# algebra2

Popular questions-
## Algebra2

A wave is modeled with the function y = 1/2 sin 3Θ, where Θ is in radius. Describe the graph of this function, including its period, amplitude, and points of intersection with the x-axis. My answers are Amplitude = 1/2 Period = 2pi/3 Intersection= (0,0),

*asked by Steve on May 1, 2017* -
## Algebra2

What is the 50th term of the sequence that begins -2,4,10,16? My answer is 292

*asked by Steve on May 18, 2017* -
## Algebra2

Does the relation in the table represent direct variation inverse variation or neither? If it is a direct or inverse variation, write an equation to represent the relation. (x,y) (5,2) (10,1) (15,2/3) (20,1/2)

*asked by Sally on October 17, 2016* -
## Algebra2

solve the equation cos theta - tan theta * cos theta = 0 for 0< theta < 2 pi My answer is pi/4,5pi/4

*asked by Steve on May 3, 2017* -
## Algebra2

Expand the logarithmic expression. log8 a/2 My answer is log8a-log8 2

*asked by Steve on November 22, 2016* -
## Algebra2

Simplify the rational expression. State any restrictions on the variable. (n^4-11n^2+30)/(n ^4 -7n^2+10) My answer is n^2-6/n^2-2 except +-sqrt5 and +-sqrt2

*asked by steve on February 6, 2017* -
## Algebra2

f(x)=3x-7 and g(x) = -2x-6 find (fog)(4)

*asked by Steve on January 21, 2017* -
## Algebra2

write an equation to represent the situation: if a player made 12 out of 15 free throws, how many consecutive free throws would she have to make to raise the percent to 85%.

*asked by Joleen on December 27, 2016* -
## Algebra2

A pentagon can be divided into 5 congruent triangles. The function y=5 tan theta models the height of each triangle. What is the area of the pentagon if theta = 54 degrees?

*asked by Steve on May 1, 2017* -
## Algebra2

The water level varies from 12 inches at low tide to 52 inches at high tide. Low tide occurs at 9:15 am. High tide occurs at 3:30 pm. What is a cosine function that models the variation in inches above and below the water level as a function of time and

*asked by steve on May 11, 2017* -
## Algebra2

Use the graph of y=sin2theta to find the value of sin 2 theta for theta=pi/4. a--1 b-0 c-0.5 d-1 my answer is -1

*asked by Steve on May 1, 2017* -
## Algebra2

A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the x-axis and then over the line y = x. A"B"C" are the coordinates of the reflected image. What is the A" coordinate?

*asked by Maranda on September 27, 2012* -
## Algebra2

for which value of theta is tan theta equal to sin theta? My answer is pi

*asked by steve on May 11, 2017* -
## Algebra2

What is the product in simplest form? State any restrictions on the variable. 4a^5/7b^4 times 2b^2/2a^4 My answer is 4a/7b^2 except a=0 and b=0

*asked by steve on February 6, 2017* -
## Algebra2

suppose c and d vary inversely and d=2 when c=17 write an equation that models that variation find d when c=68

*asked by Steve on February 19, 2017* -
## algebra2

how many solution are there to the equation below? 3x-10(x+2)=13-7x A.1 B.0 C.Infinitely many

*asked by Karla on June 10, 2015* -
## Algebra2

The function f(theta) and g (theta) are sine functions where f(0)=g(0)=0. The amplitude of f (theta) is twice the amplitude of g(theta). The period of f(theta) is one-half the period of g(theta). If g (theta) has a period of 2pi and fpi/4=4. Write the

*asked by steve on May 11, 2017* -
## Algebra2

is y=1/4x^0.5 a power function. Explain why or why not.

