Answer: 5
Step-by-step explanation:
A = xˆ(2−1)+yˆ(−1−(−1))+zˆ(0−(−3)) = xˆ +zˆ3,
|A| =
√
1+9 = 3.16,
aˆ =
A
|A|
=
xˆ +zˆ3
3.16
= xˆ 0.32+zˆ 0.95.
Yes as the even times the occurrence of negative signs makes the answer positive.
Answer:
C
Step-by-step explanation:
Answer:
Step-by-step explanation:
Put the numbers where x is in the equation and do the arithmetic. For purposes of evaluation, it is often convenient to write the equation in Horner form:
h(x) = (2.8x +.01)x^2 -1
Then ...
h(1) = (2.8 +.01)·1 -1 = 1.81
h(2) = (2.8·2 +.01)·2² -1 = 5.61·4 -1 = 21.44
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If you have several evaluations to do, it is convenient to use a calculator or spreadsheet to do them.