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Marysya12 [62]
3 years ago
15

Write the point-slope form of the equation of the line with a slope of - 2 and an x-intercept of - 1. Include your work in your

final answer. Type your answer in the box provided or use the upload option to submit your solution.
Mathematics
2 answers:
labwork [276]3 years ago
5 0
Y-b=m(x-a) where (a,b) is a point and m is the slope 


y - 0 = -2(x+1)


Lana71 [14]3 years ago
4 0
Slope-intercept form:  y = -2x - 1.  Convert this to point-slope form:

Find a point on the graph.  It's (0, -1), since y = -2(0) - 1 = -1.

Then the point-slope form is

y-(-1) = -2(x - 0)
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segment BC is an are of a circle with radius 30.0 cm, and point P is at the center of curvature of the arc Segment DA is an arc
Elan Coil [88]

Answer:

The magnetic field is B = 3.87 *10^{-6} \ T

Direction is inward

 

Step-by-step explanation:

The diagram for this question is shown on the first uploaded image  

From the question we are told that

      The radius of  BC is  r_{BC} =  30 \ cm  =  0.30 \ m

      The radius of  DA is r _{DA} =  20 \ cm =  0.20 \ m

      The length of CD is  r_{CD} =  10 cm =  0.1 \ m

      The length of AB is  r_{AB} =  10 cm =  0.1 \ m

      The current is  I  =  11.4A

The magnetic field is mathematically represented as

      B =  B_{BC} +  B_{DA} + B_{CD} + B_{AB}

       B =  \frac{\mu_o I}{4 \pi } [ \frac{\theta_{DA}}{r_{DA}} + \frac{\theta_{BC}}{r_{BC}}+ \frac{\theta_{CD}}{r_{CD}}+\frac{\theta_{AB}}{r_{AB}}]

        Where

                 \theta_{BC} = \theta_{DA} =  \frac{2\pi}{3}

Where  \frac{2 \pi}{3}  =  120^o

                \theta_{CD} = \theta_{AB}  =  0^o

so

        B =  \frac{\mu_o I}{4 \pi } [ \frac{\frac{2\pi}{3} }{0.20} - \frac{\frac{2\pi}{3}}{0.30}}+ \frac{0}{0.10}+\frac{0}{0.10}]

         B = 3.87 *10^{-6} \ T

The direction is into the page

    This because the magnitude of the magnetic field due to arc BC whose direction is outward is less than that of DA whose direction is inward

This is because according to Fleming's Left Hand Rule  the direction of current is perpendicular to the direction of magnetic field so since  current in arc BC and DA are moving in opposite direction their magnetic field will also be moving in opposite direction

3 0
3 years ago
4. The length of a rectangle is sixteen inches less
-BARSIC- [3]

Answer:

68in

Step-by-step explanation:

l = 3w-16

l-3w = -16

l+w = 96

-4w = -112

w = 28 in

l = 96-28 = 68in

8 0
2 years ago
Find negative square root of 36. (4 points)<br> Group of answer choices
AleksAgata [21]

Answer:

-5.65685424949

Step-by-step explanation:

7 0
3 years ago
8 x what = 100 I need help ! !!!!!!
suter [353]
The answer would be 12.5
4 0
3 years ago
Read 2 more answers
We know 2 x 6 = 12.
Anon25 [30]

Answer:

A and C is true statements

7 0
2 years ago
Read 2 more answers
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