Answer:
the answer is 4
Step-by-step explanation:
32÷8=4 therefore b is 4
We have these opposite pairs
- 9.2 and -9.2
- 2.9 and -2.9
- 1.4 and -1.4
- 4.1 and -4.1
So all we're doing is matching each positive number with its negative version. In terms of a visual, the opposite of a number is mirrored over 0 on the number line. So for instance, the opposite of 2 is -2, with each being two units away from 0 on the number line.
C)
the answer should be 24a^-1b^10
Answer:$259
Step-by-step explanation:
since we need to increase $250 by 6%, it is useful to find one percent because 1% is easy to find
to find one percent of 250, we move the decimal point(we cant see it right now) from after the number to after 2 giving us 2.50. we need to do this to find one percent because 1% is the same as one HUNDREDth, and since 100 has two zeros, we move the decimal place two spaces.now that we know that 1% is $2.50 ( which is the same as $2.5) we can times that by six which gives us 6%(because one times 6 is 6) to multiply 2.5 by 6, we first multiply 6 by 2 which will give us 12 and then multiply it by 0.5 (because 2 + 0.5 =2.5) 0.5 multiplied by 6 is equal to 3 and 3 + 6 = 9. we know know that 6% of $250 is $9. we now just add 9 to 250 leaving us with $259
Answer:
[ 1,532.41, 1,617.59]
Step-by-step explanation:
Data provided :
Sample size, n = 120
Mean = $1,575
Standard deviation = $215
Confidence level = 97%
Now,
Confidence interval = Mean ± 
also,
for 97% confidence level z score = 2.17 [from standard z-table]
= $1,575 ± 
= $1,575 ± 42.59
Therefore,
Confidence interval = [ $1,575 - 42.59, $1,575 + 42.59]
= [ 1,532.41, 1,617.59]
