# A

Newest questions and responses by A-
## math

what is b^2

*asked on March 13, 2019* -
## math

A diver is on the diving platform at Wonder Mountain in Canada’s Wonderland. She jumps up and dives into the water at the base of the mountain. The equation is d = -3t^2 + 6t + 45 At what time is she 36 m above the water? When is she less than 21 m from

*asked on March 8, 2019* -
## math

d = 0.08t^2 - 1.6t + 9 A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from the detector. When is the student closest to

*asked on March 7, 2019* -
## math

d = 0.08t^2 - 1.6t + 9 A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from the detector. How far is the student from the

*asked on March 7, 2019* -
## math

d = 0.08t^2 - 1.6t + 9 A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from the detector. How far is the student from the

*asked on March 7, 2019* -
## math

D = 0.08t^2 - 1.6t + 9 Why does this equation above fits this model: A student stands facing a motion detector. He quickly walks toward the detector, slows down, stops and then slowly walks away from the detector. He speeds up as he gets farther away from

*asked on March 7, 2019* -
## math

An object is launched at 19.6 m/s from a 58.8 m tall platform. The equation for the object's height above the ground (y) at time tseconds is y = –4.9t2 + 19.6t + 58.8 Use the quadratic formula to find the roots of this equation. What do these numbers

*asked on March 6, 2019* -
## math

For what value of k does the equation x2 + kx + 9have: Two distinct real roots One real root No real root

*asked on March 6, 2019* -
## physics

A uniform meter stick ( 100 cm long) that weighs 0.50 N has a 2 N weight located at the 30 cm mark (from the left) and a 5 N weight at the 85 cm mark (from the left). Where along the meter stick is the center of gravity of this system?

*asked on March 6, 2019* -
## history

How is the concept of patriotism used to persuade people to donate to charities for soldiers' families?

*asked on March 5, 2019* -
## math

Is my answer correct? Write this quadratic function in the vertex form y = 4(x+5)(x-2) = 4(x² + 3x - 10) = 4(x² + 3x + 9/4 - 10 - 9/4) = 4(x² + 3x + 9/4) - 49 = 4(x+3/2)² - 49 Ans: y = 4(x+3/2)² - 49 Vertex = (-3/2, -49)

*asked on March 4, 2019* -
## math

Is my answer correct? Write this quadratic function in the vertex form y = 4(x+5)(x-2) = 4(x² + 3x - 10) = 4(x² + 3x + 9/4 - 10 - 9/4) = 4(x² + 3x + 9/4) - 49 = 4(x+3/2)² - 49 Ans: y = 4(x+3/2)² - 49 Vertex = (-3/2, -49)

*asked on March 4, 2019* -
## math

Find the domain and range of the function y= -3(x-1/3)^2+4/3

*asked on March 4, 2019* -
## Math

Determine the characteristics of the quadratic function: y = 4(x + 5)(x – 2) Organize these in a chart form, with rows for "Domain", "Range", "Vertex" and "Opens: (Up/Down)"

*asked on March 3, 2019* -
## math

Write this equation in the vertex form: y= -3x^+2x+1

*asked on March 2, 2019* -
## Chemistry

Does anyone know how to get the conjugate base of this compound? (Ni(H2O)6)^3+ (aq)

*asked on March 2, 2019* -
## politicss

why is a new democratic party important?

*asked on March 1, 2019* -
## Politics

What did Tommy Douglas do that made him such a great Canadian? I need 2 others reason I already have that he Brought in universal health care

*asked on March 1, 2019* -
## politics

Why is free health care important in a democratic society?

*asked on February 28, 2019* -
## math

The b2 − 4ac part of the formula is called the discriminant. What happens if the discriminant is greater than 0? equal to 0? less than 0?

*asked on February 27, 2019* -
## history

In what ways could one contribute to the war effort from Canada?

