Find the exact length of the third side.
10
5

8.7 (nearest tenth)

Step-by-step explanation:

Applying pythagorean theorem, a² + b² = c²,

Where,

a = 5

b = the third side

c = hypotenuse = 10

Plug in the values

5² + b² = 10²

25 + b² = 100

Subtract 25 from each side

b² = 100 - 25

b² = 75

Take the square root of both sides

b = √75

b = 8.7 (nearest tenth)

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40