3 years ago

Which expressions are equivalent to y ⋅ 2 1/2 PLEASE HELPS :(...

Mathematics

1 answer:

gregori [183]3 years ago

4 0

Answer:

the answer is B) 2y+1/2y

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3 years ago

the circumference of the circle shown below is 54 centimeters. which expression gives the length in centimeters of XY?

g100num [7]

Answer:

The correct option is C

Step-by-step explanation:

Given the circumference of circle which is 54 cm and also the measure of arc XY is 120°

we have to find the expression for arc length of XY

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$\frac{\theta}{360}\times circumference$

$\frac{120}{360}\times 54$

Hence, option C is correct

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How to solve 0.5(5-7x)=8-(4x+6)

Yuri [45]

$\frac { 1 }{ 2 } \left( 5-7x \right) =8-\left( 4x+6 \right) \\ \\ \frac { 1 }{ 2 } \left( 5-7x \right) =8-4x-6$

$\\ \\ \frac { 1 }{ 2 } \left( 5-7x \right) =2-4x\\ \\ \frac { 1 }{ 2 } \left( 5-7x \right) =2\left( 1-2x \right) \\ \\ 2\cdot \frac { 1 }{ 2 } \left( 5-7x \right) =2\cdot 2\left( 1-2x \right)$

$\\ \\ 5-7x=4\left( 1-2x \right) \\ \\ 5-7x=4-8x\\ \\ -7x+8x=4-5\\ \\ x=-1$

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3 years ago