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3 years ago

Calculate the new perimeter using a scale factor of 1/5

Mathematics

1 answer:

anygoal [31]3 years ago

5 0

Answer:

Step-by-step explanation:

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PilotLPTM [1.2K]

Answer:

0.25 lbs for each sandwich.

3 0

3 years ago

Suppose x and y are nonzero vectors in an inner product space. Show that x and y are orthogonal if and only if ||x+y|| = ||x-y||

harkovskaia [24]

Answer:

Step-by-step explanation:

Suppose x and y are nonzero vectors in an inner product space.

Let us assume that x and y are orthogonal

i.e. innter product is 0.

This implies dot product of x and y is 0

Then x.y =0

i.e. $x^2+y^2 +2x.y = x^2+y^2-2x.y\\||x+y||=||x-y||$

Proved

Converse part:

Let $||x+y||=||x-y||$

Square also would be equal

$||x+y||^2=||x-y||^2\\||x||^2+||y||^2+2x,t=||x||^2+||y||^2-2x.y\\x.y =0$

Hence inner product of x and y is 0

7 0

3 years ago

Is the answer to #7 true

Marianna [84]

Yes it is true

Hope this helps

7 0

3 years ago

"Tim's lawn is 20 meters by 30 meters. If Tim can mow 8 square meters of grass per minute, how long will it take him to mow the

frosja888 [35]

One hour and a half

5 0

3 years ago

Solve the equation E = IR for I

alexgriva [62]

Answer:

$I=\frac{E}{R}; R\neq 0$

Step-by-step explanation:

$E=IR\\\\IR=E\\\\\frac{IR=E}{R}\\\\ \boxed{I=\frac{E}{R}; R\neq 0}$

Hope this helps.

3 0

3 years ago