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6401.

What are the zeros of the polynomial function f(x) = x3- 9x2+ 20x?

Answer» What are the zeros of the polynomial function f(x) = x3- 9x2+ 20x?

Solution:

6402.

What is a lemma?

Answer» Alemma is a proven statement, used to prove other statements.

Lemma and theorem are two different concepts in mathematics and cannot be termed the same.

6403.

Determine the solution set of (3x + 1)2 - 100 = 0.

Answer» Determine the solution set of (3x + 1)2- 100 = 0.

Solution:

6404.

Solve and graph the absolute value inequality: |4x + 1| ≤ 5.

Answer» Solve and graph the absolute value inequality: |4x + 1| ≤ 5.

Solution:

6405.

The diameter of the base of the cone measures 8 units. The height measures 6 units. What is the volume of the cone?

Answer» The diameter of the base of the cone measures 8 units. The height measures 6 units. What is the volume of the cone?

Solution:

6406.

What is the area of a square computer screen with 21-in sides?

Answer» What is the area of a square computer screen with 21-in sides?

Solution:

6407.

How many centimeters in an inch on a 12-inch ruler?

Answer» There are 30 centimeters displayed on a 12-inch ruler.

A centimeter is aunit of themetric systemthat is used to measure length.

6408.

Find the dimensions of a rectangle with a perimeter 108m whose area is as large as possible.

Answer» Find the dimensions of a rectangle with a perimeter 108m whose area is as large as possible.

Solution:

6409.

If a and b are independent events with p(a) = 0.05 and p(b) = 0.65, then p(a | b) =?

Answer» If a and b are independent events with p(a) = 0.05 and p(b) = 0.65, then p(a | b) =?

Solution:

6410.

Find the least number which when divided by 6, 15, and 18, leaves a remainder of 5 in each case.

Answer» 95 is the least number which when divided by 6, 15, and 18 leaves a remainder of 5 in each case.

LCMis thesmallest positive number that is a multiple of two or more numbers.

6411.

What is the derivative of sin2(x)?

Answer» The derivative of sin2(x) = 2sin(x)cos(x).

We’ll solve this derivative using the product rule of differentiation.

6412.

How to express 4to the power of 2?

Answer» 4to the power of 2can be expressed as 42= 4× 4= 16

The power in exponents is defined as the total number of times the number is multiplied by itself.For example, 2 to the power 3 means 2 is multiplied 3 times.

6413.

How many faces, edges, and vertices are in an octagonal prism?

Answer» An octagonal prism has 10 faces, 24 edges, and 16 vertices.

Anoctagonal prismis a three-dimensional polyhedronbounded by 2octagonalbases and 8 rectangular sides.

6414.

Use this equation to find dy/dx:9y cos (x) = x2 + y2

Answer» The differential of the equation 9y cos (x) = x2 + y2, with respect to xis dy/dx = (9ysin x + 2x) / (9cos x - 2y).

We can make use of uv (product rule) method of differentiationto solve the given question.

6415.

If xy = 144, x + y = 30, and x > y. What is the value of x - y?

Answer» If xy = 144, x + y = 30, and x > y. What is the value of x - y?

Solution:

6416.

Find the point (x, y) on the unit circle that corresponds to the real number t = 2π/3

Answer» Find the point (x, y) on the unit circle that corresponds to the real number t = 2π/3

Solution:

6417.

Simplify (3x2 - 3 + 9x3) - (4x3 - 2x2 + 16).

Answer» Simplify (3x2 - 3 + 9x3) - (4x3 - 2x2 + 16).

Solution:

6418.

Determine the intervals on which the function is increasing decreasing and constant for the given graph.

Answer» The intervals on which the function is increasing and decreasing are(-∞,3] and[3,∞) respectively. Also,there is no interval where the function is constant.

determine if the function is increasing decreasing or constant

6419.

Using the graph of f(x) = log10x below, approximate the value of y in the equation 10y = 4. Log base 10 graph

Answer» Using the graph of f(x) = log10x below, approximate the value of y in the equation 10y = 4.
Log base 10 graph

Solution:

6420.

A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure?

Answer» A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure?

Solution:

6421.

What is 10to the 4th power?

Answer» The value of 10 raised to the 4thpower is 10,000.

The exponentor power of a number shows how many times the number is multiplied by itself.

6422.

What is the slope of a line passing through (3, 4) and (5, 8)?

Answer» What is the slope of a line passing through (3, 4) and (5, 8)?

Solution:

6423.

What is 4 to the second power?

Answer» The value of 4 to the second power is 16.

The exponentor power of a number shows how many times the number is multiplied by itself.

6424.

The dimensions of a cuboid are in the ratio 5:2:1. Its volume is 1250 cubic meters. Find the total surface area of the cuboid.

Answer» If the dimensions of a cuboid are in the ratio 5:2:1 and its volume is 1250 cubic meters, the total surface area of the cuboid is 850 sq.m.

A cuboid is a three-dimensional figure.

6425.

If f(x) + x2[f(x)]4 = 18 and f(1) = 2, find f'(1)

Answer» If f(x) + x2[f(x)]4 = 18 and f(1) = 2, f'(1) = -32 / 33.

Functions form the backbone of many topics like calculus and algebra.Let's solve a problem related to functions.

6426.

Find the slope of the curve at the indicated point. Let us consider the curve as x2 + y3 = 4 and the indicated point is (2, 5).

Answer» The slope of the curvex2 + y3 = 4 is-4/75 at the indicated point (2, 5)

We will use the concept of differentiation to find the slope of the curve.

6427.

What is the area of a sector with a central angle of 160 degrees and a diameter of 5.8m?

Answer» What is the area of a sector with a central angle of 160 degrees and a diameter of 5.8m?

Solution:

6428.

6 out of 8 is what percent?

Answer» 6 out of 8 can be expressed as 75%.

Converting afractionto percent means expressing the fraction in terms of 100.

6429.

If 3x2+ 2xy + y2= 2, then the value of dy/dx at x = 1 is?

Answer» Thedifferentiation of the expression3x2+ 2xy + y2= 2at x = 1 is not defined.

Implicit differentiation means differentiating or finding the derivativewith respect to one of the variables and keeping others as constants.

6430.

How to determine the x-intercept and the y-intercept of a line on a graph?

Answer» The x-intercept and y-intercept are those points in a graph at which a line or a curve intersects the x-axis and y-axis respectively.

An intercept is the point of intersection of the line with the coordinate of x and y axes.

6431.

If TRAP is an isosceles trapezoid, what is the value of x?

Answer» In the isosceles trapezoid TRAP, the value of x is 28.

6432.

Factor -8x3- 2x2- 12x - 3 by grouping. What is the resulting expression?

Answer» Factor -8x3- 2x2- 12x - 3 by grouping. What is the resulting expression?

Solution:

6433.

What is 9/20 as a percent?

Answer» 9/20 as a percent is expressed as 45%

Percentage is a fraction orratio in which the value of the whole is always 100.

6434.

What is 70 degrees Celsius in Fahrenheit?

Answer» 70degrees Celsius is equal to 158degrees Fahrenheit.

The two different types of units that are used formeasuringtemperature are CelsiusandFahrenheit.

6435.

What is 100degrees Fahrenheit in Celsius?

Answer» 100 degrees Fahrenheit is equal to 37.78 degrees Celsius.

The two different types of units that are used formeasuringtemperature are CelsiusandFahrenheit.

6436.

Can the numbers 24, 32, and 40 make a right triangle?

Answer» Yes, the numbers 24, 32, and 40 can make a right triangle.

We will be using thePythagoras theorem to solve this.

6437.

What is 10 degrees centigrade in Fahrenheit?

Answer» 10° Centigrade is equal to 50°Fahrenheit.

The two different types of units used to measuretemperatureareCelsiusandFahrenheit.Celsius and Centigrade are two names for essentially the same temperature scale.

6438.

Find the area of a regular hexagon with the given measurement. 6-inch radius A = sq. in.

Answer» Find the area of a regular hexagon with the given measurement. 6-inch radius A = sq. in.

Solution:

6439.

Is there a number that is exactly 5 more than its cube?

Answer» Yes,there is a number that is exactly 5 more than its cube.

When we multiply a number three times by itself, the resultant number is known as the cube of the original number.

6440.

How can one half x - 5 = one third x + 6 be set up as a system of equations?

Answer» How can one half x - 5 = one third x + 6 be set up as a system of equations?

Solution:

6441.

Find 3x2 - y3 - y3 - z if x = 3, y = -2, and z = -5?

Answer» Find 3x2 - y3 - y3 - z if x = 3, y = -2, and z = -5?

Solution:

6442.

A runner taking part in the 200m dash must run around the end of a track at what time if he is running at an average speed 20 meters/sec.

Answer» The runner will take 10 seconds in order to run 200m around the end of the track if he is running at an average speed of 20 meters/sec.

We will use the concept of speed, distance, and time in order to find the time taken by the runner.

6443.

What is the prime factorization of 90?

Answer» What is the prime factorization of 90?

Solution:

6444.

What is the base unit of length in the metric system?

Answer» Meter is thebaseunit of length in the metric system.

Measuring length means measuring the length of any object with the help of measuring tools like scale, tape, etc.

6445.

How to express a repeating decimal number as a ratio of integers?

Answer» To express a repeating decimals number as a ratio of integers we follow certain steps.

The non-terminating but repeating decimal expansion means that although the decimal representation has an infinite number of digits, there is a repetitive pattern to it.

6446.

What are the solutions to m2- 9 = 0? m = -9 and m = 0, m = -3 and m = 3, m = -3, m = 9

Answer» What are the solutions to m2- 9 = 0? m = -9 and m = 0, m = -3 and m = 3, m = -3, m = 9

Solution:

6447.

How to convert meters per second to kilometers per hour?

Answer» To convert meter per second to kilometer per hour we multiply the given number by 18/5.

Meters per second can be easily converted into kilometers per hour using a conversion factor.

6448.

Write the Inequality for the product of a number and 8 is at least 25.

Answer» The inequality for the product of a number(Z) and 8 is at least 25 isZ≥ 25/8.

We will be using the concept of inequalities to solve this.

6449.

Find the points on the surface y2 = 49 + xz that are closest to the origin.

Answer» Find the points on the surface y2= 49 + xz that are closest to the origin.

Solution:

6450.

Choose the correct option: For a uniform probability density function, the height of the function is ___? a. Is different for various values of xb. Decreases as x increases c. Cannot be larger than 1 d. Is the same for each value of x

Answer» Choose the correct option: For a uniform probability density function, the height of the function is ___?
a. Is different for various values of xb. Decreases as x increases c. Cannot be larger than 1 d. Is the same for each value of x

Solution: