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yarga [219]
3 years ago
12

Verify that the dominant term in the operation count (number of multiplications or number of additions) for solving a lower tria

ngular system of order n by forward substitution is n^2 /2.

Mathematics
1 answer:
pantera1 [17]3 years ago
5 0

Answer:

Attachment below

Step-by-step explanation:

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The sum of three numbers is 10. Two times the second number minus the first number is equal to 12.
eimsori [14]

<u>Answer:</u>

-10,1,19

<u>Step-by-step explanation:</u>

<u></u>

x+y+z = 10 (Equation 1)

2y-x= 12  (Equation 2)

x-y+2z = 7 (Equation 3)

(Equation 2): -x = -2y+12

                       x = 2y-12 (Equation 4)

(Equation 1) - (Equation 3): 2y-z = 3

                                              -z = -2y+3

                                               z = 2y-3 (Equation 5)

Substitute (4) and (5) into (1)

x+y+z = 10

(2y-12)+y+(2y-3) = 10

5y-15 = 10

5y = 5

y=1

Substitute y=1 into (2)

2y-x= 12

2(1)-x= 12

2-x= 12

-x= 12-2

-x= 10

x= -10

Substitute y=1 and x=-10 into (1)

x+y+z = 10

-10+1+z = 10

z-9 = 10

z = 10+9

z = 19

Order: x = -10, y = 1, and z = 19

8 0
3 years ago
Read 2 more answers
47/7 as a mixed number in siplest form
puteri [66]
For this fraction, you would have to see how many times 7 goes into 47. So, 6 times as 7 times 6 is 42. Subtract 42 from 47, and this would be your remainder:

6\frac{5}{7} 
7 0
3 years ago
Read 2 more answers
PLEASE HELP PLEASE HELP
Nataly_w [17]

Answer:

D

Step-by-step explanation:

Sum the three angle of triangle = 180

x + 53 + 60 = 180

x + 113 = 180

x = 180 - 113

x = 67

5 0
3 years ago
Read 2 more answers
חן
N76 [4]

Answer:

Step-by-step explanation:

This is a fascinating question. It turns out to be true because of the relationship between a 30 degree angle and a 60 degree angle

The answer is that the product of sin30*sin60 = cos(30)*cos(60). This happens because sin(60) = cos(90-60) = cos(30)

Other angles will do the same thing sin36 * sin54 = cos(54)*cos(36)

8 0
2 years ago
A plank is 2m long and30cm wide has volume of 0.018m. what is its thickness
matrenka [14]
I think the thickness of the plank is 0.03m
6 0
3 years ago
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