Answers
Answer:
r=80
Step-by-step explanation:
80+r=160 subtract 80 on both sides
r=80
Hopes it help.-/
Related Questions
A story in the National Enquirer claimed that women who skip breakfast are more likely to give birth to baby girls, whereas women who eat breakfast are more likely to have baby boys. A skeptical researcher tested this by taking a sample of pregnant women who already knew the gender of their baby and asking them whether they ate breakfast each day or not. What are the odds of having a boy if you eat breakfast
Answers
Answer:
hello the options to your question is missing attached below are the options
answer : The number that had a boy and ate breakfast ( option 3 )
Step-by-step explanation:
The odds of having a boy if you eat breakfast is ; The number that had a boy and ate breakfast
This simply because the dependent variable is the Gender of the baby while the independent variable is Breakfast
Find the Area of the Polygons
Please Help Me!!!!!!!!!!!!!!!
Answers
Answer:
Um, the second one is 120 units..
Step-by-step explanation:
Answer:
The first one is 64 sq un
The second one is 120 sq un
Step-by-step explanation:
I do Rsm lol I cant figure out the third one
A physical education teacher wanted to know the effects of various activity levels on body composition. She surveyed her physical education classes and categorized 30 students into five activity levels based on the amount of daily exercise in which the students participated: inactive, semiactive, normal, active, and very active. She measured percent body fat values using skinfold calipers on all subjects with the following results.
Inactive Semiactive Normal Active Very Active
30.2 29.4 22.9 17.6 10.9
29.6 17.6 25.4 13.4 13.7
35.2 26.4 19.6 20.3 12.8
19.1 25.3 18.7 19.6 14.7
26.3 22.5 21.8 15.1 9.3
22.4 28.6 24.9 10.7 12.7
Required:
a. What is the independent variable in this study? What is the dependent variable?
b. What are the means and standard deviations for each group?
c. Does a significant difference exist among any of the groups?
Answers
Answer:
a. The independent variable is the activity level
The dependent variable is the body composition (the percentage of body fat in the values)
b. The mean and standard deviation are;
(Mean, Standard deviation)
Inactive(27.13, 5.8), Semiactive(24.97, 4.367), Normal(22.217, 2.73), Active(16.12, 3.73), Very Active (12.35, 1.95)
c. Yes
Between Semiactive and Active, Semiactive and Very Active, Normal and Very Active, Normal and Active, Active and Inactive, and Inactive and Very Active
Step-by-step explanation:
a. The independent variable is the activity level
The dependent variable is the body composition (the percentage of body fat in the values)
b. The given data are presented as follows;
Inactive [tex]{}[/tex] Semiactive Normal Active Very Active
30.2 [tex]{}[/tex] 29.4 22.9 17.6 10.9
29.6 [tex]{}[/tex] 17.6 25.4 13.4 13.7
35.2 [tex]{}[/tex] 26.4 19.6 20.3 12.8
19.1 [tex]{}[/tex] 25.3 18.7 19.6 14.7
26.3 [tex]{}[/tex] 22.5 21.8 15.1 9.3
22.4 [tex]{}[/tex] 28.6 24.9 10.7 12.7
Bymaking use of Microsoft Excel, we have;
Inactive [tex]{}[/tex] Semiactive Normal Active Very Active
Mean 27.13 [tex]{}[/tex] 24.97 22.217 16.12 12.35
Standard Deviation 5.8 [tex]{}[/tex] [tex]{}[/tex] 4.367 2.73 3.73 1.95
c. Yes
[tex]t=\dfrac{(\bar{x}_{1}-\bar{x}_{2}) }{\sqrt{\dfrac{s_{1}^{2} }{n_{1}}-\dfrac{s _{2}^{2}}{n_{2}}}}[/tex]
The degrees of freedom = n - 1 = 6 - 1 = 5
The critical t = 2.5706
Therefore, we have;
The test statistic for Inactive and semi active ≈ 0.72875
The test statistic for Semiactive Normal ≈ 1.309
The test statistic for Inactive and Normal ≈ 1.8773
The test statistic for Semiactive and Active ≈ 3.775 (Significant)
The test statistic for Semiactive and Very Active ≈ 6.464 (Significant)
The test statistic for Normal and Very Active ≈ 7.204 (Significant)
The test statistic for Normal and Active ≈ 3.231 (Significant)
The test statistic for Active and Inactive ≈ 3.91 (Significant)
The test statistic for Active and Very Active ≈ 2.194
The test statistic for Inactive and Very Active ≈ 5.92 (Significant)
Where the test statistic is larger than the critical 't' the statistic is significant
2 minutes 10 seconds-------130 seconds put the sign
Answers
Answer:
2 minutes 10 seconds = 130 seconds
Step-by-step explanation:
Given that,
LHS = 2 minutes 10 seconds
RHS = 130 seconds
Solving LHS first,
We know that,
1 minute = 60 seconds
2 minute = 120 seconds
2 minutes 10 seconds = 120s + 10 s
= 130 seconds
It means,
LHS = RHS
So,
2 minutes 10 seconds = 130 seconds
4 -3x + 7 what is cofient
Answers
Answer: 3
Step-by-step explanation:
A coefficient is the number that comes before a variable, so the three is before the x so 3 is the coefficient.
