Liz flips a coin 30 times. The coin lands heads up 21 times and tails up 9 times. Complete each
statement.
Answers
Answer:
[tex]Pr = 0.50[/tex]
Step-by-step explanation:
Given
[tex]n = 30[/tex]
[tex]H = 21[/tex]
[tex]T = 9[/tex]
See attachment for complete question
Required
[tex]P(H)[/tex]
The question requires that we calculate the theoretical probability of landing on the head.
This means that, we have to ignore the given data, and we use the following
[tex]S =\{H,T\}[/tex] --- sample space
[tex]n(S) = 2[/tex] --- sample size
[tex]n(H) = 1[/tex] --- occurrence of Head
So, the theoretical probability is:
[tex]Pr = n(H)/n(S)[/tex]
[tex]Pr = 1/2[/tex]
[tex]Pr = 0.50[/tex]
Related Questions
The first row of a theater has 16 seats. There are 3 more seats in each row thereafter. How many seats are in the 25th row/
Answers
Answer: 88
Step-by-step explanation:
Given
The first row has 16 seats
then there are 3 more seats in each row
this follows an AP with the first term [tex]a=16[/tex] and common difference [tex]d=3[/tex]
So, no of seats in the 25 th row is
[tex]\Rightarrow a_{25}=a+24d\\\Rightarrow a_{25}=16+3\times 24\\\Rightarrow a_{25}=88[/tex]
Thus, there are 88 seats in the 25 th row
When the function is given in vertex form y = a(x-h)? + k, how is the vertex found?
a. (kh)
b. (x,y)
c. (h,k)
d. (y,x)
Answers
Answer:
c. (h, k)
Step-by-step explanation:
whats the quadratic curve of best fit for the data. estimate what the value of will be when = −4.
(−3,2), (0,5), (1,7.3), (−1,3.3), (−6,5), (−7,7.3)
Answers
Answer:
64 is 4 times the difference between Sarah's age, a, and 44Assume Sarah is older than 44
Step-by-step explanation:
Adam is helping make mashed potatoes for Thanksgiving. He plans to add 4 fluid ounces of heavy cream to his potatoes. If he buys 1-pint carton, how many fluid ounces will he have left?
Right answer gets brainliest!! :)
Answers
Please help me with this.
Answers
Answer: Angles: 42°, 114°, 24°, 30°, 150°.
Step-by-step explanation:
What is 2 2/3 in radical form step by step
Answers
The lateral area of a cylinder is 100pi in^2. If its dimensions are reduced to one-fifth their original length, what would its new area be?
Answers
Answer:
4pi in^2
Step-by-step explanation:
Lateral surface area of a cylinder = 2πrh
π = pi
r = radius
h = height
Let me illustrate with an example
A cylinder has the following dimensions
r = radius = 20
h = height = 10
lateral area = 2 x π x 20 x 10 = 400π
If dimensions are reduced to one-fifth their original length, new dimensions are
r = radius = 20 x 1/5 = 4
h = height = 10 x 1/5 = 2
New lateral area = 2 x 4 x 2 x π = 16π
change in lateral area = 400π / 16π = 25
If dimensions are reduced by 1/5, lateral area would reduce by 25
100 pi / 25 = 4
I don't have a clue! I WILL MARE BRAINLIST
Answers
Answer:
r= 5
Step-by-step explanation:
because 5^3 = 125 or 5*5*5 = 125
solve for the value of y
Answers
Answer:
y=8
Step-by-step explanation:
the sum of the three angles is 180
57 + 90 + 5y-7 = 180
5y + 140 = 180
5y = 40
y = 8
Which graph represents this table of an arithmetic sequence?
Answers
Answer:
the x axis contains the arithmetic sequence
Please help What is the value of x. Look at picture.
Answers
Answer:
x = 50
Step-by-step explanation:
3x - 10 and 2(x + 10) are vertical angles and congruent , so
3x - 30 = 2(x + 10)
3x - 30 = 2x + 20 ( subtract 2x from both sides )
x - 30 = 20 ( add 30 to both sides )
x = 50
The school library has 300 books on the topic of
sports. Students have checked out seventy-four
of those books. How many books on the topic
of sports still remain in the library?
Answers
Step-by-step explanation:
226 sports book have a good day
Simplify the expression, write in expanded form and exponential form.
Answers
Answer:
225 x a^4
Step-by-step explanation:
find YZ pls fast correct
Answers
Answer:
44Step-by-step explanation:
According to intersecting chords theorem:
21(2x - 6) = 30(x + 1)42x - 126 = 30x + 3042x - 30x = 126 + 3012x = 156x = 156/12x = 13Find the value of YZ:
YZ = 30 + 13 + 1 = 44[tex]\huge\text{Hey there!}[/tex]
[tex]\large\textsf{21(2x - 6) = 30(x + 1)}[/tex]
[tex]\large\textsf{21(2x) + 21(-6) = 30(x) + 30(1)}[/tex]
[tex]\large\textsf{21(2x) = 42x}[/tex]
[tex]\large\textsf{21(-6) = -126}[/tex]
[tex]\large\textsf{30(x) = 30x}[/tex]
[tex]\large\textsf{30(1) = 30}[/tex]
[tex]\large\textsf{42x - 126 = 30x + 30}[/tex]
[tex]\large\text{Put ALL your LIKE TERMS TOGETHER}[/tex]
[tex]\large\text{NEW EQUATION: \textsf {42x - 30x = 126 + 30}}[/tex]
[tex]\large\textsf{42x - 30x = 12x}[/tex]
[tex]\large\textsf{126 + 30 = 156}[/tex]
[tex]\large\text{NEW EQUATION: \textsf{12x = 156}}[/tex]
[tex]\large\text{DIVIDE 12 to BOTH SIDES}[/tex]
[tex]\mathsf{\dfrac{12x}{12}=\dfrac{156}{12}}[/tex]
[tex]\large\text{CANCEL out: } \mathsf{\dfrac{12}{12}}\large\text{ because that gives you 1}[/tex]
[tex]\large\text{KEEP: }\mathsf{\dfrac{156}{12}}\large\text{ because that helps you solve for your the given equation} \\\\\large\text{and your YZ result}[/tex]
[tex]\mathsf{\dfrac{156}{12}=\bf 13}[/tex]
[tex]\large\text{NEW and FINAL EQUATION: \textsf{30 + 1 + 13}}[/tex]
[tex]\large\textsf{30 + 1 + 13}[/tex]
[tex]\large\textsf{30 + 1 = \bf 31}[/tex]
[tex]\large\textsf{= 31 + 13}[/tex]
[tex]\large\textsf{= \bf 44}[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf YZ = 44 }}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
can someone please answer all 3 parts to this question with work? will give brainliest
Answers
A circular sheet was cut to make cone without a base of slant height equal to 7 m. If the net of the cone has a perimeter of 47 m, what percentage of the circular sheet of paper was used to make the cone?
a. 80%
b. 25%
c. 75%
d. 60%
Answers
Answer:
75%
Step-by-step explanation:
See above to see question
Answers
Answer:
A)65°
B)110°
C)50°
D)55°
E)80°
Step-by-step explanation:
Since the angle on a straight line should be 180, you simply subtract the given angles from 180
hope I helped
At local bakery Jonah decorated 3 cakes at a time. Ellen decorated 7 at a time. If they ended up decorating the same number of cakes by the end of the day, what is the smallest number of cakes that each must have decorated?
Answers
Yan is climbing down a ladder. Each time he descends 4 rungs on the ladder, he stops to see how much farther he has to go. If Yan made 8 stops with no extra steps, which expression best shows another way to write the product of the number of ladder rungs that Yan climbed?
Answers
Answer:not A
Step-by-step explanation:
Answer:
stop waiting and do the next question
Step-by-step explanation:
common sense
Choose the best selection for the
quadrilateral with vertices at the
following points:
(0,0), (0,3), (4,0), (4,3)
Answers
Answer: rectangle not sure tho
Step-by-step explanation:
Answer:
Step-by-step explanation:
i chose B:square, i out in the points and that what shape came up. srry if im wrong
how do i do c? helppppppppppppppp
Answers
Answer:
Step-by-step explanation:
3(m - n + 2) + 6 - m
Answers
Step-by-step explanation:
WILL MARK BRAINLIEST
Let Events A and B be described as follows:
P(A) = doing yard work
P(B) = it raining
The probability that it will rain this weekend is 68% The probability of doing yard work this weekend and it raining is15%. If the probability of doing yard work is 53%, are doing yard work and it raining independent?
Answers
A(n) _______ is a mapping that does not change the size of the original figure.
A. Isometry
B. Mapping
C. Image
D. Preimage
Answers
Answer:
A(n) isometry is a mapping that does not change the size of the original figure.
Answer:
Isometry
Step-by-step explanation:
Isometry is a mapping that does not change the size of the original figure.
Jane found 5 seashells on the beach. Ruby found twice as many as Jane. How many shells did they find together?
Answers
Answer:
They found 15 shells
Step-by-step explanation:
First, multiply. 5 × 2 = 10
Then, add. 5 + 10 = 15
Lastly, have a great day!
Awnser and show your work <3
Answers
Answer:
-14
Step-by-step explanation:
isolate x's on one side so subtract 8.5x and add 1 on both sides
[tex]-14 = 1x[/tex]
simplifies to
x = -14
Find the missing length indicated.
Your answer
Answers
Answer:
x = 12
Step-by-step explanation:
For the middle size triangle
short leg = x
long leg = (25 - 9) = 16
ratio = x/16
For the small triangle
short leg = 9
long leg = x
ratio = 9/x
Similar triangles are proportional so
Set the ratios equal
x/16 = 9/x
Cross multiply
x² = 144
Take the square root of both sides
x = 12
may someone help me please and thank you, how do u find an equivalent fraction?? :)
Answers
Here are the ways that you can find an equivalent fraction:
Multiplying or dividing both top and bottom by the same amount. You only multiply or divide, never add or subtract, to get an equivalent fraction. Only divide when the top and bottom stay as whole numbers.
Answer:
You can make equivalent fractions by multiplying or dividing both top and bottom by the same amount. You only multiply or divide, never add or subtract, to get an equivalent fraction.
Step-by-step explanation:
HELP WILL GIVE BRAINLIEST!!!!!
Write an inequality for the situation.
Karen has at least 7 dresses.
Answers
Answer:
At least 7 < She had 15
I WILL FIVE BRAINLESS TO THE PERSON THAT ANSWER THIS CORRECTLY
Even wants to make a kneeling pad cushion for when he is this a surface area or volume problem. How much
gardens for long periods of time. It will have the fabric will he need?
Gimensions shown. How much fabric should he buy to surface area, 336 in
cover the cushion?
surface area, 440 in 2
volume, 336 in
volume, 440 in?
12 in
2n
14 in
Answers
Answer:
440
Step-by-step explanation:
this is the formula 2(wl+hl+hw)
Answer:
44 in2 your welcom
Step-by-step explanation: