A student is asked to calculate the value of 372 − 292 using the identity x2 − y2 = (x − y)(x + y). The student's steps are shown below. Step 1: 372 − 292 = (a − b)(a + b)
Step 2: = (c)(d)
Step 3: = (8)(60) + 8(6)
Step 4: = 480 + 48
Step 5: = 528

What are the values of a, b, c, and d?

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5

i got 142 as my answer

step-by-step explanation:

the answer to the expression is 83

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.