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3 years ago

HELP ME PLEEEEASEEE!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

enyata [817]3 years ago

8 0

Answer:

9. r < -6

10. n > 7

11. x < -1

12. d > -4

13. m > 4

14. x < 3

15. d < ^-15/7

16. m > -6

anygoal [31]3 years ago

3 0

9. b< -6
10. n>7
11. x< -1
12. d> 4
13. m> 4
14. x< 3
15. d< 20
16. m> 6

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Read 2 more answers

Math help 20 points

kherson [118]

$4)\\\\LM=KN\\\\\text{Therefore we have the equation}\\\\2x-6=x+3\qquad\text{add 6 to both sides}\\\\2x=x+9\qquad\text{subtract x from both sides}\\\\\boxed{x=9}\\\\LM=2x-6\Rightarrow LM=2(9)-6=18-6=12\\\\Answer:\ \boxed{LM=12}$

$5)\\\\m\angle F+m\angle U=180^o\\\\\text{Therefore we have the equation:}\\\\12x-6+11x+2=180\\\\23x-4=180\qquad\text{add 4 to both sides}\\\\23x=184\qquad\text{divide both sides by 23}\\\\\boxed{x=8}\\\\\angle V\cong\angle F\Rightarrow m\angle V=m\angle F\\\\m\angle V=12x-6\Rightarrow m\angle V=12(8)-6=96-6=90\\\\Answer:\ \boxed{m\angle V=90^o}$

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3 years ago

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Step-by-step explanation:

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3 years ago

Let R be the region bounded by the trapezoid with vertices (0, 0), (4, 4), (8, 4), and (12, 0). Let P be the partition of R dete

Norma-Jean [14]

Answer:

The value of the Riemann sum is 200.

Step-by-step explanation:

Let the region bounded by the trapezoid is shown as attached figure. Thus the different regions are formed for which the centroid points are calculated as follows

R-1 is the region formed as right angle triangle between points (x1,y1)=(0,0), (x2,y2)=(2,0) and (x3,y3)=(2,2). The centroid is given as

Centroid for this region is given as

C-R1 is (x1+x2+x3)/3,(y1+y2+y3)/3 which is (0+2+2)/3, (0+0+2)/3 given as ()

Similary the Centroids of other regions are given as

C-R2=(10/3,8/3), C-R3=(3,1), C-R4=(5,3), C-R5=(5,1), C-R6=(7,3), C-R7=(7,1),

C-R8=(26/3,8/3), C-R9=(9,1) and C-R10=(32/3,2/3)

Now using the following equation, the Riemann sum is given as

$R_{IO}=f(4/3,2/3)\times \Delta x +f(10/3,8/3)\times \Delta x + f(3,1)\times \Delta x + f(5,3)\times \Delta x + f(5,1)\times \Delta x+ f(7,3)\times \Delta x + f(7,1)\times \Delta x + f(26/3,8/3)\times \Delta x+f(9,1)\times \Delta x+f(32/3,2/3)\times \Delta x$ Here value of f is simple product of the points and the value of Δx is 2. Plugging in the values give the value of Riemann Sum as

$R_{IO}=(4/3*2/3)\times 2 +(10/3*8/3)\times 2 + (3*1)\times 2 + (5*3)\times 2+(5*1)\times 2+ (7*3)\times2 + (7*1)\times 2 + (26/3*8/3)\times2+(9*1)\times 2+(32/3*2/3)\times 2\\R_{IO}=200$

So the value of the Riemann sum is 200.

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3 years ago