Need help! MATH QUESTION!! 1.) How many solutions does 2x = 4 have? Explain.

2.) Is “ x = 7” a solution to the equation below? Explain in detail how you know. Use words, or diagrams, in addition to calculations. x - 4 = 3

3.) Are there any other solutions? How do you know?

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

For which pair of functions is (gof)(a)=|a|-2?

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125