I need help with this
Answers
Answer:
x=45
Step-by-step explanation:
This is a triangle so it interior degrees will add up to 180.
W
Since Line AC is tangent to Circle O at point c, Point C measures 90 degrees.
We can find OAC by using the triangle interior theorem,
[tex]45 + 90 + x = 180[/tex]
[tex]135 + x = 180[/tex]
[tex]x = 45[/tex]
Which set of values make the inequality true x-8.7>15.8
Answers
Answer:
x>24.5
Step-by-step explanation:
cant do step by step because look
Find the value of x on a kite
Answers
Answer:
When we combine like terms we get 158 plus 2x equals 360 subtract 158 from both sides. And we get 2x...
Step-by-step explanation:
What is the equation ( y = mx + b) of the line that passes through (2,5) and (6, 13)
Answers
Answer:
y=2x+1
Step-by-step explanation:
y=mx+b
m=(13-5)/(6-2)
m=8/4
m=2
b=y-mx
b=5-2*2
b=5-4
b=1
y=2x+1
Answer:
y=2x+1
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(13-5)/(6-2)
m=8/4
m=2
y-y1=m(x-x1)
y-5=2(x-2)
y-5=2x-4
y=2x-4+5
y=2x+1
Jackson started writing a story at 8:30 AM He stopped writing at 1:15 P.M. How long did he write?
Answers
Answer: he wrote for an five hours and forty-five minutes
Step-by-step explanation:
QUICK!! NEED HELP ASAP!!!
Answers
Answer:
x to the 4th power+ 87x + 34
Step-by-step explanation:
please help me i really need help please
Answers
Answer:i know the x for 1 not for the other 2
Step-by-step explanation:1 is 4
Answer:
17) x= 36
18)
Step-by-step explanation:
17) 2x + 2x + x =180°(angles of a triangle)
5x = 180°
divide both sides by 5
X = 36
18) 7x +3x + 90° = 180°(angles of a triangle)
10x = 90
X = 9
19) 2x + x + x = 180° (angles of a triangle)
4x = 180°
X = 45
hope it helps
What are the coordinates of the midpoint between the points (-1,4) and (2,-5)
Answers
Answer:
(1/2, -1/2)
Step-by-step explanation:
To find a midpoint add the two x's and divide by 2 so -1+2 / 2 = 1/2
add the two y's and divide by 2 so 4-5 / 2 = -1/2
Put the two numbers together as a coordinate (1/2, -1/2)
Jorge was studying average life expectancy in Europe and how it varies across different countries. He wanted to discover what variables were good predictors of life expectancy and identified 3 that he believed could possibly be good predictors:
employment rate,
access to healthcare, and
number of car accidents per year.
He conducted a multiple linear regression analysis using these variables.
When looking over the results of this analysis, he saw
that the scatterplot did not show a linear pattern between each of the explanatory variables and the response variable.
that there was not a funnel shape to the residual vs. predicted plot. that the histogram of the normal quantile plot was fairly normal.
Based on all of these findings,
he can say that the linearity condition _________
the equal variance condition ________
the normality condition _____________
the 10% condition ____________
and the success failure condition __________
Options for each:
A) is not met
B) does not need to be checked for multiple linear regression
C) is met
Answers
Answer:
Is not met ( A )Is not met ( A ) Does not need to be checked for multiple linear regression ( B )Does not need to be checked for multiple linear regression ( B )Step-by-step explanation:
Linearity condition is : NOT MET
The equal variance condition is : NOT MET
The 10% condition : Does not need to be checked for multiple linear regression
The success failure condition : Does not need to be checked for multiple linear regression
Jill collected a total of 19 gallons of honey. If she distributes all of the honey equally between 7 jars, how much honey will be in each jar?
