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Kobotan [32]
3 years ago
14

Vector u has its initial point at(14 -6) and its terminal point at(4,7)

Mathematics
1 answer:
mars1129 [50]3 years ago
7 0

Answer:

Vector form u = <10, -13>

Step-by-step explanation:

You want to know what vector u = ?

u = < 14 - 4 ,  -6 - 7>  = <10, -13>

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3.4 mi/h converted into ft/sec<br><br> Please someone help me out on this question!
Vlad [161]

To convert mi/h to ft/sec, multiply it to 1.466.

So 3.4 mi/h x 1.466 = 4.986 ft/sec

5 0
3 years ago
Cite algumas situações do seu dia a dia em que são utilizados número negativos
Flauer [41]
You would use them when you may go shopping for example you would do 
i need -1 butter and -5 bread 
you might need to translate this on google
5 0
3 years ago
Use the distributive property to factor out y 5y - 3y + 12 the new expression becomes​
Brut [27]

Answer:

2y+12

Step-by-step explanation:

7 0
3 years ago
Determine the open intervals on which the graph of f(x) = x - 4cos x is concave upward or concave downward
bazaltina [42]

The graph of the function f(x) is

  • concave upward, when f''(x)>0;
  • concave downward, when f''(x)

Find f''(x):

1.

f'(x)=(x-4\cos x)'=1+4\sin x;

2.

f''(x)=4\cos x.

Now:

1. when 4\cos x>0, the graph of the function is concave upward and this is for

x\in \left(-\dfrac{\pi}{2}+2\pi k,\dfrac{\pi}{2}+2\pi k\right), \text{ where } k\in Z.

2.  when 4\cos x the graph of the function is concave downward and this is for

x\in \left(\dfrac{\pi}{2}+2\pi k,\dfrac{3\pi}{2}+2\pi k\right), \text{ where } k\in Z.

6 0
3 years ago
What is the equation in slope-intercept form of the linear function represented by the table?
umka2103 [35]

Answer:

y = -x + 9

Step-by-step explanation:

You are given (-5,14), (-2,11), (1,8), and (4,5).  Your first objective is to find the slope.

Slope is delta y divided by delta x - the amount of height the graph gains divided by the amount of horizontal length the graph gains.  Take any two points and plug it into this: \frac{y_{2}-y_{1} }{x_{2}-x_{1}}.

i.e. (-2,11) and (4,5): \frac{11-5}{-2-4} which is \frac{6}{-6}, or -1.  Thus, the slope is -1.

We now have y = -1(x) + b, or just y = -x + b.

Next, find the y-intercept.  Set the value of x to 0, as the y-intercept is found along the y-axis, which is at the horizontal center of the graph, 0.  We now know that the y-intercept is (0,y).  To find the y-value, plug one of the coordinate pairs of choice into x and y.

i.e. (-5,14): 14 = (-1)(-5) + b

14 = 5 + b

14 - 5 = 5 + b - 5

9 = b

So, the y-intercept is (0,9).

Finally, the equation is:

y = -x + 9

7 0
2 years ago
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