Answers
Answer:
∠1 = 150°
Step-by-step explanation:
supplementary angle to angle 1 = 180° - 100° - 50° = 30°
∠1 = 180° - 30° = 150°
Related Questions
Find the area.
A. 188 in.2
B. 278 in.2
C. 322 in.2
D. 250.5 in.2
Answers
Which expression is equivalent to
Answers
Answer:
B) x^(5/3)*y^(1/3)
Step-by-step explanation:
Taking the cube root of a number is the same as raising it to the 1/3 power:
∛x=x^1/3
∛(x⁵y) = x^(5(1/3))*y^(1/3)=x^(5/3)*y^(1/3)
Remember to multiply exponents when raising an exponent to an exponent and distribute the 1/3 to each exponent!
Jeremy has $3.50 to purchase erasers. If erasers cost $0.21 each, about how many can he buy?
Answers
Answer:
16 brainlist pls
Step-by-step explanation:
2. 144 in.
C
yd
Pls someone help I have a test tomorrow
Answers
what are you asking im confused
144 inches = 4 yards
Explanation:
There are 36 inches in one yard. So, 144 over 36 equals 4.
Hi please help I have no confidence or motivation at this point and I just don't wanna fail. Thank you.
1. To determine if "A" students tend to sit in a particular part of the classroom, a teacher recorded the locations of the students who received grades of A. He found that 17 sat in front, 9 sat in the middle, and 5 sat in the back of the classroom, when testing the assumption that the "A" students are distributed evenly throughout the room, he obtained the test statistic of x2 = 7.226. If using a 0.05 significance level, is there sufficient evidence to support the claim that the"A" students are not evenly distributed throughout the classroom? Then state the conclusion.
A. Fail to reject the null hypothesis; there is sufficient evidence to support the claim that the A" students are not evenly distributed throughout the classroom.
B. Fail to reject the null hypothesis; there is sufficient evidence to support the claim that the "A" students are evenly distributed throughout the classroom.
C. Reject the null hypothesis; there is sufficient evidence to support the claim that the "A" students are not evenly distributed throughout the classroom.
D. Reject the null hypothesis; there is sufficient evidence to support the claim that the "A students are evenly distributed throughout the classroom.
----
4. After getting several "flat tire" excuses for missed tests, a college instructor asked her 40 students to identify the tire they would select for their excuse and recorded the results in a frequency table with the following categories: left front, right front, left rear, and right rear. If you are using a 0.05 significance level to test a claim that the results fit a uniform distribution, what is the critical value for the goodness-of-fit test needed to test the claim?
A. 7.815
B. 55.758
C. 9.488
D. 43.773
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7. An experiment is performed using 1000 trials to test a new scientific model. There are 10 different categories of outcomes. When testing the claim that the observed outcomes agree with the expected frequencies, a test statistic is found to be χ2 = 8.185. Use a 0.05 significance level to test the claim that the actual outcomes agree with the expected frequencies. State the conclusion.
A. Fail to reject the null hypothesis; there is sufficient evidence to warrant rejection of the claim that the observed outcomes agree with the expected frequencies.
B. Reject the null hypothesis; there is not sufficient evidence to warrant rejection of the claim that the observed outcomes agree with the expected frequencies.
C. Reject the null hypothesis; there is sufficient evidence to warrant rejection of the claim that the observed outcomes agree with the expected frequencies.
D. Fail to reject the null hypothesis; there is not sufficient evidence to warrant rejection of the claim that the observed outcomes agree with the expected frequencies.
----
8. A wedding caterer randomly selected clients from the past few years and recorded the months in which the wedding receptions were held. She was interested in testing a claim that weddings occur in different months with the same frequency. She found the test statistic to be χ2 = 10.600. Use a 0.05 significance level to find the critical value for the goodness-of-fit and test the claim that weddings occur in different months with the same frequency. Then state the conclusion.
A. 19.675; reject the null hypothesis
B. 21.026; reject the null hypothesis
C. 19.675; fail to reject the null hypothesis
D. 21.026; fail to reject the null hypothesis
----
10. A candy company claims that the colors of the candy in their packages are distributed with the (1 following percentages: 16% green, 20% orange, 14% yellow, 24% blue, 13% red, and 13% purple. If given a random sample of packages, using a 0.05 significance level, what is the critical value for the goodness-of-fit needed to test the claim?
