The probability of a fair coin landing heads-up in one toss is 1/2.If a coin is
tossed 20 times, how many times would the coin be expected to land heads-
up?
20
1
10
2
Answers
Answer:
10/20 because then it's still a 50 50 chance so the answer it 10
Related Questions
Hey all pls help it is urgent
Answers
Answer:
Exact Form:
32/5
Decimal Form:
6.4
Mixed Number Form:
6 2/5
Step-by-step explanation:
your gonna wanna if possible cancel the common factors.
What type of triangle (right, obtuse, acute) do the angles 5,5,5 form?
Answers
Answer:
acute
Step-by-step explanation:
5 is lower than a 90* angle
if this is wrong I'm very sorry.
What is the COMMON DIFFERENCE of the following sequence: 10, 0, -10,
-20.... (Hint: USE ONLY THE NUMBER IN YOUR ANSWER)
*
Answers
Answer:
option a
sorry if im wrong
Step-by-step explanation:
1
2
3
4
5
6
7 = 7 + 8 = 9 - 10 = 11
help please. 10 points to who help me
Answers
9514 1404 393
Answer:
64/109 ≈ 0.5872
Step-by-step explanation:
41 + 23 = 64 of the events have outcome E.
An additional 35 + 10 = 45 do not.
The probability of an outcome of E is 64 out of a total of 64+45 = 109 events.
P(E) = 64/109 ≈ 0.5872
The scale factor from drawing 1 to drawing 2 is ___ %
Please help! Fill in the blank
I will give brainliest
Answers
Answer:
ghggyffxvbvucfyiyiyxozhlhzguvufcbi8
MATH, HELP ASAP
TWO STEP EQUATIONS
What is three times the sum of a number and five times the number is thirty six what is the number
Answers
Answer: 3(n+5n) = 36 n = 2
Step-by-step explanation:
Distribute 3: 3n+ 15n = 36
Add the coefficient of variable: 18n= 36
Divide by 18 on both sides: n = 2
Determine the value of x.
Answers
Answer:
1.6 is your answer
Step-by-step explanation:
50 divided by 30=1.6
1.6x30=48 round=50
have a great day! hope this helped!
Answer:
30
Step-by-step explanation:
If u do the math and factor it out its 30
The functions f(x) and g(x) are shown on the graph.
f(x) = x²
What is g(x)?
Answers
The required function g(x) is given as g(x) = 3x².
What are functions?Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
Here,
In the graph, we have a graph of two functions,
f(x) = x² and there is a point (2, 12) located on the curve of function g(x)
we have to determine the function g(x).
Now,
Now, as g(x) is scaled function of f(x)
g(x) = k f(x) - - - - (1)
At x = 2
g(2) = 12
f(2) = 4
Put x = 2 in question 1,
g(2) = k(f(2))
12=k*4
k = 3
Substitute k in equation 1 we get,
g(x) = 3x²
Thus, the required function g(x) is given as g(x) = 3x².
Learn more about function here:
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Hey, what is 197 x 2245?
Answers
Answer:
442265
Step-by-step explanation:
Answer:
yall could have not left me you know
Step-by-step explanation:
i mean at least you could have said bye but you didn't i still havn't found friends half as good as yall
What is the result of converting 14 inches into centime
ters?
Answers
Answer:
35.56cm
Step-by-step explanation:
convert 14 inches to cm
How can you use the DISTRIBUTIVE PROPERTY solve the equation: 3(x-4) = 24 ? *
Answers
By using the Distributive Property, you would multiply 3 into the parenthesis (3 · x and 3 · -4)
3(x - 4) = 24
3x - 12 = 24
Then, you would solve like any normal one-step equation.
3x - 12 = 24
+12 +12
__________
3x 36
__ = __
3 3
x = 12, which is your final solution.
If you need any further explanations, please ask me :)
Answer:
3(x - 4) = 24 This is the normal equation.
3x - 12 = 24 Next, use the distributive property and multiply everything in the parentheses by the number on the right of the parentheses, which in this case is 3. 3 times x is 3x, and remember to use any symbols to the left of the numbers and use as if it was a negative. 3 times -4 -12. Get rid of the parentheses and replace with the new numbers, which are 3x and -12.
3x = 36 I think you are solving for X so that's what i'm doing.
x = 12
What rule is shown by this input/output table and coordinate plane?
A. add 3
B. subtract 2
C. divide by 3
D. multiply by 2
Answers
Answer:
add 3
Step-by-step explanation:
3+3=6 4+3=7 5+3=8
and on the graph when u graph them your answer is A.
Hope this helps:)
Pls help me with the questions.
Answers
Answer:
E, 21.
Step-by-step explanation:
7 multiplied by 3 is 21.
I also need help on this
Find the missing angle
Answers
the missing anigal i a 82 degrez trangal
180 - 156 = 24°
180 - (24 + 125) = 31°
The answer is 31°
(e) 3x2 + 10x + 3 by x + 3
Answers
Answer:
(3x+1)(x+3) is the factorised form for the expression.
Step-by-step explanation:
:3
x
2
+
10
x
+
3
We can Split the Middle Term of this expression to factorise it.
In this technique, if we have to factorise an expression like
a
x
2
+
b
x
+
c
, we need to think of 2 numbers such that:
N
1
⋅
N
2
=
a
⋅
c
=
3
⋅
3
=
9
and,
N
1
+
N
2
=
b
=
10
After trying out a few numbers we get:
N
1
=
9
and
N
2
=
1
9
⋅
1
=
9
, and
9
+
(
1
)
=
10
3
x
2
+
10
x
+
3
=
3
x
2
+
9
x
+
1
x
+
3
=
3
x
(
x
+
3
)
+
1
(
x
+
3
)
(
3
x
+
1
)
(
x
+
3
)
is the factorised form for the expression.
is the factorised form for the expression.
2 1/6 x 4 1/2 Solve the problem AND explain your steps
Answers
Explanation: 13/6 x 9/2
(reduce) 13/2 x 3/2
(Multiply 13/2 x 3/2)
39/4
(Reduce again) 9 3/4 or 9.75
Hope this helps
x/4 = 2
what is the answer to x?
Answers
Answer:
8/4=2
Step-by-step explanation:
4x2=8
explanation: You multiply both sides of the equation by 4 and get 4x x/4=4x2
you cancel out the 4s & 4x2 =8
Mr. Tan had 45 kilogram of rice. He gave 13.56 kg to his brother and 5. 78 kg to his neighbor Ryan. How many kilograms of rice was left for him
Answers
Answer:
13.56
+5.78
_____
19.34
54
-19.34
_____
25.66
checking:
25.66
+19.34
______
Step-by-step explanation:
WILL MARK YOU BRAINLIEST
Answers
Answer:
ABCD is a rhombus => AC is perpendicular with BD
=> AC = 2(2n + 5) = 30
<=> 2n + 5 = 15
=> n = 5
with n = 5 => AC/2 = 15
BD/2 = 4.5 - 3 = 17
BC² = (AC² + BD²)/4 = 514/4 = 128.5
=> BC = 11.34
Answer:
Step-by-step explanation:
The question is what does 2n + 5 represent? Is it 1/2 the line or all of AC. There seems to be a run on ambiguous questions. I'm going to assume that 2n + 5 is AC -- all of it. And 4n-3 is all of BD.
AC = 30
2n + 5 = 30 Subtract 5 from both sides.
2n = 30 - 5
2n = 25 Divide by 2
n = 25/2
n = 13.5
====================
BD = 4n - 3
BD = 4*13.5 - 3
BD = 54 - 3
BD = 51
Write an exponential function for these two pair of given points: (2,4) (3,2).
Answers
Answer:
[tex]16*(\frac{1}{2})^x[/tex]
Step-by-step explanation:
our equation will look something like this
abˣ=y
We can write the two equations
4=ab²
and
2=ab³
we can divide the second equation by the first and get
[tex]\frac{2}{4}=\frac{ab^3}{ab^2}\\\\=.5=b\\[/tex]
Now that we know what b equals we can plug that value in and solve for a
[tex]4=a*.5^2\\\\a=16[/tex]
What’s the radius of a circle is 6 inches what’s the diameter
Answers
Answer:
d=12in
Step-by-step explanation:
solve the inverse for k
2(k-12)-5(k+2)<-9k+4k
Answers
_____________
A housekeeper had 3/7 of a spray bottle of a cleaning solution. Used 1/9 of the solution in a day . How much of the bottle did she use
Answers
Answer:
27/7 or 3 6/7
Step-by-step explanation:
3/7 divided by 1/9 = 27/7
rounded to 3
Have a nice day
The 0.317 spray bottle did she us.
It is required to find how much of the bottle did she use.
What is fraction?A fraction having whole numbers for the numerator and denominator. A fraction is a number of the form: ab where a and b are integers and b≠0. It represents the division of two numbers.
Given:
We know that total =1
For a cleaning solution=3/7 of a spray bottle
Used=1/9
According to given question we have,
Subtract the fractions
3/7 - 1/9
Calculate the difference,
=20/63
=0.317
Therefore, the 0.317 spray bottle did she us.
Learn more about fraction here:
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The area of Mrs. Rush's rectangular room is 3x2+31x+36 . Find the length, width and perimeter.what is it?
Answers
Answer:
The chosen topic is not meant for use with this type of problem. Try the examples below.
Step-by-step explanation:
l=9
w=4
l=5
w=5
l=5
w=4
I think its right because I tried ok.
Solve the following system of equations using SUBSTITUTION METHOD.
SHOW YOUR WORK for full points. Write your answer as an (x,y) point.
x = 4y - 1
3x + 2y =39
Answers
3x−12y=−3
3x+2y=39
Subtract the 2nd row from the 1st row.
−14y=−42
Solve for y (-14y=-42)
Divide both sides by −14.
Y= -42/-14
Two negatives make a positive.
Y=42/14
Simply 42/14 to 3
Y=3
Sub y=3 into both equations
3x-12x3=-3
X=11
Therefore,
X =11
Y=3
Holly has a hard drive that she uses to store her digital music . The hard drive has 500-megabyte total storage capacity, but only 7/10 of the hard drives capacity is free. What amount of hard drive in the megabytes had Holly used to store her digital music? A. 200 megabytes
B. 350 megabytes
C. 150 megabytes
D. Not here
please help guys i’ll be giving points and BRAINLIEST. thank you so much love y’all!!
Answers
Answer: Your answer would be B
350 megabytes
Step-by-step explanation:
500 divided by 10 = 50.
50 x 7 = 350
Hope this helps ^w^
what’s 3-4/7 equal as a fraction?!
Answers
Answer:
17/7 or 2 3/7
Step-by-step explanation:
3 is the same as 21/7. Subtract 21/7-4/7 to get 17/7.
Hope it helps!
Hey there. Hope you're having a pleasant morning/evening and wherever else in between. The answer of 3-4/7, as far as I can remember, is -1/7.
Which are not dimensionsions of a Right Triangle
A. 3cm , 4cm, 5cm
B. 5cm, 12cm,
C. 9cm , 12 cm , 15cm ,
D. 9cm , 12cm ,15cm
(Pythagorean Theorem)
Answers
Answer:
C
Step-by-step explanation:
4 squared +8 squared doesnt equal 12 squared
Theo earned £15400 last year and spent 6% of his money on making home improvements. Find how much money Theo spent on home improvements last year.
Give your answer to the nearest penny.
Answers
Answer:
15400 ÷ 6/100
Step-by-step explanation:
next step do yourself
I hope it will help you
Solve the equation. Check your solutions.
|4b+4|=|2b+8|
Answers
Answer:
b = 2 or b = -2Explanation:
|4b + 4| = |2b + 8|
Solve absolute value
|4b + 4| = |2b + 8|
Either 4b + 4 = 2b + 8 or 4b + 4 = −(2b + 8)
4b + 4 = 2b + 8 (Possibility 1)
4b + 4 − 2b = 2b + 8 − 2b (Subtract 2b from both sides)
2b + 4 = 8
2b + 4 − 4 = 8 − 4 (Subtract 4 from both sides)
2b = 4
2b / 2 = 4 / 2 (Divide both sides by 2)
b = 2
4b + 4 = −(2b + 8) (Possibility 2)
4b + 4 = −2b − 8 (Simplify both sides of the equation)
4b + 4 + 2b = −2b − 8 + 2b (Add 2b to both sides)
6b + 4 = −8
6b + 4 − 4 = −8 − 4 (Subtract 4 from both sides)
6b = −12
6b / 6 = -12 / 6 (Divide both sides by 6)
b = -2
b = 2 or b = -2