5 0
The answer is solved in the image below

Liono4ka [1.6K]3 years ago
4 0

Answer:

d \:  =  \frac{s + 6}{b}

Step-by-step explanation:

s = db - 6

Isolate d

s + 6 = db

.

Divide both sides of the equation by b

\frac{s + 6}{b}  =  \frac{db}{b}

Simplify

\frac{s + 6}{b}  = d \\ d =  \frac{s + 6}{b}

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The longest side of the triangle section is 4 feet shorter than twice the shortest side. The third side is 3 feet longer than th
Katarina [22]
<h3>Answers:</h3><h3>The shortest side is 15 ft</h3><h3>The middle side is 18 ft</h3><h3>The longest side is 26 ft</h3>

===========================================

Define the three sides to be a,b,c such that a < b < c

So c is the longest side, and 'a' is the shortest with b in the middle.

"longest side is 4 ft shorter than twice the shortest side" means that c = 2a-4

"third side is 3 ft longer than the shortest side" so b = a+3

Both b and c are in terms of 'a', allowing us to do substitutions like so

a+b+c = perimeter

a+b+c = 59

a+(a+3)+c = 59 .... first substitution, plug in b = a+3

a+(a+3)+(2a-4) = 59 ... second substitution, plug in c = 2a-4

4a-1 = 59 .... combine like terms

4a = 59+1 ... add 1 to both sides

4a = 60

a = 60/4 ... divide both sides by 4

a = 15

The shortest side is 15 ft

b = a+3 = 15+3 = 18

The middle side is 18 ft

c = 2a-4 = 2*15-4 = 26

The longest side is 26 ft

---------------------

Check:

The three sides should add up to a perimeter of 59 ft

a+b+c = 15+18+26 = 59

so the answer is confirmed

6 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
13. Find the vertex of f(x)=x2 -6x +8 .
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Answer:

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Step-by-step explanation:

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Comparing this to the generic vertex form ...

  f(x) = (x -h)^2 +k . . . . . . . vertex at (h, k)

we see that h=3 and k=-1.

The vertex is (h, k) = (3, -1).

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Step-by-step explanation:

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