*asked by Steve on November 15, 2016* -
## Algebra2

Write an equation for the following transformation of y=x: a vertical stretch by a factor of 6. A. y=6x B.y=x/6 C.y=x+6 D.y=x-6 my answer is a

*asked by Steve on August 29, 2016* -
## Algebra2

Wind farms are a source of renewable energy found around the world. The power P (in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v (in meters per second). If a turbine generates 500kW in a 10m/s wind, how much power

*asked by Steve on November 10, 2016* -
## Algebra2

Find the values of the inverse function in radians. tan^-1(0.09) answer choices: a.-0.09+2pi n b. no such angle exists c.-1.48+ pi n d. -0.09+ pi n My answer is D

*asked by Steve on May 2, 2017* -
## Algebra2

The amount of oil used by a ship traveling at a uniform speed varies jointly with the distance and the square of the speed. The ship uses 30 barrels of oil in traveling 85 miles at 42 mi/h. How many barrels of oil are used when the ship travels 26 miles at

*asked by Steve on February 4, 2017* -
## Algebra2

Which correctly describes the roots of the following cubic equation? x^3-5x^2+3x+9=0

*asked by Steve on November 15, 2016* -
## algebra2

If the discriminant of a quadratic equation is equal to zero, how many real solutions does the equation have? A. 0 B. 1 C. 2 D. 3 please help!!

*asked by laltk on June 25, 2012* -
## Algebra2

Solve the inequalities by graphing y3x-1

*asked by Steve on September 8, 2016* -
## algebra2

To which graph does the point (–1, 3) belong?

*asked by Rayniya on November 21, 2010* -
## Algebra2

Write an equation of a parabola with a vertex at the origin and a directrix at y=-5. my answer is focus 6,0, directrix =-6

*asked by Steve on March 8, 2017* -
## algebra2

a company has estimated that the probabilities of success for 3 products introduced in the market are 1/5,2/3, and 1/2, respectively. Assuming independence, find the probability that exactly 1 product is successful.

*asked by glenda on July 6, 2013* -
## Algebra2

Graph the given function using the given values of x. 1. f(x) = 5 ; x = -3, -2, -1, 0, 1, 2, 3 2. g(x) = x^3 + 2 ; x = -2, -1, 0, 1, 2

*asked by Sara on November 29, 2012* -
## algebra2

What is the value of the discriminant for the quadratic equation 2a2+ 7a + 3 = 0? Please Help!

*asked by laltk on June 25, 2012* -
## algebra2

simplify 9 power of two= 9-power of two= (one nineth) power of two= (one nineth) - power of two= -9 power of two= (-9) power of two = help please

*asked by Tr on June 13, 2010* -
## Algebra2

3tan 1/3 theta=8 in the interval from 0 to 2pi. Solve the equation.

*asked by Steve on May 1, 2017* -
## algebra2

A kite string is 102 feet long. the angle between the kite string and the ground is 54.9. how high is the kite

*asked by dd on December 10, 2014* -
## Algebra2

Determine if the given function is even, odd or neither. 1. f(x)= 3x^4 -2x^2 Even? 2. f(x)= x^3+x

*asked by BillyBob on September 17, 2012* -
## Algebra2

how do you solve this? A dice is rolled twice. What is the probability of getting a multiple of 3 on the first roll or a total of 7?

*asked by A on April 10, 2012* -
## Algebra2

The area of a rectangular field is x^2-x-72 m^2. The length of the field is x+8 m. What is the width of the field in meters?

*asked by joshua on April 5, 2012* -
## Algebra2

Pepe throws a penny off the empire state building. The penny's height above ground can be modelled using the equation h=-16.1t^2+5t+1250 where t is time in seconds. How high is Pepe when he throws the penny? How many seconds does it take the penny to hit

*asked by Ashley on February 6, 2018* -
## Algebra2

A sound wave is modeled with the equation y = 1/4 cos 2pi/3 θ. a. Find the period. Explain your method. b. Find the amplitude. Explain your method.

*asked by Steve on May 1, 2017* -
## Algebra2

How far apart are the foci of an ellipse with a major axis of 34 feet and a minor axis of 16 feet? a-15 b-12 c-9 d-30 my answer is 9

*asked by Steve on March 31, 2017* -
## Algebra2

What are the vertices, foci, and asymptotes of the hyperbola with the equation 16x^2-4y^2=64? What would the formulas be to find the answers?

