Benny

This page lists questions and answers that were posted by visitors named Benny.

Questions

The following questions were asked by visitors named Benny.

Plutonium-239 is used in nuclear bombs. Determine the number of protons and neutrons in plutonium-239. I really don't understand this. Can someone tell me how to do this? thanks What is the atomic number of Pu? Look it up on the periodic table...that is t...

4t^2-4/9(t+1) * 3t+3/2t-2

MATRIX EQUATION [ 3x ] [ 10+2y ] [ y ] = [ 5-x ] Solve for x.

Find the area of a triangle whose vertices have coordinates (2,-5), (6,1), and (-3,-4)

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 = -3(x+2)^2+3 d. y = 2(x-2)^2-3 Could you explain why you got your answer, too?

Solve -x^2=4x by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located.

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

* = square root!! ^2*x^5 / x^(-5/2) = ??

I am trying to write an essay on What ideas are true/untrue of the North.What do it means by ideas. Help??

-4x(2x - 4) - 3 - 5x

The masses of 1 mole of various gases are as follows: hydrogen about 2 grams, helium about 4 grams, nitrogen about 28 grams, oxygen about 32 grams and carbon dioxide about 44 grams. On the average how fast does a molecule of each gas move at 333 Celsius?

Explain why the pressure at depth h in a stationary fluid is `rho g h.

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 lift results?

Recall that with the CSMA/CD protocol, the adapter waits K.512 bit times after a collision, where K is drawn randomly. For K = 100, how long does the adapter wait until returning to Step 2 for a 10Mbps Ethernet? For a 100 Mbps Ethernet? Can anyone help me...

How many joules would be required to raise the temperature of 20g of ice at oC to water at15C?

if the pressure read by the barometer is 0.882atm, what is the height of the column of mercury in cm?

Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (Round your answer to four decimal places.) 1/3x^3 + 1/2x^2 + 8 = 0, x1 = −3 I got -3.4808, but it's wrong. Help?

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?

A car travels 15km northwards. 5km eastwards, 10km southwards, and 5km westwards to arrive at point P. Find its total displacement

A statistician is analyzing data to find a model. She has determined the following characteristics of the data. Which characteristics of the data defined the period? -The initial value is 5 -all of the values are negative -the difference between the maxim...

Explain why domain restrictions for inverse trigonometric functions are necessary? I’m having trouble understanding this topic could anyone explain? My teacher makes no sense :/

Find the common difference of this arithmetic sequence: a_(n) = -8n +14

a farmer has 100 meters of fencing from which to build a rectangle chicken run. he intends using two adjacent walls for two sides of the rectangular enclosure

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 brass?

What is the relationship between maximum height and Range

How many servings of punch are in 9/2 cups of punch, If a serving of punch is 3/5 cups plz help now

When a polynomial 𝑓(𝑥) is divided by (𝑥 + 2), the quotient is 𝑥2 + 2𝑥 + 1 and the remainder is 5. Find 𝑓(𝑥) A. 𝑓(𝑥) = 𝑥3 + 4𝑥2 + 7𝑥 + 5 . B. 𝑓(𝑥) = 𝑥3 + 4𝑥2 + 𝑥 + 5 C. 𝑓(𝑥) = 𝑥3 + 4𝑥2 + 𝑥 + 7 D. 𝑓(𝑥) = 𝑥3 + 4𝑥2 + 5𝑥 + 7

Evaluate ∑ (1 2)𝑟 ∞ 𝑟=1 A. 2 B. 1 C. 0.5. D. 0.25

Given that sin(𝐴 + 𝐵) = sin 𝐴 cos𝐵 + cos 𝐴 sin𝐵, find the value of sin 105 °. A. √42 (√3 + 1) B. √42 (√3 − 1) C. √42 (1 − √3) D. √6 + √2 1

Given that sin(𝐴 + 𝐵) = sin 𝐴 cos𝐵 + cos 𝐴 sin𝐵, find the value of sin 105 °. A. √42 (√3 + 1) B. √42 (√3 − 1) C. √42 (1 − √3) D. √6 + √2

