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3 years ago

PLZ ANSWER QUICK

Mathematics

1 answer:

STatiana [176]3 years ago

4 0

Answer:

i think its 24

Step-by-step explanation:

because its from P to H and that is 2× D to E so 12×2=24 therefore you're answer is 2r

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27 • a • a • a as an expression?

Alekssandra [29.7K]

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3 years ago

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2 years ago

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aliya0001 [1]

Step-by-step explanation:

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borishaifa [10]

Answer: $x+y\geq 1$ , $x>\frac{1}{4}$ , $x\geq 2y$ and $y\geq 0$

Step-by-step explanation:

Here, x represents the number of hours Zoe spent running on her wheel and y represents the number of hours spent scratching her cage.

Julie was awoke for at least an hour running on her exercise wheel and scratching the of her cage.

⇒ $x+y\geq 1$

She ran on her wheel at least twice as long as she scratched at the corners of her cage.

⇒ $x\geq 2y$

Also, She spent more than 1/4 hour running on her wheel.

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And, we know that number of hours can not be negative.

⇒ $y\geq 0$

Therefore, the complete system of inequality which shows the given situation is,

$x+y\geq 1$ , $x>\frac{1}{4}$ and $x\geq 2y$ , $y\geq 0$

Note: the feasible region ( covered by the given system) is shown in the below graph.

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3 years ago

When 3+4i2+i is expressed in the form a+bi, what is the value of a?

mart [117]

Multiplying and dividing with conjugate of 2+i in the given expression, we get(3+ 4i)(2-i)/(2+i)(2-i)=(6-3i+8i-4i^2)/(4-i^2)=(10+5i)/(4+1)=(10+5i)/5=2+i=a+bi<span>Thus a=2</span>

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3 years ago