Answer:
12 two
24 and 42 represent one combination, but 2 permutations. Thus, the number of two-digit numbers that can be made with the digits 2, 4, 6, and 8 is: Therefore, 12 two-digit numbers can be made with the digits 2, 4, 6, and 8.
Step-by-step explanation:
please mark this answer as brainliest, leave a 5-start rating, and give a thanks
The number of 2-digit numbers can be formed from the digits 4, 6, and 8 is 18.
What is the Permutations?Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set. The symbol nPr is used to denote the number of permutations of n distinct objects, taken r at a time.
The given digits are 4, 6 and 8.
We know that, P(n, r)= n!/(n-r)!
Here, n=3 and r=2
Now, 3!/(3-2)!
= 3×2
= 6
Using C(n, r)= n!/r!(n-r)!
Now, 3!/2!(3-2)!
= 3
So, 6×3
= 18
Therefore, the number of 2-digit numbers can be formed from the digits 4, 6, and 8 is 18.
To learn more about the permutation visit:
https://brainly.com/question/3867157.
#SPJ6
78^(4/9) in radical form
Answer:
\sqrt[9]{(78)} {}^{4}
9
(78)
4
What is the probability of drawing a club or a Jack from a deck of cards?
Answer:
94.5%
Step-by-step explanation
Emma and Jon were writing a system of equations to describe the scenario below. Who do you believe correctly wrote the system of equations. What was the other person’s error?
Mrs. Delgado purchased notebooks at 2 for $5 and pens
at $2 per package. She spent $19 for a total of 8 items.
How many notebooks and pens did she buy?
Answer:
Mrs. Delgado purchased 6 notebooks and 2 packages of pens.
Step-by-step explanation:
Given that Mrs. Delgado purchased notebooks at 2 for $ 5 and pens at $ 2 per package, and she spent $ 19 for a total of 8 items, to determine how many notebooks and pens did she buy the following calculation must be performed:
5/2 = 2.5
8 x 2.5 + 0 x 2 = 20
6 x 2.5 + 2 x 2 = 19
Therefore, Mrs. Delgado purchased 6 notebooks and 2 packages of pens.
Which would be the best method to use to solve the following equations? Explain your reasoning.
Use each method only once.
Factoring
Square root Property
Completing the square
Quadratic Formula
A. 3x^2-192=0
Method:
Why:
B. x^2-x-6=0
Method:
Why:
C. x^-6x-7=0
Method:
Why:
D. x^2-17x-7=0
Method:
Why:
A. square root property
[tex]3x^2-192=0\\x^2-66=0\\x^2=66\\x= -\sqrt{66} or \sqrt{66}[/tex]
it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format
B. factorising
[tex]x^2-x-6=0\\x^2+2x-3x-6=0\\(x+2)(x-3)=0\\x+2=0 and x-3=0\\x= -2 \\x= 3[/tex]
i just felt like this was easier to factorise than the other 2 options left
C. Completing the square
[tex]x^2-6x-7=0\\(x-3)^2=0\\x= -1\\x= 7[/tex]
same reason personal preference
D- Quadratic
[tex]x^2-17x-7=0\\x=\frac{-(-17)+\sqrt{(-17)^2-4(1)(-7)} }{2(1)} \\x=\frac{-(-17)-\sqrt{(-17)^2-4(1)(-7)} }{2(1)}\\x=17.4\\x=-0.402[/tex]
the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal
Solve for X help pleassee
COMPOUND INTEREST:
You recently found out that your great-aunt passed away. Your aunt had decided to leave you an inheritance of 2,800,000, however, the will stipulates that this inheritance must remain in an investment account for the next ten years, with daily compound interest at a rate of 20% in exchange for taking care of your 34 cats. you will not be able to access this money until after this ten year period.
CAN SOMEONE HELP ME PLEASE
Answer:
You will have $17,336,862 by the end of the ten years
Step-by-step explanation:
The equation for compound interest is the amount(1+rate)^time
fill out the equation for 2,800,000(1.2)^10
2,800,000(6.19173642)
17336862
You will have $17,336,862 by the end of the ten years
a penny is dropped from a height of 144 ft. Calculate the time between when the rock was dropped and when it landed. If we choose "down" as positive and ignore air friction, the function is h(t) = 16t^2 - 144.
answers
t = 9seconds
t = 3 seconds
t = 18 seconds
t = 10 seconds
Answer:
The time of fall is 9 seconds
Step-by-step explanation:
We are asked to find the time between when the penny was dropped and when it landed.
To do this, we have to start with what we are given and see how we can relate it to find what we are looking for.
From the problem, we are given the equation which represents the height which the penny travels as it falls. It is given by
[tex]h(t) = 16t^2 - 144.[/tex] ----------- equation 1
in addition to that, we are also given that h = 144ft at the end of the fall; that is, where t = t max, and h = hmax
Hence, it is safe to say that at the end of the fall, that the heigh is no more changing. This means that dh/dt = 0
We can now differentiate equation 1 above to get
h max = 16t - 0 ------------- equation 2
recall that h max = 144
plugging the value of h max into equation 2, we have
144 = 16t
t = 9 seconds
Therefore the time of fall is 9 seconds
Answer:
t= 3 seconds
Step-by-step explanation:
I took the quiz and this is the answer
can someone help meeeee plsease porfuis
Answer:
wal given south given signal pansy
Answer:
wal given south given signal pansy
Step-by-step explanation:
Trust me! Good luck!
Have a good day!
Hope this helped :)
kelly bought some stuff animals for $6.49 each. she also got a box of chocolate for $8.32. she payed a total of 27.79 write an equation to find how many stuffed animals kelly purchased (use s for the variable)
Answer:
Step-by-step explanation:
first, i'm pretty sure that there's only one box of chocolates as stated in the problem, but if there's more i'm sorry.
you can use this equation:
6.49x + 8.32=27.79
remember not to use dollar signs in the equation! only use dollar signs in your answer - so don't use dollar signs now, unless specified by your teacher or guider ;)
hope this helped!!!
What happens to the mean of the data set shown below if the number 20 is added to the data set?
Answer: The data set is missing therefore I will give you a more general answer
answer : The mean value will shift ( to the right ) by 20
Step-by-step explanation:
when a number is added to each data value in a data set the mean value will shift ( to the right ) likewise the mode, and Median by the same amount that was added to the data set . but the range and IQR will remain unchanged
Answer:
The answer is C
Step-by-step explanation:
If ° (3n-4)2 * = 310 then n= ?
Answer:
n=53
Step-by-step explanation:
(3n-4)2
distribute the 2
you get 6n-8
plug in 53 into n 5(53)-8 and then you times 6 and 53 and get 318 subtract 8 from that and you get 310
I need help answering
Answer:
It is the fourth choiceStep-by-step explanation:
[tex] \csc(a) = \frac{1}{ \sin(a) } \\ \sin(a) = \frac{15}{25} \\ \\ \csc(a) = \frac{1}{ \frac{15}{25} } \\ \\ \csc(a) = \frac{25}{15} [/tex]
So no one of the above
(x3 + x4– 3x5– 8) + (-9x5 + x2)
Answer:
The answer is 9x-68 :)
Step-by-step explanation:
If (t+10)+t=t+20, what is the value of t?
Answer:
t = 10
Step-by-step explanation:
(10+10)+10 = 10+20
30 = 30
t = 10
Answer:l 3t + 30
Step-by-step explanation: eliminate redundant parathrse
A particle travel 270km in 30 hours. Find speed of particle in km/hr
Answer: 9 km/hr
Step-by-step explanation:
270/30 or 270 ÷ 30
km/hr
Answer: 9
Step-by-step explanation:
MARKING BRAINLIEST!!!!!
Answer:
Water Stats
The average family can waste 180 gallons per week, or 9,400 gallons of water annually, from household leaks. That's equivalent to the amount of water needed to wash more than 300 loads of laundry. Household leaks can waste approximately nearly 900 billion gallons of water annually nationwide.
Step-by-step explanation:
THATS FOR NUMBER 2
Answer:
19.3 Gallons
Step-by-step explanation:
83066/1000 to get back to liters
83.066 Liters/4.54=19.3 Gallons
PLEASE HELP FAST
Part A: Find the value of c that will result in a perfect square trinomial.
x2 + 18x + c = 25 + c
Answer:
c=81
Step-by-step explanation:
Take half of b: 18/2=9
Square the result: 9²=81
This is your value of c that will result in a perfect square trinomial, which is c=81. If you were to keep going, you would do the following:
x²+18x+81=25+81
x²+18x+81=106
(x+9)^2=106 <-- Final simplification
(x+9
Answer:
c=81
Step-by-step explanation:
pls give me banliest
There is a total of 45 playoff games over c days. Write the expression of the number of playoff games happening each day.
Answer:
[tex]\frac{45}{c}[/tex]
Step-by-step explanation:
Playoff games played = 45
Number of days taken for the playoff games = c days
Number of playoff games played in one day = [tex]\frac{\text{Number of games played}}{\text{Total number of days}}[/tex]
= [tex]\frac{45}{c}[/tex]
Therefore, expression for the number of playoff games played in a day = [tex]\frac{45}{c}[/tex]
NEED ASAP PLEASE HURRY
What is the length of segment AC?
