I hope this helps you
take both of sides paranthesis square
(2a+7b)^2=(11)^2
4a^2+2.4a.7b+49b^2=121
4a^2+49b^2+56.2=121
4a^2+49b^2=9
Answer:
781000
Step-by-step explanation:
550000* 42%
231000+550000
(=^w^=)
Answer:
3493.70
Step-by-step explanation:
if you multipy all these in a calculator you get a long number, look at the third digit behind the decimal, if its 5+ then make the second digit behind the decimal one number higher. If its 4 or under than keep the number the same. To round, cut off all the digits behind the second digit thats past the secimal
Neither because the 0 in 20 has no value so u dont count it.there equal
Answer: as the sample size is approximately large, the margin of the error is 0.15
Step-by-step explanation:
