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Stels [109]
3 years ago
13

Answer asap please ? i need help

Mathematics
1 answer:
hammer [34]3 years ago
7 0

I'm not sure if this is right

Pythagorean Theorem

a^2 +b^2 =c^2

60^2 +b^2 = 78^2

3600+b^2 = 156

-3600            -3600

b^2 =-3444

b=58.685603i

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If a line perpendicular to 2y=x+5 that passes through (2,1) using the slope- intercept form
arlik [135]
Slope of  2y = x + 5:-
This is y = 0.5 x + 2.5  in slope intercept form so its slope = 0.5

Slope of the line perpendicular to it = -1 / 0.5 = -2

it passes through (2 , 1) so we have

y- 1 = -2(x - 2)
y = -2x + 4 + 1

The answer is y = -2x + 5

4 0
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Step-by-step explanation:

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77julia77 [94]

Answer:

36, 8.5

Step-by-step explanation:

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7 0
3 years ago
Caroline walks 1/2 inches second?
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4 0
3 years ago
The dimensions of a rectangle are such that its length is 3 in more than its width if the length were doubled and if the width w
emmasim [6.3K]

Length (L): w + 3            ⇒2(w + 3)

width (w): w                    ⇒ w - 1

Area (A) = L x w

         A = (w + 3)(w)

         A = w² + 3w

*******************************************

       A + 176 = 2(w + 3)(w - 1)

(w² + 3w) + 176 = 2(w + 3)(w - 1)

w² + 3w + 176 = 2w² + 4w - 6

        3w + 176 = w² + 4w - 6

                 176 = w² + w - 6          

                   0 = w² + w - 182

                   0 = (w - 13) (w + 14)

0 = w - 13            0 = w + 14

w = 13                  w = -14

Since width cannot be negative, disregard -14

w = 13

Length (L): w + 3   = (13) + 3   = 16

Answer: width = 13 in, length = 16 in

7 0
3 years ago
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