*asked by steve on March 12, 2017* -
## Algebra2

Write an equation of an ellipse in standard form with center at the origin and with the given vertex and co-vertex vertex at (-3,0) and co-vertex at (0.2)

*asked by Steve on March 8, 2017* -
## Algebra2

write a recursive formula for the sequence 5,18,31,44,57 then find the next term. My answer is a1=5,an=an-1+13 The next term would be 70.

*asked by Steve on February 19, 2017* -
## Algebra2

f(x)2x^(2)+x-3 g(x)=x-1 Perform the indicated operation, then find the domain (f*g)(x)

*asked by Steve on January 14, 2017* -
## Algebra2

Which points are the best approximation of the relative maximum and minimum of the function? f(x)=x^3+3x^2-9x-8

*asked by Steve on October 31, 2016* -
## Algebra2

Let g(x) be the reflection of f(x)=x^2+5 What is the function rule for g(x)? I know the first part would be-x^2 but not sure if the 2nd part is a plus or minus.

*asked by Steve on August 29, 2016* -
## Algebra2

I got this answer for a problem, and I'm not sure if it's right. Can someone tell me if I'm correct? 1.(2+4i / 3-i) = 6/7+5/7i

*asked by Tara on August 16, 2012* -
## Algebra2

There are 52 blades of grass in 2 square inches of lawn. there are 580 blades of grass in 8 square inches of the same lawn. what equation models the y blades of grass found in x square inches of lawn?

*asked by Hollie on September 27, 2011* -
## algebra2

What is the value of x in the solution to the system y = 4x + 3 and 3x + 2y = -16? (Round to the nearest integer if necessary.)

*asked by meghan on February 1, 2011* -
## algebra2

determine the domain and range:{(x,y)|y2=5x}

*asked by anna on January 6, 2011* -
## algebra2

On the graph of the equation 8x – 3y = 24, what is the value of the y-intercept?

*asked by Rayniya on November 21, 2010* -
## algebra2

state the number of positive real zeros, negative real zeros, and imaginary zeros for g(x) = 9x^3 - 7x^2 +10x - 4

*asked by aisha on December 22, 2009* -
## Algebra2

Given the arithmetic sequence 11, 5, -1, ..., find .S(30)- on the bottom

*asked by Nora on May 12, 2020* -
## Algebra2

The first candle was sold at 10$ and the store sold 2500 of them. Then they decreased to 9.50$ and sold 2800, they decreased more to 9$ and sold 3100. Find a quadratic formula that will model the profit from this based on price change. What selling price

*asked by Ashley on February 6, 2018* -
## Algebra2

what are the x and y intercepts 3x-7y=42

*asked by Anonymous on February 3, 2018* -
## Algebra2

Use the formula D=rt where D is distance, r is rate, and t is time. The distance is 40 Julio finishes the 40 yd dash in 4.39 seconds. Rich finishes it at 6.18 seconds 1. Solve D=rt for rate. (1 pt) D/t=r 2. Use the statistics given in Act Two and your

*asked by Hailey on October 15, 2017* -
## algebra2

Find the sum of the following series. 14/n-=1 (2n+1)

*asked by Steve on May 18, 2017* -
## Algebra2

Write three trigonometric equations each with the complete solution pi+2pin

*asked by steve on May 10, 2017* -
## Algebra2

Find the values of the inverse function in radians. 1. sin^-1(0.65)? answer choices: a. 0.71+2pi n and -0.71+2pi n b. 0.71+2pi n and -3.85+2pi n c. 0.86+2pi n and -0.86 +2pi n d. -0.61+2pi n and 2.54+2pi n My answer is B

*asked by Steve on May 2, 2017* -
## Algebra2

A spinner is divided into10 equal sections. What is the probability of spinning it and landing on a number that is divisible by 5? they are 5,14,4,9,15,13,2,7,21,11 a-2/5 b-1/10 c-1/5 d-10/2 my answer is c

