Juan has a cellular phone that costs a base fee of $12.95 plus 25° per minute for

Mathematics

1 answer:

Aleks04 [339]3 years ago

3 0

Answer:

c. 20 mins

Step-by-step explanation:

For Tiffany: multiply 20 mins times .15 cents which equals 3 then add $14.95 which gives you $17.95

For Juan: multiply 20 mins times .25 cents which equals you 5 then add $12.95 which gives you $17.95

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Orthogonalizing vectors. Suppose that a and b are any n-vectors. Show that we can always find a scalar γ so that (a − γb) ⊥ b, a

jeka57 [31]

Answer:

$\\ \gamma= \frac{a\cdot b}{b\cdot b}$

Step-by-step explanation:

The question to be solved is the following :

Suppose that a and b are any n-vectors. Show that we can always find a scalar γ so that (a − γb) ⊥ b, and that γ is unique if $b \neq 0$ . Recall that given two vectors a,b a⊥ b if and only if $a\cdot b =0$ where $\cdot$ is the dot product defined in $\mathbb{R}^n$ . Suposse that $b\neq 0$ . We want to find γ such that $(a-\gamma b)\cdot b=0$ . Given that the dot product can be distributed and that it is linear, the following equation is obtained