A. 12.592
B. 15.822
C. 12.833
D. 11.071
Answers
Answer:
1) C. reject the null hypothesis; there is sufficient evidence to support the claim that “A” the students are NOT evenly distributed throughout the classroom
4) A. 7.815
7) D. fail to reject the null hypothesis; there is not sufficient evidence
i’m sorry my test doesn’t have questions 8 and 10 so i don’t know the answer
Step-by-step explanation:
i just took the test
Hey if anyone could help it would be much appreciated
Answers
Answer:
I think it is 0.029
Step-by-step explanation:
I think sorry if its wrong
Answer:
the answer is 0.028 hope it helps
A club began with 3 members. Each month, each member brought one new
member. Which function can be used to determine the number of members x
months after the club began?
А
f(x) = 2x + 3
B
f(x) = 3x + 1
С
f(x) = 1.5(2)
D
f(x) = 3(2)*
Answers
Answer:
D .f(x) = 3(2)*
Step-by-step explanation:
I took a test with this same question.
. Given that AOC is a straight line, find the value of x in the following figure.
. Given that AOC is a straight line, find the value of x in the following figure.
. Given that AOC is a straight line, find the value of x in the following figure.
Answers
Answer:
where is the a or c
Step-by-step explanation:
where is the A and C... it is cut...I can't see it
A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 530 college students showed that 21% of them had, or intended to, cheat on examinations. Find the 95% confidence interval for the population proportion. Round to four decimal places.
Answers
Answer:
(0.1753 ; 0.2447)
Step-by-step explanation:
Using the relation :
Confidence interval :
p ± margin of error
p = 0.21
1 - p = 0.79
n = 530
Zcritical at 95% confidence level = 1.96
Margin of Error : Zcritical * sqrt[(p(1-p))/n]
1.96 * sqrt[(0.21(0.79))/530]
1.96 * 0.0176923 = 0.0346769
Margin of Error = 0.0346769
Lower boundary = 0.21 - 0.0347 = 0.1753
Upper boundary = 0.21 + 0.0347 = 0.2447
Confidence interval :
(0.1753 ; 0.2447)
A trout swam at a steady speed for 1.5minutes. It swam 9,900 centimeters in that time. What was its speed?
Answers
Answer:
6,600 cm per minute
Step-by-step explanation:
I got 6,600 by taking 9,900 divided by 1.5 minutes because it took the trout 1.5 minutes to swim 6,600 cm. 9,900/1.5= 6,600. So, the trouts was swimming at a speed of 6,600 cm per minutes.
Beverly makes wooden boxes for a crafts fair. She makes 400 boxes like the one shown, and she wants to paint all the outside faces.
Answers
Answer:
2400
Step-by-step explanation:
a box has six sides
400*6
I need the answer for 15 please.
Answers
Answer:
46
Step-by-step explanation:
I think the answer Is 46 I'm not 100% sure though but I do think it is 46
Who was the first lady
Answers
Answer:
While the title was not in general use until much later, Martha Washington, the wife of George Washington, the first U.S. president (1789–1797), is considered to be the inaugural first lady of the United States. During her lifetime, she was often referred to as "Lady Washington".
plz can i get brainliest
Answer:
there are many first lady's but because you said was like past tense the last first Lady was Melania Trump. the current first Lady is Jill Biden! I hope this helps!!♡♡
GEOMETRY 10TH GRADE HELP ASAP!!!
Answers
Answer:
Step-by-step explanation:
A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 15 cm long and 4 cm wide. The diameter of each circle is the width of the rectangle. What is the area of the bookmark? Use 3.14 for pi
Answers
Answer:
The area of the rectangle is Length x width. So 12x4 would =48 sq cm. The area of the circle is ( 3.14 ) x r2.
The area of the circle would be = (3.14)x2^2)=12.56 cm sq.
So the total area is= Area of rectangle +Area of circle
TA=48+12.56
TA=60.56 sq cm
:)
PLEASE HELP! Find the midpoint given (0,11) and (-6,3).
Answers
Answer:
(- 3, 7 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] )
Here (x₁, y₁ ) = (0, 11) and (x₂, y₂ ) = (- 6, 3) , then
midpoint = ( [tex]\frac{0-6}{2}[/tex], [tex]\frac{11+3}{2}[/tex] ) = ( [tex]\frac{-6}{2}[/tex], [tex]\frac{14}{2}[/tex] ) = (- 3, 7 )
Answer:
(-3,7)
hope it helps........