*asked on February 27, 2019* -
## civics

identify the three qualities of ideal citizenship that Lester Bowels Pearson has demonstrated

*asked on February 27, 2019* -
## math

The degree of g(x)= 2x^2+x-1 is A. 3 B. 1 C. -1 D. 2

*asked on February 26, 2019* -
## civics

Why is it important to have many different ways of resolving conflicts in our society.?

*asked on February 26, 2019* -
## history

why does society need war heroes?

*asked on February 25, 2019* -
## Math

Write the equation in vertex form: y= -3x^2+12x+15

*asked on February 25, 2019* -
## math

Is my answer correct? 6y^2-96/2y^2+18y+40 (6y^2-96)/(2y^2+18y+40) = 6(y² - 16)/[2(y² + 9y + 20)] = (6/2)(y-4)(y+4)/[(y+4)(y+5)] = 3(y-4)/(y+5) : y ≠ -5, y ≠ -4

*asked on February 22, 2019* -
## Math

Simplify, stating any restrictions on the variables: a. 18a^6bc^7d^3/ 12a^2b^4c^7d b.x^2+5x+6/x^2-2x-15 c. 6y^2-96/2y^2+18y+40

*asked on February 22, 2019* -
## math

Describe the shapes of each of the following types of function. For each one, state whether or not there are restrictions on the domain or range, and explain why. Linear Quadratic Square Root

*asked on February 21, 2019* -
## Civics

Consider the issue of Wind Turbines and find two different viewpoints on the controversy; how do they differ? Why do you think they differ? What beliefs and values do they have that might influence their perspective on the issue?

*asked on February 19, 2019* -
## English

why is simile effective in describing a sound

*asked on January 25, 2019* -
## Social Studies

Compare and contrast the treatment of different religions by rulers of the Arab empire.

*asked on January 24, 2019* -
## Social Studies

what does it mean to have good commnication in a marriage?

*asked on January 22, 2019* -
## history

Several US leaders wanted no part in imperialistic practices. Why did these officials think imperialistic policies were such a bad idea?

*asked on January 17, 2019* -
## Engineering

6. classical mechanics depends heavily on A. quantum leaps B. ancient theories C. general observations * D. mathematical solutions 7. a virus is a parasite because A. it hunts its prey * B. it only impacts plants C. it lives of other organisms D. it is the

*asked on January 17, 2019* -
## social

What you would do to ensure a strong relationship in your own life?

*asked on January 15, 2019* -
## English

If you guys were trying to survive the Titanic How do you think you would feel? How would you react? What would you do to secure your survival?

*asked on January 14, 2019* -
## math

How many solutions will a system of linear equations have if the lines have the same slopes, but different y-intercepts?

*asked on January 8, 2019* -
## English

how does global warming connect to overpopulation?

*asked on January 4, 2019* -
## Math

-4/10x -9 < 9/10 = x < 24 3/4 Did I do this right? was solving for the inequality and the -4/10x is together.

*asked on November 1, 2018* -
## Math

-2/5x-9

*asked on November 1, 2018* -
## Chemistry

11 mL of 0.0100 M HCl are added to 25 mL of 0.0100 M acetic acid. What is the pH of the resulting solution?

*asked on October 13, 2018* -
## Math

-9=5/17n A. n=153/5 B. n=5/153 C. n=-17/45 D. n=-45/17

*asked on September 29, 2018* -
## Math

3(p+q)=p solve for p

*asked on September 29, 2018* -
## Math

What is the simplified version of this expression 28st/-4t the / meaning its a fraction

*asked on September 21, 2018* -
## Homework help

Is there any way to post questions with pictures?

*asked on September 12, 2018* -
## History

What impact did imperial Spain have on the Americas? Spanish culture came to dominate and replace native cultures. Local leaders were replaced by Spanish parliamentary assemblies. Financing from Spain started the industrialization of the Americas.

*asked on August 3, 2018* -
## Calculus2

Find the area of the region enclosed by the inner loop of the curve. r = 4 + 8 sin(θ)

*asked on August 3, 2018* -
## calculus2

A manufacturer of corrugated metal roofing wants to produce panels that are u = 48 in. wide and 2 in. thick by processing flat sheets of metal as shown in the figure. The profile of the roofing takes the shape of a sine wave with equation y = sin(πx/12).

