Answers
50,000 records
2013
50,000 × 1.1
55,000 records
2014
55,000 × 1.1
60,500 records
2015
60,500 × 1.1
66,550 records
2016
66,550 × 1.1
73,205 records
Related Questions
A poker hand consist of 5 cards?
a.find the total number of possible five card poker card hands.
b.find the number of ways in which one can king can be selected? c)find the number of ways in which four aces can be selected .
d.find the number of ways of getting four aces and one king.
Answers
In poker probability calculations, there are 2,598,960 possible five-card hands, various specific hand combinations such as those containing a king or four aces have their own probability, which can be determined using the formulas for combinations.
Calculations for Poker Probabilities
The subject of probability in a poker hand involves various combinations and permutations. Here's how the calculations are made:
Total number of five-card poker hands: The total number is calculated using combinations, as the order in which cards are drawn does not matter. This is given by the combination formula C(n, r) = n! / (r!(n-r)!), where n is the total number of available cards (52), and r is the number of cards drawn (5). Thus, there are 52! / (5!(52-5)!)= 2,598,960 possible hands.
Number of ways one king can be selected: There are four kings in a deck, so there are C(52, 5) - C(48, 5) ways to choose a hand with at least one king, as you subtract the number of hands without any kings from the total number of hands.
Number of ways four aces can be selected: There is only one way to choose all four aces, and then there are 48 remaining cards to choose the fifth card from, which gives 48 combinations.
Number of ways of getting four aces and one king: There are four kings to choose from and one specific combination of aces, so there are 4 ways to have a hand with four aces and one king.
for the final answer do i add the 5 to (x+1) making it 5x+5 or do i leave it how it is? Also how do i find the domain
Answers
It depends on what your teacher or answer key expect. You can take a hint from the fact that the given polynomials are all multiplied out.
(5x^2 +5)/(x -1)
_____
The domain of polynomials in general is "all real numbers." However, you must exclude any specific numbers that make the rational expression be undefined. This includes numbers that make the denominator of the numerator zero, as well as those that make either the numerator or the denominator of the denominator zero. In other words, you must exclude from the domain
.. x ∈ {-5, 1, 2}
find the positive value of x in the geometric sequence 7x-2,4x+4,3x
Answers
Let's assume k the ratio.
[tex] \left \{ {{3x=k*(4x+4)} \atop {4x+4=k*(7x-2)}} \right. \\\\ \left \{ {{3x-4kx=4k} \atop {4x-7kx=-2k-4}} \right. \\\\ \left \{ {{x(3-4k)=4k} \atop {x(4-7k)=-2k-4}} \right. \\\\ \left \{ {{x=\dfrac{4k}{3-4k} \atop {x=\dfrac{-2k-4}{4-7k} \right. \\\\ \dfrac{4k}{3-4k}=\dfrac{-2k-4}{4-7k}\\\\ 36k^2-6k-12=0\\ 6k^2-k-2=0\\ \boxed{k= \dfrac{2}{3} \ or\ k= -\dfrac{1}{2}}\\\\ x=\dfrac{4*\dfrac{2}{3} }{3-4*\dfrac{2}{3} }=8\\ x=\dfrac{4*\dfrac{-1}{2} }{3-4*\dfrac{-1}{2} }=-\dfrac{2}{5}\\ [/tex]
[tex] \boxed{x= 8 \ or\ x= -\dfrac{2}{5}}\\\\ [/tex]
The value of x = 8.
We have a geometric sequence.
We have to determine the positive value of x.
Define Geometric Sequence.A geometric sequence is a special type of sequence where the ratio of every two successive terms is a constant. This ratio is known as a common ratio.
According to the question -
The Geometric sequence is -
7x - 2, 4x + 4, 3x
According to the concept of Geometric sequence -
[tex]$\frac{a(2)}{a(1)} =\frac{a(3)}{a(2)}[/tex]
[tex]$\frac{4x+4}{7x-2} =\frac{3x}{4x +4}[/tex]
(4x + 4)(4x + 4) = 3x(7x - 2)
16[tex]x^{2}[/tex] + 16x + 16x + 16 = 21[tex]x^{2}[/tex] - 6x
16[tex]x^{2}[/tex] + 32x + 16 = 21[tex]x^{2}[/tex] - 6x
38x + 16 = 5[tex]x^{2}[/tex]
5[tex]x^{2}[/tex] - 38x - 16 = 0
Solve the above quadratic equation, you will get two roots -
x = 8 and x = 0.4
Since, we need positive value, therefore -
x = 8.
