Which value of f 3f+5=32 a true statement
Choose 1 answer


A
f=6


B
f=8

C
f=9


D
f=12

Answer: x = 58

Step-by-step explanation:

The angles are alternating interior angles. This means that the angles are equal.

So x = 58

The correct answer is D. The line intersects the parabola at (0, 4) and (1, 0).

Answer: x = 6/7 or 0.857142

Answer:

A

Step-by-step explanation:

becaauss im smart and trust me im smart

Answer:

Pi (π) is the constant used in equations to find all of the dimensions of circles and spheres

Step-by-step explanation:

Answer:

The profitability index (PI) is a measure of a project's or investment's attractiveness. The PI is calculated by dividing the present value of future expected cash flows by the initial investment amount in the project.

Step-by-step explanation:

Answer:

This correlation simply means that, in every twin whether identical or fraternal twins, there is a relation between their IQ scores and when they are raised together.

Regarding to the test carried out, it showed that, when an identical twin is raised together, their IQ score tends to be higher in direct comparison with a fraternal twin that was raised together. That is, if the fraternal twin IQ is 100, then, the identical twin IQ is going to be above 100 (probably around 120)

Step-by-step explanation:

Considering the definition of vertex, the vertex form of y = –3x² – 12x – 2 is y=a(x+2)²+10 , where (-2,10) is the vertex of the parabola.

The function f(x) = ax²  + bx + c

with a, b, c real numbers and a ≠ 0, is a function  quadratic expressed in its polynomial form (It is so called because the function is expressed by a polynomial).

The quadratic function can be expressed by the vertex form of a quadratic equation: y=a(x−h)²+k , where (h,k)= vertex of the parabola.

The formula to find the value x of the vertex of a quadratic equation is \(x=\frac{-b}{2a}\)

To calculate the value of y of the vertex, it is necessary to find the numerical value of "x vertex" in the polynomial expression. This is:

(h,k)=  (\(\frac{-b}{2a}\), \(f(\frac{-b}{2a})\))

In this case:

Replacing in the formula to find the value x of the vertex of a quadratic equation, you get:

\(x=\frac{-(-12)}{2(-3)}\)

Solving:

\(x=\frac{12}{-6}\)

x= -2

The value of y of the vertex can be calculated as:

y = –3×(-2)² – 12×(-2) – 2

Solving:

y= –3×4 – 12×(-2) – 2

y= –12 +24 – 2

y=10

Finally, the vertex form of y = –3x² – 12x – 2 is y=a(x+2)²+10 , where (-2,10) is the vertex of the parabola.

Learn more about vertex form of a cuadratic function:

https://brainly.com/question/21724943

https://brainly.com/question/13773803

https://brainly.com/question/15280010

#SPJ4

a. The equation of the perimeter is x + x + x + 2x + 2x = 42. Option A

b. x = 6 centimeters

c. The lengths are 6 centimeters , 6 centimeters , 6 centimeters  , 12 centimeters  and 12 centimeters respectively.

It is important to note that the formula for calculating the perimeter of a pentagon is expressed as;

Perimeter = 5a

Where: 'a' represents the length of one of its side

From the information given, we have that the perimeter of the geometrical figure is the sum of its sides.

Given the sides;

x , x , x, 2x , 2x

Now, substitute the values into the formula for perimeter

x + x + x + 2x + 2x = 42

collect like terms and add them

7x = 42

Now, make 'x' the subject of formula by dividing both sides by the coefficient of the variable 'x'

We have;

7x/7 == 42/7

x = 6 centimeters

But the length of the sides is determined by substituting the value of x as 6

x = 6 centimeters

x = 6 centimeters

x = 6 centimeters

2x = 2(6) = 12 centimeters

2x = 2(6) = 12 centimeters

Hence, the lengths are 6, 6, 6 , 12 and 12 centimeters respectively.

Learn more about perimeter here:

https://brainly.com/question/17297081

#SPJ1

The number of 5-digit numbers in which every two neighboring digits differ by 3 is 144.

To find the number of 5-digit numbers in which every two neighboring digits differ by 3, we can start by considering the possible values for the first digit.

The first digit can be any number from 1 to 9 (since it's a 5-digit number). Let's analyze the possibilities:

If the first digit is 1, the second digit can be either 4 or 8.

If the first digit is 2, the second digit can be either 5 or 9.

If the first digit is 3, the second digit can be either 6 or 0.

If the first digit is 4, the second digit can be either 7 or 1.

If the first digit is 5, the second digit can be either 8 or 2.

If the first digit is 6, the second digit can be either 9 or 3.

If the first digit is 7, the second digit can be either 0 or 4.

If the first digit is 8, the second digit can be either 1 or 5.

If the first digit is 9, the second digit can be either 2 or 6.

After determining the possibilities for the first two digits, we can continue this pattern for the next three digits. Each digit will have two possible options, determined by the previous digit.

Hence, the total number of possibilities is obtained by multiplying the number of choices for each digit

Number of possibilities = 9 (options for the first digit) × 2 (options for the second digit) × 2 (options for the third digit) × 2 (options for the fourth digit) × 2 (options for the fifth digit)

= 9 × 2⁴

= 9 × 16

= 144

Therefore, the number of 5-digit numbers in which every two neighboring digits differ by 3 is 144.

To know more about  numbers click here :

https://brainly.com/question/31968917

#SPJ4

Answer

The right table is the second one  it presents proportional relationship

Step-by-step explanation:

The ordered pairs that represent a proportional relationship are:

X      Y

-1       1

-3       3

-5        5

Option B is the correct answer.

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

From table B.

X      Y

-1       1

-3       3

-5        5

We can make a proportional equation as:

y ∝ x

y = kx

Now,

From the table,

(-1, 1), (-3, 3), and (-5, 5)

It is in the form of (x, y).

So,

y = kx

1 = k (-1)

k = -1

We see that,

y = -1(x)

y = -1 x 3 = -3

y = -1 x 5 = -5

This is true for table B.

Thus,

The ordered pairs that represent a proportional relationship is:

X      Y

-1       1

-3       3

-5        5

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ7

The case-fatality rate among residents with TB over the course of the year is approximately 33.3%. None of the answer choices provided (25.0%, 14.3%, 20.0%) match this calculated value, so the correct answer is "None of the above."

The case-fatality rate among residents with TB over the course of the year can be calculated by dividing the number of residents who died from TB by the total number of residents with TB at the start of the study. Let's calculate it based on the given information.

On January 1st, there were 30 residents with existing cases of TB. On July 1st, 10 of these residents died from their disease.

Case-Fatality Rate = (Number of TB deaths / Number of residents with TB) * 100%

Case-Fatality Rate = (10 / 30) * 100% ≈ 33.3%

Therefore, based on the given information, the case-fatality rate among residents with TB over the course of the year is approximately 33.3%. None of the answer choices provided (25.0%, 14.3%, 20.0%) match this calculated value, so the correct answer is "None of the above."

Learn more about residents here

https://brainly.com/question/2621599

#SPJ11

Answer: 4

Step-by-step explanation:

9514 1404 393

Answer:

  D.  1500

Step-by-step explanation:

7245 rounded to the nearest hundred is 7200. (Last two digits are less than 50.)

5680 rounded to the nearest hundred is 5700. (Last two digits are 50 or more, so we round up.)

Then the estimated difference is ...

  7200 -5700 = 1500 . . . . matches choice D

Answer:

the guy above me is right

Step-by-step explanation:

The solution to the given system of equations using Cramer's rule is \(x_1 = -14\) and \(x_2 = -14\).

To solve the given system of equations using Cramer's rule, we need to find the values of the variables \(\(x_1\) and \(x_2\)\). The system of equations can be written as:

Equation 1: \(0.2x_1 - 0.15x_2 + x_2 = 1.4\)

Equation 2: \(x_1 + x_2 - 2x_2 = 0\)

Equation 3: \(2x_1 + x_2 + 5x_3 = 11.5\)

To apply Cramer's rule, we need to find the determinants of different matrices.

First, let's find the determinant of the coefficient matrix, \(D\):

\(\[D = \begin{vmatrix} 0.2 & -0.15 \\ 1 & -1 \end{vmatrix} = (0.2 \times -1) - (-0.15 \times 1) = -0.05 + 0.15 = 0.10\]\)

Next, we'll find the determinant of the \(x_1\) matrix, \(D_1\), by replacing the \(x_1\) column in the coefficient matrix with the constant terms:

\[D_1 = \begin{vmatrix} 1.4 & -0.15 \\ 0 & -1 \end{vmatrix} = (1.4 \times -1) - (-0.15 \times 0) = -1.4\]

Similarly, we'll find the determinant of the \(x_2\) matrix, \(D_2\):

\[D_2 = \begin{vmatrix} 0.2 & 1.4 \\ 1 & 0 \end{vmatrix} = (0.2 \times 0) - (1.4 \times 1) = -1.4\]

Now, let's calculate the values of \(x_1\) and \(x_2\) using Cramer's rule:

\[x_1 = \frac{D_1}{D} = \frac{-1.4}{0.10} = -14\]

\[x_2 = \frac{D_2}{D} = \frac{-1.4}{0.10} = -14\]

Therefore, the solution to the given system of equations using Cramer's rule is \(x_1 = -14\) and \(x_2 = -14\).

Learn more about Cramer's rule here

https://brainly.com/question/10445102

#SPJ11

Answer:

Mean is 13.5

Median is 10

Step-by-step explanation:

Answer:

Mean: 13.5

Medain: 10

Answer:

The result can be shown in multiple forms.

Exact Form:

3940939409

Decimal Form:

437.¯7437.7‾

Mixed Number Form:

43779

Step-by-step explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

The conclusion that can be drawn from Jimmy's income with the change in insurance is that Jimmy's net income would decrease.

When expenses rise, net income will decrease. Net income is calculated by subtracting expenses from gross income, so if expenses increase, the amount of net income will decrease.

This means that with the increase in insurance by $ 50, Jimmy can expect that his net income would decrease by a total amount of $ 50 which is the amount the insurance increased by.

Find out more on insurance expenses at https://brainly.com/question/23282485

#SPJ1

7 elements will be compared to find 25 using linear search

To learn more about linear search with the given link

https://brainly.com/question/15178888

#SPJ4

Answer:

I think you are right.Because im sure

Complete question :

Elena loves to go fishing. Each time she catches a fish, there is a 70, percent chance that it is a northern pike and a 30, percent chance it is a walleye. Let X be the random variable that represents the number of northern pike Elena gets if she catches 2 fish. Find the expected value of the number of Northern pikes Elena catches

Answer: 1.4

Step-by-step explanation:

P(Northern pike) = 0.7

P(walleye) = 0.3

If 2 fishes are caught :

Number of northern pike (x) :

X = 0

P(walleye 1 st) * p(walleye 2nd) = (0.3 * 0.3) = 0.09

X = 1

P(walleye 1st)*P(Northern pike 2nd) OR P(Northern pike 1st)*P(Walleye 2nd)

= (0.3 * 0.7) + (0.7 * 0.3)

= 0.21 + 0.21

= 0.42

P(x = 2)

P(northern pike 1st) * P(northen pike 2nd)

0.7 *0.7 = 0.49

X: ______ 0 _____ 1 _______ 2

P(x): ___ 0.09 ___ 0.42 ____ 0.49

Expected value of northern pikes :

(0* 0.09) + (1 * 0.42) + (2 * 0.49)

0 + 0.42 + 0.98

= 1.4

Answer:

0.6

Step-by-step explanation:

Answer:

For the first triangle the missing sides are 7 and 7√2 For the second triangle,the missing sides are 13√3 and 13

Step-by-step explanation:

For the first triangle,

cos(45°)=7/hypotenuse

hypotenuse×cos45=7

hypotenuse×√2/2=7

hypotenuse=14/√2=7√2

We can now find the adjacent side using Pythagorean theorem,

√(7√2)²-7²=7

For the second triangle,

cos(30°)=adjacent/hypotenuse

but cos 30=√3/2

√3/2=adjacent/26(cross multiply and simplify)

26√3/2=13√3

To find the opposite length,

√(26)²-(13√3)²=13

Answer:

5 students; $90

Step-by-step explanation:

A-P-E-X

Answer:

volume of rectangular prism: 8 x 4 x 11= 352

volume of triangular prism: 4 x 8 x 7= 224/2= 112

Volume of composite figure: 352 + 112= 464

Answer:

see explanation

Step-by-step explanation:

volume of rectangular prism = lbh ( l is length, b is breadth, h is height )

Here l = 11, b = 8 , h = 4

V = 11 × 8 × 4 = 352 ft³

volume of triangular prism = Al ( A is area of triangular end and l is its length )

A = \(\frac{1}{2} \) bh ( b is base and h is height )

Here b = 8, h = 4 and l = 7

A = \(\frac{1}{2} \) × 8 × 4 = 4 × 4 = 16 ft² , then

V = 16 × 7 = 112 ft³

volume of composite figure = 352 + 112 = 464 ft³

a. The v = (x', y') can be solved as (19, 11.5).

b. The ratio y'/x' is 0.605

c. The eigenvalues of the matrices M's eigenvectors v1 and v2 are 10 and 3, respectively.

d. The discrete phase portrait illustrates the system's temporal evolution under various initial conditions. The system evolves without changing shape according to the eigenvectors of the matrix M. (i.e., the system is stretched or compressed, but not rotated). The system's rate of evolution in each direction is shown by the eigenvalue ratios.

(a) To solve for v = (x', y') when v = (1, 1), we need to solve the matrix equation V' = [M10]v. We have:

[M10]v = Mv + 10(1,0)

= (5x + 4y + 10, 3x + 8.5y)

= (5 + 4 + 10, 3 + 8.5) = (19, 11.5)

Therefore, v = (x', y') = (19, 11.5).

(b) The ratio y'/x' is y'/x' = 11.5/19 = 0.605.

(c) The eigenvectors v1 and v2 of the matrix M correspond to the eigenvalues λ1 = 10 and λ2 = 3. The components of v1 and v2 are:

v1 = (1, -1) and v2 = (2, 3)

The ratio of the second component to the first component of v1 is -1/1 = -1, and the ratio of the second component to the first component of v2 is 3/2 = 1.5. These ratios are not equal to the ratio y'/x' = 0.605 that we found in part (b).

(d) The discrete phase portrait shows how the system evolves over time for different initial conditions. The eigenvectors of the matrix M are the directions in which the system evolves without changing shape (i.e., the system is stretched or compressed, but not rotated).

The eigenvalue ratios tell us how fast the system evolves in each direction. If the ratio y'/x' is close to the eigenvalue ratio for one of the eigenvectors, it means that the system evolves faster in that direction than in the other direction.

This makes sense because the eigenvectors and eigenvalues tell us about the behavior of the system in the long run, while the ratio y'/x' tells us about the behavior of the system for a specific initial condition. If the initial condition is close to one of the eigenvectors, it makes sense that the system would evolve faster in that direction.

Learn more about matrix at https://brainly.com/question/14415835

#SPJ11

Answer:

Standard Form: 3x - y  =  -1

Point-Slope Form: 3x-y+1=0

Slope-Intercept Form: y= 3x + 1

To organize the provided data, we can create a table comparing the samples of couples with children (sample 1) and childless couples (sample 2) as follows:

Sample Sample Size Sample Mean Sample Standard Deviation

1 78 51.1 4.7

2 94 45.2 12.1

In this table, we have listed the sample number (1 and 2), the sample size (number of couples in each group), the sample mean (average Marital Satisfaction Inventory score), and the sample standard deviation (measure of variability in the scores) for each group. This organization allows us to compare the data and proceed with hypothesis testing on the difference in population means between the two groups.

Learn more about  data from

https://brainly.com/question/30459199

#SPJ11

The given statement is true.

Consider linearly independent vectors of \(R_{n}\)

Where n = 2

\(V = \[\begin{array}{ccc}4&\\2\end{array}\right]\)  

\(U = \[\begin{array}{ccc}5&\\6\end{array}\right]\)

Now product of these vectors

UV = 4x5 + 2x6

     = 32

Hence these vectors are not orthogonal.

To learn more about linearly independent vectors visit:

https://brainly.com/question/31328368

#SPJ1

Answer:

x > 3/2

Step-by-step explanation:

Answer: x > 1.5

Step-by-step explanation:

Subtract 4 to both sides, which would give you:

3x - 7x < 10 - 12 + 4

Next, solve 3x - 7x, which would give you:

-4x < 10 - 12 - 4

After that, add 10, -12, and -4, which gives you:

-4x < -6

Finally, divide -4 from both sides, which would give you:

x > 1.5

Answer:

The answer is x=3......…...…....…........….…………

Answer:

La respuesta sería 1

Step-by-step explanation:

x = 3

3 – 4 = 1

5 – 2 × 3 = 1