Answers
To assess the effectiveness of a kindergarten-readiness program, 15 children from a random sample were each given a diagnostic assessment before beginning the program and a follow-up assessment after completing the program. For each child, the difference in the score points between the two assessments was calculated and used to create the 95 percent confidence interval (20.1,23.9)(20.1,23.9).
Assuming all conditions for inference are met, which of the following is a correct interpretation of the interval?
A) For all children in the program, 95 percent of the children will have a mean difference in scores of between 20.1 points and 23.9 points.
B) There is a 0.95 probability that the mean difference in scores for all children in the sample is between 20.1 points and 23.9 points.
C) There is a 0.95 probability that the mean difference in scores for the children in the program is between 20.1 points and 23.9 points.
D) We are 95 percent confident that the mean difference in scores for all children in the program is between 20.1 points and 23.9 points.
E) We are 95 percent confident that the mean difference in scores for the children in the sample is between 20.1 points and 23.9 points.
Answers
Answer:
D) We are 95 percent confident that the mean difference in scores for all children in the program is between 20.1 points and 23.9 points.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
95 percent confidence interval (20.1,23.9)
We are 95% sure that the population mean(that is, the mean for all children in the program) is in this interval. So the correct answer is given by option D.
what is the mean will give brainlyest
Answers
Monica and jaimy are creating number patterns. Monica uses the rule . "Multiply by 3 and stats at 4 .Jaimy uses the rule "add 6 and stars at 12 .which term in Jaimy's
Answers
Answer:
Jaimy's fifth term equals Monica third term of 36.
Step-by-step explanation:
Monica:
Multiply by 3 and starts at 4.
4*3 = 12
12*3 = 36
36*3 = 108
...
So: {3,12,36,108,...}
Jaimy:
Adds 6 and starts at 12. So
12 + 6 = 18
18 + 6 = 24
24 + 6 = 30
30 + 6 = 36
...
So: {12,18,24,30,36,...}
So Jaimy's fifth term equals Monica third term of 36.
Please help meeeeeeee
Answers
Answer:
the answer is b..all the answer optioni get 0.01
4x²y+2xy² simplefid in algebra
Answers
Answer:
Difficulties regarding the emotions of your body.
Step-by-step explanation:
Difficulties regarding the emotions of your body.
please help me i really need help please
Answers
Answer: 66.
explanation: Ok so right triangle: 1 right angle or 90° and 2 acute angles (Less than 90°). We know that one of the angles are equal to 24° and the right angle is equal to 90° degrees. Now what? We add those 2 values together. 90 + 24 = 114. In the background, a triangle is equal to 180°. So now that we have our 2 core values together, we subtract. The reason why is because this is a missing value type equation. In these types, (usually indicated by the word find) we can subtract 2 values. Our 2 values is 114 and 180. When we subtract both, we get 66.
A triangle has side lengths of 23 cm, 6 cm, and 28 cm. Classify it as right,acute, or obtuse
Obtuse
Right
Acute
Answers
what is the answer
1 x -2 +3
Answers
Answer:
The anwser is 1.
Step-by-step explanation:
What is the center and radius of the circle? (x-1)^2+y^2=25
Answers
Answer: The center is (-5,2)
The radius is 5
Step-by-step explanation:
Equation of a circle is:
(x-h)^2+(y-k)^2=r^2
(x+5)^2+(y-2)^2=5^2
Comparing both equations we get :
The center (-5,2)
The radius is 5
Hope This Helps :)
Please help me with these two questions!
Answers
Answer:
Formula for both is: A= (h•b)/2
Plug in values for First one are: 16 and 14
Area of first one: 112in^2
Plug in values for Second one: 2 and 3.5
area of second one: 3.5m^2
Step-by-step explanation:
plug in the values-. A= 16•14= 224 224÷2= 112
plug in the values #2- A= 2•3.5= 7 7÷2= 3.5
hope this helps u <3
If 40% of the voters who responded are over 40 years old how many voters responded it all
Answers
5 feet. how many miles is that using the scale? 1 ft= 4 mile
Answers
Answer:
your answer I think would be 20 miles
Why were most peppered moths dark in the 1959 era but light in the 2000s?
Answers
In January 2007 the population of Canada was 32 million.
7 million of these Canadian people spoke French as their first language.
(a) Express 7 million as a percentage of 32 million.
Give your answer correct to 1 decimal place.
Answers
Answer:
21.9%
Step-by-step explanation:
7000000/32000000=0.21875
move the decimal over two places to get percent and round the 8 up because of the 7. 21.9%
Help me answer my homework questions!
Answers
Answer:
Page 1: D
Page 2: A
Page 3: D
dad lol