*asked by Steve on April 1, 2017* -
## Algebra2

What is an equation of a parabola with the given vertex and focus? vertex(-2,5) focus(-2,6)

*asked by Steve on March 8, 2017* -
## Algebra2

-3x^2+12y^=84 What are the domain and range My answer domain: all real numbers range: y (less than -) -sqrt7 or sqrt7

*asked by Steve on March 8, 2017* -
## Algebra2

What are it's line of symmetry? 4x^2+y^2=9 my answer is it has 2 lines of symmetry, the x and y axis

*asked by Steve on March 8, 2017* -
## Algebra2

4x^2+4y^2=64. what are the domain and range? my answer is domain;all real numbers range;-4

*asked by Steve on March 8, 2017* -
## Algebra2

What is the sum of the first 10 terms of the sequence defined by an = 2n - 3?

*asked by Steve on March 6, 2017* -
## Algebra2

Does the relation in the table represent direct variation, inverse variation, or neither? if it is direct or inverse variation, write an equation to represent the situation. Explain your answer x 5, 10, 15, 20 Y 2, 1, 2/3, 1/2

*asked by Steve on February 19, 2017* -
## Algebra2

Solve the equation 3^5sqrt(x+2)^3+3=27 My answer is 30

*asked by Steve on February 3, 2017* -
## Algebra2

let f(x) = -2x+4 and g(x) = -6x-7 find f(x)-g(x)

*asked by Steve on January 21, 2017* -
## Algebra2

Determine whether the function represents exponential growth or decay. Then find the y-intercept. y=4(5/6)^x

*asked by Steve on November 15, 2016* -
## Algebra2

What is the vertex form of the equation? Show steps y=-x^2+12x-4

*asked by Steve on October 31, 2016* -
## Algebra2

Complex numbers can be graphed on the xy coordinate plane. TRUE OR FALSE My answer is yes

*asked by Steve on October 31, 2016* -
## Algebra2

What transformations change the graph of (f)x to the graph of g(x)? f(x) = -7x² ; g(x) = -35x²+5

*asked by Steve on August 29, 2016* -
## algebra2

A farmer counted the number of cows and chickens by counting heads and legs. If he counted 35 heads and 78 legs, how many cows and how many chickens did he have?

*asked by Anonymous on July 7, 2016* -
## algebra2

write the slope-intercept form of the equation of the line through the given point with the given slope. through:(-1,-2), slope=6

*asked by Gwen on August 20, 2015* -
## algebra2

is f(x)= x^3-x^2-9x+9 a one to one function

*asked by karla on June 15, 2015* -
## algebra2

How many solutions are there to the equation below? 220=2x-12x a.1 b. Infinitely many c.2

*asked by Karla on June 10, 2015* -
## algebra2

s 1103-01-02-00-00_v2_files/i0050000.jpg a true statement? If yes, identify the name of the property demonstrated.

*asked by samad on May 19, 2015* -
## algebra2

Bill invested $15,000 in three accounts. The savings account paid 1% interest, the Mutual fund paid 10% interest, and the CD paid 2% interest. In one year, Bill earned $210 in interest. If Bill put four times as much in savings as he put in the CD, how

*asked by McKInsey on November 18, 2013* -
## algebra2

What are the mean, variance and standard deviation of these values? 62,41,54,60,49,58.

*asked by Lea on April 8, 2013* -
## Algebra2

Is this right?! G(x)=x^3+2 ; x=-2.-1.0,1,2 g(-2) ; -2^3+2=-6 g(-1) ; -1^3+2=1 g(0) ; 0^3+2=2 g(1) ; 1^3+2=3 g(2) ; 2^3+2=10

*asked by Unknown on November 30, 2012* -
## Algebra2

Write the standard form of the equation of the circle with the given center and radius. 1. center (-2, 0) and r = 3

*asked by Pablo on November 29, 2012* -
## Algebra2

Finding The greatest integer function. 1. f(9.1) is the answer 9 ??