17. The expression 2 tan 𝜗 1− tan2 𝜗 is identically equal to A. cos 2𝜃 B. sin 2𝜃 C. tan 2𝜃 D. cot 2𝜃

Given that log𝑒 3 , log𝑒 32 , log𝑒 33 , …. form an arithmetic progression 18. What is the common difference A. 2 B. 3 C. log𝑒 2 D. log𝑒 3

that log𝑒 3 , log𝑒 32 , log𝑒 33 , …. form an arithmetic progression What is the sum of the first of the first ten terms A. 55 B. 5 C. 5 log𝑒 3 D. 55log𝑒 3

. 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

If 𝑝 𝑞 = 𝑟 𝑠 , then 𝑝+𝑞 𝑟+𝑠 is equal to A. 𝑝𝑠 𝑞𝑟 B.𝑝𝑞 − 𝑟𝑠 C. 𝑠 𝑞 D. 𝑞 𝑠

Given that sin 𝑦 = −2√3 𝑎𝑛𝑑 tan 𝑦 = √3 , 𝑓𝑖𝑛𝑑 𝑦 A. 60° B. 120° C. 210° D. 240°

Given that log(2𝑥+2) log(𝑥+1) = 2, find the value of 𝑥 A. -2 B. 2 C. 3 D. 1

. Given that 𝑓(𝑥) = 3 cos 𝑥 + 2 sin 𝑥, where 0 ≤ 𝑥 ≤ 90, for what value of 𝑥 𝑖𝑠 𝑓(𝑥) maximum? A. 33.7 B. 56.3 C. 213.7 D. 236.3

Find the coefficient of 𝑥4 in the expansion of (1 − 2𝑥)6. A. -320 B. -240 C. 240 D. 320

A binary operation ∆ is defined on the set R, of real numbers by 𝑎 ∆ 𝑏 = 𝑎 + 𝑏√2. Find (2 ∆ − 3) ∆ 5 A. 2 + 5√2 B. 2 + 2√2 C. 2 − 3√2 D. −3 + 5√2

Two functions f and g are defined by 𝑓: 𝑥 → 𝑥 1+𝑥 𝑎𝑛𝑑 𝑔: 𝑥 → 𝑥 − 1, find the composite function 𝑔𝑜𝑓(𝑥) A. 𝑥 B. 1 1+ 𝑥 C. −𝑥 − 1 𝑥 D. 1 + 𝑥 𝑥

26. Find the quadratic equation whose roots are 3 − √2 𝑎𝑛𝑑 3 + √2 A. 𝑥2 + 6√2𝑥 + 7 = 0 B. 𝑥2 + 6√2𝑥 − 7 = 0 C. 𝑥2 + 6𝑥 − 7 = 0 D. 𝑥2 − 6𝑥 + 7 = 0

. Find the area of a triangle ABC with vertices A(2, 3), B(4, 7) and C(7, 3) A. 20 1 2 𝑢𝑛𝑖𝑡𝑠2. B. √10 𝑢𝑛𝑖𝑡𝑠2 C. 10 1 2 𝑢𝑛𝑖𝑡𝑠2 D. 10 𝑢𝑛𝑖𝑡𝑠2

A super ball bounces by 2 3 of its initial bounce when dropped on a hard surface. If it is dropped from a height of ℎ𝑐𝑚. 28. How high will the ball bounce on the 4th bounce A. 8ℎ 27 B. 27ℎ 8 C. 2ℎ 3 D. 3ℎ 2

A super ball bounces by 2 3 of its initial bounce when dropped on a hard surface. If it is dropped from a height of ℎ𝑐𝑚. 29. After what bounce would the ball have travelled a total distance of 2.74ℎ𝑐𝑚 A. 4 B. 5 C. 6 D. ∞

