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Viefleur [7K]
3 years ago
14

Given: ΔABC; a= 10; b = 4, and c = 11. Find the measurement of ∠B to the nearest tenth of a degree.

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0
Use the Cosine Rule to find this

cos <B  = [b^2 - a^2 - c^2] /  -2ac 

               =  [ 4^2 - 10^2 - 11^2] / -2*10*11

               =   0.93182

so m < B  =   21.3 degrees to nearest tenth.  Answer
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To avoid collisions with invasive species of aliens, new imperial regulations allow only positive integer space jumps parallel t
Sunny_sXe [5.5K]

Answer:24,942,060

Step-by-step explanation:

(10,10,4) - (3,2,0) = 7,8,4

7+8+4=19

19!/(7!*8!*4!)= 24'942'060

7 0
2 years ago
I REALLY NEED HELP, ILL MEDAL!!!!
lara31 [8.8K]
Well, first of all, the first statement  (ABC = ADC) looks like it just says
that the two halves of the little square ... each side of the diagonal ...
are congruent.  That's no big deal, and it's no help in answering the
question.

The effect of the dilation is that all the DIMENSIONS of the square
are doubled ... each side of the square becomes twice as long.

Then, when you multiply (length x width) to get the area, you'd have

           Area = (2 x original length) x (2 x original width)

and that's
the same as      (2 x 2) x (original length x original width)

                        =     (4)  x  (original area) .


Here's an easy, useful factoid to memorize:

-- Dilate a line (1 dimension) by 'x' times . . . multiply the length by  x¹

-- Dilate a shape (2 dimensions) by 'x' . . . multiply area by  x²

-- Dilate a solid (3 dimensions) by 'x' . . . multiply volume by  x³

And that's all the dimensions we have in our world.
_______________________________

Oh, BTW . . .

-- Dilate a point (0 dimensions) by 'x' . . . multiply it by  x⁰  (1)

5 0
2 years ago
5x+14&lt;4 or -2(x-8)&lt;-2
Kitty [74]

Answer:

Step-by-step explanation:

5x+14<4 or -2(x-8)<-2

    -14 -14      -2x+16<-2

5x<-10                -16  -16

÷5  ÷5           -2x<-18

x<-2              ÷-2   ÷-2

                     x>9   (sign changes because you divide by a negative number)

x<-2 or x>9

7 0
2 years ago
Find the indicated term of the given arithmetic sequence. a1 = 115, d = 8, n = 14
olya-2409 [2.1K]
I took the same test and I put the answer D. 1487 and I got it wrong. The correct answer was 
A.3
3 0
2 years ago
Pls help with right answers
Katyanochek1 [597]

Answer:

Ava gives each cat 2 treats. 3 treats are left.

Step-by-step explanation:

15/6 = 2.5

If she wants to split them evenly then she can only give each cat 2 treats. so 2 x 6 = 12 which means that there are 3 treats left

5 0
2 years ago
Read 2 more answers
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