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Maslowich
3 years ago
7

Item 7

Mathematics
1 answer:
topjm [15]3 years ago
8 0

Answer:8,5 recirpoal is 5,8

Step-by-step explanation:

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Determine whether the vectors u and v are parallel, orthogonal, or neither.
kodGreya [7K]
<h3>Answer:  orthogonal </h3>

===========================================================

Explanation:

For any two vectors defined as follows

u = <a,b>

v = <c,d>

the dot product is computed by

u dot v = a*c + b*d

If the dot product of the vectors is 0, then the vectors are orthogonal. Meaning they are perpendicular to one another.

-------------------

Let's find the dot product of these two given vectors

u = < 2, -4 >

v = < 6, 3 >

u dot v = 2*6 + (-4)*3

u dot v = 12 - 12

u dot v = 0

Therefore, these two vectors form a right angle and are <u>orthogonal</u>

-------------------

Extra info:

If we can show that u = <a, b> and v = <ka, kb> for some real number k, then we have shown that vectors u and v are parallel.

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3 years ago
In the figure below, DF is a straight line. What is the degree measure of &lt;FEG?​
Alexandra [31]

Answer:

c. 56 degrees

Step-by-step explanation:

angle FEG and angle DEG add up to 180.

2x-6+3x-31=180

x=31

2(31)-6=56

7 0
3 years ago
Von makes a design with four lines. At least two of them are
stepladder [879]

Answer:

yes it help me when I'm doing my work

4 0
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The Hernandez family has a pool that holds 10,450 gallons of water. They are draining it in order to fix a crack in the wall. Th
ryzh [129]

Answer:

f(x) = 2x + 5

the bucket starts with 5 gallons of water and is being filled at a rate of 2 gallons per minute

Step-by-step explanation:

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m is the slope and b is the y-intercept.

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