Mathematics, 01.12.2020 18:40 reneebrown017
Which expression is equal to (−4x2−1)(2x2+3)?
−8x4−14x2−3
−8x4−10x2+3
−8x2−14x−3
8x4−14x2+3
Answers: 2
Mathematics, 21.06.2019 13:20
Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.
Answers: 2
Mathematics, 21.06.2019 20:00
The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?
Answers: 1
Mathematics, 21.06.2019 23:00
Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain
Answers: 2
Which expression is equal to (−4x2−1)(2x2+3)?
−8x4−14x2−3
−8x4−10x2+3
−8x2−...
−8x4−10x2+3
−8x2−...
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