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velikii [3]
3 years ago
11

CD and CB are tangent to circle A. If CD = 5x – 13 and CB = 12, find x.​

Mathematics
1 answer:
hoa [83]3 years ago
6 0

Answer:

5

Step-by-step explanation:

because 5•5=25 and 25-13=12

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Find the absolute maximum and minimum values of the following function in the closed region bounded by the triangle with vertice
alukav5142 [94]

f(x,y)=2x^2-8x+y^2-8y+2

f_x(x,y)=4x-8=0\implies x=2

f_y(x,y)=2y-8=0\implies y=4

There is one critical point at (2, 4), but this point happens to fall on one of the boundaries of the region. We'll get to that point in a moment.

Along the boundary x=0, we have

f(0,y)=y^2-8y+2=(y-4)^2-14

which attains a maximum value of

f(0,4)=-14

Along y=44, we have

f(x,44)=2x^2-8x+1586=2(x-2)^2+1578

which attains a maximum of

f(2,44)=1578

Along y=2x, we have

f(x,2x)=6x^2-24x+2=6(x-2)^2-22

which attains a maximum of

f(2,4)=-22

So over the given region, the absolute maximum of f(x,y) is 1578 at (2, 44).

8 0
3 years ago
I don’t really get number 4
Oduvanchick [21]

Answer:

C

Step-by-step explanation:

Since the 7 swim teachers had about the same amount of students, you can divide 137 by 7, which comes out to about 20.

7 0
3 years ago
Read 2 more answers
PLZ FAST I DONT WANNA DIE
gavmur [86]

Answer:

x=15

Step-by-step explanation:

<GCB=180-5x

<EBA=9x

<DAC=8x

The sum of the three exterior angles equals 360.

(180-5x)+9x+8x=360

180-5x+9x+8x=360

-5x+9x+8x=360-180

12x=180

x=15

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3 years ago
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olga_2 [115]

Answer:

the claw game would give you a better %

Step-by-step explanation

when turned into a percent 1:49 becomes 2.040816326531% compared to the claw game that would give you a 30% chance of wining

6 0
3 years ago
The volume of a rectangular solid is given by the equation V = l ⋅ w ⋅ h . Find the volume of a box whose dimensions are l = 3 n
scoundrel [369]

3*2*6 is 36 yards cubed or 36 yards to the power of 3.

7 0
3 years ago
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