Answer:
Algebra archive containing a full list of algebra questions and answers from October ... Given the sample space, S = {2,5,7,10), determine the answers to the ... +5x2-4x-20 x2+3x Points out of 8.75 Select one: P Flag question a. ... + 5 t(x)=x -2 Write the expressions for (s•t)(x) and (s + t)(x) and evaluate (s - t)(-1). (sºt)(x) = 0 (s.
Step-by-step explanation:
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Answer:
SA = 202
Step-by-step explanation:
Surface area = Sum of all 6 areas of each side of the cuboid
SA = 2 (4·5 + 5·9 +9·4), because there are 2 of each kind of sides
SA = 2 (20+ 45 + 36)
SA = 2·101
SA = 202
15. [4] insufficient information. only given SA
16. There are 3 right triangles, 3 Pythagorean theorem equations
x²+b²= 16²
12²+a² = x²
a²+4² = b²
combine equations using substitution to get in terms of only x
substitute b² for (a² +x²) in first equation
x²+a²+4²=16²
substitute a² for (x² - 12²)
x²+x²-12²+4² = 16²
solve for x
2x² - 144 + 16 = 256
2x² = 256 + 144 - 16
2x² = 384
x² = 384/2
x² = 192
x = 13.85
rounded to nearest tenth, x = 13.9
Answer:
=
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
9v = 9(2i + 9j) = 18i + 81j
|9v | =
=
= 9