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2751.

In a ΔABC, if ∠B = 60° and the ratio of two sides is a : c = 2 : √3 + 1, then ∠A= ____. 45°,40°,35°,55°

Answer» In a ΔABC, if ∠B = 60° and the ratio of two sides is a : c = 2 : √3 + 1, then ∠A= ____.

Solution:

2752.

The graph of function f is shown below. Find one value of x for which f(x) = 4 and find f(-2).

Answer» f (x) = 4 occurs when x = 0 andf (-2) = 2

 downward parabola

2753.

What value of x is in the solution set of 3(x - 4) = 5x + 2?

Answer» What value of x is in the solution set of 3(x - 4) = 5x + 2?

Solution:

2754.

If √10 = 3.162 then find the value of 1/√10

Answer» The value1/√10 is 0.3162.

The given problem is based on the rationalization of irrational numbers.

2755.

At what value of x does the graph of y=(1/x2)-(1/x3) have a point of inflection.

Answer» At what value of x does the graph of y=(1/x2)-(1/x3) have a point of inflection.

Solution:

2756.

8, 6,9,5,10,4,11_____. What is the next number?

Answer» 8, 6,9,5,10,4,11______. What is the next number?

Solution:

2757.

How many milligrams does it take to make a gram?

Answer» It takes 1000milligramsto make a gram.

Grams and milligrams are different measuring units used to measure the weight ormass of an object.

2758.

Which number should come next at the end of this series: 1/12, 1/6, 1/3, 2/3?

Answer» Which number should come next at the end of this series: 1/12, 1/6, 1/3, 2/3?

Solution:

2759.

What is the variance for the following population of scores? scores: 5, 2, 5, 4

Answer» What is the variance for the following population of scores? scores: 5, 2, 5, 4

Solution:

2760.

Which number should come next at the end of this series: 1, 4, 9, 16?

Answer» Which number should come next at the end of this series: 1, 4, 9, 16?

Solution:

2761.

What is the circumference of a circle with a diameter of 30 centimeters?

Answer» What is the circumference of a circle with a diameter of 30 centimeters?

Solution:

2762.

An athlete completes one round of a circular track of a diameter of 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 min 20s?

Answer» The distance covered by theathlete is 2200 m and the displacement at the end of 2 min 20s is 200 m.

Distanceis defined as a complete path traveled by an object. Displacement is defined as the shortest distance between two points.

2763.

Say true or false: (a) Two diameters of a circle will necessarily intersect (b) The Centre of a circle is always in its interior.

Answer» Both the statements are true

A circle is formed by the set of points that are at a constant or at a fixed distance (radius) from a fixed point (center) in the plane.

2764.

What is the x-intercept of the line with this equation -2x + 12y = 18?

Answer» What is the x-intercept of the line with this equation -2x + 12y = 18?

Solution:

2765.

What is 10to the firstpower?

Answer» The value of 10 raised to the firstpower i.e., 101is 10.

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

2766.

Determine whether y varies directly with x and if so, how do you find the constant of variation k for -5y=5x+10.

Answer» How do you determine whether y varies directly with x and if so, how do you find the constant of variation k for -5y=5x+10.

Solution:

2767.

What is the next number? 2, 7, 8, 3, 12, 9

Answer» What is the next number? 2, 7, 8, 3, 12, 9

Solution:

2768.

How to compare an improper fraction and a proper fraction?

Answer» An improper fraction is always greater than a proper fraction {If N > D then it is an improper fraction and if D >Nthen it is a proper fraction}.

A proper fraction is a fraction whose numerator is smaller than its denominator and an improper fraction is a fraction whose numerator is greater than its denominator.

2769.

All the integers are rational numbers. Justify the statement.

Answer» All integers are rational numbers as they can be expressed asp/q, where p, q are integers andq≠ 0.

A rational number is formed when any two integers, such as p and q,are expressed in the form of p/q, where q≠ 0.
Integersarea collection of whole numbers and negatives of whole numbers. Integers form of the list of numbers as: ,..., -4, -3, -2, -1, 0, 1, 2, 3, 4,...,.

2770.

What is 1.25 as a Fraction?

Answer» 1.25 as a fraction is expressed as 5/4

Decimals are a set of numbers written together with a dot in between them that is called a decimal point. Fraction is a numerical value that represents a part of a whole.

2771.

Anumber is divisible by both 5 and 12. By which other numbers will that number be always divisible?

Answer» If a number is divisible by both 5 and 12 it will be divisible by 60.

We will use the definition of co-prime numbers to answer this question. Two numbers orintegersare co-prime if their common factor is only 1.

2772.

Every rational number is a whole number? True or false, also give a reason for your answer.

Answer» Every rational number is not a whole number.

A rational numbercan be written in the form of p/q, where p and q can be any integers but 'q' cannot be zero.

2773.

What is the expression in factored form? 9x2 - 12x + 4

Answer» What is the expression in factored form? 9x2 - 12x + 4

Solution:

2774.

The following set of coordinates represents which figure? (1, 1), (5, 3), (7, 7), (3, 5)

Answer» The following set of coordinates represents which figure? (1, 1), (5, 3), (7, 7), (3, 5)

Solution:

2775.

If 10x + 2 = 7, what is the value of 2x?

Answer» If 10x + 2 = 7, what is the value of 2x?

Solution:

2776.

What is the decimal equivalent of 1/4 inches?

Answer» The decimal equivalent of 1/4 inches is 0.25.

We can define adecimalnumberas thenumber whose fractional part and the whole numberpart are separated by adecimalpoint. An inchis a unit of British Imperial and the United States Customary whose measure is also equal to 1/ 36thof a yard, which can also be written as 1 /12th of thefoot.

2777.

If 0° < θ < 90°, is sin θ equal to cos (90° - θ), and for what reason? No, because angles measuring θ and 90° -θ are supplements. No, because angles measuring θ and 90° - θ are complements. Yes, because angles measuring θ and 90° - θ are supplements. Yes, because angles measuring θ and 90° - θ are complements.

Answer» If 0° < θ < 90°, is sin θ equal to cos (90° - θ), and for what reason?
No, because angles measuring θ and 90° -θ are supplements.
No, because angles measuring θ and 90° - θ are complements.
Yes, because angles measuring θ and 90° - θ are supplements.
Yes, because angles measuring θ and 90° - θ are complements.

Solution:

2778.

Triangle ABC is an obtuse triangle with an obtuse angle at vertex B. Then angle a must be ___.

Answer» IfΔABC is an obtuse triangle with an obtuse angle at vertex B, then∠A must be an acute angle.

A triangle is a closed figure orshapewith 3 sides, 3angles,and 3 vertices.

2779.

What is the equation of the line, in slope-intercept form, that passes through (4, 2) and (-2, -3)?

Answer» What is the equation of the line, in slope-intercept form, that passes through (4, 2) and (-2, -3)?

Solution:

2780.

What is 9/5 as a decimal?

Answer» 9/5 as a decimal is1.8.

Adecimalnumber can bedefinedas a number whose whole number part and the fractional part are separated by adecimalpoint.

2781.

Write the expression as the sine, cosine, or tangent of an angle. cos8x cos2x - sin8x sin2x

Answer» Write the expression as the sine, cosine, or tangent of an angle.
cos8x cos2x - sin8x sin2x

Solution:

2782.

If the Interest Rate is 10 Percent, then the Future Value in Two Years of $100 Today is?

Answer» If the Interest Rate is 10 Percent, then the Future Value in Two Years of $100 Today is$120.

We will be using the concept offuture value simple interestto answer this.

2783.

What is the additive inverse of the complex number -12 + 4i?

Answer» What is the additive inverse of the complex number -12 + 4i?

Solution:

2784.

What is the missing term that makes these ratios equivalent? 1.5:3, 31.5:____

Answer» What is the missing term that makes these ratios equivalent? 1.5:3, 31.5:____

Solution:

2785.

What is 6 divided by 1/4?

Answer» 6 divided by 1/4 is 24.

A fraction can be a portionor section of any quantity out of a whole.

2786.

What are the solutions of the equation 9x4 - 2x2 - 7 = 0? use u-substitution to solve.

Answer» What are the solutions of the equation 9x4- 2x2- 7 = 0? use u-substitution to solve.

Solution:

2787.

Which of the following quadratic equations has the solution set (1/2, 5)? Select all that apply (x + 1/2)(x - 5) = 0 (x - 5)(2x - 1) = 0 (x + 5)(2x - 1) = 0 (-2x + 1)(-x + 5) = 0 (x + 1/2)(x + 5) = 0 (-2x + 1)(x - 5) = 0

Answer» Which of the following quadratic equations has the solution set (1/2, 5)? Select all that apply

Solution:

2788.

A circle is represented by the equation below: (x + 8)2 + (y -3)2 = 100. Which statement is true? (i) The circle is centered at (-8, 3) and has a radius of 20. (ii) The circle is centered at (8, -3) and has a diameter of 20. (iii) The circle is centered at (8, -3) and has a radius of 20. (iv)The circle is centered at (-8, 3) and has a diameter of 20.

Answer» A circle is represented by the equation below: (x + 8)2 + (y -3)2 = 100. Which statement is true?
(i) The circle is centered at (-8, 3) and has a radius of 20.
(ii) The circle is centered at (8, -3) and has a diameter of 20.
(iii) The circle is centered at (8, -3) and has a radius of 20.
(iv)The circle is centered at (-8, 3) and has a diameter of 20.

Solution:

2789.

Explain binomial series.

Answer» It is the sum of infinite series in one variable expressed in terms of generalpositive integers that occur as coefficients in the binomial theorem.

Several series are known as binomial series.

2790.

If y ≠ 1, is x = 1 ? x2 + y2 = 1,y = 1 -x

Answer» If y ≠ 1, is x = 1 ?
x2+ y2= 1,y = 1 -x

Solution :

2791.

Given that sinθ = x4. Which expression represents θ in terms of x? arcsin(x4), sin(x4), arccos(x4), cos(x4)

Answer» Given that sinθ = x4. Which expression represents θ in terms of x?

Solution:

2792.

Find the exact values of the sine, cosine, and tangent of the angle. 7π/12 = π/3 + π/4.

Answer» Find the exact values of the sine, cosine, and tangent of the angle. 7π/12 = π/3 + π/4.

Solution:

2793.

If the tangent line to y = f(x) at (5, 4) passes through the point (0, 3). Find f(5) and f'(5).

Answer» If the tangent line to y = f(x) at (5, 4) passes through the point (0, 3). Find f(5) and f'(5).

Given curve y = f(x) passes through (5, 4)

2794.

What is the common ratio between successive terms in the sequence? 2, -4, 8, -16, 32, -64, …

Answer» What is the common ratio between successive terms in the sequence? 2, -4, 8, -16, 32, -64,…

Solution:

2795.

Which shows one way to determine the factors of x3 + 5x2 - 6x - 30 by grouping? x(x2 - 5) + 6(x2 - 5) x(x2 + 5) - 6(x2 + 5) x2(x - 5) + 6(x - 5) x2(x + 5) - 6(x + 5)

Answer» Which shows one way to determine the factors of x3 + 5x2 - 6x - 30 by grouping?

Solution:

2796.

If 6 bottles are randomly selected, how many ways are there to obtain two bottles of each variety?

Answer» If 6 bottles are randomly selected, how many ways are there to obtain two bottles of each variety?

Solution:

2797.

Which of the following is the correct graph of the solution to the inequality -13 > -5x + 2 > -28? number line with open dots at 3 and 6 and shading in between number line with a closed dot at 6 with shading to the right and another closed dot at 3 with shading to the left number line with an open dot at 6 with shading to the right and another open dot at 3 with shading to the left number line with closed dots at 3 and 6 with shading in between

Answer» Which of the following is the correct graph of the solution to the inequality -13 > -5x + 2 > -28?
number line with open dots at 3 and 6 and shading in between
number line with a closed dot at 6 with shading to the right and another closed dot at 3 with shading to the left
number line with an open dot at 6 with shading to the right and another open dot at 3 with shading to the left
number line with closed dots at 3 and 6 with shading in between

Solution:

2798.

The slope of a vertical line is __; the slope of a horizontal line is ____.

Answer» The slope of a vertical line is infinity; the slope of a horizontal line is zero

The slope of a line can be determined by using two points from which the line passes.

2799.

What number must be added in the expression, x2-8x, to make a perfect square trinomial?

Answer» What number must be added in the expression, x2-8x, to make a perfect square trinomial?

Solution:

2800.

Brian is 8 and his brother is twice his age. How old will his brother be when Brian is 11?

Answer» Brian is 8 and his brother is twice his age. How old will his brother be when Brian is 11?

Solution: