i need help with this

Answers

Answer 1
\(\begin{gathered} f(x)=x^2+3 \\ g(x)=-2x+6 \\ a)(f+g)(3)= \\ (f+g)(x)=x^2+3-2x+6 \\ (f+g)(x)=x^2-2x+9 \\ \text{now, }(f+g)(3)\text{ means that x=3, hence} \\ (f+g)(3)=3^2-2(3)+9 \\ (f+g)(3)=9-6+9 \\ (f+g)(3)=12 \end{gathered}\)\(\begin{gathered} b)\text{ (f-g)(-5)} \\ (f-g)(x)=x^2+3-(-2x+6) \\ (f-g)(x)=x^2+3+2x-6 \\ (f-g)(x)=x^2+2x-3 \\ \text{Now, }(f-g)(-5)\text{ means that x=-5, hence} \\ \text{ }(f-g)(-5)=(-5)^2+2(-5)-3 \\ \text{ }(f-g)(-5)=25-10-3 \\ \text{ }(f-g)(-5)=25-13 \\ \text{ }(f-g)(-5)=12 \end{gathered}\)


Related Questions

13. Determine if the following statement is true or false. Explain your reasoning.
The graph of a non-vertical straight line is always a function, but the graph
of a function is not always a straight line.

Answers

The evaluation of the statements with regards to the graph of a function are;

The graph of non-vertical straight line is always a function, but the graph of a function is not always a straight line is true.

What is a function?

A function maps an input value to an output based on a definition or rule.

First part of the statement;

The graph of a non-vertical straight line has a range of values for the slope, m, of 0 ≤ m < ∞

The equation of a straight line function is of the form; y = m·x + c

Therefore;

The graph of a non-vertical straight line can be represented by the equation, y = m·x + c, where y has possible values of; -∞ < y < ∞, which indicates that as x increases or decreases, y increases (or decreases), such that each value of x maps unto only one value of y, which indicates that the graph is a function. The statement is therefore true.

Second part of the statement.

The graph of the quadratic function; y = a·x² + b·x + c has a shape of a parabola, therefore, the statement, the graph of a function is not always a straight line is true also.

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does anyone know this

does anyone know this

Answers

Answer: 761 yd

split the figure into different pieces to make it easier

(23 x 7) + (40 x 15)

161 + 600

761

hope this helped :)

Answer:

761 yd ^3

Step-by-step explanation:

What is the area of this figure?
15 mm
4 mm
Submit
3 mm
3 mm
5 mm
5 mm
7 mm
8 mm
Write your answer using decimals, if necessary.
square millimeters

Answers

Unfortunately, I cannot answer this question without a picture or a description of the figure. Please provide more information or context so that I can assist you better.

Write an equation in point-slope form. Part I: Create an equation of a line in point-slope form. Be sure to identify all parts of the equation before writing the equation. (3 points) Part II: Using the equation of the line you wrote in Part I, write an equation of a line that is perpendicular to this line. Show your work. (3 points)

Answers

The line's equation in point-slope form is shown here. Point (2, 5) is the given point on the line, and slope 2 is the given slope of the line. The slope of this line is -1/2, which is the negative reciprocal of the slope.

How do you formulate an equation in point-slope form?

A line's point slope form equation is \(y - y_1 = m(x - x_1)\). Consequently, y - 0 = m(x = 0), or y = mx, is the equation of a line passing through the origin with a slope of m.

We require a point on the line and the slope of the line in order to create a line equation in point-slope form. In point-slope form,

\(y - y1 = m(x - x1)\)

As an illustration, suppose we want to formulate the equation of the line passing through the coordinates (2, 5) and having a slope of 2. The values can be entered into the point-slope form as follows:

y - 5 = 2(x - 2)Let's say the given line has the equation \(y - y1 = m(x - x1)\), where (x1, y1) is a point on the line and m is the slope of the line.

we can use the given point (2, 5). Then we can plug in the values into the point-slope form:

\(y - 5 = (-1/2)(x - 2).\)

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4/10x - 2x + 8/5 = 4/5

Answers

\(\large\displaystyle\text{$\begin{gathered}\sf \left(\frac{4}{10}\times x\right)-(2 \times x)+\frac{8}{5}=\frac{4}{5} \end{gathered}$}\)

Reduce the fraction 4/10, to its minimum expression, extracting and canceling 2.

