In a certain year, 86% of all Caucasians in the U.S., 76% of all African-Americans, 76% of all Hispanics, and 85% of residents not classified into one of these groups used the Internet for e-mail. At that time, the U.S. population was 64% Caucasian, 11% African-American, and 11% Hispanic. What percentage of U.S. residents who used the Internet for e-mail were Hispanic

Answer:

1. A, 2. A , good luck!!!

Step-by-step explanation:

B. The function shown on the graph has a smaller rate of change, but a higher starting point.

Rate of change = slope of a linear graph.

Given the linear function, \(y=4x+2\) , the rate of change here is represented by the slope of the line, which is 4.

Let's find the rate change of the function represented on the graph using slope formula:

Rate of change = \(\frac{y2-y1}{x2-x1}\)

Use coordinates of any two points on the line. Let's take,

\((0,4)= (x1,y1)\\(1,7)=(x2,y2)\)

Rate of change = \(\frac{7-4}{1-0} = 3\)

Rate of change of the linear function of the graph = 3.

Thus the function on the graph has a smaller rate of change, than the function, y = 4x + 2.

The starting value of a function is the y-intercept, that is, the value of y, when x = 0. It is the point at which the line intercepts the y-axis.

The starting value of the linear function, y = 4x + 2 is 2.

The starting value of the function on the graph is 4. At this point, x = 0.

Thus, the function on the graph has a higher starting point.

The statement that correctly compares the function shown on this graph with the function y= 4x+2 is:

B. The function shown on the graph has a smaller rate of change, but a higher starting point.

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Answer: The last one  (\(8^{2}\))

Step-by-step explanation:

Here’s why:

the 2 on top of the 8 is called an exponent and it means that you need the multiply 8 times itself two times (8 x 8), and if you know your times tables you know that 8 x 8 is 64 not 16

Answers:

(a) Area: 2108 in²  Perimeter: 192 in

(b)  Area

(c) perimeter

Step-by-step explanation:

To find the area, you do 34 × 62

To find the perimeter you do 34 + 34 + 62 + 62

Answer:

Sorry, I can't help you with that :( I hope someone else can tho!

Step-by-step explanation:

y = f(x)

so f(14) = 11 means the input x = 14 leads to the output y = 11

The point (x,y) = (14,11) is on the f(x) curve.

Function f(14) = 11 implies that the outcome of a function at x = 14 the value of the function is 11.

Given that,
To specify what the function f (14) = 11 means.

Functions is 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,
f( 14 ) = 11
f( 14 ) = f( x )
x = 14
f( x ) = 11

Implies that,
f(x) = y
is function, when x = 14 the function gives y = 11 ,,means that for x = 14 the outcome of the function is 14.

Thus, function f(14) = 11 implies that the outcome of a function at x = 14 the value of the function is 11.

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Answer:  a

Step-by-step explanation:

y = f(x)

Reflection, change the sign of the function

y = - f(x)

f(x) -f(x)

1 -1

2 -2

3 -3

8 -8

20 -20

The x coordinate will change.

Answer:

9 + 7x

Step-by-step explanation:

14 + 3х - 5 + 4х

Subtract the numbers, and add the x's together.

9 + 7x

This is the furthest the expression can be simplified.

Hope this helps :)

The power series solution to x²y'' - x(1 + x)y' + y = 0 at x = 0 with the general formula for the coefficients.

The differential equation is x²y'' - x(1 + x)y' + y = 0.

To find the power series solution for this differential equation at x = 0, we assume a power series solution of the form y = ∑anxⁿ.

We substitute this power series in the differential equation and we get:

(x²y'' - x(1 + x)y' + y) = 0  

x²(∑anⁿ(n - 1)xⁿ⁻²) - x(1 + x)(∑anⁿxⁿ⁻¹) + (∑anxⁿ) = 0.

We use the product rule of differentiation to get:

(x²∑anⁿ(n - 1)xⁿ⁻²) - (x²∑anⁿ(n - 1)xⁿ⁻² + x∑anⁿxⁿ⁻¹) + (∑anxⁿ) = 0.

This can be simplified as:

(∑anⁿ(n - 1)xⁿ) - (∑anⁿ(n + 1)xⁿ) + (∑anxⁿ) = 0.(∑anⁿ(n - 1)xⁿ) - (∑anⁿ(n + 1)xⁿ) + (∑anxⁿ) = 0.

