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iris [78.8K]
3 years ago
8

Which formula is as same as Pythagoras's formula........???

Mathematics
1 answer:
Marrrta [24]3 years ago
4 0
The distance formula is synonymous to Pythagorean's theorem.
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he coordinates below are the three vertices of a rectangle. Identify the fourth coordinate and the area of the rectangle. A coor
Paraphin [41]

Answer:

The answer is 7,2

Step-by-step explanation:

All of the numbers are different like possitive, negitive. and negitive, negitive along with negitive, possitive leaving us left with possitive, possitive and if you look on a coordinate plane you can make a rectangle with all of these coordinates put together. Hope this helps! :D

8 0
3 years ago
10. (a) Consider the following matrices: A = ( 2 ) B = (3) and C = (-3) w = Find the det(A). [1] (ii) Is the matrix A singular?
Viefleur [7K]

i) We have to find the determinant of A.

We can do this as:

\det(A)=|\begin{bmatrix}{3} & {6} \\ {1} & {-2}\end{bmatrix}|=3*(-2)-6*1=-6-6=-12

ii) We have to find if the matrix A is singular.

Singular matrix have determinant equal to 0.

This is not the case for A, as its determinant is -12. Then, A is not a singular matrix.

iii) We have to find the values of x and y so that AB = C.

We have to write the matrix multiplication and we will obtain a system of linear equations:

We can now solve the system of equations by adding 3 times the second equation to the first equation:

\begin{gathered} 3(x-2y)+(3x+6y)=3(-3)+(-3) \\ 3x-6y+3x+6y=-9-3 \\ 6x+0y=-12 \\ x=\frac{-12}{6} \\ x=-2 \end{gathered}

We can now use the second equation to find the value of y:

\begin{gathered} x-2y=-3 \\ x+3=2y \\ y=\frac{x+3}{2} \\ y=\frac{-2+3}{2} \\ y=\frac{1}{2} \end{gathered}

The values are x = -2 and y = 1/2.

iv) When we want to multiply two matrices, the required condition is that the number of columns of the matrix on the left is equal the number of rows of the matrix on the right.

In the case of A(2x2) and B(2x1), when we do A*B this condition is satisfied.

But when we try to multiply BA, the number of columns of B is not equal to the number of rows of A, so the matrix mulitplication is not possible.

Answer:

i) det(A) = -12

ii) A is not singular because singular matrices have determinant equal to zero.

iii) x = -2 and y = 1/2.

iv) Is not possible because the number of columns of the first matrix has to be equal to the number of rows of the second matrix.

6 0
1 year ago
How would you write in standard form 8 thousands+1200 hundreds
Alex_Xolod [135]
It is basically 8 thousand plus one thousand two hundred so your answer would be 9200
4 0
3 years ago
Please help ASAP Use the screenshot answer the question
Hoochie [10]

Answer:

0.35, 0.40

Step-by-step explanation:

4 0
2 years ago
Find the Unit Rate: If 10 30.5 oz containers cost $70 how much does one container cost?​
sleet_krkn [62]

Answer:

$7

Step-by-step explanation:

70 / 10 = 7

4 0
2 years ago
Read 2 more answers
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