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Mathematics

2 answers:

Ahat [919]3 years ago

6 0

Answer:

x=8

Step-by-step explanation:

x + 2 - 2 = 10 - 2 subtract 2 from both sides/ simplify x = 8

Inga [223]3 years ago

3 0

Answer:

X=2

Step-by-step explanation:

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What is a Cartesian coordinate plane (math)

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A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular directed lines, measured in the same unit of length.

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4 years ago

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Christina uses a ruler to measure the length of the math book she says that the book is 4/10 m long is her measurement in simple

lidiya [134]

Answer:

2/5 m or 4 dm

Step-by-step explanation:

The fraction 4/10 can be reduced by removing a factor of 2 from numerator and denominator. The length could be expressed as 2/5 m.

The metric system has unit prefixes that make it easy to choose appropriate units for almost any measurement. Apparently Christina wants to use 1/10 m as her unit of measurement. That length is also called a "decimeter." So, Christina's measurement could be expressed in very simple form as 4 dm.

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A decimeter is not a particularly common unit in everyday use, though it is reasonably useful for many purposes.* More conventionally, lengths in that range are expressed in centimeters, so Christina's measurement could also be described as 40 cm.

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* I like units of decimeters for volume calculations, because a cubic decimeter is 1 liter.

3 0

3 years ago

Complete the steps to solve the radical equation. 7 – x = x2 + 10x + 25 0 = x2 + 11x + 18 The equation has two possible solution

Strike441 [17]

There is no extraneous solution, while true solutions are x= -2 and x = -9

Step-by-step explanation:

We need to find the value of x from the equation:

$7-x = x^2 + 10x + 25$