Leya has four times as many cards as Hiro, and Jane has twice as many cards as Leya. Together, Leya and Jane have 468 cards. How many cards do Leya, Jane, and Hiro each have?

\(\sqrt{25*7x^{4}*x^{1} } \\=\sqrt{25*x^{4}*7 *x^{1} } \\=\sqrt{25x^{4} } *\sqrt{7x}\\=5x^{2} \sqrt{7x}\)

Option B is the answer.

Answer: C

i hope you can see my handwriting

The stem of 2 would have 4 leaves in the data represented with a stem-and-leaf plot.

A stem-and-leaf plot is a way of organizing and presenting data in a table. Each data value is split into a "stem" and a "leaf."

The stem represents the tens digit of the data value, and the leaf represents the ones digit.

In the data given, the stem of 2 would include all data values whose tens digit is 2. This includes the data values 22, 42, 62, and 74.

Therefore, the stem of 2 would have 4 leaves.

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Answer:

3,-2.

Step-by-step explanation:

hope this helps. :-)

The probability density function for U is: f_U(u) = (4/(1+u)^3) * e^-(1+u)/2, u > 0

The joint distribution for the length of life of two different types of components operating in a system is given by f(y_1, y_2) = {(1/8)y_1 e^-(y_1 + y_2)/2, y_1 > 0, y_2 > 0, 0, elsewhere. We are asked to find the probability density function for U = Y_2/Y_1.

To find the probability density function for U, we first need to find the joint distribution of U and Y_1. We can do this by using the change of variables formula:

f_U,Y_1(u, y_1) = f_Y_1,Y_2(y_1, uy_1) * |J|

where J is the Jacobian determinant of the transformation.

The Jacobian determinant is given by:

J = |∂(y_1, uy_1)/∂(u, y_1)| = |y_1|

So, the joint distribution of U and Y_1 is:

f_U,Y_1(u, y_1) = (1/8)y_1 e^-(y_1 + uy_1)/2 * |y_1| = (1/8)y_1^2 e^-(1+u)y_1/2

Next, we need to find the marginal distribution of U by integrating out Y_1:

f_U(u) = ∫f_U,Y_1(u, y_1) dy_1 = (1/8)∫y_1^2 e^-(1+u)y_1/2 dy_1

This integral can be solved using integration by parts. The final result is:

f_U(u) = (4/(1+u)^3) * e^-(1+u)/2

So, the probability density function for U is:

f_U(u) = (4/(1+u)^3) * e^-(1+u)/2, u > 0

This is the final answer.

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Answer:

12

Step-by-step explanation:

10x - 20 + 6x + 8 = 180

Supplementary angles

Answer:

x = 12

Step-by-step explanation:

The two given angles create a straight line (Definition of Straight Line). This means that:

\((10x - 20) + (6x + 8) = 180\)

First, combine like terms. Like terms are terms that share the same amount of the same variables:

\((10x + 6x) + (8 - 20) = 180\\(16x) + (-12) = 180\\16x - 12 = 180\\\)

Next, isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, add 12 to both sides of the equation:

\(16x - 12 = 180\\16x - 12 (+12) = 180 (+12)\\16x = 180 + 12\\16x = 192\)

Next, divide 16 from both sides of the equation:

\(\frac{16x}{16} = \frac{192}{16} \\x = \frac{192}{16}\\ x = 12\)

12 is your answer.

~

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10% of the time, the population mean will go below $1,500 or exceed $2,100.

Given that,

Assume that we have data on the annual spending on apparel of a sample of families. The probability that the population mean will fall below $1,500 or rise over $2,100 is ________% if we are 90% positive that the genuine population mean will be between $1,500 and $2,100.

We have to fill the blank.

We know that,

90% of the time, the real population mean will fall in the range of $1,500 and $2,100.

The genuine population mean will therefore most likely fall between $1,500 and $2,100, with a 90% probability.

So, the probability that it will fall outside of this range (i.e., be either less than $1,500 or beyond $2,100) is 100-90, or 10%.

Therefore, 10% of the time, the population mean will go below $1,500 or exceed $2,100.

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X would equal 48°

Step-by-step explanation:

59°-11°= 48° (x)

The experimental probability of choosing a student who walks to school is given by 0.15625 or 15.625%.

Given data ,

The experimental probability of choosing a student who walks to school can be calculated by dividing the number of students who walk to school by the total number of students in Joe's class.

Number of students who walk to school = 5

Total number of students in the class = 32

Experimental probability = Number of students who walk to school / Total number of students

= 5 / 32

P = 0.15625

Hence , the experimental probability of choosing a student who walks is 0.15625 or 15.625%.

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Answer:

The correct answer is the last one: 8 x 16 = ?

Step-by-step explanation:

hope this helps. pls mark this as brainiest if im correct! Thx have a great day... :)

Answer:

\(P=4.41205084*10^2^1\)

Step-by-step explanation:

From the ques ton we are told that

Total amount N=15

Choices within 10 pop, 25 reggae, 10 blues

Generally for equal amount in her play list she's mathematically Going to have 5 of each kind  Pop,Reggae,Blues

Therefore

Let the amount of differnt playlist be given as P

\(P=^1^0C_5*^2^5C_5*^1^0C_5*15!\)

\(P=252*53130*252*1307674368000\)

\(P=4.41205084*10^2^1\)

Therefore \(P=4.41205084*10^2^1\)  different playlists are possible

Answer:

4

Step-by-step explanation:

multiply equation [1] by 4 and equation [2] by 2

divide both sides by 8

a=3

substitute 3 for a in equation 2 above

take 6 to the other side of the equation

the symbol changes

divide both sides by 4

p=4

Answer: (In order)

25/4 / 6 1/4 = 1

3 1/7 / 2/7 = 11

5/4 / 1/4 = 5

11 1/4 / 9/4 = 5

8 1/4 / 3/4 = 11

3 1/3 / 10/3 = 1

Step-by-step explanation:

After 2 years there will be 6257 research papers published from now if the Dr. Carey's area of expertise has been increasing by 3% every year.

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent \(\rm y = a^x\)

where a is a constant and a>1

We have:

The number of research papers in Dr. Carey's area of expertise has been increasing by 3% every year.

We are assuming there is exponential increase.

So,

After 2 years the published research papers (a)

a = 34,176(1 + 0.03)²

Because increasing by 3%(0.03) every year.

a = 34176(1.03)²

a = 36257.31 ≈ 36257 research papers

Thus, after 2 years there will be 6257 research papers published from now if the Dr. Carey's area of expertise has been increasing by 3% every year.

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Answer:

the second one

Step-by-step explanation:

i cant graph on brainly soz but its the second table

Step-by-step explanation:

I can't graph it, but place all of the points on the second quadrant top. X axis  always comes first.  

Note that the phrases that best describe the graph of f(x) = |x| are:

1) Note that the function given above is an Absolute Function, and as given in the attached graph, you'd notice that the graph of an absolute function is always V-shaped. Thus, option A is true.

2) One must also note that where the sign before the modulus is positive, then the graph opens up (as in the case above) otherwise it opens down. Thus, option C is correct.

3) If (x,-y) lies on the function, then f(x) is in proportion with respect to the x-axis. If (-x,y) lies on the function, then f(x) is in proportion with respect to the y-axis.

Put (x,-y) in the given function.

-y = |x| ⇒ -y ≠ y

Thus,  f(x) is not symmetric with regard to the x-axis.

Placing (-x,y) in the given function, we have

y = |x| ⇒ y = y

Because the point (-x,y) lies on the function, therefore (fx) is symmetric with regard to the y-axis. Hence, Option F is correct.

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Answer:

Step-by-step explanation:

Amount in 4.6% acct= 15000*(1/3)= 5000

Amount in bonds = 1/4*15000= 3750

Amount in stock= 15000-(5000+3750)= 6250

Amount in each account at the end of three years

5000*(1.046)^3= 5722.22668

3750*(1.052)^3=4365.94728

6250*1.03*(1-.08)*1.06= 6277.85

total: 5722.22668+4365.94728+6277.85=16366.02396

gain= 16366.02396-15000=1366.02396

or (16366.02396/15000)-1= 9.1068264%

Answer:

∠BAC = 75°

Step-by-step explanation:

just subtract angle BAD from angle CAD

48 persons are present at the gathering. There are seven times more adults than children in the world. The number of women is two times that of men. If there are five females (young women) in attendance. The total number of male adults are15

The total number of people are in the party is equal to 48

Let the number of children be x

So, the number of adults in the party is equal to 7 x

x + 7 x =48 ( This is a linear equation)

So, the number of children in the comes to be 6

Number of adults in the party = 6 * 7 = 42

Now let the number of males be y

So total number of females = 2 y

Y+2y = 48 ( This is a linear equation)

Y=16

Therefore, the number of males is 16 and the number of females is 32

The number of children in the party is 6 and the female child is equal to 5

Then, the number of male children =6-5 = 1

So total number of males in the party is equal to 16

Adult males =total number of males - number of male children

=16 - 1 = 15

Hence the total number of male adults =15

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Answer:

no

Step-by-step explanation:

You can simplify them both.

3x+12=12 and 3x + 3 =4

make them both so they equal 0

3x=0  and 3x-1=0

no, theyre not equal since when they both equal 0, they are not the same equation

The variance of Billy's grades obtained from his test scores is 15.76

The variance is a measure of variability or spread a dataset. The variance can be calculated from the sum of the square of the differences of the data points from the mean divided by the number or count of the data points.

The variance of Billy's test scores can be calculated by finding the mean or the average of the scores, then finding the sum of the squares of the differences of each score from the mean as follows;

The mean score = (89 + 88 + 93 + 90 + 81)/5 = 88.2

The square of the differences of the values from the mean can be calculated as follows;

(89 - 88.2)² = 0.64, (88 - 88.2)² = 0.04, (93 - 88.2)² = 23.04, (90 - 88.2)² = 3.24, and (81 - 88.2)² = 51.84

The sum of the square of the differences is therefore;

0.64 + 0.04 + 23.04 + 3.24 + 51.84 = 78.8

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Answer:

The number of sides is 3 on each piece of paper, altogether there are 6 sides.

The total number of angles on a triangle is 180°, altogether the sum of both triangles is 360°

The triangle that has been shown is a scalene obtuse triangle.

A triangle called a scalene triangle has three sides that are all different lengths. In other words, a scalene triangle has three different angles and no two of its sides have the same length.

A triangle with one obtuse angle is referred to as an obtuse triangle. Any angle that is greater than 90 degrees but less than 180 degrees is referred to as an obtuse angle.

Thus we have a scalene obtuse triangle.

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Answer:

Step-by-step explanation:

You want to identify the given shapes as a regular or irregular polygon, or neither.

A regular polygon is one that has all sides congruent, and all interior angles congruent. Polygon E is marked as having congruent sides and congruent angles.

Polygon E is a regular polygon.

A polygon is a closed figure formed by line segments connected end-to-end. A simple polygon is one that has no intersecting line segments. A convex polygon is one that has all interior angles measuring 180° or less.

Any simple polygon that is not a regular polygon is an irregular polygon.

Polygons A, B, D are irregular polygons.

A circle is not a polygon. Figure C is neither a regular polygon nor an irregular polygon.

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Answer:

See explanation

Step-by-step explanation:

c=different number of colors

t=5s+50c   ==> c=2

t=5s+50(2)

t=5s+100

5 is the cost of making each shirt and 50 is the cost of making shirts in one color. Hence, 50c is the cost of making shirts in c number of colors and 5s is the cost of making s number of shirts. 50c translates to 50(2) since shirts are made in two colors, so 50(2)=100. 100 dollars is the total cost of making shirts in 2 different colors.

The linear equation that describes this situation is:

y = 2500 + 300*x

A general linear equation is written as:

y = ax + b

where a is the slope and b is the initial value.

Here we know that she starts with 2,500 points in the game, and then she wins 300 points for every minute.

Then the initial value is 2,500, and the slope is 300, then we can write the linear equation:

y = 2500 + 300*x

That is the correct option.

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The simplified version of the expression would be 31-w

The numerical part of the expression given is :

Simplifying using Subtraction operation:

Adding the alphabetical part :

Therefore, the simplified form of the expression is 31-w.

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