2 years ago

Please help I need to do this ASAP!!

Mathematics

1 answer:

labwork [276]2 years ago

8 0

Yah I can’t see it either

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If m = (3x-1) and n = (3x+1),sjow that x² = mn+1 by 9

aalyn [17]

Step-by-step explanation:

${x}^{2} = \frac{mn + 1}{9}$

$(3x - 1)(3x + 1)$

$9 {x}^{2} - 1$

${x}^{2} = \frac{9 {x}^{2 } - 1 + 1 } {9}$

${x}^{2} = \frac{9 {x}^{2} }{9}$

${x}^{2} = {x}^{2}$

So this identity is true.

5 0

3 years ago

A company rents out 11 food booths and 24 game booths at the county fair. The fee for a food booth is $175 plus $5 per day. The

AURORKA [14]

11(175+5d) + 24(50+7d)

3 0

2 years ago

One half of the product of 4 and 5

quester [9]

4*5=20/2 = 10

hope helped

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2 years ago

Determine if the specified linear transformation is (a) one-to-one and (b) onto. Justify your answer. T: , T()(,),

xz_007 [3.2K]

Answer:

C. T is not one-to-one because the standard matrix A has a free variable.

Step-by-step explanation:

Given

$T(x_1,x_2,x_3) = (x_1-5x_2+4x_3,x_2 - 6x_3)$

Required

Determine if it is linear or onto

Represent the above as a matrix.

$T(x_1,x_2,x_3) = \left[\begin{array}{ccc}1&-5&4\\0&1&-6\\0&0&0\end{array}\right] \left[\begin{array}{c}x_1&x_2&x_3\end{array}\right]$

From the above matrix, we observe that the matrix does not have a pivot in every column.

This means that the column are not linearly independent, & it has a free variable and as such T is not one-on-one

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2 years ago

I live for walks at a rate of 4 mph she lives 2 miles from the news station how long will it take her to walk home from the news

Tresset [83]

um half hour? because at 4mph youll get 4 miles in an hour so 2 miles, is half the rate which makes it half hour

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3 years ago