This equation holds true for all x. For simplicity, we can set the coefficients of xⁿ to zero.

Then, we have the following relations for the coefficients:For n = 0, an + a1 = 0.

For n > 1, an = (n + 1)aₙ₋₁ / (n - 1) - aₙ₋₂.The general formula for the coefficients is given by:an = (n + 1)aₙ₋₁ / (n - 1) - aₙ₋₂.

We can use the initial conditions to determine the values of a0 and a1.

We can also use the recurrence relation to calculate the other coefficients.

Thus, we can obtain the power series solution to x²y'' - x(1 + x)y' + y = 0 at x = 0 with the general formula for the coefficients.

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1, 140 °

2, 40°

3, 100 °

4, 100°

5, 40°

6, 90 °

7, 120 °

8, 130 °

Step-by-step explanation:

1, BOA IS EQUAL TO FOH = 140°

2, FOE EQUAL TO BOA = BOA = 40° = FOE = 40°

3, BOA° + GOF° =40° + 60° = 100 °

4, GOE = BOC WHICH MEAN GOE = 100° = BOC = 100°

5, COD = HOG =40 °

6, EOD= AOG = 90°

7, AOD = GOE + COD = 100° + 40 ° = 140°

8, BOG = 140 °

Answer:

7/(3a-1)

Step-by-step explanation:

I have tried to show the steps in the attached image,

if you need further explanation please let me know.

Answer:

|x - 9| = 4

Step-by-step explanation:

All numbers x that are at a distance of 4 fro the number 9

Given two numbers a and B, the absolute distance between them is written as :

|a - b| = c

Hence all numbers x at distance of x from 9

|x - 9| = 4

{x : |x - 9| = 4}

Impulse, change in momentum, final speed, and momentum are all related concepts in the context of Newton's laws of motion. Let's go through each option and explain their relationships:

(a) Impulse delivered: Impulse is defined as the change in momentum of an object and is equal to the force applied to the object multiplied by the time interval over which the force acts.

Mathematically, impulse (J) can be expressed as J = F  Δt, where F represents the net force applied and Δt represents the time interval. In this case, you mentioned that the net force acting on the crates is shown in the diagram. The impulse delivered to each crate would depend on the magnitude and direction of the net force acting on it.

(b) Change in momentum: Change in momentum (Δp) refers to the difference between the final momentum and initial momentum of an object. Mathematically, it can be expressed as Δp = p_final - p_initial. If the crates start from rest, the initial momentum would be zero, and the change in momentum would be equal to the final momentum. The change in momentum of each crate would be determined by the impulse delivered to it.

(c) Final speed: The final speed of an object is the magnitude of its velocity at the end of a given time interval.

It can be calculated by dividing the final momentum of the object by its mass. If the mass of the crates is provided, the final speed can be determined using the final momentum obtained in part (b).

(d) Momentum in 3 s: Momentum (p) is the product of an object's mass and velocity. In this case, the momentum in 3 seconds would be the product of the mass of the crate and its final speed obtained in part (c).

To rank these quantities from greatest to least for each crate, you would need to consider the specific values of the net force, mass, and any other relevant information provided in the diagram or problem statement.

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Quantitative type of variable is the number of robberies reported in your city.

The number of robberies reported in your city is a quantitative variable because it represents a numerical measurement or quantity.

It involves the collection of numeric data that quantifies the frequency or amount of a specific event (in this case, the number of robberies) occurring in your city.

More specifically, it is a continuous variable. Continuous variables are characterized by being able to take on any value within a certain range. In the case of the number of robberies reported, it can have decimal or fractional values.

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The words ‘of’ and ‘more than’ are often used in conjunction with percentages. The word ‘of’ is usually used to refer to a portion or part of a whole. For example, ‘50% of the population’ means that half of the population is being referred to.

In comparison, ‘more than’ is used to refer to a number that is higher than the one that is being referred to. For instance, ‘more than 50% of the population’ means that more than half of the population is being referred to.

The two words are related in that they both refer to a number or percentage, but their meanings differ. The word ‘of’ is used to refer to a portion of a number or percentage, while ‘more than’ is used to refer to a number or percentage that is higher than the one being referred to.

