Find the determinant of the matrix and determine if the matrix is invertible.
14; invertible
Mathematics
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Find the quadratic approximation of f at x = 0.f(x) = x
A. Q(x) = 81x2 B. Q(x) = 9x C. Q(x) = 1 + 9x D. Q(x) = 1 - 9x
Mathematics
Write the number in decimal form.2.2093 × 107
A. 154.651 B. 220,930,000 C. 2,209,300 D. 22,093,000
Mathematics
Find the perimeter.Joe wants to frame his garden with pine lumber. How feet of lumber will he need?
A. 380 ft B. 542 ft C. 37,154 ft D. 532 ft
Mathematics
Find the exact value of the product.cos 45° cos 15°
A. 
B. 
C. 
D. 
Mathematics