Which will result in a difference of squares? (–7x + 4)(–7x + 4) (–7x + 4)(4 – 7x) (–7x + 4)(–7x – 4) (–7x + 4)(7x – 4)
merry Christmas y'all​

Answer:

send a pic, and I will edit this so you can know the answer but send a pic thx

Step-by-step explanation:

The domain and range are:

D: {2, 3, 6}

R: {70, 80, 90, 100}

And it is not a function.

A relation maps elements x into elements y using the notation (x, y).

The domain is the set of the inputs (set of the possible values of x) and the range is the set of the outputs (possible values of y).

And a relation is a function if each value in the domain is mapped into only one value of the range.

Here the relation is:

{ (6, 90), (2, 70), (6, 80), (3, 100)}

So the domain is:

D: {2, 3, 6}

The range is:

R: {70, 80, 90, 100}

And it is not a function because the input 6 is mapped into two different outputs.

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Given:

Equation of line is,

Answer:

6.998 rounded to 7.00

Step-by-step explanation:

Answer: Mean Score = 50    Range = 31

Step-by-step explanation:

58+76+40+35+46+45+0+100=400

400/8=50

Range = subtract smallest number from largest number

54 - 23 = 31

Answer:

13

Step-by-step explanation:

because wothe the power of God and anime-

The required value of the expression 2c - a is 1.

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement.

It's possible to multiply, divide, add, or subtract with this mathematical operation.

An expression's structure is as follows: Expression: (Math Operator, Number/Variable, Math Operator)

An expression in mathematics is made up of numbers, variables, and functions (such as addition, subtraction, multiplication or division, etc.)

So, we have:

x²+3x-28

x²+7x-4x-28     [28=7×2×2, 7-(2×2)=7-4=3]

x(x+7)-4(x+7)

(x+7)(x-4)$

In light of the fact that x2+3x-28 can be expressed as (x+a)(x-b).

in order to compare (x+7)(x-4) and (x+a)(x-b).

As a result, a = 7 and b = 4.

Similarly,

x²-10x-56$

x²-14x+4x-56       [ 56= 7×2×2×2, - (7×2)+(2×2) = -14+4=10]

x(x-14)+4(x-14)

(x-14)(x+4)

Given that (x+2b)(x+c) can be used to represent x2-10x-56.

Consequently, compare (x-14)(x+4)and (x+2b)(x+c).

Now,  c=4    [∵c>0].

Then,

2c-a

(2×4)-7

8-7

1

Therefore, the required value of the expression 2c - a is 1.

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Answer:

Option (3)

Step-by-step explanation:

Since density on an element = \(\frac{\text{Mass}}{\text{Volume}}\)

Volume of the water in the aquarium = volume of the aquarium

                                                              = Length × width × height

                                                              = 10 × 5 × 5

                                                              = 250 cm³

We know density of the water = 1 gram per cm³

By putting these values in the formula,

1 = \(\frac{\text{Mass}}{250}\)

Mass = 250 g

Therefore, Option (3) will be the answer.

Answer:

  27.57 in

Step-by-step explanation:

You want the length of the longer diagonal of a rhombus with side lengths 14 inches and obtuse angle 160°.

The law of cosines can be used to find the diagonal length. The length of the third side (c) is given by ...

  c² = a² +b² -2ab·cos(C)

where a and b are the other two sides, enclosing angle C.

  c² = 14² +14² -2·14·14·cos(160°)

  c² = 392 -392·cos(160°) ≈ 760.35951

  c ≈ 27.5746

The longer diagonal is about 27.57 inches long.

Answer:

Step-by-step explanation:

fars

Answer:

The answer is: 7/3 or if ya want it simplified ( 2 1/3)

~ hope this helped, have a gr8 day/ night my friend!~

Step-by-step explanation:

Answer:

2 and 1/3

Step-by-step explanation:

First, we want to note two things:

We can describe this with an inequality:  x ≥ -10
Be sure you use ≥ and not >, since -10 is included.

We can describe this with interval notation: [ -10, infty )
Be sure you use [ and not ( on -10, since -10 is included.

You can also use set-builder notation: { x | x ≥ -10 }

What is the greatest common factor of 40, 20, and 30?

its 40

The experiment involves two factors, six treatments, and the response variable is the reduction in pollen allergy symptoms among the experimental units.