*asked by Unknown on August 29, 2012* -
## algebra2

An ice-cream parlor sells sundaes with 3 different types of ice-cream and 4 different toppings. They have 8 flavors of ice-cream and 10 toppings for their customers to chose from. What is the probability that a customer orders a sundae including the

*asked by Diana on May 26, 2012* -
## Algebra2

The function f(t)=100,000/1+5000e^(-t) represents the population of an endangered species bird t years after they were introduced to a non-threatening habitat. a.In what year will there be 70,000 birds? b.How many birds were intially introduced to the

*asked by MV on December 6, 2011* -
## Algebra2

log((x(sqrtã(X^2+1)/(x+1)^(2/3)))^6 Any ideas would be great, thanks

*asked by MV on December 5, 2011* -
## algebra2

you are creating a window display at a toy store using wooden blocks. the display involves stacking blocks in triangular forms. you begin to display with 1 block, which is your first "triangle," and then stack three blocks, two on the bottom and one on the

*asked by jaydene on October 12, 2011* -
## algebra2

y varies directly as the square of x. When x = 2, y = 40. Find x when y = 640.

*asked by Rayniya on November 21, 2010* -
## algebra2

in the chess club, the ratio of boys to girls is 6:5.there are three more boys than girls in the club. how many members are in the club?

*asked by naomi on October 12, 2010* -
## algebra2

the basketball team has played 21 games. the ratio of win to loses is 5:2. how many games has the team won?

*asked by naomi on October 12, 2010* -
## algebra2

1. solve: 5+4x-2x^2=0 2. find k so that the like kx-3y=4k is a. parallel to like 2x-4y=1 - for this i got y=1/2x-1/4... is that right? b. perpendicular to line x-6y=2

*asked by Anonymous on September 18, 2010* -
## algebra2

Two cards are drawn at random froma standard deck of 52 cards without replacement. What is the probability if drawing a 7 and a king in that order?

*asked by Tosha on June 9, 2010* -
## algebra2

Two consecutive positive integers have the property that one integer times twice the other equals 612. What is the sum of these two integers?

*asked by Henry on May 9, 2010* -
## Algebra2

Simplify, help please sqrt-3 + sqrt27

*asked by teri on April 2, 2010* -
## algebra2

list all of the possible rational zeros of f(x) = 3x^5 - 7x^3 + 2x - 15.

*asked by aisha on December 22, 2009* -
## algebra2

2x -2x^=o

*asked by tony on June 1, 2008* -
## algebra2

Suppose it takes 3 days for a space vehicle to travel from Earth to the moon. About how long would it take for the same vehicle traveling at the same speed to Jupiter? Moon - 240,000 mi Jupiter - 391,000,000. The space vehicle would take how many days to

*asked by bb on February 2, 2008* -
## Algebra2

The function h(t) = -4.9t^2 + 49t expresses the approximate height, h, in meters, of a ball t seconds after it is launched vertically upward from the ground with an initial velocity of 49 meters per second. After approximately how many seconds will the

*asked by Peter on November 28, 2018* -
## algebra2

so I'm factoring quadratics and this is the problem; 2x^2-50 you would multiply a(c) which would just give me -100 but I don't know what to do after this.

*asked by juana on August 26, 2018* -
## Algebra2

i need math help is there someone who can help me

*asked by MR.BEAN the 2ND on February 14, 2018* -
## Algebra2

Two car leaves SLC traveling in opposite directions. One car travels at a speed of 80Km/h and the other at 96km/h. In how many hours will they be 528 km apart?

*asked by MR.BEAN the 2ND on February 6, 2018* -
## Algebra2

Toto throws a ball up in the air. The height of the ball can be modelled using the equation h=-16.1t^2+73.5t+5.5 where t is time in seconds. At what time will the ball reach its maximum height? What is the maximum height? How long does it take for the ball

*asked by Ashley on February 6, 2018*