*asked on July 21, 2018* -
## calculus2

How do I evaluate this integral? integral from 0 to 24 of the √(1+[(π/3)*cos((πx/3)]^2)

*asked on July 21, 2018* -
## calculus2

Evaluate the integral. ∫arctan(√x) dx

*asked on July 9, 2018* -
## calculus2

Evaluate the integral. ∫[0,1](12/4x^2+5x+1)dx

*asked on July 8, 2018* -
## calculus2

Evaluate the integral using the indicated trigonometric substitution. (Use C for the constant of integration.) ∫√((x^2-4)/x)dx x=2sec(t)

*asked on July 6, 2018* -
## calculus2

A tank is full of water. Find the work required to pump the water out of the spout. (Use 9.8 m/s^2 for g. Use 1000 kg/m^3 as the density of water. Assume r = 9 m and h = 3 m.) The tank is a spherical shape with r as the radius(9m). On top of the tank is a

*asked on June 28, 2018* -
## calculus2

Use cylindrical shells to find the volume V of the solid. A right circular cone with height 9h and base radius 5r. The answer is 75πhr^2 but my answer is 39πhr^2. How???

*asked on June 25, 2018* -
## calculus2

Use cylindrical shells to find the volume V of the solid. A sphere of radius r

*asked on June 24, 2018* -
## calculus2

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.y = x − 1, y = 0, x = 8; about the x-axis.

*asked on June 18, 2018* -
## calculus2

Find its area. y = sec^2(x), y = 8 cos(x), −π/3 ≤ x ≤ π/3

*asked on June 15, 2018* -
## chem

Why does temp of water used for transferring and washing the precipitate matter? 1. to maximize evaporation 2. to minimize evaporation 3. to maximize the amount of product that dissolves in water

*asked on June 5, 2018* -
## Language Arts *Last One I Promise*

1. If you were writing a brief profile of Rosa Parks explaining why you admire her, which of the following sentences would make the best thesis statement? In 1955, Rosa Parks refused to give up her seat on a bus. Rosa Parks's refusal to give up her seat

*asked on May 25, 2018* -
## chem TITRATION

1. If a student fails to remove a large air bubble in the buret before beginning the titration, what will be the effect on the volume of titrant required to reach the titration endpoint? A. The student will record a volume that is SMALLER than it should be

*asked on May 25, 2018* -
## Language Arts

*First off sorry there are so many, I just wanted to check because it's always better safe than sorry* Identify the correctly punctuated sentence in each group. A.) Do you know where Bailey shoes are? B.) Do you know where Bailey's shoes are?* C.) Do you

*asked on May 25, 2018* -
## Language Arts

Identify the incorrectly punctuated sentence The child wore a pink cotton shirt. We had a tiring, hot day outdoors. She cooked a delicious healthy meal.**** (I think it's missing a comma) The game was a suspenseful, exciting experience.

*asked on May 25, 2018* -
## LA

. Which of the following quotes from "The Morning of June 28, 1948" Best describes the aversion that the public felt toward Shirley Jackson's short story "The Lottery?" A) “As a matter of fact, when I read it over later I decided that except for one two

*asked on May 25, 2018* -
## Language Arts

n Edgar Allan Poe's "The Cask of Amontillado," the literary device of foreshadowing is used to create mystery when Montressor tells Fortunato a. "You are a man to be missed." b. "A draught of this Medoc will defend us from the damps." c. "You were not to

*asked on May 25, 2018* -
## conversions math

convert 70.5 in^3 to cubic feet? how would you convert this

*asked on May 22, 2018* -
## chemistry

If you have 1.00 M sodium chloride solution, and you have 300. mL of it, how many grams of sodium chloride are there?