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Answer:

steps below

Step-by-step explanation:

5th level of Pascal triangle: 1,5,10,10,5,1

(1+2x)⁵ = 1*1⁵*(2x)⁰+5*1⁴*2x+10*1³*(2x)²+10*1²*(2x)³+5*1¹(2x)⁴+1*1⁰*(2x)⁵

           = 1 + 10x + 40x² + 80x³ + 80x⁴ + 32x⁵   .. (1)

(1-2x)⁵ =  1  - 10x + 40x² - 80x³  + 80x⁴ - 32x⁵  .. (2)

(1)+(2): (1+2x)⁵ + (1-2x)⁵ = 160x⁴ + 80x² +2

a + bx + cx ?? suppose it's ax⁴ + bx² + cx, if you have other set up.. adjust by yourself

a = 160,    b = 80,    c = 2

Answer:

B: Cost Management

Step-by-step explanation:

Answer:

-9 \(\frac{1}{4}\)

or

-9.25

Step-by-step explanation:

Answer:

-9.25

Step-by-step explanation:

Can i be made brainliest and the answer is at the top.

The pressure in the tyre when the volume is 140 cubic inches will be 30 pounds.

Boyle's law states that at a constant temperature, the pressure is inversely proportional to the volume. It means that the product of the pressure and the volume will remain constant for the given system.

Given that when air is pumped into an automobile tire, the pressure is inversely proportional to the volume. If the pressure is 35 pounds when the volume is 120 cubic inches.

The pressure will be calculated as:-

P₁V₁ = P₂V₂

( 35 x 120 ) = 140 x P₂

P₂ = ( 35 x 120 ) / 140

P₂ = 30 pounds

Therefore, when the volume is 140 cubic inches, the tire's pressure will be 30 pounds.

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The first step is to find the mean number of incorrect answers. Since there are 11 questions, and each question has a 50/50 chance of being answered incorrectly, we can expect the student to get 5.5 questions wrong on average.

Next, we need to calculate the variance. To do this, we can use the formula:

Variance = p(1-p)n

Where p is the probability of getting a question wrong (0.5), and n is the number of questions (11).

Variance = 0.5(1-0.5)11 = 1.375

Finally, we can find the standard deviation by taking the square root of the variance:

Standard deviation = sqrt(1.375) = 1.17 (rounded to two decimal places)

Therefore, the standard deviation of the number of incorrect answers on the exam is 1.17.

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120 m³ is cubic meters is the shed.

Given :

What in math is a cube?

The term "cube" refers to a solid three-dimensional shape in mathematics or geometry that has six square faces, eight vertices, and twelve edges. Also said to be a conventional hexahedron. Due to the fact that a cube is three dimensional, the space it occupies will also be three dimensional.

Six square faces surround a cube, hence combining the areas of all six square faces will yield the surface area. The cube formula's surface area is as a result. Cube surface area equals 6 (sides).

w = 6 m

l = 4 m

h = 5 m

a rectangular shed = 6 * 4 * 5

= 120 m³

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In a case whereby Mrs. Carter's famous peanut butter cookies call for 1 cup of peanut butter for every 1 2 of a cup of oil. Today, she wants to make a huge batch with 1 cup of oil the amount of peanut butter she should use can be expressed as  2 cups of peanut butter.

The concept that will be used is simplification. Base on the provided information from the question,

(1/2 cup of oil )= (1 cup of peanut butter)

we can represent (1 cup of oil)  as  (x)

The if we perfor a Cross Multipliplication we have:

(1/2x) =( 1 × 1)

x = (1 × 2/1)

x = 2 cups of peanut butter.

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The radius of the circle will be \(\sqrt{22}\).

In our question, we shall first extend QRS to the circle's point T.

According to the power of a point.

\(QP^{2}\)  =  QR*QT

\(6^{2}\)  =  3*QT

QT = 12

Since QR = 3, RT = 9.

Since RS = 3, ST = 6.

Draw OT and OR, creating a triangle(TSO) and triangle(RSO).

OT and OR are radii, Let the radius be r.

Use the Law of Cosines on these two triangles.

