Step-by-step explanation:
3x²+10x+8 = 3x²+6x+4x+8
= 3x(x+2)+4(x+2)
= (3x+4)(x+2)
A circle is 360° all the way around; therefore, if you divide anarc's<span> degree measure by 360°, you find the fraction of the circle's circumference that the </span>arc<span> makes up. Then, if you multiply the length all the way around the circle (the circle's circumference) by that fraction, you get the length along the</span>arc<span>.</span>
Answer:
8a-5a=3a
Step-by-step explanation:
8-5=3, basically simple subtraction, just bring the variable to the other side.
Answer:
The best recommendation is to: Increase the sample size.
Step-by-step explanation:
The width of a confidence interval ,depends on three things,
- Sample size (n)
- Standard deviation
- Confidence level
To decrease the width the following options can be used:
- Increase the sample size.
Since the sample is inversely proportional to the width of the confidence interval, increasing the value of <em>n</em> will decrease the width.
- Decrease the standard deviation.
The standard deviation is directly proportional to the width of the confidence interval. On decreasing the standard deviation value the width of the interval will also decrease.
- Decrease the confidence level.
The critical value of the distribution is based on the confidence level. Higher the confidence level, higher will be critical value.
So, on deceasing the confidence level the critical value will decrease, hence decreasing the width of the interval.
Thus, the best recommendation is to: Increase the sample size.
5 ounce can is better to buy
<h3><u>Solution:</u></h3>
Given that 5 ounce can of tuna cost $0.90 and a 12 ounce can of tuna costs $2.40
To find: which is better to buy
To find out which one is the better buy we have to find out what the unit price of both cans
To find a unit price you divide the ounce by the cost.
<h3><u><em>
5 ounce can of tuna cost $0.90:</em></u></h3>
cost of 5 ounce can = $ 0.90
Thus cost of 1 ounce is found out by:
Thus cost of one ounce is $ 0.18
<h3><u><em>
12 ounce can of tuna costs $2.40:</em></u></h3>
cost of 12 ounce can = $ 2.40
Thus cost of 1 ounce is found out by:
Thus cost of one ounce is $ 0.2
Thus on comparing unit price of 5 ounce can and 12 ounce can,
we can see clearly that unit price of 5 ounce can costs less than 12 ounce can
Thus 5 ounce can is better to buy