Hence, the value of x = 8.
To solve more questions on Geometric sequence, visit the link below -
https://brainly.com/question/19201330
#SPJ2
In triangle XYZ, the length of side XY is 24 mm and the length of side YZ is 34 mm. Which of the following could be the length side XZ?
A. 8 mm
B. 63 mm
C. 42 mm
D. 60 mm
Answers
34 mm - 24 mm = 10 mm
The length of side XZ must be greater than 10 mm.
24 mm + 34 mm = 58 mm
The length of side XZ must be less than 58 mm.
The only choice between 10 mm and 58 mm is 42 mm.
What is the equation, in slope-intercept form, of the line that is perpendicular to the line y – 4 = –(x – 6) and passes through the point (−2, −2)?
Answers
[tex]\sf y-y_1=m(x-x_1)[/tex]
Where 'm' is the slope and (x1, y1) is a point on the line.
Perpendicular lines have opposite slopes. To get the opposite, we take the reciprocal and multiply it by -1.
[tex]\sf -1[/tex]
Reciprocal:
[tex]\sf -\dfrac{1}{1}\rightarrow -\dfrac{1}{1}\rightarrow -1[/tex]
Multiply by -1:
[tex]\sf 1[/tex]
We can plug this slope and the point into point-slope form, and then convert it to slope-intercept form.
[tex]\sf y-y_1=m(x-x_1)[/tex]
[tex]\sf y-(-2)=1(x-(-2))[/tex]
Negatives cancel out:
[tex]\sf y+2=1(x+2)[/tex]
Distribute 1 into the parenthesis:
[tex]\sf y+2=x+2[/tex]
Subtract 2 to both sides:
[tex]\boxed{\sf y=x}[/tex]
Kail Ryans 10 laps around the track each day each lap around the track is 400 m meters how many times around the track will she need to run a total of 12 kilometers
Answers
1 km = 1000 m
12 km = 12,000 m
Each day, she runs 10 * 400 m = 4000 m
12,000 m / 4000 m = 3
It will take 3 days.
Have a nice day
If a line crosses the y-axis at (0,8) and has a slope of -1/8,what is the equation of the line?
A.y= 1/8x+8
B.y=-1/8x-8
C.y=8x-8
D.y=-1/8x+8
Please help me!!!!!!
Answers
the slope is always connected to the x, and "b" is the y axis point of the two coordinate pairs, so it would be minus eight if the coordinate pairs were (0, -8).
[tex]y = mx + b[/tex]
m= slope
b= y axis point of the two coordinate pairs
Answer:
d
Step-by-step explanation:
Use the quadratic formula to determine the exact solutions to the equation. 6x2+4x−3=0
Answers
The correct answer is [tex]x = \frac{-4 + 2\sqrt{22}}{12}$ and $x = \frac{-4 - 2\sqrt{22}}{12}[/tex]
To find the exact solutions to the equation [tex]6x^2 + 4x - 3 = 0[/tex]using the quadratic formula, we can follow these steps:
Given quadratic equation: [tex]6x^2 + 4x - 3 = 0[/tex]
[tex]a = 6, b = 4, c = -3[/tex]
[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
[tex]x = \frac{-4 \pm \sqrt{4^2 - 4(6)(-3)}}{2(6)}[/tex]
[tex]x = \frac{-4 \pm \sqrt{16 + 72}}{12}[/tex]
[tex]x = \frac{-4 \pm \sqrt{88}}{12}[/tex]
[tex]x = \frac{-4 \pm \sqrt{4 \cdot 22}}{12}[/tex]
[tex]x = \frac{-4 \pm 2\sqrt{22}}{12}[/tex]
Solution 1: [tex]x = \frac{-4 + 2\sqrt{22}}{12}[/tex]
Solution 2: [tex]x = \frac{-4 - 2\sqrt{22}}{12}[/tex]
Therefore, the two exact solutions to the equation [tex]6x^2 + 4x - 3 = 0[/tex] are:
[tex]x = \frac{-4 + 2\sqrt{22}}{12}$ and $x = \frac{-4 - 2\sqrt{22}}{12}[/tex]
John says the transformation rule (x, y) es002-1.jpg (x + 4, y + 7) can be used to describe the slide of the pre-image (4, 5) to the image (0, –2). What was his error?
