What is the length of side PR?
A. 8 cm
B. 11 cm
C. V105 cm
D. V176 cm
E. V274 cm

D. √176 cm

Step-by-step explanation:

Were given a right triangle.

PQ = 7 cm

QR = 15 cm

To find the length of side PR, apply Pythagorean theorem, which is c² = a² + b²

Where,

c = hypotenuse/longest side = 15 cm

a = PR

b = 7 cm

Thus:

15² = PR² + 7²

225 = PR² + 49

225 - 49 = PR²

176 = PR²

√176 = PR

PR = √176 cm

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

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step-by-step explanation: