Answer:
Substitute the values give into the nth term of the arithmetic progression and solve this the steps are give above in the picture
11. A grocery store sells almonds for $2.30 per pound, tax included. A shopper buys 1.8 pounds of almonds from the store. She us
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PR is the longest side.
The triangle will be right if
PQ² + QR² = PR²
PQ² + QR² = (√10)² + (√40)² = 10 + 40 = 50
PR² = (√50)² = 50
50=50 so, ΔPQR is <span>a right triangle.</span>