Complete question is;
A fair coin should land showing tails with a relative frequency of 50% in a long series of flips. Felicia read
that spinning-rather than flipping-a US penny on a flat surface is not fair, and that spinning a penny
makes it more likely to land showing tails. She spun her own penny 100 times to test this, and the penny
landed showing tails in 60% of the spins.
Let p represent the proportion of spins that this penny would land showing tails.
What are appropriate hypotheses for Connor's significance test?
A. H_0 : p = 50% H_1 : p > 60%
B. H_0: p = 50% H_1: p > 50%
C. H_0: p = 50% H_1: p < 50%
D. H_0 : p = 60% H_1 : p < 60%
Answer:
Option B is correct
Step-by-step explanation:
From the question it is clear that;
The population proportion is 50% because it is not associated with any sample size.
However, the sample size is 100 and the sample proportion from this 100 is 60%.
But we don't define our hypothesis based on the sample proportion.
Now we want to find the probability that spinning a penny makes it more likely to land showing tails.
Thus we define the hypothesis as;
Null hypothesis; H0 : p=50%
Alternative hypothesis; H1 : p>50%
Question 4 (1 point)
Which list shows the correct order of coefficients needed to balance the chemical
equation?
_CH4 + __Cl2 → __CCl4 + _HCI
a 1, 4, 1, 2
b 1, 4, 1, 4
c 1, 2, 1, 4
d 1, 1, 1, 1
Answer:
d
Step-by-step explanation:
Solve in +3 < 5.
Which graph shows the solutions?
Which of these sets of ordered pairs would define a line with a positive slope?
a. (5, 1) and (0, 5)
b. (2, 3) and (-4, 8)
c. (3, 6) and (5, 1)
d. (2, 3) and (7, 6)
Can someone pls pls help me on this question !!!!!
Answer:
c. y= 0.5(2)^x
Step-by-step explanation:
i hope this helps :)
A square wrestling mat has a side length of (4x - 1) feet.
Which expression represents the area of the mat?
Answer:
[tex](4x-1)^2[/tex]
Step-by-step explanation:
Area of a square = [tex]l^2[/tex]
If l = [tex](4x - 1)[/tex],
Then area = [tex](4x - 1)^2[/tex]
HOPE THIS HELPS
Please help I'm being timed ...
NO LINKS PLEASE
Answer:
I think you add them together
27 + 36 = 63
Step-by-step explanation:
HOPE THIS HELPS !!!!!!!!!!!!!!!!!
simplify[-3]-[-5] by using a number line
Answer: 2
Step-by-step explanation: Add −3 and 5
I Need Help Please!! (Geometry)
Answer:
3. 58°
4. 64°
5. 180°
Step-by-step explanation:
not completely sure bout number 5 but I think it's 180
100 points! Mhanifa please help. Look at the picture attached. I will mark brainliest!
Answer: BC = 54 <kjm=44
Step-by-step explanation:
1st 0ne-
if you look at it as 2 triangles with D being the shared side- I can determine that the angles are congruent (by SSA theorem)
so
6x=9x-27 (by corresponding parts of congruent Theorem)
-3x=-27
x=9
BC- 9(9)-27= 81-27=54
2nd one-
J bisects KJM
4x+6=3x+10
x=4
3(4)+10= 22
4(4)+6= 22
KJM= 22+22= 44
Answer:
Step-by-step explanation:
BD is the perpendicular disector of isosceles triangle DAC
AB=BC
6x=9x-27
3x=27
x=9
BC=9x-27=54
For triangle JKL and JML,
KL=ML
JL=JL
JK=JM from properties of right-angled triangle
So triangle JKL and JML are congruent
<KJL = <MJL
4x+6=3x+10
x=4
<KJL=4*4+6=22
Solve the equation for b 5= 3/2 (3) + b
Answer:
The answer is b = 1/2
Step-by-step explanation:
1) Use this rule: a/b × c = ac/b.
[tex]5 = \frac{3 \times 3}{2} + b[/tex]
2) Simplify 3 × 3 to 9.
[tex]5 = \frac{9}{2} + b[/tex]
3) Subtract 9/2 from both sides.
[tex]5 - \frac{9}{2} = b[/tex]
4) Simplify 5 - 9/2 to 1/2.
[tex] \frac{1}{2} = b[/tex]
5) Switch sides.
[tex]b = \frac{1}{2} [/tex]
Therefor, the answer is b = 1/2.
I don’t know wich boxes to choose
Answer:
C, D, F
Step-by-step explanation:
She walked 12 miles. Then she walked 1/4 that distance. "That distance" is 12 miles.
That means she walked 12 miles plus 1/4 of 12 miles.
She walked
12 + 1/4 * 12
You can factor out 12 from the expression above, and write it as
12(1 + 1/4)
Now you can do the addition in parentheses.
12(1 + 1/4) = 12(4/4 + 1/4) = 12(5/4)
Answer:
C, D, F
Answer:
12 + 1/4 x 12, 12 x 5/4, and 12 (1 + 1/4)
Step-by-step explanation:
To solve this, you need to add 1/4 of 12 to 12. 1/4 of 12 is 3, and 12 + 3 is 15. All of these equations are equal to 15, therefore they are all correct.
1/4 x 12 = 3 + 12 = 15
12 x 5/4 = 60/4 = 15
1 + 1/4 = 5/4
5/4 x 12 = 60/4 = 15
10. If eight men can dig 10 ditches in an hour. How many men would be
required to dig 16 ditches?