The experiment being conducted by the company involves two forms of a drug, namely A and B, and aims to determine which form is more effective in reducing pollen allergy symptoms, and whether the daily amount should be split into one, two, or three doses. There are two factors involved in the experiment: the form of the drug (A and B) and the number of doses (one, two, or three). The drug form factor has two levels (A and B), while the dose factor has three levels. Therefore, there are a total of six treatments in the experiment, which are as follows: A1, A2, A3, B1, B2, and B3. The response variable in the experiment is the reduction in pollen allergy symptoms, and the experimental units are the volunteers who suffer from pollen allergies. A control group can be incorporated into the experiment by randomly assigning some volunteers to receive a placebo or an existing allergy medication, instead of the new drug. A control group would be beneficial in order to compare the effectiveness of the new drug with the existing treatment, and to ensure that any observed effects are not due to chance or other factors.

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Answer:

frequency=speed/wavelength

f=250/50

f=50hz

Therefore, the 98% confidence interval for the true proportion of customers who click on ads on their smartphones is approximately (0.369, 0.531).

To compute the 98% confidence interval for the true proportion of customers who click on ads on their smartphones, we can use the formula for a confidence interval for a proportion.

Confidence Interval = Sample Proportion ± (Critical Value) * (Standard Error)

Given:

Sample Proportion (p) = 0.45

Sample Size (n) = 150

Confidence Level = 98%

To find the critical value, we can use a Z-table. For a 98% confidence level, the critical value is approximately 2.33.

The standard error is calculated using the formula:

Standard Error = √((p * (1 - p)) / n)

Plugging in the values, we have:

Standard Error = √((0.45 * (1 - 0.45)) / 150)

≈ 0.0363

Now we can calculate the confidence interval:

Confidence Interval = 0.45 ± (2.33 * 0.0363)

Calculating the upper and lower bounds of the confidence interval:

Upper bound = 0.45 + (2.33 * 0.0363)

≈ 0.531

Lower bound = 0.45 - (2.33 * 0.0363)

≈ 0.369

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Answer:

Step-by-step explanation:

The solution of this systems of equations is the intersection of both graphs

Let's kick start with a:

a)

\(y+12 = x^2+x \\ \\ x+3 = y\)

From the first attached diagram by using graph:

the solution is the set {(-5, 8), (3, 0)}

b)

\(y-15=x^3+4x \\ \\ x-y =1\)

Using the graph tool from the last diagram below;

the solution is the set⇒( there is no solution)

c)

\(y+5 =x^2-3x \\ \\ 2x+y =1\)

From the second attached diagram by using graph:

the solution is the set {(-2, 5), (3, -5)}

d)

\(y-6=x^2-3x \\ \\ x+2y =2\)

the solution is the set ⇒ there is no solution (shown in the last diagram  below)

e)

\(y-17=x^2-9x \\ \\ -x+y =1\)

the solution is the set {(2, 3), (8, 9)} as shown in the third diagram

f) Lastly:

\(y-15=-x^2+4x \\ \\ x+y =1\)

Using the graph tool from the fourth diagram below;

the solution is the set  {(-2, 3), (7, -6)}

The solution to the system of equations are the truth values of the system of equations

\(\mathbf{(a)\ y + 12 = x^2 + x,\ x + 3 = y}\)

The graphs of the equations intersect at (-5,8) and (3,0).

So, the solution set is {(-5,8), (3,0)}

\(\mathbf{(b)\ y - 15 = x^3 + 4x,\ x - y = 1}\)

The graphs of the equations do not intersect

So, the system has no solution

\(\mathbf{(c)\ y + 5 = x^2 - 3x,\ 2x + y = 1}\)

The graphs of the equations intersect at (-2,5) and (3, -5).

So, the solution set is {(-2, 5), (3, -5)}

\(\mathbf{(d)\ y - 6 = x^2 - 3x,\ x + 2y = 2}\)

The graphs of the equations do not intersect

So, the system has no solution

\(\mathbf{(e)\ y - 17 = x^2 - 9x,\ -x + y = 1}\)

The graphs of the equations intersect at (2,3) and (8,9).

So, the solution set is {(2, 3), (8, 9)}

\(\mathbf{(f)\ y - 15 = -x^2 + 4x,\ x + y = 1}\)

The graphs of the equations intersect at (-2,3) and (7,-6).

So, the solution set is {(-2, 3), (7, -6)}

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Answer:

1dm = 10cm

Simple as it is

Answer:

The term “Deci” means one-tenth, and therefore decimetre means one-tenth of a meter. Since a meter is made up of 100 cm, one-tenth of 100 cm is 10 cm. Thus one decimeter measures 10 cm.

Step-by-step explanation:

hope it's help!

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Answer:

Triangle 1 -    \(\sqrt{29\) (if they want simplest radical form) or 5.4 (if they want to the nearest tenth)

Triangle 2-    i couldnt figure this one out- may not be true

Pythagorean Theorem is...   C) true for all right triangles

Step-by-step explanation:

Answer:

Im not sure about a but, b= 38

Step-by-step explanation

b: 90 - 52 = 38

*90 because it is a right angle

Answer: The study will produce results regarding the effect of the portable water purification systems only on lake water in that region.

Step-by-step explanation: I got it right

After unit conversion , the statement is 30 ounces < 2 pounds.

What is unit conversion?

The same feature is expressed in a different unit of measurement through a unit conversion. Time can be stated in minutes rather than hours, and distance can be expressed in kilometres rather than miles, or in feet rather than any other unit of length.

Here the given is 32 ounces and 2 pounds,

We know  that , if two values in same measurement then we can easily compare them.

Here we know that 1 pound  = 16 ounces. Then

=> 2 pounds = 16*2 = 32 ounces.

Hence the statement is 30 ounces < 2 pounds.

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Answer:

Answer is 0.002

Step-by-step explanation:

15÷7500 = 0.002

Answer:

ampota ma,pakyu

Step-by-step explanation:

what is the answer dapalon taka karun

Answer:

its 5.

Step-by-step explanation:

The law of motion for the unemployment rate is given by the equation: Δu = fu - s(1 - u). The correct option is (a) Δu = fu - s(1 - u).

The equation represents the change in the unemployment rate (Δu) over time. Let's break down the components of the equation:

- fu represents the job finding rate (f) multiplied by the current unemployment rate (u). This term represents the number of unemployed individuals who find jobs and transition into employment, which decreases the unemployment rate.

- s(1 - u) represents the separation rate (s) multiplied by the difference between one and the current unemployment rate (1 - u). This term represents the number of individuals who become separated from their jobs and enter unemployment, which increases the unemployment rate.

Therefore, the equation Δu = fu - s(1 - u) combines the effects of job finding and separation rates on the change in the unemployment rate.

Thus, the correct option is (a) Δu = fu - s(1 - u)

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The cost of each lily is $3.25, and the cost of each rose is $6.50 according to the first arrangement and second arrangement.

Let's assume the cost of each lily is represented by "L" and the cost of each rose is represented by "R." Based on the given information, we can form a system of linear equations.

From the first arrangement, we know that 5 lilies and 1 rose cost $19.75. This can be written as the equation 5L + R = 19.75.

From the second arrangement, we know that 6 lilies and 3 roses cost $27.75. This can be written as the equation 6L + 3R = 27.75.

To solve this system of equations, we can use the method of substitution or elimination. Let's use the elimination method.

Multiply the first equation by 3 and the second equation by -1 to eliminate the R term:

15L + 3R = 59.25

-6L - 3R = -27.75

Adding the equations, we get:

9L = 31.50

Divide both sides by 9:

L = 3.50

Now substitute the value of L back into one of the original equations. Let's use the first equation:

5(3.50) + R = 19.75

17.50 + R = 19.75

Subtract 17.50 from both sides:

R = 2.25

Therefore, the cost of each lily is $3.50, and the cost of each rose is $2.25.

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Answer:

the answer is 5 1/4

Answer: it’s d

Step-by-step explanation:

Answer:

a) P(X=x) = p× (1-p)^(x-1)

b) P(X=3) = 0.081

c) P(X≤5) = 0.40951

d) Mean of X= 10

e) Var(X)= 90

Step-by-step explanation:

This is a question on geometric distribution.

In geometric distribution, we have two possible outcomes for each trial (success or failure) for independent number of binomials series trial. Also the probability of success is constant for each trial.

This discrete probability distribution is represented by the probability density function: f(x) = p× (1-p)^(x-1)

For a random variable with a geometric distribution, we do not know the number of trials we will have = {1, 2, 3, ...}

We stop the trials when we get a success.

From the question, there are 10 numbers

The probability of success = p = 1/10

For the solutions of the question from (a-e), See attachment below.

f(x) = P(X= x)

Where P(X= x) is the probability of X taking on a value x

Answer: X=19

Step-by-step explanation:

Add up everything and set it to 180 degrees so (5x+4)+(x-2)+(3x+7)=180

next 9x+9=180

then 9x=171

x=19

If you want to check by pluggin in value for x for all angles and it should equal 180 added up

Angle POS= 99

Angle SOR= 17

Angle ROQ= 64

99+17+64=180 degrees

Answer:

i have made it in above picture

hope it helps