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horsena [70]
3 years ago
15

Determine whether the vectors u and v are parallel, orthogonal, or neither. u = (5,4) v = (-10,9)

Mathematics
2 answers:
dolphi86 [110]3 years ago
7 0

Answer:

A

Step-by-step explanation:

edge answer

12345 [234]3 years ago
6 0

Answer:

Neither

Step-by-step explanation:

5 x -10 = -50

4 x 9 = 36

-50 + 36 = -14 and therefore can not be orthogonal

sqrt(25+16)=sqrt(41)

sqrt(100+81)=sqrt(181)

sqrt(41) x sqrt(181) is not equal to -14 so therefore it is not parallel

So the answer is then neither

You might be interested in
Which two numbers add up to ___ and multiply to ___?
Assoli18 [71]
<span>1. multiply to -18 add to -17 = Multiplying -18 and 1 will give -18 as the result and then on adding -18 and + 1 the result comes to -17
</span><span>2. multiply to 36 add to -13 = Multiplying -9 and -4 will give -36 as the result and then on adding -9 and -4 the result comes to -13
</span><span>3. multiply to -24 add to -5<span>= </span></span><span>Multiplying -8 and +3 will give -24 as the result and then on adding -8 and +3 the result comes to -5
4. multiply to -18 add to 7= </span><span>Multiplying +9 and -2 will give -18 as the result and then on adding +9 and -2 the result comes to 7
5. multiply to -36 add to 9= </span><span><span>Multiplying +12 and -3 will give -36 as the result and then on adding +12 and -3 the result comes to 9
</span> 6. multiply to 24 add to 10= </span><span><span>Multiplying +6 and +4 will give 24 as the result and then on adding +6 and +4 the result comes to 10
</span> 7. multiply to 18 add to -9= </span><span><span><span>Multiplying -6 and -3 will give -18 as the result and then on adding -6 and -3 the result comes to -9
</span> 8. multiply to -36 add to -16</span>= </span><span>Multiplying -18 and +2 will give -36 as the result and then on adding -18 and +2 the result comes to -16</span>








3 0
3 years ago
Find x, the answer is 5 but how do I get it?
dolphi86 [110]

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6 0
3 years ago
Read 2 more answers
X,y,z and l are proportional quantites, prove that : y–x/x = l–z/z​
Vera_Pavlovna [14]

Answer:

y=24

Step-by-step explanation:

7 0
2 years ago
?????????????????????????????????????????????????????????????????/
Juli2301 [7.4K]
I am 90% sure it is 10
6 0
3 years ago
If (2i/2+i)-(3i/3+i)=a+bi, then b=
max2010maxim [7]

Answer:

b = -1/10.

Step-by-step explanation:

(2i/2+i)-(3i/3+i)

= 2i(3 + i) - 3i(2 + i) / (2 + i)(3 + i)

= 6i + 2i^2 - 6i - 3i^2 / (2 + i)(3 + i)

=  (-2 + 3) / (6 + 5i - 1)

= 1 / (5 + 5i)

Now we multiply top and bottom by 5 - 5i :

= 5 - 5i / (5 + 5i)(5 - 5i)

=  5 - 5i / 25 -25i^2

= 5 - 5i / 50

= 1/10 - 1/10i

6 0
2 years ago
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