Answers
The appropriate transformation rule is (x -4, y-7).
_____
John's signs were in error.
Sample Response: The pre-image is the point you start with. To check the transformation rule, substitute the values of the coordinates (4, 5) into the rule. You get (4, 5) → (4+4, 5+7). Simplify to get (4, 5) → (8, 12). This is the image. Instead the rule was applied to the image. This is the source of the error.
Place the indicated product in the proper location on the grid.
(5c +2/3 )(5c -2/3 )
Answers
25c^2-4/9
Explanation
In this question you are expected to expand (5c+2/3)(5c-2/3)
(5c+2/3)(5c-2/3)=(5c×5c)-(5c×2/3)+(5c×2/3)-(2/3×2/3)
=25c^2-10c/3+10c/3-4/9
25c^2-4/9
The expanded form of (5c+2/3)(5c-2/3) is 25c^2-4/9 and this is what the question requires of you to do.
Answer:
The product of the polynomial [tex]\left(5c+\frac{2}{3}\right)\left(5c-\frac{2}{3}\right)=25c^2-\frac{4}{9}[/tex]
Step-by-step explanation:
given : The polynomial [tex]\left(5c+\frac{2}{3}\right)\left(5c-\frac{2}{3}\right)[/tex]
We have to place the indicated product in the proper location o the grid.
Consider the given polynomial [tex]\left(5c+\frac{2}{3}\right)\left(5c-\frac{2}{3}\right)[/tex]
Apply identity of difference of square
[tex]\left(a+b\right)\left(a-b\right)=a^2-b^2[/tex]
We have,
[tex]=\left(5c\right)^2-\left(\frac{2}{3}\right)^2[/tex]
Simplify, we have,
[tex]=25c^2-\frac{4}{9}[/tex]
Thus, The product of the polynomial [tex]\left(5c+\frac{2}{3}\right)\left(5c-\frac{2}{3}\right)=25c^2-\frac{4}{9}[/tex]
Location on gris shown below.
Please Help!!!
The figure shows a line graph and two shaded triangles that are similar:
Which statement about the slope of the line is true? (5 points)
Select one:
a. It is fraction 1 over 2 throughout the line.
b. It is 2 throughout the line.
c. The slope from point O to point A is fraction 1 over 2 time the slope of the line from
point A to point B.
d. The slope from point O to point A is two times the slope of the line from point A to point B.
Answers
Looking at the first triangle, the rise is 2 and the run is 4. That gives us a slope of 2/4 = 1/2.
For the second triangle, the rise is 1 and the slope is 2. This gives us a slope of 1/2.
Any linear function will have the same slope throughout the entire line.
You and your friend are standing back-to-back. Your friend runs 10 feet forward and then 8 feet right. At the same time, you run 11 feet forward and then 12 feet right. You stop and throw a baseball to your friend, who catches it. How far did you throw the baseball?
Answers
You and your friend are standing back-to-back. Your friend runs 16 feet forward and then 12 feet right. At the same time, you run 12 feet forward and then 9 feet right. You stop and throw a baseball to your friend, who catches it. How far did you throw the baseball?
Answers
784+9=x2
793=x2
28.1602556807=x
What is the lateral area of this regular octagonal pyramid?(PICTURE ONE)
114.8 cm²
162.4 cm²
229.7 cm²
281.3 cm²
2.What is the slant height x of the square pyramid?(PICTURE 2)
The figure shows a square pyramid. The slant height is shown as a dashed line perpendicular to the base edge and is labeled as x. The length of the lateral edge is 8 meters. The lateral edge makes a 60 degree angle with the base edge
Express your answer in radical form.
3.What is the surface area of this square pyramid? (pICTURE 3)
Round your answer to the nearest tenth, if necessary.
43.8 yd²
66.6 yd²
105 yd²
171.6 yd²
Answers
the lateral area of the pyramid is the total area of all the lateral faces excluding the base.
In this regular octagonal pyramid, the lateral sides are triangles. As there are 8 triangles we need to find the area of all 8 sides.
