I want the answer only.

Answer:

2. C

3. BCEF

4. C

Step-by-step explanation:

2. In a function, the x value cannot have two y values (for example: if the points are (1,2) and (1,3) then that is not a function).

In this question, none of the x values repeat with multiple y values, so it is a function. the answer is C.

It is not D, because not all straight lines are functions. If the straight line is vertical, then there is only one x value and it has infinitely many values for y. So, not all straight lines are necessarily functions.

3. Range is the y values. The points are (3,4), (-2,3), (7,1), (2, 1/2)

Here, the y values are 4, 3, 1, and 1/2

Choices B,C,E,F are the answers.

4. If the domain is x\(\geq\)0, then 0 is the lowest we can plug into x.

y=2(0)+6

y=6

So, the answer is C. y\(\geq\)6

You were on the right track :)

The LCD of 1/(x+2)^2, 3/(x-2)^2, and 4/(x^2-4) is (x+2)^2(x-2)^2(x+2)(x-2) = (x+2)^3(x-2)^3.

To find the lowest common denominator (LCD) of three fractions, we need to identify the factors of each denominator and select those factors that are common to all denominators.The given fractions are: 1/ (x+2)^2, 3/ (x-2)^2, and 4/ (x^2-4).

The first denominator (x+2)^2 can be factored using the formula for the difference of two squares. The denominator of 3/(x-2)^2 can also be factored using the formula for the difference of two squares.

Finally, the denominator of 4/(x^2-4) can be factored using the formula for the difference of two squares and the formula for the sum of two squares.

So, 1/(x+2)^2, 3/(x-2)^2, and 4/(x^2-4) can be rewritten as follows:1/ (x+2)^2 = A/(x+2) + B/(x+2)^2. Multiplying both sides by (x+2)^2 gives:1 = A(x+2) + B ... (1)3/ (x-2)^2 = C/(x-2) + D/(x-2)^2.

Multiplying both sides by (x-2)^2 gives:3 = C(x-2) + D ... (2)4/ (x^2-4) = E/(x-2) + F/(x+2). Multiplying both sides by (x^2-4) gives:4 = E(x-2)(x+2) + F(x+2)(x-2) ... (3)

Now, we need to solve these equations for A, B, C, D, E, and F. First, we will solve equation (1) for A and B by substituting x = -2, which gives A = -1/4. Then we will substitute x = -2 again and solve for B, which gives B = 1/4. Next, we will solve equation (2) for C and D by substituting x = 2, which gives C = 3/4.

Then we will substitute x = 2 again and solve for D, which gives D = -3/4. Finally, we will solve equation (3) for E and F by substituting x = 2 and x = -2, which gives E = 1/2 and F = 1/2.

Now, we have A = -1/4, B = 1/4, C = 3/4, D = -3/4, E = 1/2, and F = 1/2. The LCD is the product of all the factors that appear in the denominators of the fractions, each raised to the highest power that appears.

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Answer:

68miles

Step-by-step explanation:

1/8 of an hour (60mins) = 7.5 mins

7.5mins : 8.5miles  

x8                 x8

60mins : 68 miles

(If this is wrong please comment on this)

Answer:

68 miles.

Step-by-step explanation:

Sam has driven the distance of  \(8\frac{1}{2}\) miles in 1/8 of an hour, we are asked how far he drove in 1 hour.

Assuming Sam drove at the same speed for 1 hour, we should multiply  \(8\frac{1}{2}\) by 8 to represent the unknown distance.

\(8\frac{1}{2} \times \frac{8}{1} = 68.\)

During the time length of 1 hour, Sam has driven 68 miles.

The calculated measure of the angle D is (c) 32 degrees

From the question, we have the following parameters that can be used in our computation:

The triangles ABC and DEF

The triangles are similar triangles

This means that the corresponding angles are equal

Given that

A = 32 degrees

And the corresponding angle is D

We have

D = 32 degrees

Hence, the measure of the angle is (c) 32 degrees

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Answer:

(-½, ½)

Step-by-step explanation:

r = -2x.  The geometric series converges when -1 < r < 1.

-1 < -2x < 1

½ > x > -½

The interval of convergence is (-½, ½).

Answer: 559.60$ before tax

              593.176$ or 593.18$

Step-by-step explanation:

Answer:

$46.63

Step-by-step explanation:

A dozen (12) computer disks costs $69.95

8 is two thirds of a dozen, and so 8 computer disks will cost two thirds of the price.

69.95 * \(\frac{2}{3}\) = $46.63 (rounded to nearest cent)

Therefore the price of 8 disks is $46.63

To solve for the middle range of mean:

The middle 95% of the pregnancies are within two standard deviations of the mean:

The middle 95% of the pregnancies are within two standard deviations of the mean are 230 and 298

The middle 95% of the average length of pregnancies' would be a 95% CI: mean +/- z-critical * standard deviation/square root(sample size)

Critical value for 95% confidence interval = 1.96

The middle 95% of the average length of pregnancies' would be a 95% CI: between 258.018 and 269.982

Answer:

option two is the right choice for it

Step-by-step explanation:

i just had a feeling like it is right and because im pretty good at this

Answer:

3 1/4 ÷ 2 2/3 = 3 1/8

Answer:

The answer is 3 1/8. Hope this helps :)

Step-by-step explanation:

The missing parts of the statements using trigonometric ratios are respectively:

trigonometric ratio

0.6428

x feet

90 feet

45 ft

30°

The angle of depression is simply the same as the angle of declination as both are formed below the horizontal axis with a downward slope.

Thus, if the surveyor knows the angle of declination, then he can use trigonometric ratio to get the length X in the diagram.

The trigonometric ratio to be used is cosine since we have the hypotenuse and want to find the adjacent side. Thus;

The cosine of a 50° angle is 0.6428

This cosine represents when the length x feet is divided by 90 feet.

Now, if the angle of declination changed to 60°, the cosine would be 0.5 and the new length x will be 90 * 0.5 = 45 ft.

The angle of inclination will be 30°

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Answer:

xDbdjajjfjeqjsufuirueiiqd

Answer:

she bought 5 shakes

Step-by-step explanation:

shakes: $3.39

tea: $2.50

2.50 + 3.39s = 19.45

3.39s = 16.95

s = 16.95 ÷ 3.39

s = 5

Check:

2.50 + 3.39(5) = 19.45

or

2.50 + 3.39 + 3.39 + 3.39 + 3.39 + 3.39 =  19.45

When x is equal to 1, the Function f(x) = -4x - 5 yields a value of -9.

The find ƒ(1) for the function f(x) = -4x - 5, we need to substitute x = 1 into the function and evaluate the expression.

Replacing x with 1, we have:

ƒ(1) = -4(1) - 5

Simplifying further:

ƒ(1) = -4 - 5

ƒ(1) = -9

Therefore, when x is equal to 1, the value of the function f(x) = -4x - 5 is ƒ(1) = -9.

Let's break down the steps taken to arrive at the solution:

1. Start with the function f(x) = -4x - 5.

2. Replace x with 1 in the function.

3. Evaluate the expression by performing the necessary operations.

4. Simplify the expression to obtain the final result.

In this case, substituting x = 1 into the function f(x) = -4x - 5 gives us ƒ(1) = -9 as the output.

It is essential to note that the notation ƒ(1) represents the value of the function ƒ(x) when x is equal to 1. It signifies evaluating the function at a specific input value, which, in this case, is 1.

Thus, when x is equal to 1, the function f(x) = -4x - 5 yields a value of -9.

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Answer:

11

Step-by-step explanation:

Answer:

this is not belongs to mathematics

Step-by-step explanation:

Answer:

The answer is $0.07 cents per inch

Step-by-step explanation:

If you take 6 feet into inches (72)

and divide the total cost by the amount of inches (5.04 / 72)

You get the answer

The equation of a line in standard form is written as:

Now, two lines are parallel if and only if their slopes are equal, that is:

The slope of a line is given by:

where (x1,y1) and (x2,y2) are points through the line. From the graph we notice that the line passes through the points (0,3) and (5,-1) then its slope is:

This means that the lin in the graph has a slope os -4/5 and hence the paralell line we are looking for has slope -4/5 as well.

Once we know the slope of the line we want we just need a point; the porblem states that the line passes through the origin, then it passes through the point (0,0). The equation of a line with slope m that passes throught the point (x1,y1) is given by:

Plugging the values of the slope and the point we have that:

Finally we just write the equation in standard form, therefore the equation of the line is:

Therefore, the package with 40 hooks is the better buy in terms of cost efficiency.

To determine which package is the better buy, we need to compare the cost per hook for each package.

For the package of 25 hooks costing $9.95, we divide the total cost by the number of hooks:

Cost per hook = $9.95 / 25 = $0.398

Rounding to the nearest cent, the cost per hook is $0.40.

For the package of 40 hooks costing $13.99, we divide the total cost by the number of hooks:

Cost per hook = $13.99 / 40 = $0.3498

Rounding to the nearest cent, the cost per hook is $0.35.

Comparing the two costs per hook, we can see that the package with 40 hooks for $13.99 offers a better deal, as the cost per hook is lower at $0.35.

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The amount paid for the bananas is $0.8775.

Proportions are defined as the concept where two or more ratios are set to be equal to each other.

Suppose we have two ratio p : q and r : s.

If both these ratios are proportional, then we can write it as p: q : : r : s.

This is same as p : q = r : s or p/q = r/s

Bananas are on sale for $0.39 per pound. Mr. Schurter bought 3 x 3 /4 pounds of bananas.

Cost of 1 pound of banana = $0.39

Let x be the cost of 3 × 3/4 pounds of banana.

3 × 3/4 pounds = 9/4 pounds

By proportional concept,

1 : 0.39 = 9/4 : x

1 / 0.39 = 9/4 / x

Cross multiplying, we get,

1 × x = (9/4) × 0.39

x = 3.51 / 4

x = 0.8775

Hence the cost of 3 × 3/4 pounds of banana is $0.8775.

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Answer:

what's that

Step-by-step explanation:

Answer:

Im pretty sure it's 5.25 cups of flour

Step-by-step explanation:

so we know that it takes 3 cups for 8 people and we don't know the amount for 14 people so write it as a fraction and cross multipy

For the equation

8/3=14/x

The cross product is

8*x=3*14

Solving for x

x=3×14/8

and reducing

x=5.25

The surface area of the composite solid is given as follows:

194 units squared.

The surface area of a rectangular prism of height h, width w and length l is given by:

S = 2(hw + lw + lh).

This means that the area of each rectangular face of the prism is calculated, and then the surface area is given by the sum of all these areas.

The prism in this problem is composed as follows:

Hence the surface area of the prism is given as follows:

S = 2(4 x 7 + 4 x 3 + 3 x 7) + 4 x 3 + 5² + 5 x 7

S = 194 units squared.

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When it comes to arrays in mathematics, it usually involves objects or numbers that are arranged in rows and columns.In order for a set of squares to be considered an array, it must meet certain requirements. These requirements are:All rows must have the same number of squares. All columns must have the same number of squares. Squares must be organized in an orderly manner. A set of squares that does not meet these requirements is not an array.

An array is a set of objects or values that are organized in a specific order. It is used in programming, mathematics, and other fields to make data manipulation and analysis easier.

When it comes to arrays in mathematics, it usually involves objects or numbers that are arranged in rows and columns.In order for a set of squares to be considered an array, it must meet certain requirements. These requirements are:All rows must have the same number of squares. All columns must have the same number of squares. Squares must be organized in an orderly manner. A set of squares that does not meet these requirements is not an array.

For example, if a set of squares is arranged in a random or disorganized manner, it cannot be considered an array because it does not meet the orderly requirement. Additionally, if the number of squares in each row or column is different, it cannot be considered an array because it does not meet the uniformity requirement.

Overall, it is important to remember that an array is a specific type of organization and cannot be applied to any random set of objects or values.

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The mean of the number of shoes according to the obtained results is; 8.49.

The median of the number of pairs of shoes obtained is; 9.

It follows from the complete task content that the mean and median of the data set are to be evaluated;

Since the mean is the average of all obtained data values, it follows from the mean formula;

Mean = Sum Total/Total Frequency

Mean = { ( 8 × 4 ) + ( 4 × 5 ) + .......+ (13 × 4) } / 65

Mean = 552/65

Mean = 8.49.

Also, the median of the set of 65 data values can be guessed to be the 33rd term.

On this note, the data value which corresponds to a cumulative frequency of 33 upon orderly arrangement is the median term.

Hence, since; 8 + 5 + 4 + 4 + 7 = 28; Hence, upon addition of 14, we have; 42.

Therefore, the median of the number of pairs of shoes is; 9 pairs of shoes.

Remark; The complete task requires that the mean and median be determined.

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Answer: 1.  1*f*(x)-(-(x+4)^2-4)=0

STEP

1

:

Equation at the end of step 1

 fx - x2 - 8x - 12  = 0

STEP

2

:

Solving a Single Variable Equation:

2.1     Solve   fx-x2-8x-12  = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    2*f*(x)-((x-1)^2)=0

STEP

1

:

1.1     Evaluate :  (x-1)2   =    x2-2x+1

Equation at the end of step

1

:

 2fx - x2 + 2x - 1  = 0

STEP

2

:

Solving a Single Variable Equation:

2.1     Solve   2fx-x2+2x-1  = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

Answer:

(-1,4)

Step-by-step explanation:

to find out we just fill in the values to see if it’s true

(x,f(x))

4=-1^2+3

4=1+3

4=4

True

-4=-1^2+3

-4=1+3

-4=4

Not true

-4=1^2+3

-4=1+3

-4=4

Not true

-1=-4^2+3

-1=16+3

-1=19

Not true

Hopes this helps please mark brainliest

The total probability of filling oil is 0.60

a. P(oil) = 1 - P(no oil) = 1 - 0.40 = 0.60

b.P(soil ∩ high quality oil) = (0.45)(0.15) = 0.067

P(soil ∩ medium quality oil) = (0.15)(0.15) = 0.022

P(soil ∩ no oil) = (0.40)(0.40) = 0.16

New probabilities,

P(high quality oil | soil) = 0.067 / (0.067+0.022+0.16) = 0.067/0.269 = 0.269

P(medium quality oil | soil) = 0.022 / (0.067+0.022+0.16)  = 0.022/0.269 = 0.088

P(no oil | soil) = 0.09 / (0.067+0.022+0.16) = 0.09/0.269 = 0.361

New probability of finding oil,

P(oil|soil)= 1 - P(no oil | soil) = 1 - 0.361 = 0.639

So the company has a lower chance of finding oil given that they find the particular soil.

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The equivalent fractions of 7/11 are 14/22, 21/33, 28/44 and 35/55

There are infinitely many numbers equivalent to 7/11

since 7/11 is a fraction that can be simplified in different ways.

We can multiply the numerator and denominator with the same number to get the equivalent fractions

7/11×2/2 = 14/22

7/11×3/3= 21/33

7/11×4/4 =28/44

7/11×5/5 =35/55

Hence, the equivalent fractions of 7/11 are 14/22, 21/33, 28/44 and 35/55

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