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dybincka [34]
1 year ago
10

Please help i need help solving this

Mathematics
1 answer:
Vaselesa [24]1 year ago
6 0

Answer:

1.D 2.C 3.A 4.B

Step-by-step explanation:

hope this helped

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(Refer to the attached image)​
DENIUS [597]
<h3>Answer:  9 meters</h3>

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

Work Shown:

  • side a = 8
  • side b = 5
  • angle C = 88 degrees

Applying the law of cosines

c^2 = a^2 + b^2 - 2*a*b*cos(C)

c^2 = 8^2 + 5^2 - 2*8*5*cos(88)

c^2 = 64 + 25 - 80*cos(88)

c^2 = 86.2080403

c = sqrt(86.2080403)

c = 9.2848285

c = 9

Technically he needs 10 meters of rope because of the extra 0.28 portion, but I'll stick with 9 meters since your teacher said to round to the nearest whole number.

5 0
1 year ago
If f(x)=2x+5, then what is f(3)?
FromTheMoon [43]

Answer:

\Large \boxed{f(3)=11}

Step-by-step explanation:

f(x)=2x+5

For f(3), the input for the function f(x) is 3.

Let x (input) = 3.

f(3)=2(3)+5 \\\\ f(3)=6+5 \\\\ f(3)=11

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