Answer:
12.8
Step-by-step explanation:
they can dig at a rate of 1.25
please help, will be greatful!
Answer:
y is 8
Step-by-step explanation:
First u do 13y-9y=4y
so you then have 4y-5=27
then you plus 5 to 27
u then have 4y=32
then divide 32 by 4
so you will get y=8
CAN SOMEONE WHO IS GOOD AT MATH HELP PLEESE !! ALSO PLEASE PUT ACTUAL ANWSERS I DONT OPEN SKETCHY FILES ON MY COMPUTER !!
Answer: where?
Step-by-step explanation:
Answer:
What do you need help with?
Step-by-step explanation:
A backpack is sold to Target for $25. If Target marks the price of the backpack up by 40%, how much do they sell it for?
Answer:
40 percent is 10 so It cost 35.
Step-by-step explanation:
algebra x = 3, y=2x and z=3y , whats z?
15,30, 60,... Find the 6th term.
Answer:
15, 30, 60, 120, 240, 480.
Step-by-step explanation:
You multiply the numbers by 2 to get to the next number.
For example, 15*2 is 30. 30*2 is 60. 60*2 is 120, etc..
Answer:
480
Step-by-step explanation:
In order to find the answer to this question you need to find the rule to the sequence and then add in till you get to the 6th term.
[tex]15,30,60[/tex]
Rule = each term doubles as it goes to the next term
[tex]15,30,60,120,240,480[/tex]
[tex]=480[/tex]
Hope this helps.
Just number 12 will mark brainly
C. 1/6 becuase there are six numbers you could possibly land on and it is facing one side up.
Answer:
1/6 becuase there are six numbers you could possibly land on and it is facing one side up.
Step-by-step explanation:
never disobay my math skills
Simplify. |-7(4) + 2(6)|
Answer:
16
Step-by-step explanation:
Independent practice question x/8-1/2=-7/2
Answer:
x = -24
Step-by-step explanation:
If you are to solve for x then multiply everything by 2 so
[tex]\frac{2x}{8}[/tex] - 1 = -7 now multiply everything by 8 to get rid of the fraction
2x - 8 = -56, solve for x so 2x = -48 so x = -24
Someone pls give me the answer?
Answer:
c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Please help!! I'll mark BRAINLIEST
Answer: C: 2(n+5)
Step-by-step explanation:
Answer:
2(n+5)Step-by-step explanation:
For finding we go from
Back to front that is,
First,
Sum of a number and 5 that is = n + 5
Then,
Twice of their sum that is = 2(n+5)
Hence,
Option C that is 2(n+5) (Ans)
The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?
Answer:
Step-by-step explanation:
profit=S.P.-C.P=80-50=30
Profit or percentage markup=30/50×100=60%
COMPARE The maximum distance traveled by the space shuttle can be determined using
the equation d = 4.8s, where d is the distance, in miles, and sis the number of seconds.
The table below shows the distance traveled by the Apollo 10 astronauts returning from
the moon.
Please help i will give you the brainliest
Answer:
the first option.
Step-by-step explanation:
correct me if I'm wrong, I don't know if this is right, but that's a method I think you use
four consecutive integer numbers that add up to 2. What are the numbers?? -HELP PLS
Answer:
-1, 0, 1, 2
Step-by-step explanation:
-1 + 0 + 1 + 2 = 2
Answer:
Step-by-step explanation:
-1,0,1,2
give me brainliest pls
What is the distance, in feet, that the box has to travel to move from point A to point C?
im just begin lazy ok
Answer:
I am being lazy too
Step-by-step explanation:
81 x 1 = 81
81 x 2 = 162
81 x 3 = 243
81 x 4 = 324
81 x 5 = 405
81 x 6 = 486
81 x 7 = 567
81 x 8 = 648
81 x 9 = 729
81 x 10 = 810
81 x 11 = 891
81 x 12 = 972
81 x 13 = 1053
81 x 14 = 1134
81 x 15 = 1215
81 x 16 = 1296
81 x 17 = 1377
81 x 18 = 1458
81 x 19 = 1539
81 x 20 = 1620
81 x 21 = 1701
81 x 22 = 1782
81 x 23 = 1863
81 x 24 = 1944
81 x 25 = 2025
81 x 26 = 2106
81 x 27 = 2187
81 x 28 = 2268
81 x 29 = 2349
81 x 30 = 2430
81 x 31 = 2511
81 x 32 = 2592
81 x 33 = 2673
81 x 34 = 2754
81 x 35 = 2835
81 x 36 = 2916
81 x 37 = 2997
81 x 38 = 3078
81 x 39 = 3159
81 x 40 = 3240
81 x 41 = 3321
81 x 42 = 3402
81 x 43 = 3483
81 x 44 = 3564
81 x 45 = 3645
81 x 46 = 3726
81 x 47 = 3807
81 x 48 = 3888
81 x 49 = 3969
81 x 50 = 4050
in class 19%of the 25 students did not passed the test .how many students passed the test
Answer:
4
Step-by-step explanation:
In which of the following situations would finding the surface area of an object be the most applicable?
Hi, you've asked an incomplete question. However, I provided a brief explanation about surface areas.
Explanation:
Surface area is a term commonly used in mathematics, and other branches of science, and it basically refers to a calculation of the total space that an object occupies.
For example, you can find the surface areas of a cuboid using the formula:
[tex]6s^{2}[/tex] where s= side length.