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Solnce55 [7]
3 years ago
15

PLEASE HELP!!!! ASAP ALMOST DUE

Mathematics
1 answer:
lions [1.4K]3 years ago
6 0

Answer:

idk im not that smart

Step-by-step explanation:

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The perimeter of a triangle is 480. The 2nd side is three times the 1st, and the 3rd side is 60 more than the 2nd. What is the l
svetlana [45]

Answer:

240

Step-by-step explanation:

So let the first side be x. So the next side is 3x and the last side is (3x +60) . Add all 3 sides and set equal to 480. So x + 3x + (3x +60)= 480. Now do the Algebra. So 7x + 60 = 480. Subtracting 60 we get 7x = 420 so x= 60. You are asked to ffg ind the length of the longest side so 3(60) + 60 = 240.

6 0
3 years ago
Mitchell received a stipend at the beginning of the semester to buy textbooks. During the semester, he spent $430.84 on textbook
tatyana61 [14]

Answer:

$566.88

Step-by-step explanation:

$430.84 + $136.04 = $566.88

7 0
1 year ago
Solve by factoring 2x^3-9x^2+10x=0 with full steps
Strike441 [17]
X(2x²-9x+10)=x(2x-5)(x-2)=0.
x=0 is one solution.
2x-5=0 and x-2=0 give us the solutions x=5/2 and x=2.
So x=0, 2 or 5/2.
7 0
3 years ago
Determine the value for c on {2, 5} that satisfies the Mean Value Theorem for f(x) = x^2 - 3 / x -1
yanalaym [24]

Answer:

B. 3.

Step-by-step explanation:

OK lets try again.

The slope of the secant = slope of the tangent at a certain point ( The Mean Value Theorem).

Slope of the secant = f(5) - f(2) / (5 - 2)

= [(25-3) / (5-1)  - (4-3) / (2-1)] / 3

=  (22/4 - 1) / 3

= 9/2 / 3

= 9/6

= 3/2.

The derivative at c = the slope of the tangent at c.

Finding the derivative:

f'(x) =  [2x(x - 1) - (x^2 - 3) ]/ (x - 1)^2    (where x = c).

= (x^2 - 2x + 3)/ (x - 1)^2 = the slope.

So equating the slopes:

(x^2 - 2x + 3) / (x - 1)^2 = 3/2

2x^2 - 4x + 6 = 3x^2 - 6x + 3

x^2 - 2x - 3 = 0

(x - 3)(x + 1) = 90

x = 3 , -1

x can't be -1 because we are working between the values 2 and 5 so

x = c = 3.

4 0
3 years ago
Can somebody plz help answer all these questions (only if u know how to do it) lol thanks!!!
vladimir1956 [14]

Answer:

  1. 13=6 14=5. 15=3 16=2 17=5 18= 7 19=2 20=9
7 0
3 years ago
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