Mathematics Questions and Answers

From 2005 to 2018, the annual investment in renewable energy sources in the United States increased from $11.4 billion to $46.5 billion. Calculate the percent change in renewable energy investment in the US from 2005 to 2018. Experts estimate that for the US to reach 100% renewable energy in 2050, it will require $7.8 trillion. Calculate the percent change this would represent from the 2018 investment level of $46.5 billion. Use the Percent Change Formula Final-Initial/Initial

"Convert the quadratic equation from standard form to vertex form y=-x^2-14x-59"

Explain the difference between area, volume, and surface area. Select a geometric shape and give an example of how to calculate its surface area and volume. How would you teach these concepts to a class?

"Find the linearization​ L(x) of ​f(x)equalstangent x at xequalspi. Question content area bottom Part 1 The linearization is given by​ L(x) equals"

"Identify the significant figures in each number. a. 109.0 b. 1090 c. .1090"

"(i) Identify the domain and range. (ii) Does this graph represent a function and a one-one function? Why/Why not? Provide a detailed explanation/justification."

"Solve the system of equations by any method. 3x−4y+2z =−15 (1) 2x+4y+z =16 (2) 2x+3y+5z =20 (3) Enter the exact answer as an ordered triple, (x,y,z)."

Find the surface area of the rectangular prism with side lengths 3 units, 4 units, and 2 units.

Convert 68°F into Celsius given the formula: C = frac(5,9)bracket(F-32) where F represents degrees Fahrenheitt and C represents degrees Celsuis.

"Write the standard form of the equation and the general form of the equation of the circle with radius r and center​ (h,k). Then graph the circle. requals1​;    ​(h,k)equalsleft parenthesis 8 comma negative 6 right parenthesis Question content area bottom left Part 1 The standard form of the equation of this circle is enter your response here. ​(Type your answer in standard​ form.)"

"An annuity is a series of Blank______ deposits. Multiple choice question. small large unequal equal"

How many pounds (lbs) are in 58 kg? Group of answer choices 127.6 lbs 26.4 lbs 5.8 lbs 580 lbs Which atom would have an electron configuration of 1s2 2s2 2p6 3s2 3p6? Group of answer choices Cl Ne Ar N Determine how many electrons you would expect each of the following ions and ground state atoms to contain and match them up. Group of answer choices a. Fluoride [ Choose ] b. Fluorine [ Choose ] c. Zn(I) [ Choose ] d. Calcium ion [ Choose ]

"Question content area top Part 1 Solve the system by the substitution method. left brace Start 2 By 1 Matrix 1st Row 1st Column 4 x plus 5 y equals negative 13 2nd Row 1st Column x equals y minus 1 EndMatrix Question content area bottom Part 1 Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. A. There is exactly one solution. The solution set is StartSet nothing EndSet. ​(Simplify your answer. Type an ordered​ pair.) B. There are infinitely many solutions. The solution set is StartSet left parenthesis x comma y right parenthesis | 4 x plus 5 y equals negative 13 EndSet or StartSet left parenthesis x comma y right parenthesis |x equals y minus 1 EndSet. C. The solution set is empty set."

Explain functions of community and elaborate them?

Why is sin x not a polynomial function

"If the statement is true, explain why. If the statement is false, correct it so that it is true. a. A kite is sometimes a rhombus. b. A square is a rhombus. c. A square is a rectangle. d. A rectangle is a square."

Find the equation of the line. Use exact numbers. A coordinate plane. The x- and y-axes each scale by one. A graph of a line goes through the points zero, negative six and four, negative seven.

In the metric system, what unit of measurement is used for volume

"Find the following indefinite integral: integral square root of x left parenthesis 5 x plus 3 right parenthesis squared d x a. 50 over 7 x to the power of 7 over 2 end exponent plus 12 x to the power of 5 over 2 end exponent plus 6 x to the power of 3 over 2 end exponent plus c b. 50 over 7 x to the power of 7 over 2 end exponent plus 6 x to the power of 3 over 2 end exponent plus c c. 175 over 2 x to the power of 7 over 2 end exponent plus 75 x to the power of 5 over 2 end exponent plus 27 over 2 x to the power of 3 over 2 end exponent plus c d. 175 over 2 x to the power of 7 over 2 end exponent plus 27 over 2 x to the power of 3 over 2 end exponent plus c"

"Convert the angle in degrees to radians. Round to two decimal places. 125 Degrees. ​(Simplify your answer. Type an exact answer in terms of pi. Use integers or fractions for any numbers in the​ expression.)"

Write the equation of the line that contains the points (-4, 5) and (-8, 3) in slope-intercept form.

Rewrite the following as an equivalent algebraic expression. Assume x is positive. Make sure to use the ""/"" symbol in your answer to indicate division/fraction. sec (cos-1(x/6)) =

"(Calculating present​ value) What is the present value of ​$600 to be received 15 years from now discounted back to the present at 12 ​percent? Question content area bottom Part 1 The present value of ​$600 to be received 15 years from now discounted back to the present at 12 percent is ​$    enter your response here. ​(Round to the nearest​ cent.)"

The formula for finding the length of an arc on a circle is L=2πr(x/360)where r is the radius of the circle and x is the measure of the central angle of the arc. Solve for r.

What is the range of this function? (8,4) (7,9) (4,–3) (3,–1)

How do you find the Arc length between two cars or compartments on a Ferris wheel?

The range for the data set: 2, 5, 5, 7, and 10 is ______

What is the sum of the measures of the exterior angles of the polygon shown below? If necessary, round to the nearest tenth

Empirical risk refers to the risk undertaken by theorists when they venture to predict or forecast in order to explain a phenomenon

A game is said to be "fair" if the expected value for winnings is 0, that is, in the long run, the player can expect to win 0. Consider the following game: The game costs $1 to play and the winnings are $5 for red, $3 for blue, $2 for yellow, and nothing for white. The following probabilities (found in the table) apply. What are your expected winnings? Does the game favor the player or the owner?

Derivatives of Trigonometric Functions

Find the equation of a hyperbola with foci ​(0,plus or minus6​) and the length of the transverse axis 4. Graph the hyperbola.

Find the mean, median and mode of the weights of the shown. 105, 53, 76, 91, 120, 61, 55, 98, 61

"Find the area of the shaded sector of circle O. * Captionless Image 5π 20π 25π 50π"

Find the surface area of the rectangular prism. 1 cm 7 cm 3 cm

Calcular la mediana de los siguientes datos: 3, 6, 7, 9, 4, 4.

The terminal side of angle θ intersects the unit circle in the first quadrant at (13/15,y). What are the values of sinθ and cosθ?

"Which algebraic expression is equivalent to the expression below? 9(4x + 8) – 4 A. 36x + 36 B. 36x + 4 C. 36x + 68 D. 36x + 72"

What is the square root of pie explained?

"Find the value of the combination. 9c2 ="