*asked on May 15, 2018* -
## Social Studies

How did the end of world war 2 impact Minnesota's economy? How did the GI Bill help encourage economic growth in Minnesota and the rest pf the naiton? How are the growth of highways and suburbs related?

*asked on April 30, 2018* -
## Chem

A dilute aqueous solution of Na2SO4 is electrolyzed between Pt electrodes for 3.70 h with a current of 2.77 A . Part A What volume of gas, saturated with water vapor at 25∘C and at a total pressure of 742 mmHg , would be collected at the anode? The vapor

*asked on March 31, 2018* -
## Chem

At 298 K, 1.20 mol BrCl(g) is introduced into a 10.0 −L vessel, and equilibrium is established in the reaction. BrCl(g)⇌1/2Br2(g)+1/2Cl2(g) A) Calculate the amount of BrCl(g) present when equilibrium is established. [Hint: Use ΔG0[Br2(g)]=3.11kJ/mol,

*asked on March 31, 2018* -
## chemistry

At 298 K, 1.20 mol BrCl(g) is introduced into a 10.0 −L vessel, and equilibrium is established in the reaction. BrCl(g)⇌1/2Br2(g)+1/2Cl2(g) A) Calculate the amount of BrCl(g) present when equilibrium is established. [Hint: Use ΔG0[Br2(g)]=3.11kJ/mol,

*asked on March 31, 2018* -
## Physics

The binding energy of a nucleus is the amount of energy needed to A.Remove a proton from the nucleus. B.Remove a neutron from the nucleus. C.Disassemble the nucleus. D.Fragment the nucleus. E.Fuse or join two of the nuclei together. Please help!

*asked on March 29, 2018* -
## physics

A 68 kg stunt- woman falls off a bridge and travels 32.0 before colliding with a pile of mattresses. The mattresses are compressed 2.00 m before she is brought to rest. Calculate the magnitude of the average force exerted by the mattresses on the

*asked on March 26, 2018* -
## Writing

Essay question: How does playing violent video games influence violence in those who play them? Playing violent video games influence violence in those who play them? *Those who play them: I clarified my audience to specifically adolescents because young

*asked on March 26, 2018* -
## Physics

On a cold winter day, the outside temperature is –5.0 °C while the interior of a well-insulated garage is maintained at 20.0 °C by an electric heater. Assume the walls have a total area of 75 m2, a thickness of 0.15 m, and a thermal conductivity of

*asked on March 18, 2018* -
## Chemistry

What is the final temperature when 2.50 x 10^5 J are added to 0.950 kg of ice at 0.0 degrees C? The specific heat capacity of water is 4186 J/(kg·degrees C) and the latent heat of fusion for ice is 3.35×10^3 J/kg.

*asked on March 15, 2018* -
## physics

If a very large iceberg were to float to warmer waters and melt, what, in principle, would happen to the overall sea-level? A. sea-level would rise very slightly. B. sea-level would fall very slightly. C. sea-level would stay the same. *I would say A

*asked on March 7, 2018* -
## Physics

A basketball player makes a jump shot. The 0.650-kg ball is released at a height of 1.80 m above the floor with a speed of 7.80 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.40 m/s. What is the work done on the ball by air

*asked on March 6, 2018* -
## Calculus

The total stopping distance T of a vehicle is shown below, where T is in feet and x is the speed in miles per hour. T = 2.5x + 0.5x^2 Approximate the change and percent change in total stopping distance as speed changes from x = 15 to x = 18 miles per

*asked on March 3, 2018* -
## physics

An electron experiences an electric force of 0.70 nN . What’s the field strength at its location?

*asked on March 3, 2018* -
## math

A parking lot space is in the shape of a rectangle. If the space has a length of 23 feet and a width of 12 feet, what is the area of the parking space?

