Answer:
Dimensions are
Length= 91 units
Width=15 units
Step-by-step explanation:
The formula for perimeter is 2(l+w) where l is length and w is width.
Given perimeter is 212 units
Let the width , w=x units
Length is 16 more 5 times the width= 5x+16 units
So length will be = 5x+16
and width will be= x
Perimeter = 2(l+w)
212=2( 5x+16+x)
212=10x+32+2x
212=12x+32
212-32=12x
180=12x
180/12=12x/12
15=x----------------------width
For length= 5x+16
l=(5*15) +16
l=75+16=91 units-------------length
Answer:
the answer is 95.5 dollars on apples. the question is stupid i hope this helps.
Step-by-step explanation:
3*3*3
27*3.50
+1
=95.5
Answer:
I think the answer is 1
Step-by-step explanation:
-49÷7=-7
-7÷-7=1
Answer:
D. Chi-square test for two-way table
Step-by-step explanation:
To test if there is an association between the percentage of people that successfully stop smoking and the method they used to do so, a random sample of 584 smokers who tried to quit smoking and was orted by the method they used to help themselves to achieve their goal (nicotine-patch or e-cigarettes). After six months, the proportion of subjects that successfully stopped smoking.
In this case, the t-test is not applicable, this statistic is to test the population mean. The variable of the study is the proportion of people that successfully stopped smoking using either method.
To apply Chi-Square tests the condition to be met is that the variable is categorizable and since the data can be organized in a 2x2 table, all expected frequencies should be >5.
The objective of the Goodness-to-fit test is to test if a population follows a certain theoretical model.
In this example, the objective is to compare the proportion of people that successfully quit smoking and the proportion of people that failed by using either method.
Answer: He is 3.8 miles away from his house.
Explanation :
Distance the first trail took him away = (+) 4.5 miles
( We will show it with positive sign as it increase the distance away from the house)
Distance the second trail took him closer = (-) 2.4 miles
(We will show it with negative sign as it decreases the distance)
Distance the third trail took him far away = (+) 1.7 miles
Now , total distance = 4.5-2.4+1.7
= 3.8 miles
∴ He is 3.8 miles far his house.
