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2 years ago

Type the expression that results from the following series of steps: Start with x and double it.

Mathematics

1 answer:

attashe74 [19]2 years ago

4 0

Answer:

$2x$ is the expression we determine after following the steps 'Start with x and double it'.

Step-by-step explanation:

As we have to determine the expression based on a mentioned series of steps.

The series of steps:

start with x and double it.

As the double value of x would be 2x, therefore, the required expression would be: 2x

Therefore, $2x$ is the expression we determine after following the steps 'Start with x and double it'.

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Step2247 [10]

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3 years ago

In a right triangle, Sin (30 + x) º = Cos (3x) º. What is the value of x?

pogonyaev

Answer:

$x=15^\circ$

Step-by-step explanation:

In a right triangle:

$\sin \theta =cos(90^\circ-\theta) $ (Complementary angles)$

Therefore, given:

$Sin (30 + x) \º = Cos (3x) \º\\30+x+3x=90^\circ\\30+4x=90^\circ\\4x=90^\circ-30^\circ\\4x=60^\circ\\$Divide both sides by 4\\x=15^\circ$

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3 years ago

Which expression is equivalent to 3+2?

vichka [17]

Answer:

Any expression that equals 5.

Step-by-step explanation:

3 + 2 = 5, so any expression that equals 5 is equivalent to 3+2.

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3 years ago

What is a forecast error

Mama L [17]

Answer:In statistics, a forecast error is the difference between the actual or real and the predicted or forecast value of a time series

Step-by-step explanation:find the Mean Absolute Percent Error (MAPE) of your forecast. Statistically MAPE is defined as the average of percentage errors.

4 0

3 years ago

bulgar [2K]

Answer:

8/9 will be left over

Step-by-step explanation:

3 7/9 + 5 1/3= 9 1/9

Now subtract the amount of paint needed by how much paint there is:

10- 9 1/9= 8/9

Therefore, 8/9 will be left over

Hope this helps

5 0

2 years ago