\(\large\displaystyle\text{$\begin{gathered}\sf \frac{2}{5}x-2x+\frac{8}{5}=\frac{4}{5} \end{gathered}$}\)

Combine \(\bf{\frac{2}{5}x }\) and -2x to get \(\bf{-\frac{8}{5}x}\).

\(\large\displaystyle\text{$\begin{gathered}\sf -\frac{8}{5}x+\frac{8}{5}=\frac{4}{5} \ \end{gathered}$}\)

Subtract 8/5 from both sides.

\(\large\displaystyle\text{$\begin{gathered}\sf -\frac{8}{5}x=\frac{4}{5}-\frac{8}{5} \ \ \end{gathered}$}\)

Since 4/5 and 5/8 have the same denominator, join their numerators to subtract them.

\(\large\displaystyle\text{$\begin{gathered}\sf -\frac{8}{5}x=\frac{4-8}{5} \end{gathered}$}\)

Subtract 8 from 4 to get -4.

\(\large\displaystyle\text{$\begin{gathered}\sf -\frac{8}{5}x=-\frac{4}{5} \end{gathered}$}\)

Multiply both sides by \(\bf{-\frac{5}{8}}\), the reciprocal of \(\bf{-\frac{5}{8}}\).

\(\large\displaystyle\text{$\begin{gathered}\sf x=-\frac{4}{5}\left(-\frac{5}{8}\right) \end{gathered}$}\)

Multiply -4/5 by -5/8 (to do this, multiply the numerator by the numerator and the denominator by the denominator).

\(\large\displaystyle\text{$\begin{gathered}\sf x=\frac{-4(-5)}{5\times8} \ \to \ \ Multiply \end{gathered}$}\)\(\large\displaystyle\text{$\begin{gathered}\sf x=\frac{20}{40} \end{gathered}$}\)

Reduce the fraction 20/40 to its lowest expression by extracting and canceling 20.

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf x=\frac{1}{2} \end{gathered}$}}\)

Good luck in your studies

Carpet is installed in the hallways of a building. The cost of carpet and installation is $32.50 per square yard. A total length of 432.0 feet of carpet 5.0 feet wide is required. What is the total cost of carpet and installation? (Number of square feet = length in feet × width in feet)

Answers

Answer:

\(Total = \$7800\)

Step-by-step explanation:

Given

\(Cost = \$32.50\) per square yard

\(Length = 432.0ft\)

\(Width = 5.0ft\)

Required

Determine the cost of carpet and installation

First, calculate the area of the carpet

\(Area = Length * Width\)

\(Area = 432.0ft * 5.0ft\)

\(Area = 2160ft^2\)

Convert to square yard

\(Area = \frac{2160yd^2}{9}\)

\(Area = 240yd^2\)

The cost is then calculated as:

\(Total= Area * Unit\ Cost\)

\(Total = 240 * \$32.50\)

\(Total = \$7800\)

a+5a^(2) when a is -3

Answers

Answer:222

Step-by-step explanation:

5 times -3 is -15. -15^2 is 225. -3+225 is 222

Answer:

42

Step-by-step explanation:

a+5a^(2)

(-3)+5(-3)^2

(-3)+45

=42

An exponential function in the form y = 5832(b)* contains the point (3, 1). What is the value of b?

Answers

The value of 'b' obtained for the given exponential function is 0.055.

Explain the term exponential function?A mathematical function with the formula f (x) = aˣ is an exponential function. where an is a constant known as the function's base and x is a variable. The transcendental number e, or roughly 2.71828, is the exponential-function base that is most frequently encountered.

The stated exponential function is-

y = 5832(b)ˣ

This, function contains the point (3, 1).

Put the value in the r function;

1 = 5832(b)³

(b)³ = 1/5832

b = ∛1/5832

b = 0.055

Thus, the value of 'b' obtained for the given exponential function is 0.055.

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Which one doesn’t belong and why

Which one doesnt belong and why

Answers

The polygon does not belong to the group as it is created by a finite number of line segments and the concept of the radius of curvature is not applicable.

What shape is different from the others?

In this problem we have three shapes related to circle-like and ellipse-like arcs (circle, semicircle, ellipse) and a regular polygon.

Circles are closed figures created by a arc whose radius of curvature is the same at every point and ellipses are closed figures created  by a arc whose radius of curvature varies in the following interval: a ≤ r ≤ b, where a, b are the lengths of the semiaxes.

Polygons are closed figures created by a finite number of line segments and therefore the concept of radius of curvature is not applicable.

Therefore, the polygon does not belong to the group as it is created by a finite number of line segments and the concept of the radius of curvature is not applicable.

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name the quadrilateral with 2 pairs of consecutive congruent sides with diagonals that meet at a right angle

Answers

The quadrilateral you're describing is a Kite. A kite is a quadrilateral with two pairs of consecutive congruent sides, and its diagonals meet at a right angle.

Which recursive formula defines the sequence?

f(1) = 6, f(4) = 12, f(7) = 18

Answers

Step-by-step explanation:

Find the missing side lengths

Find the missing side lengths

Answers

Answer:

x = 1.4

y = 1.4

Step-by-step explanation:

Mark brainliest

-73.3 as a mixed number

Answers

Answer:

- 73 3/10

Step-by-step explanation:

Step 1:

- 73.3 = -733%

Step 2:

- 733% = - 73 3/10

Answer:

- 73 3/10

Hope This Helps :)

9514 1404 393

Answer:

  -73 3/10

Step-by-step explanation:

Pronouncing a decimal number can help when you convert it to a mixed number. This one is ...

  "negative seventy-three and three tenths"

Of course, expressing "three tenths" as a fraction, you have 3/10.

Then your number is ...

  -73.3 = -73 3/10

Select ALL the true statements

Select ALL the true statements

Answers

Answer:

2 and 5 because dilation always have the same angles and they can increase and decrease in size

Step-by-step explanation:

But I am not sure so if I am wrong I am sorry I did a test like this

Explain the difference between an indefinite integral and a definite integral.
A) An indefinite​ integral, after evaluating it at the limits of​ integration, results in a particular number. A definite integral results in a set of functions that share the same derivative and uses an arbitrary constant of integration.
B) A definite​ integral, after evaluating it at the limits of​ integration, results in a particular number. An indefinite integral results in a set of functions that share the same derivative and uses an arbitrary constant of integration.
C) An indefinte integral cannot always be integrated analytically and may require numeric​ integration, while it is always possible to integrate a definite integral. Definite integrals always return a real number after evaluation at its limits of integration.
D) A definite integral is defined and continuous over the interval of integration and has finite limits of integration. An indefinite integral is also defined and continuous over the interval of​ integration, but may have as a limit of integration.

Answers

The answer is A.

An indefinite integral is a function that, when differentiated, equals the original function. It is denoted by ∫f(x)dx, where f(x) is the function to be integrated. An indefinite integral always has an arbitrary constant of integration, which is denoted by C. This is because the derivative of any constant is zero, so the derivative of ∫f(x)dx+C is still equal to f(x).

A definite integral is the limit of a Riemann sum as the number of terms tends to infinity. It is denoted by ∫

a

b

f(x)dx, where a and b are the limits of integration. A definite integral does not have an arbitrary constant of integration, because the limits of integration specify a unique value for the integral.

In other words, an indefinite integral is a family of functions that share the same derivative, while a definite integral is a single number.

If the points (1,4) and (3,12) lie on the line representing a proportional relationship, what is another point that
lies on the line?

Answers

Answer:

its (2,8)

Step-by-step explanation:

the point is the  multiple of the abscissa 1 and ordinate 4 if we multiply 2 with 1 and 4 we get (2,8) and the ratio is also same

or it can be all the multiples of 1 and 4

thank u

Tristan has a pickup truck that could carry 6/7 ​-cord of firewood. Find the number of trips needed to carry 54 cords of wood.

Answers

Tristan needs 63 trips to carry 54 cords of wood.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b, will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

Given,

1 pick up  ⇔  6/7 cord of wood

Multiply by 54 on both sides

54 pick  up ⇔ (6/7)54 cords of wood

Multiply by 7/6 on both sides

54(7/6) pick up ⇔ 54 cords of wood

63 pick up  ⇔ 54 cords of wood

Hence for 54 cords of wood Tristan need 63 trips.

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A number divided by 7

Select one:
a. 7+x
b. 7/x
c. x/7
d. 7x

Answers

Answer:

c. x/7

Step-by-step explanation:

seven is dividing something, and X is the placeholder in this equation.

So, since x is being divided by seven, that rules out B., because that's backwards.

A. and D. don't involve division, so they're both incorrect as well.

Thus we are left with C. x/7

The answer to your question is C

3) Which value below would
have the most dots on a line
plot?
3
6.25
4.25
3
Your answer
6.5
6.25
3 co
3.5
6.5
4.25
* 1 point
5
4.25
7.25
5.5

3) Which value below wouldhave the most dots on a lineplot?36.254.253Your answer6.56.253 co3.56.54.25*

Answers

The value that would have the most dots on a line plot is given as follows:

4.25.

What is a dot plot?

The dot plot gives a dot to each measure for each time that it appears, hence it says the same thing as a table, in a different format.

A line plot is built from the dot plot, in which:

The input is each observation of the data-set.The output is the number of dots on the data-set.

Hence the value 4.25 is the value in this problem that would have the most dots in a line plot, as it is the value that appears the most times in the data-set (only value to appear three times).

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can someone help me with this simple 8th grade worksheet

can someone help me with this simple 8th grade worksheet

Answers

it’s simple. go to desmos and put in both equations. wherever the lines intercept put those two points in (x,y)

question one pls
algebra 2
logarithms

question one plsalgebra 2logarithms

Answers

Condense the logarithm on the right side:

\(3\log_b(p)-\left(2\log_b(t)+\dfrac12\log_b(r)\right)\)

\(n\log_b(m)=\log_b(m^n) \implies \log_b(p^3)-\left(\log_b(t^2)+\log_b\left(r^{\frac12}\right)\right)\)

\(\log_b(m)+\log(n)=\log_b(mn) \implies \log_b(p^3)-\log_b\left(t^2r^{\frac12}\right)\)

\(\log_b(m)-\log(n)=\log_b\left(\dfrac mn\right) \implies \log_b\left(\dfrac{p^3}{t^2r^{\frac12}}\right)\)

So,

\(x=\dfrac{p^3}{t^2r^{\frac12}}\)

and \(r^{\frac12}=\sqrt{r}\), which makes (4) the correct choice.

th
The Buffaloes scored 20 pointo the first part of the game. The Buffaloes total score at
the end of the game was 35 points.
What is the approximate percentage of the points scored during second part of the
game?
A
15%
43%
C.
57%
D
85%

Answers

The approximate percentage of the points scored during the second part of the  game is 43%

Given the total score at the second part of the game  = 35 points

Score at the first part of the game = 20 points

Amount of score during the second part of the game  = 35  = 20 = 15 points

% score in the second part  = 15/35 * 100

% score in the second part  = 1500/35

% score in the second part = 42.85 ≈ 43%

Hence the approximate percentage of the points scored during the second part of the  game is 43%

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Which of the following functions is graphed below? HELP

Which of the following functions is graphed below? HELP

Answers

The solution is: Piece-wise function

f(x)=x+6 , x≤1

f(x) = x^2 + 3 , x>1, the following functions is graphed below.

Option C is correct.

Explanation:

We are given a graph of piece-wise function which break at x=1

We need to choose correct option for graph.

Function is break at x=1.

We will get two function

For x≤1 and x>1

As we can see x≤1, graph is linear and x>1 graph is parabolic.

Equation of linear graph, x≤1

Take two point of graph (0,6) and (-6,0)

Equation of line:

y-y1/y2-y1 = x-x1/x2-x1

y = x+1

f(x)=x+6 , x≤1

Equation of parabolic graph, x>1

f(x) = x^2 + 3

Piece-wise function

f(x)=x+6 , x≤1

f(x) = x^2 + 3 , x>1

Please see the attached figure.

Hence, The option C is correct.

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Which of the following functions is graphed below? HELP

express 56;84;104 each as a product of their prime factors​

Answers

Answer:

2x2x2x7 is 56, 2^2x3x7 is 84, and 2x2x2x13 is 104.

Step-by-step explanation:

1. The possible missing terms to make x²_____+100 a perfect square trinomial are
a. 4x and 25x.
b. -10x and 10x.
c. -20x and 20x.
d. -4x and -25x.

Answers

Answer:

c. -20x and 20x

Step-by-step explanation:

x² is the square of x.

100 is the square of 10 and of -10.

The middle term of (a + b)² is 2ab.

For b = 10:

2ab = 20x

for b = -10:

2ab = -20x

Answer: c. -20x and 20x

Which answer is the explict rule for the sequence? 12.5,11,9.5,8,6.5,5,...

Answers

Answer:

12.5, 11, 9.5, 8, 6.5, 5, ... 4. an = 14 − 1.5n

Step-by-step explanation:

write a real-world situation that could be modeled by the equation 8+2x=6x. Then solve the problem.

Answers

Answer:

x = 2

Step-by-step explanation:

8 = 6x + -2x

8 = 4x

8 = 4x

4 4

2 = x

Find the missing angle using trigonometry

Find the missing angle using trigonometry

Answers

Answer:

please look at detailed answers below

Step-by-step explanation:

example 1 is correct.

example 2:

x = (12 sin 15) / sin 75 = 3.22.

example 3:

x/sin 90 = 19/sin (180 - 90 -36)

x = (19 sin 90) / sin 54

= 23.5

example 4:

x/sin 53 = 7/sin (180 -90 - 53)

x = (7 sin 53)/ sin

= 9.29

Points A (4, 3), B (6, 4), C (5, 6) and D (3, 5) are the vertices of a square ABCD. The square ABCD is reflected about the line through (0, 0) and (-2, 2). Find the vertices of the image of the square ABCD and present both the figures on the same graph.

Answers

The vertices of the reflected square.

Let's calculate them:

A' = (-0.914, 3.914)

B' = (-2.828, 5.828)

C' = (-0.086, 7.086)

D' = (1.828, 5.172)

The vertices of the image of the square ABCD after reflecting it about the line through (0, 0) and (-2, 2), we can use the following steps:

Find the equation of the reflection line:

The reflection line passes through (0, 0) and (-2, 2).

We can calculate the slope (m) of the line using the formula (y2 - y1) / (x2 - x1):

m = (2 - 0) / (-2 - 0) = 2 / -2 = -1.

Using the point-slope form of a line (y - y1) = m(x - x1), we can use either of the given points to write the equation of the line:

y - 0 = -1(x - 0)

y = -x.

Find the midpoint of each side of the square:

The midpoints of the sides of a square are also the midpoints of its diagonals.

The midpoint of AB is ((4+6)/2, (3+4)/2) = (5, 3.5).

The midpoint of BC is ((6+5)/2, (4+6)/2) = (5.5, 5).

The midpoint of CD is ((5+3)/2, (6+5)/2) = (4, 5.5).

The midpoint of DA is ((3+4)/2, (5+3)/2) = (3.5, 4).

Reflect the midpoints about the line:

To reflect a point (x, y) about the line y = -x, we can find the perpendicular distance (d) from the point to the line and use it to determine the reflected point.

The perpendicular distance d from the line y = -x to a point (x, y) is given by the formula:

d = (y + x) / √(2).

The coordinates of the reflected points can be found using the formula for reflection across a line:

x' = x - 2d / √(2)

y' = y - 2d / √(2).

Calculate the reflected vertices:

The coordinates of the reflected vertices are as follows:

A' = (4 - 2(3.5 + 5) / √(2), 3 - 2(3.5 - 5) / √(2))

B' = (6 - 2(5 + 5) / √(2), 4 - 2(5 - 5) / √(2))

C' = (5 - 2(5.5 + 5) / √(2), 6 - 2(5.5 - 5) / √(2))

D' = (3 - 2(4 + 5) / √(2), 5 - 2(4 - 5) / √(2))

Now we can plot the original square ABCD and its image A'B'C'D' on the same graph to visualize the reflection.

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The low temperature on a certain day is 51°F. The low temperature is 17°F lower than the high temperature, h. Which equation can be used to find the high temperature for that day?

Answers

Answer

You would add 17 to 51 so it would be 68 degrees

Step-by-step explanation:

Answer:

51 = h − 17

Step-by-step explanation:

Took the test and that was the correct answer. <3

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