A super ball bounces by 2 3 of its initial bounce when dropped on a hard surface. If it is dropped from a height of ℎ𝑐𝑚. 30. What is the total distance the ball convers before it finally rests A. 243−1ℎ B. 243h C. 3−1ℎ D. 3h

A man’s salary increases by Ghȼ800.00 each year. If his total salary at the end of 12 years in Ghȼ1,852,800.00. Find his initial salary in the twelfth year. A. Ghȼ15,000,000.00 B. Ghȼ1,500,000.00 C. Ghȼ150,000.00 D. Ghȼ15,000.00

The roots of the quadratic equation 2𝑥2 − 5𝑥 + 𝑚 = 0 are ∝ 𝑎𝑛𝑑 𝛽, where 𝑚 is a real number. Find an expression for ∝2+ 𝛽2 in terms of 𝑚. A. 25 + 2𝑚 B. 25 4 − 𝑚 C. 25 −2m D. 25

If 𝐹(𝑛) denotes the set of factors of the natural number, including 𝑛 but excluding 1, find a number p such that 𝐹(12) ∩ 𝐹(18) = 𝐹(𝑝) A. 18 B. 6 C. 2 D. 3

Given that 𝑓(𝑥) = 3 cos 𝑥 + 2 sin 𝑥, where 0 ≤ 𝑥 ≤ 90, for what value of 𝑥 𝑖𝑠 𝑓(𝑥) maximum? A. 33.7 B. 56.3 C. 213.7 D. 236.3

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 < − 2 3 , 𝑥 > 2 D. 𝑥 < −2, 𝑥 > 2 3

36. For what values of n will 𝑎2 + 𝑛 = 3𝑎𝑛 − 1 − 2𝑎 have repeated roots? A. 𝑛 = 0, 𝑛 = 1 7 9 . B. 𝑛 = 0, 𝑛 = 4 C. 𝑛 = 0, 𝑛 = −1 1 2 D. 𝑛 = 0, 𝑛 = −1 7 9 3

Solve simultaneously the equations; log2 𝑥 − log2 𝑦 = −1 and log𝑦(6𝑥 + 𝑦) − log𝑦(4𝑥 − 𝑦) = 1 A. 𝑥 = 0, 2 𝑎𝑛𝑑 𝑦 = 0, 4 B. 𝑥 = −2, 0 𝑎𝑛𝑑 𝑦 = −4, 0 C. 𝑥 = 0, 4 𝑎𝑛𝑑 𝑦 = 0, 2 D. 𝑥 = −4, 0 𝑎𝑛𝑑 𝑦 = −2, 0

40. Express 4 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) X Y

39. Which of the following is the inequality if the graph below. A. 𝑥 − 𝑦 ≤ 0 B. 𝑥 + 𝑦 ≤ 0 C. 𝑦 − 𝑥 ≥ 0 D. 𝑦 + 𝑥 ≥ 0 4

. The shaded region in the diagram below represent A. (𝑋 ∪ 𝑌) ∩ 𝑍 B. 𝑌 ∩ 𝑋 ∩ 𝑍 C. (𝑋 ∩ 𝑌) ∪ 𝑍 D. 𝑋 ∪ (𝑌 ∩ 𝑍)

a. Given that sin2 𝑥, cos2 𝑥 𝑎𝑛𝑑 5cos2𝑥 − 3sin2 𝑥 are in arithmetic progression, find the value of i. cos2𝑥 ii. The common difference

11. a. A binary operation * is defined on the set of R of real numbers by 𝑎 ∗ 𝑏 = 𝑎2 − 2𝑎𝑏 + 𝑏2, where 𝑎, 𝑏 ∈ 𝑅. Find i. R, such that 2 ∗ 5 = √𝑟 ii. (𝑥+1) ∗ 𝑥 𝑥 , 𝑥 ≠ 0 𝑠𝑖𝑚𝑝𝑙𝑖𝑓𝑖𝑒𝑑 𝑎𝑠 𝑓𝑎𝑟 𝑎𝑠 𝑝𝑜𝑠𝑠𝑖𝑏𝑙𝑒

Find the value of 𝑘 if one root of the quadratic equation 𝑥2 − 𝑘𝑥 + 8 = 0 is the square of the other.

a. A farmer raises pigs and goats in a pen which can house at most 16 animals. She plans not to have more than 12 goats. If she spends Gh₵50.00 to raise a pig and Gh₵20.00 to raise a goat and has GH₵500.00 available for this project, find the maximum prof...

