7+ 4x - 7x + 25 combined the like terms a. 32 - 3x b. 4 x + 25 c. 14 x + 4 x + 25 d. 29 x

ANSWER:

A. 32 - 3x

This is as the sum of 7 and 25 is 32 so:

7 + 25 = 32

As well as 4x subtracted by 7x being - 3x so:

4x - 7x = - 3x

When we combine this together, we get:

= 32 - 3x

Therefore, Option A must be the answer.

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Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )