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Benny

Questions and answers by Benny

Questions (77)

A statistician is analyzing data to find a model. She has determined the following characteristics of the data. Which
1. 4 answers
2. 6,118 views
Explain why domain restrictions for inverse trigonometric functions are necessary?I’m having trouble understanding this topic
1. 4 answers
2. 5,269 views
Plutonium-239 is used in nuclear bombs. Determine the number of protons and neutrons in plutonium-239.I really don't understand
1. 1 answer
2. 579 views
4t^2-4/9(t+1) * 3t+3/2t-2
1. 1 answer
2. 362 views
MATRIX EQUATION[ 3x ] [ 10+2y ] [ y ] = [ 5-x ] Solve for x.
1. 1 answer
2. 353 views
Find the area of a triangle whose vertices have coordinates (2,-5), (6,1), and (-3,-4)
1. 4 answers
2. 985 views
Which quadratic function has its vertex at (2,3) and passes through (1,0)?a. y = 2(x-2)^2+3 b. y = -3(x-2)^2+3 c. y =
1. 3 answers
2. 1,207 views
Solve -x^2=4x by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located.
1. 3 answers
2. 1,159 views
One factor of x^3+2x^2-11x-12 is x+4. Find the remaining factors.a. x+1, x+3 b. x-1, x+3 c. x+1, x-3 d. x-1, x-3
1. 4 answers
2. 1,210 views
* = square root!!^2*x^5 / x^(-5/2) = ??
1. 1 answer
2. 327 views
I am trying to write an essay on What ideas are true/untrue of the North.What do it means by ideas. Help??
1. 3 answers
2. 497 views
-4x(2x - 4) - 3 - 5x
1. 1 answer
2. 297 views
The masses of 1 mole of various gases are as follows: hydrogen about 2 grams, helium about 4 grams, nitrogen about 28 grams,
1. 1 answer
2. 1,014 views
Explain why the pressure at depth h in a stationary fluid is `rho g h.
1. 1 answer
2. 361 views
Air passes over the top of an airplane wing at 235 m/s and over the bottom at 190 m/s. If the wing has area 10 m^2, how much
1. 1 answer
2. 484 views
Water is descending in a vertical pipe of diameter 7 cm and open to the atmosphere. At a lower point the water flows into a
1. 1 answer
2. 476 views
Explain why the pressure at depth h in a stationary fluid is `rho g h.
1. 1 answer
2. 324 views
Recall that with the CSMA/CD protocol, the adapter waits K.512 bit times after a collision, where K is drawn randomly. For K =
1. 1 answer
2. 678 views
How many joules would be required to raise the temperature of 20g of ice at oC to water at15C?
1. 2 answers
2. 493 views
if the pressure read by the barometer is 0.882atm, what is the height of the column of mercury in cm?
1. 2 answers
2. 552 views
Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given
1. 4 answers
2. 1,685 views
I need to solve this problem , bought 6 ribbons each ribbon is 1/4 yard long how many yards of ribbons do i need to buy?
1. 3 answers
2. 1,053 views
A car travels 15km northwards. 5km eastwards, 10km southwards, and 5km westwards to arrive at point P. Find its total
1. 2 answers
2. 710 views
Find the common difference of this arithmetic sequence: a_(n) = -8n +14
1. 3 answers
2. 908 views
a farmer has 100 meters of fencing from which to build a rectangle chicken run. he intends using two adjacent walls for two
1. 4 answers
2. 1,646 views
A student found that a brass cylinder weighs 74.04g in air and 66.11g in water (density 0.998g/cm3). What is the density of
1. 3 answers
2. 516 views
What is the relationship between maximum height and Range
1. 1 answer
2. 59 views
What is the relationship between maximum height and Range?
1. 1 answer
2. 51 views
How many servings of punch are in 9/2 cups of punch, If a serving of punch is 3/5 cups plz help now
1. 4 answers
2. 90 views
When a polynomial 𝑓(𝑥) is divided by (𝑥 +2), the quotient is 𝑥2 + 2𝑥 + 1 and the remainder is 5. Find 𝑓(𝑥)
1. 2 answers
2. 152 views
Evaluate ∑(1 2)𝑟 ∞ 𝑟=1 A. 2 B. 1 C. 0.5. D. 0.25
1. 2 answers
2. 164 views
Given that sin(𝐴 + 𝐵) = sin 𝐴 cos𝐵 +cos 𝐴 sin𝐵, find the value of sin 105 °. A. √42 (√3 + 1) B. √42
1. 11 answers
2. 82 views
Given that sin(𝐴 + 𝐵) = sin 𝐴 cos𝐵 +cos 𝐴 sin𝐵, find the value of sin 105 °. A. √42 (√3 + 1) B. √42
1. 2 answers
2. 67 views
17. The expression2 tan 𝜗 1− tan2 𝜗 is identically equal to A. cos 2𝜃 B. sin 2𝜃 C. tan 2𝜃 D. cot 2𝜃
1. 4 answers
2. 123 views
Given that log𝑒 3 , log𝑒 32 , log𝑒 33 , …. form anarithmetic progression 18. What is the common difference A. 2 B. 3
1. 2 answers
2. 207 views
that log𝑒 3 , log𝑒 32 , log𝑒 33 , …. form anarithmetic progression What is the sum of the first of the first ten
1. 5 answers
2. 176 views
. In the triangle PQR below, angle RPQ=45,angle PQR=60 and |RQ|=4. Find |RP| A. √26 B. 3√6 C. 4√ 6 3 D. 2√6
1. 2 answers
2. 130 views
If 𝑝𝑞 = 𝑟 𝑠 , then 𝑝+𝑞 𝑟+𝑠 is equal to A. 𝑝𝑠 𝑞𝑟 B.𝑝𝑞 − 𝑟𝑠 C. 𝑠 𝑞 D. 𝑞
1. 2 answers
2. 64 views
Given that sin 𝑦 = −2√3𝑎𝑛𝑑 tan 𝑦 = √3 , 𝑓𝑖𝑛𝑑 𝑦 A. 60° B. 120° C. 210° D. 240°
1. 5 answers
2. 111 views
Given that log(2𝑥+2)log(𝑥+1) = 2, find the value of 𝑥 A. -2 B. 2 C. 3 D. 1
1. 4 answers
2. 97 views
. Given that 𝑓(𝑥) = 3 cos 𝑥 + 2 sin 𝑥, where 0 ≤𝑥 ≤ 90, for what value of 𝑥 𝑖𝑠 𝑓(𝑥) maximum?
1. 2 answers
2. 80 views
Find the coefficient of 𝑥4in the expansion of (1 − 2𝑥)6. A. -320 B. -240 C. 240 D. 320
1. 2 answers
2. 92 views
A binary operation ∆ is defined on the set R, ofreal numbers by 𝑎 ∆ 𝑏 = 𝑎 + 𝑏√2. Find (2 ∆ − 3) ∆ 5 A. 2
1. 2 answers
2. 105 views
Two functions f and g are defined by 𝑓: 𝑥 →𝑥 1+𝑥 𝑎𝑛𝑑 𝑔: 𝑥 → 𝑥 − 1, find the composite
1. 2 answers
2. 93 views
26. Find the quadratic equation whose roots are3 − √2 𝑎𝑛𝑑 3 + √2 A. 𝑥2 + 6√2𝑥 + 7 = 0 B. 𝑥2 +
1. 2 answers
2. 71 views
. Find the area of a triangle ABC with verticesA(2, 3), B(4, 7) and C(7, 3) A. 20 1 2 𝑢𝑛𝑖𝑡𝑠2. B. √10
1. 2 answers
2. 82 views
A super ball bounces by 23 of its initial bounce when dropped on a hard surface. If it is dropped from a height of ℎ𝑐𝑚.
1. 2 answers
2. 115 views
A super ball bounces by 23 of its initial bounce when dropped on a hard surface. If it is dropped from a height of ℎ𝑐𝑚.
1. 2 answers
2. 114 views
A super ball bounces by 23 of its initial bounce when dropped on a hard surface. If it is dropped from a height of ℎ𝑐𝑚.
1. 2 answers
2. 111 views
A man’s salary increases by Ghȼ800.00 eachyear. If his total salary at the end of 12 years in Ghȼ1,852,800.00. Find his
1. 2 answers
2. 105 views
The roots of the quadratic equation 2𝑥2 − 5𝑥 +𝑚 = 0 are ∝ 𝑎𝑛𝑑 𝛽, where 𝑚 is a real number. Find an
1. 2 answers
2. 69 views
If 𝐹(𝑛) denotes the set of factors of the naturalnumber, including 𝑛 but excluding 1, find a number p such that
1. 2 answers
2. 88 views
Given that 𝑓(𝑥) = 3 cos 𝑥 + 2 sin 𝑥, where 0 ≤𝑥 ≤ 90, for what value of 𝑥 𝑖𝑠 𝑓(𝑥) maximum? A.
1. 2 answers
2. 67 views
35. For what range of values of 𝑥 is 3𝑥2 − 4𝑥 −4 nagative? A. − 2 3 < 𝑥 < 2 B. −2 < 𝑥 < 2 3 C. 𝑥 < −
1. 4 answers
2. 78 views
36. For what values of n will 𝑎2 + 𝑛 = 3𝑎𝑛 − 1 −2𝑎 have repeated roots? A. 𝑛 = 0, 𝑛 = 1 7 9 . B. 𝑛 =
1. 2 answers
2. 90 views
Solve simultaneously the equations;log2 𝑥 − log2 𝑦 = −1 and log𝑦(6𝑥 + 𝑦) − log𝑦(4𝑥 − 𝑦) = 1 A.
1. 2 answers
2. 204 views
40. Express4 cos 𝑥 + 3 sin 𝑥 in the form Rsin(𝑥 + 𝜃) A. 5Sin(x+36.9) B. 5Sin(x+53.1) C. 7Sin(x+36.9) D. 7Sin(x+53.1)
1. 2 answers
2. 101 views
39. Which of the following is the inequality ifthe graph below. A. 𝑥 − 𝑦 ≤ 0 B. 𝑥 + 𝑦 ≤ 0 C. 𝑦 − 𝑥 ≥
1. 2 answers
2. 61 views
. The shaded region in the diagram belowrepresent A. (𝑋 ∪ 𝑌) ∩ 𝑍 B. 𝑌 ∩ 𝑋 ∩ 𝑍 C. (𝑋 ∩ 𝑌) ∪
1. 2 answers
2. 85 views
a. Given that sin2 𝑥, cos2 𝑥 𝑎𝑛𝑑 5cos2𝑥 − 3sin2 𝑥 are in arithmetic progression, find the value ofi.
1. 4 answers
2. 107 views
11. a. A binary operation * is defined on the set of R of real numbers by𝑎 ∗ 𝑏 = 𝑎2 − 2𝑎𝑏 + 𝑏2, where
1. 2 answers
2. 180 views
Find the value of 𝑘 if one root of the quadratic equation 𝑥2 − 𝑘𝑥 + 8 = 0 is the square of the other.
1. 2 answers
2. 142 views
a. A farmer raises pigs and goats in a pen which can house at most 16 animals. She plans not to have morethan 12 goats. If she
1. 2 answers
2. 145 views
Find the exact value of 𝑏2 − 4𝑐 if the roots of 𝑥2 − 𝑏𝑥 + 𝑐 = 0 are two consecutive evennumbers.
1. 4 answers
2. 121 views
If 𝑝𝑞 = 𝑟 𝑠 , then 𝑝+𝑞 𝑟+𝑠 is equal to A. 𝑝𝑠 𝑞𝑟 B.𝑝𝑞 − 𝑟𝑠 C. 𝑠 𝑞 D. 𝑞
1. 2 answers
2. 128 views
3. Given that(𝑥 − 𝐴)2 + 𝐵 = 𝑥2 − 10𝑥 + 29, 𝑓𝑖𝑛𝑑 𝑡ℎ𝑒 𝑣𝑎𝑙𝑢𝑒 𝑜𝑓 𝐴 +
1. 2 answers
2. 106 views
If log2(3𝑥 + 𝑦) = 1 and log2 (𝑥 𝑦 ) = −2, find the values 𝑜𝑓 𝑥 𝑎𝑛𝑑 𝑦 A. 𝑥 = 8 5 , 𝑦 =
1. 2 answers
2. 139 views
Find the area of a triangle ABC with verticesA(2, 3), B(4, 7) and C(7, 3) A. 20 1 2 𝑢𝑛𝑖𝑡𝑠2. B. √10
1. 2 answers
2. 154 views
6. Given that sin(𝐴 + 𝐵) = sin 𝐴 cos𝐵 +cos 𝐴 sin𝐵, find the value of sin 105 °. A. √42 (√3 + 1) B. √42
1. 2 answers
2. 178 views
17. The expression2 tan 𝜗 1− tan2 𝜗 is identically equal to A. cos 2𝜃 B. sin 2𝜃 C. tan 2𝜃 D. cot 2�
1. 2 answers
2. 132 views
Express4 cos 𝑥 + 3 sin 𝑥 in the form Rsin(𝑥 + 𝜃)
1. 2 answers
2. 78 views
If 8^m=1/4 -2^3m. Find m
1. 4 answers
2. 65 views
Of the following, which influenced the idea of self-government in the colonies? Select all that apply.(2 points) The U.S.
1. 2 answers
2. 69 views
Apply the Property of Negative Integer Exponents to solve 3^−4. The answer should not contain any exponent expression or
1. 7 answers
2. 63 views
What were some reasons for the French and Indian War? Select all that apply.(2 points) Responses French and British both wanted
1. 7 answers
2. 93 views
Apply the Properties of Integer Exponents to generate equivalent expressions to 37⋅3−9 with only positive exponents, then
1. 4 answers
2. 48 views
(-2)^-3
1. 2 answers
2. 37 views