Find the exact value of 𝑏2 − 4𝑐 if the roots of 𝑥2 − 𝑏𝑥 + 𝑐 = 0 are two consecutive even numbers.

If 𝑝 𝑞 = 𝑟 𝑠 , then 𝑝+𝑞 𝑟+𝑠 is equal to A. 𝑝𝑠 𝑞𝑟 B.𝑝𝑞 − 𝑟𝑠 C. 𝑠 𝑞 D. 𝑞 𝑠

3. Given that (𝑥 − 𝐴)2 + 𝐵 = 𝑥2 − 10𝑥 + 29, 𝑓𝑖𝑛𝑑 𝑡ℎ𝑒 𝑣𝑎𝑙𝑢𝑒 𝑜𝑓 𝐴 + 𝐵 A. -9 B.-1 C.8 D. 9

6. Given that sin(𝐴 + 𝐵) = sin 𝐴 cos𝐵 + cos 𝐴 sin𝐵, find the value of sin 105 °. A. √42 (√3 + 1) B. √42 (√3 − 1) C. √42 (1 − √3) D. √6 + √2

Express 4 cos 𝑥 + 3 sin 𝑥 in the form Rsin(𝑥 + 𝜃)

If 8^m=1/4 -2^3m. Find m

Of the following, which influenced the idea of self-government in the colonies? Select all that apply. (2 points) The U.S. Constitution English Bill of Rights. The Declaration of Independence Virginia’s House of Burgesses Fundamental Orders of Connecticut

What were some reasons for the French and Indian War? Select all that apply. (2 points) Responses French and British both wanted control of the Ohio River Valley French and British both wanted control of the Ohio River Valley French and British fought ove...

Answers

The following answers were posted by visitors named Benny.

Vous ne grossissez pas parce que vous faites des sports.

Did you know that every time you social, that you are really saying socalie? is this true cuz my teacher said it was on the board.....

Que 5 is c(GOTO)

Yes, I believe you are Kim K.

But I doubt you look like Ariana Grande.

Its B, I took this test, trust me

Number 2 is executive number 7 is legislative 8 is judicial and number 9 is liberty

the ratio of Hln:ln- is 100:1, much greater than 10, therefore it will be yellow

Disregard what I said yesterday, it was incorrect. The ratio of is correct, but that actually means it will be red, because the acid predominates (not enough ionization to change the color)

I want to know what the last one is.

never mind i think it is 5 1/4 if i am wrong plz correct

oops lol did not see the check answer button😂 also yay people that did not type 4 years ago

i just looked at the word DAB like 90 times but i can confirm that the answer is DAB i took the quick check and it was right for conexsus (idk how to spell it derp....:p)

Apply the Property of Negative Integer Exponents to generate an expression equivalent to 7^−3⋅7^−5 with positive exponents only.(1 point) 7^−3⋅7^−5=

Apply the Property of Negative Integer Exponents to generate an expression equivalent to 5^−9/4^−12 with positive exponents only.(1 point) 5^−9/4^−12=

What were some reasons for the French and Indian War? Select all that apply. (2 points) Responses French and British both wanted control of the Ohio River Valley French and British fought over control of Native American fur trade The French wanted to take...

Which of the following principles is stated in the Declaration of Independence? (1 point) People have the right to free speech. Governments are appointed by God. British taxes were too high. Governments must be representative of the people.

apply the properties of integer exponents to generate equivalent expressions to 2^2/2^−4 with only positive exponents, then solve the expression. provide the solution as a whole number.(1 point) 2^2/2^−4=