Area of one lateral triangle face = 1/2 * base * slant height
slant height is the hypotenuse of the right angled triangle formed from the base of the pyramid with the perpendicular height.
slant height - l
l² = 7² + 7² = 49 *2
l² = 98
l = √98
l = 9.9
Area = 1/2 * 5.8 cm * 9.9 cm
= 28.71 cm²
There are 8 sides
total lateral area = 8 * 28.71 = 229.68 rounded off is 229.7 cm²
third option is correct - 229.7 cm²
Q2)
in the triangular face, the lateral edge makes a 60° angle with the base edge. Therefore 2 of the angles are 60° each, since the sum of the interior angles of a triangle is 180°, the third angle too is 60°. this makes the triangle an equilateral triangle with equal angles, hence equal sides.
since lateral edge is 8 cm,base edge too is 8 cm.
since this is an equilateral triangle, the perpendicular line cuts the base edge at its midpoint, bisecting the line forming 2 right angled triangles.
in the right angled triangle, height of triangle is x slant height ,
base = 8 /2 = 4 cm
hypotenuse = 8 cm
We need to find x, use Pythogoras' theorem
4² + x² = 8²
16 + x² = 64
x² = 62 - 16
x = √48
x = √4x√4x√3
= 2x2√3
= 4√3 cm
Q3)
surface area of the square pyramid
surface area of the base + surface area of triangular faces
square area = length x length
= 6.2 x 6.2
= 38.44 yd²
triangular face area = 1/2 * length * height
since the angle between lateral edge and base edge is 60°, its an equilateral triangle where all sides are equal. in this case each side is 6.2 yd.
to find the perpendicular height, use pythogoras' theorem
the perpendicular line(slant height ) cuts the base edge at its midpoint, therefore length of the right angled triangle is = 6.2/2 = 3.1 yd
slant height - l
l² + 3.1² = 6.2²
l² = 38.44 -9.61
l² = 28.83
l = 5.37
area = 1/2 *length *height
= 1/2 * 6.2 * 5.37
= 16.64 yd²
there are 4 triangles = 4 * 16.64 = 66.58 yd²
total area = 38.44 + 66.58 = 105 yd²
correct answer is 3rd option - 105 yd²
Answer:
1. 229.7cm^2
2. 4 (square root) 3 cm
3. 16.64yd^2
Step-by-step explanation:
I just took th test, and came to confirm the other guys' answers ;)
Set operations including cardinality of power sets and listing the elements of a power set and finding the number of subsets of a given size. let u = {-1, 0, 1, 2, 3, 4, 6} , a = {-1, 1, 2, 3, 4} and b = {0, 2, 4, 6}. find
a.a u b,
b.a ∩ b,
c.b – a,
d.the power set of b and its cardinality
Answers
a [tex]\cup[/tex] b means the resulting set when a and b are merged, less duplicates.
a [tex]\cup[/tex] b={-1, 1, 2, 3, 4} [tex]\cup[/tex] {0, 2, 4, 6}
={-1,0,1,2,3,4,6}
b. a [tex]\cap[/tex] b
a [tex]\cap[/tex] b means the set of members which are common to both a and b.
a [tex]\cap[/tex] b={-1, 1, 2, 3, 4} [tex]\cap[/tex] {0, 2, 4, 6}
={2,4}
c. b-a
b-a is the set of members present in b but not in a.
{0, 2, 4, 6}-{-1, 1, 2, 3, 4}
={0,6}
d. Power set of b, its cardinality
Power set is the set of all possible combinations of elements.
There are 2^n members in the power set of x where n is the number of elements in the set x.
For example, power set of S={1,2} is {[tex]\phi[/tex],{1},{2},{1,2}}
The cardinality of S above is the number of elements in the set, therefore 2^2=4.
For b={0,2,4,6}
The power set is
{[tex]\phi[/tex],{0},{2},{4},{6},{0,2},{0,4},{0,6},{2,4},{2,6},{4,6},{0,2,4},{0,2,6},{0,4,6},{2,4,6},{0,2,4,6}}
for a total of 2^4=16 members in the power set.
Therefore the cardinality of the power set is 16.
The union of A and B is {-1, 0, 1, 2, 3, 4, 6}, the intersection is {2, 4}, and the difference B - A is {0, 6}. The power set of B contains 16 subsets.
Set Operations: Union, Intersection, Difference, and Power Sets
Let's solve the given problems step by step:
a. The union of sets A and B (A ∪ B)
A ∪ B represents all unique elements that are in either set A or set B.
Given: A = {-1, 1, 2, 3, 4} and B = {0, 2, 4, 6}
A ∪ B = {-1, 0, 1, 2, 3, 4, 6}
b. The intersection of sets A and B (A ∩ B)
A ∩ B represents all elements that are present in both sets A and B.
A ∩ B = {2, 4}
c. The difference of sets B and A (B - A)
B - A represents all elements that are in set B but not in set A.
B - A = {0, 6}
d. The power set of B and its cardinality
The power set of a set is the set of all its subsets, including the empty set and the set itself. If a set has n elements, its power set will contain 2^n subsets.
B = {0, 2, 4, 6}
The power set of B is: { {}, {0}, {2}, {4}, {6}, {0, 2}, {0, 4}, {0, 6}, {2, 4}, {2, 6}, {4, 6}, {0, 2, 4}, {0, 2, 6}, {0, 4, 6}, {2, 4, 6}, {0, 2, 4, 6} }
The cardinality of the power set of B is 2^4 = 16.
In summary:
A ∪ B = {-1, 0, 1, 2, 3, 4, 6}
A ∩ B = {2, 4}
B - A = {0, 6}
The power set of B has 16 elements.
Jenna's parents required her to put $10 of her $50 monthly allowance into a savings account for what percent of her monthly allowance did this represent?
Answers
Final answer:
To determine the initial amount needed in a bank account to reach $10,000 in ten years with 10% compound interest, use the compound interest formula.
Explanation:
To find out how much money you need to put in a bank account to have $10,000 in ten years with 10% interest compounded annually:
Use the formula for compound interest: A = P(1 + r/n)^(nt)
Plug in the values: $10,000 = P(1 + 0.10/1)^(1*10)
Solve for P: P = $10,000 / (1.10^10)
Calculation:
PV = FV / (1 + r/n)^(n*t)
Inserting the known values:
PV = $10,000 / (1 + 0.10/1)^(1*10)
PV = $10,000 / (1.10)^10
Calculating the exponent:
PV = $10,000 / 2.59374
Finally:
PV = $3,855.43 (approximately)
Therefore, you need to put approximately $3,855.53 into the bank account initially.
Exponential Growth/Decay Function
Hint/Tip:
Remember, the basic general exponential function form is: y = Abx In detail, b is written as (1-r) where r is the rate of growth or decay, so our detailed formula is: y = A(1-r)x
Always work with the rate as a decimal number, not as percentage. If the rate is given as percent (%), you will need to divide it by 100 to have the decimal form.
The value of a car is $21,500. It loses 12% of its value every year.
(a) Write a function that represents the value y (in dollars) of the car after x years.
(b) Use the function to estimate the value of the car after 6 years. (round your answer to the nearest whole number)
Answers
For this case what we should do is write the equation of exponential type.
We have then:
y = A (b) ^ x
Substituting the values:
y = 21500 (0.88) ^ x
Answer:
y = 21500 (0.88) ^ x
(b) Use the function to estimate the value of the car after 6 years. (round your answer to the nearest whole number)
We use the function found in part (a) and evaluate for x = 6.
We have then:
y = 21500 (0.88) ^ 6
y = 9985 $
Answer:
the value of the car after 6 years is:
y = 9985 $
A warranty identification number for a certain product consists of a letter of the alphabet followed by four-digit number. How many possible identification numbers are there if the first digit of the four-digit number must be nonzero?,
Answers
fourteen less than three fourths of a number is negative eight
Answers
After solving it...
x = 8
Hope this helps
14+8 = 3/4x
22 = 3/4x
88 = 3x
88/3 = x
What is the volume of a square pyramid with a base length of 6 cm and a height of 9 cm?
Enter your answer in the box.
cm³
Answers
Answer:
1/3 x base squared x height
Step-by-step explanation:
so yes 108 is correct.
A rectangle is 1/2 feet long and 3/4 wide what is the area of rectangle
Answers
I assume you left out "ft" from the width, so the width is 3/4 ft.
