3 years ago

Arrange the fractions in descending order -7/9,8/-15,19/30,-2/-5

Mathematics

1 answer:

ohaa [14]3 years ago

6 0

Answer:

19/30,8/-15,-2/5,-7/9,

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T F IfA and B are similar matrices, then AT=BT

muminat

Answer:

Step-by-step explanation:

We know that for two similar matrices $A$ and $B$ exists an invertible matrix $P$ for which

$[tex]B = P^{-1} AP$ [/tex]

∴ $B^{T} = (P^{-1})^{T} A^{T} P^{T} \\$

Also $P^{-1}P = I\\$

and $(P^{-1})^{T} = (P^{T})^{-1}$

∴ $(P^{-1})^{T}P^{T} = I$

so, $B^{T} = (P^{-1})^{T} A^{T} P^{T} = (P^{T})^{-1}A^{T} P^{T}\\B^{T} = A^{T} I\\B^{T} = A^{T}$

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3 years ago

Please help urgent!!! Find the value of x in the triangle shown below!

qwelly [4]

Answer:

Step-by-step explanation:

so we know a few things about t his triangle, it's a special one :P , it's called isosceles because two of the legs are the same length, which also mean that the angle x is the same at the other unknown angle sooo there are 2 x's if that makes sense? and then we can solve this , b/c we also know that the interior angles of a triangle add up to 180°

180 = 32 + 2x

148 = 2x

74 =x

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2 years ago

X^2-7x+1=0<br> using quadratic formula

bezimeni [28]

This is the answer in exact form