OT2  =  \(r^{2}\)  =  \(6^{2}\) + \(2^{2}\) - 2*6*2*cos(TSO)

OR2  =  r2  =  \(3^{2}\) + \(2^{2}\) - 2*3*2*cos(RSO)

Since these are equal:

\(6^{2}\) + \(2^{2}\) - 2*6*2*cos(TSO)  =  \(3^{2}\) + \(2^{2}\) - 2*3*2*cos(RSO)

40 - 24*cos(TSO)  =  13 - 12*cos(RSO)

Since angle(RSO) is supplementary to angle(TSO),  cos(RSO) = - cos(TSO)

40 - 24*cos(TSO)  =  13 + 12*cos(TSO)

27  =  36*cos(TSO)

0.75  =  cos(TSO)

Since  \(OT^{2}\)  =  \(r^{2}\)  =  \(6^{2}\) + \(2^{2}\) - 2*6*2*cos(TSO)

\(r^{2}\)  =  40 - 24*0.75  

\(r^{2}\)  =  22

r  =  \(\sqrt{22}\)

Hence the radius of the given circle will be \(\sqrt{22}\).

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Answer:

The question is incomplete, below is a possible match to the complete question:

The Chambers family has a net monthly income of $6,500. A circle graph titled Chambers Family Budget. Housing is 25 percent, Food is 20 percent, Savings is 7 percent, Transportation is 12 percent, medical is 10 percent, clothing is 18 percent, emergency fund is 8 percent. If the family decides to reduce its clothing budget by $200 a month, how much will the new clothing budget be? Round to the nearest dollar.

$161

$853

$970

$1,170

The correct answer is $970

Step-by-step explanation:

To calculate the old budget for clothing, let us first convert from percentage to monetary value, and this is done as follows:

Clothing = 18% of monthly income

where: monthly income = $6,500

∴ clothing = 18/100 × 6,500

= 0.18 × 6,500 = $1,170

old budget = $1,170

If the family decides to reduce its clothing budget by $200 a month, the new budget will be:

New budget = old budget - $200

= 1,170 - 200 = $970.

Therefore, the new budget will be $970

Answer:

C. $970

Step-by-step explanation:

edge 2021

The f(x) is defined as a Linear equation by

f(x) = (4x-25)/5, in which f(5) = -1 and f(0) = -5.

Given, that f(5) = -1 and f(0) = -5

Let f(x) be a function defined as,

f(x) = ax + b

Now, as we are given that

at x = 5 we have f(x) = -1,

On substituting the values we get,

-1 = a(5) + b

-1 = 5a + b

5a + b = -1 ..... (1)

Also, at x = 0 we have f(x) = -5.

On substituting the values we get,

-5 = a(0) + b

-5 = 0 + b

b = -5 ..... (2)

Now, substituting the value of b in Eq (1), we get

5a + (-5) = -1

5a - 5 = -1

On adding 5 on both the sides, we get

5a - 5 + 5 = -1 + 5

5a = 4

dividing both the sides by 5, we get

5a/5 = 4/5

a = 4/5

Now, we have a = 4/5 & b = -5

Putting the values of a & b in f(x) we get,

f(x) = (4/5)x +(-5)

f(x) = 4x/5 - 5

f(x) = (4x-25)/5

Hence, f(x) is defined as a linear equation by

f(x) = (4x-25)/5, in which f(5) = -1 and f(0) = -5.

f(x) is defined as (4x-25)/5

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Answer:

\((-\infty,0)\cup (0,5)\).

Step-by-step explanation:

Note: In the given options it should be negative infinity instead of -0 because -0 does not make any sense.

It is given that cube of a number is less than five times the square of the number.

Let the unknown number be x.

\(x^3<5x^2\)

\(x^3-5x^2<0\)

\(x^2(x-5)<0\)

This is possible when both factors \(x^2\text{ and }(x-5)\) have different sign.

We know that \(x^2\) is always greater than or equal to 0. So,

\(x-5<0\)

\(x<5\)

\(x\in (-\infty,0)\cup (0,5)\)

Because \(x^2(x-5)<0\) is not true for x=0, so, 0 is not included in the solution set.

Therefore, the solution set is \((-\infty,0)\cup (0,5)\).

Answer:

C

Step-by-step explanation:

We cannot calculate the value of the angle in the pentagon with the given information

The given information is not sufficient to determine the value of the angle in the pentagon.

A pentagon has five sides and five angles, but the given information only provides the measure of one angle and the length of one side. To determine the measure of the remaining angles, we would need additional information about the pentagon, such as the length of another side or the measure of another angle.

Therefore, we cannot calculate the value of the angle in the pentagon with the given information.

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The first thing we have to do is identify the possible outcomes of the coin and the cube independently.

Now to know which is the real sample space we need to know which are the possible solutions of the combination of both, in this case it would be the multiplication of their possible results