*asked on February 14, 2018* -
## Calc (Derivatives)

I understand finding the derivative and there is a simpler way of doing so, however, can someone show you derive at these answers by the DEF'N of Derivatives? Much appreciated! Question 1: Find, from the definition, the derivative, f'(x), for

*asked on January 30, 2018* -
## Calc: Limits

how to calculate the limit: *I got confused especially with the square root. 1. lim as x approaches 2 (squareroot x^2 +5)-3 / (x-2) 2. lim as θ (theta) approaches zero (tan^2 (5θ) / (sin (3θ) sin (2θ) )

*asked on January 29, 2018* -
## English comp

I need suggestions on how I could rephrase these without being repetitive and that the point comes across. Thank you (: 1. Alcohol is a dangerous recreational substance that many Americans very much abuse to what their body could take. 2. The reason why

*asked on December 11, 2017* -
## help[

what is a + a?

*asked on November 21, 2017* -
## Physics

A girl delivering newspapers travels 1 blocks west, 2 blocks north, then 4 blocks east. What is the magnitude of her resultant dis- placement? Answer in units of blocks. 002 (part 2 of 3) 10.0 points Find the direction (measured from due east, with

*asked on November 19, 2017* -
## Algebra 1

Breathless Cosmetics now offers 24 shades of eye shadow, 20% more than last year. How many shades were offered last year?

*asked on October 15, 2017* -
## statistics

In the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1, 2,..., 36. To play the game, a metal ball is spun around the wheel and is allowed to fall into one of the numbered slots. If the number of the slot the ball falls into

*asked on October 11, 2017* -
## Bio

There are a lot of components to the question. How can I answer this with a paragraph? Need help. Explain the role of sex chromosomes in inheritance> Answer must include: 1. Anatomical differences as result of XX/XY, 2. Arrangement and structure of X and

*asked on October 7, 2017* -
## physics

an 85.0kg mountaineer remains in equilibrium while climbing a vertical cliff. the tension force in the supporting rope is 745 N. Find the magnitude of the reaction force F, which the cliff exerts on the mountaineer's feet.

*asked on October 3, 2017* -
## Physics

Two cars with different motors are competing. One of the cars accelerate från 0-90 km/h on 12 seconds, the other one accelerate from 0-90 km/h on 20 seconds. The acceleration is the same all the time. After 90km/h, the velocity is constant. How many

*asked on September 20, 2017* -
## Physics

A train has a velocity of 117 km/ h and discover another train standing stil 1200 meters away. The train starts immediately to brake. After 10 seconds the other train finally starts to move away from the first train. The acceleration is equable of both

*asked on September 19, 2017* -
## Math

Complete the table and state the rule. Input | Output 0|0 |3 2| 3|9 | 5|15 6| I think the rule is Output = Input x 3 but I don't know how the rule should be worded. I think the chart should look like: Input | Output 0|0 1|3 2|6 3|9 4|12 5|15 6|18

*asked on September 18, 2017* -
## la

The speaker in "Birches" compares the boy's climbing to a. girls dying there hair b. sweeping up broken glass c. a forest full of spiderwebs d. filling a cup to the top I think D

*asked on September 17, 2017* -
## History

Economic principle # 1 is " principle choose". Employers choose to offer benefit packages to their employees. Apply the key economic principle "the consequences of choices lie in the future" to this decision. What are the important costs and benefits that

*asked on September 14, 2017* -
## Calculus

Rectilinear Motion Discuss the Velocity, Acceleration, and Speed: 1. s(t)=2t^2 +8t-7 2. s(t)=3t^4 -16t^3 +24t^2

*asked on September 12, 2017* -
## Trigonometry

State the quadrant in which theta lies. sin(theta) > 0 and cos(theta) > 0 How can I determine this? Please explain.

*asked on June 4, 2017* -
## Trigonometry

Point P is located at the intersection of the unit circle and the terminal side of angle theta in standard position. Find the coordinates of P to the nearest thousandth. theta = -105degrees Please explain the steps. I'm completely stuck.

*asked on June 1, 2017* -
## Math

In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at lest must have failed in all the four subjects ?

*asked on May 26, 2017* -
## Math

Write a rule for the nth term of the arithmetic sequence. -12, -5, 2, 9

*asked on May 16, 2017*