Answer:
8 units
Step-by-step explanation:
Step-by-step explanation:
[tex]C = ( - 6,5) \: and \:A = (3, - 1) \\ length \: AC = \sqrt{ {(x _{2} - x _{1}) }^{2} + {(y _{2} - y _{1})}^{2} } \\ AC = \sqrt{ {(3 - ( - 6))}^{2} + {( - 1 - 6)}^{2} } \\ AC = \sqrt{(81 + 49)} \\ AC = \sqrt{130} \\ AC = 11.4[/tex]
Hey! Please help me with this kahn question
thanks!
Answer:
[tex]z^{11}[/tex]
Step-by-step explanation:
add 5 and 6 because they have the same base z
In ΔIJK, the measure of ∠K=90°, the measure of ∠I=41°, and IJ = 2 feet. Find the length of KI to the nearest tenth of a foot.
Answer:
7.5 feet
Step-by-step explanation:
Hope it helps(:
Please help me out
Find the area of the triangle.
Answer:
66cm²
Step-by-step explanation:
The figure shown is actually a parallelogram
The area of a parallelogram can easily be calculated by multiplying the base length by the height
For this parallelogram the height given is 6 cm and the base length given is 11cm
so area = 6 * 11
6 * 11 = 66
hence the area of the parallelogram is 66cm²
how many solutions does 3(4x - 2) = -12x - 6 have
HELP DUE IN 10 MINS!
x=??
Answer:
x = 3°Step-by-step explanation:
S and T are supplementary angles
m∠S + m∠T = 180°105° + 24x + 3° = 180°24x = 180° - 108°24x = 72°x = 72°/24x = 3°SOMEONE DO THIS QUICKLY! ITS DUE IN AN HOUR
Answer:
10. Y=151°
Z=29°
X=29°
11.
y: 61°
X: 151°
z:119°
12.
y:125°
x:55°
z:55°
13.63°
14.115°
15.131°
16.X=13°
17.X=4°
18.X=21°
19= X=7°
20= X=12°
21= X=9
I'VE BEEN ASKING THIS FOR A LONG TIME PLEASE I WILL MARK BRINLIEST! I acciently clicked a random answer, but i do not know if its the answer.
Answer:
1/3 :)
Step-by-step explanation:
For a National Junior Honor Society Induction Celebration, Ahmed is renting tables and chairs. He wants to have only tables for 4 and tables for 2. The total number of people that can be seated in the school cafeteria with these tables is 80. Describe some possible combinations (at least 2) of 4-seat tables and 2-seat tables that will seat 80 customers. Explain how you found them (you can show the equations; using numbers instead of words).
There are different combinations you can do.... for example
10 tables of 4 and 20 tables of 6
or
25 tables of 4 and 10 tables of 6
so Im not sure which :/ but the equation would be:
10x+20y=160
or
25x+10y=160
there are different combinations of the two so im not sure T_T
The Endeveryone do me a favor and nominate "thebecks" as the educator of th.e year!
Answer:
will do
Step-by-step explanation:
and hello friend lol :)
Answer:
imma bout to answer my own question
Step-by-step explanation:
Which graph represents the function f(x) = 4|x|?
Which graph represents the function f(x) = 4|x|?
It looks like a "V" going straight up from 0, and hits both 4 and -4 y while going up perfectly
The graph opens upward, and it has a vertex of (0,0)
What is vertex?The vertex of an equation is the minimum or the maximum point on the graph of the equation
The equation of the graph is given as:
[tex]f(x) = 4|x|[/tex]
The above equation represents an absolute value function
An absolute value function is represented as:
[tex]f(x) = a|x -h| + k[/tex]
So, by comparison, we have:
[tex]a = 4[/tex]
[tex]h = 0[/tex]
[tex]k = 0[/tex]
This means that the graph opens upward, and it has a vertex of (0,0)
See attachment for the graph of [tex]f(x) = 4|x|[/tex]
Read more about absolute value functions at:
https://brainly.com/question/3381225
HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
3. Use the information about the m<2 and m
determine the missing information.
m22 = 97°
m26 = 83°
m
2
5
m2 3 =
m2 5 =
3
4
7
8
m210 =
m2 7 =
9
10
13
14
m2 9 =
m216 =
$
11
12
15/16
Answer:
m<3 = 97
m<10 = 97
m<9 = 83
m<5 = 97
m<7 = 83
m<16 = 97
Step-by-step explanation:
m<3 = m<2 because of vertical angles
m<10 = m<2 because of corresponding angles
m<9 + 97 = 180
m<9 = 83
m<5 + 83 = 180
m<5 = 97
m<7 = m<6 because of vertical angles
m<16 = m<5 because of alternate exterior angles.