Sandy rented a car. She paid a flat rental fee of $59 plus an additional charge of $39 for each day. The total amount she paid for the service was $293. If no other charges or tax were included in the total, for how many days did she rent the car?
Answers
Answer:
She rented the car for 3 days but what I dont get is that if you add both multiply by 3 it gives you 294 so Im not really sure maybe try dividing if that doesnt work just put 3
Step-by-step explanation:
Why do liquids have to be poured into containers before they can be measured?
1.The container has numbers on it.
2.It would spill if not in a glass.
3.Liquids do not have a definite shape.
witch one
Answers
Write an expression to show the sum of 2j and 5 .
Answers
Answer:
2j+5 =
Step-by-step explanation:
"Sum" is a keyword for addition. so 2j + 5 would be your answer, I believe.
calculate the following -50(20-25)+30(-10+7)-20(+16+12)
Answers
Answer:
-400
Step-by-step explanation:
PLZ help me on this ASAP which one is it??? Its due in a couple of mins :(((
Answers
Answer:
answer two solution
Step-by-step explanation:
y=x²+16x+63
plz help im confusing myself on this problem plz show work to thx for the help
Answers
Answer:
\frac{d}{dx}\left(x^2+16x+63\right)=2x+16
Step-by-step explanation:
find the equation of the line passing through points (-4,2) and (1,-6)
Answers
Answer:
y + 6 = (-8/5)(x - 1) in point-slope form
Step-by-step explanation:
Moving from the 1st point to the first, we see that x (the 'run') increases by 5 from -4 to 1, and y (the 'rise') decreases by 8. Thus, the slope of the line through these two points is m = rise / run = -8/5
Now we have two points on the line, plus the slope. Let's write out the point-slope formula for the equation of a straight line:
y - k = m(x - h), where (h, k) is a point on the line and m is the slope of the line.
Here, using the point (1, -6), we obtain:
y + 6 = (-8/5)(x - 1) in point-slope form
Vinny has 4 gallons of lemonade. How many -gallon glasses can Vinny fill with the lemonade?
А.
glass
45 glasses
B
с
24 glasses
D
32 glasses
Answers
***MARKED BRAINLIEST***
Answers
Answer:
D is the answer
Step-by-step explanation:
Can someone help me please ☺
Find the cost of fencing a park with the length of 175 meters and a width of 125 meters. The cost is $12. per meter.
Answers
Answer:
The answer is $3600 I hope this is helpful.
Brainiest and 35 points for first correct answer. Purposely wrong answers will be deleted and reported, as well as wrong and guessed answers. Thank you.
Points A and B have opposite x-coordinates but the same y-coordinates.
On a coordinate plane, point A is 2 units to the left and 3 units up. Point B is 2 units to the right and 3 units up.
How many units away are each of the points from the y-axis?
2
3
4
5
Answers
Answer:
they are 4 unit away from the Y axis because you are counting the square units from Y not the lines across.
Answer:
4Step-by-step explanation:
Asynchronous between the variables y and x "
If for the equation
(i) If D, = 12 and D = 4, then find the value of x.
(ii) If D = -3 and D, = 6, then find the value of '.
The fermentation is 4
I play a gambling game in which I will win different amounts of money with different likelihood's. Suppose that I win X dollars with a probability of P(X) (if C is negative I am losing money). The distribution is as follows: what is the appropriate value of P?
Answers
Answer:
[tex]p = 0.05[/tex]
Step-by-step explanation:
Given
See attachment for the distribution
Required
Find p
To find p, we make use of:
[tex]\sum P(x) = 1[/tex]
So, we have:
[tex]0.50 + 0.25 + 0.13 + 0.07 + p = 1[/tex]
[tex]0.95 + p = 1[/tex]
Make p the subject
[tex]p = 1 - 0.95[/tex]
[tex]p = 0.05[/tex]
Simplify the expression by applying the distributive property and then combining like terms
5(2 + 5) +9
+
Answers
The first two angles in a triangle are 90 degrees and 50 degrees. What does the third angle have to be?
A. 20 degrees
B. 40 degrees
C. 50 degrees
D. 90 degrees
Answers
Answer:
B) 40 degrees
Step-by-step explanation:
90 + 50 = 140
Each triangle have 180 °
180 - 140 = 40