A = LW = 1/2 ft * 3/4 ft = 3/8 ft^2
A = 1/2 × 3/4
A = 0.375 or 3/8
Suppose the line of best fit is being found for some data points that have an r-value of 0.876. If the standard deviation of the x-coordinates is 5.559, and the standard deviation of the y-coordinates is 7.163, what is the slope of the line to three decimal places?
Answers
Answer: 1.129
Step-by-step explanation:
In statistics, the slope of the line is given by :-
[tex]b=r\dfrac{\sigma_y}{\sigma_x}[/tex],
[tex]\text{where r is correlation coefficient,}\\\sigma_y\text{ is standard deviation of the y-coordinates,}\\\sigma_x\text{ is standard deviation of the x-coordinates,}[/tex]
[tex]\text{Given: }r=0.876\\\sigma_x=5.559\\\sigma_y=7.163[/tex]
Now, the slope of the line will be :-
[tex]b=0.876\times\dfrac{7.163}{5.559}\\\\\Rightarrow\ b =1.12876200756\approx1.129[/tex]
Hence, the lope of the line to three decimal places =1.129
Determine 10th term : 5,-25,125
Answers
Keep doing this until you reach the tenth term.
You will get -9,765,625.
Hope this helps!
A yoga membership costs $16 and an additional $7 per class. Write a linear equation modeling the cost of a yoga membership.
y = 16x + 7
y = 7x + 16
y = 23x + 7
y = 23x + 16,
Answers
what is the 8th term in the following sequence 28,33,38,43.....
Answers
28, 33, 38, 43, 48, 53, 58, 63 63 is the 8th term.
A globe in a brass stand has a diameter of 40 in . what is the volume of the globe to the nearest cubic inch?
Answers
2* 3.14* 20 = 125.6in cubed
Don't forget to put 2 above inches for volume.
--------------------------------------------------------------------
Formula: Volume of a sphere
--------------------------------------------------------------------
[tex]Volume \ of \ a \ sphere = \frac{4}{3} \pi r^3[/tex]
--------------------------------------------------------------------
Given Diameter, Find Radius
--------------------------------------------------------------------
Diameter = 40 in
Radius = 40 ÷ 2 = 20 in
--------------------------------------------------------------------
Apply Formula
--------------------------------------------------------------------
[tex]Volume \ of \ the \ sphere = \frac{4}{3} \pi (20)^3[/tex]
[tex]Volume \ of \ the \ sphere = 33510 in^3[/tex]
--------------------------------------------------------------------
Ans: Volume of the Globe is 33510 in³
--------------------------------------------------------------------
hElP!
A carpenter designs two cabinets: one in the shape of an oblique rectangular prism and one in the shape of a right rectangular prism. The volume of each cabinet is 4,608 cubic inches. The oblique rectangular prism is 48 inches tall and has an edge length of 64 inches. The right rectangular prism has a height of 48 inches. Which statements about the cabinets are true? CHECK ALL THAT APPLY
a. The cabinets have the same base area.
b.The base area of the oblique prism is smaller than the base area of the right prism.
c.The cabinets may have the same base dimensions.
(MORE DOWN BELOW),
Answers
Answer:
A- The cabinets have the same base area.
C- The cabinets may have the same base dimensions.
D- The cabinets may have different base dimensions
Step-by-step explanation:
Answer:
A. C. D.
Step-by-step explanation:
Write the equation of a line that includes the point (1, 5) and has a slope of 3 in standard form. 3x + y = 5 –3x + y = 5 3x + y = 2 –3x + y = 2
Answers
Will mark brainliest!!
The histogram shows the ages of cars sold at a car auction.
What percent of the cars was less than 20 years old or more than 40 years old?
Answers
I know not the correctness of my answer due to:
The Total was 8 to fit the criteria, the others older than 20 but younger than 40 are 12
(However I do not know how to calculate percentage, went to Google and got a percentage calculator to find what percentage 8 is to 12)
How do you do this? It's so confusing! Please help!
Answers
notice AB ⟂ BC , whilst ∡B = 30°.
now, if we run a perpendicular line from C to AB, it'll be a 90° angle at M, however ∡AMC has to be 105°, so it has to be slanted more towards A, like in the picture, and surely you already know which one is the shortest.