I NEED HELP WITH THIS!! PLEASE HELP ME I NEED IT ASAP 12 POINTS
1 answer:
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Answer:
$10.71
Step-by-step explanation:
y × 35 = 3.75 × 100
35y = 375
35y ÷ 35 = 375 ÷ 35
y = 10.7142857143
10.7142857143 round to 10.71
Answer:56.8 inches
Step-by-step explanation:
For perimeter we must find the lengths of the 2 diagonal sides of the triangle which are the same because it is isosceles.
the triangle is cut directly in half so both halves of the base are 17/2
17/2 = 8.5
solve through pythagoren theorum
altitude^2 + (half of base)^2 = (diagonal length)^2
18^2 + (8.5)^2 = (diagonal length)^2
324 + 72.25 = (diagonal length)^2
396.3 = (diagonal length)^2
= diagonal length
diagonal length = 19.9
diagonal length + diagonal length + base = perimeter
19.9 + 19.9 + 17 = perimeter
56.8 inches = perimeter