# Posts by Jake

Total # Posts: 2,288

Algebra
If a quadratic has a vertex at (-2,2) and passes through (-1,0) what is its equation in standard form? A. y = -2(x-2)^2 + 2 B. y = -2(x+2)^2 + 2 C. y = -(x+2)^2 - 2 D. y = (x+2)^2 + 2 Is the answer B?

Math
it's not cheating it's a pretest question

Chemistry
consider the following reaction at 298K 4Al(s)+3O2(g) yields 2Al2O3(s) delta H= -3351.4 Kj find delta S sys find delta S surr find delta S unvi

Math.
The correct answers are: 1)B 2)D 3)A 4)C 5)A Its 2017!

art
thanks

art
Ancient native Americans chose willow strips to make baskets because there were easy to bend and to. A. to find B. waterproof C. multi colored D. rare

art
ok I will thanks

art
Ancient native Americans chose willow strips to make baskets because there were easy to bend and to. A. easy to find B. rare and valuable C. multi colored D. waterproof I chose A is this correct

art
ok thanks

art
A sculptor creates a bust of a famous politician out of marble and places it in the outdoor courtyard of the capitol building. Why did he chose marble?

math
Jishka is stupid and it sucks I would have gotten 100% but I listen to the website and got 60% instead hate jishka.

Math
we have 2 coins: coin 1 comes up with the probability of tails of 2/3 while coin 2 comes up with the probability of tails of 1/3 you don't know which is which so you pick one up at random and flip it . If its tails, you guess that the coin you picked up is coin 1 else you ...

calculus
If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without commas. For example, if the answer is 2,000 write 2000.

physics
Please someone should help me with this. An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of the string is ?

physics
Please how do i solve this? A body of mass 36kg falls through a viscous liquid which offers a drag of 260N on the body. The upthrust on the body at terminal velocity is?

Physics (is my work correct????)
A tension force of 2.50 N acts horizontally on a 2.00 kg block. The block accelerates at 0.750 m/s2. What is the force of kinetic friction? 2 x .75, = 1.5N (2.5 - 1.5) = 1N?????

math
yes

math
I meant wendays homework

math
on Tuesday, elena completed 20 of her math homework in 36 minutes. At that same rate, how long will it take her to complete 35 items for wendy's math home work

Physics
A 0.047 kg golf ball is driven from the tee with an initial speed of 54 m/s and rises to a height of 23.2 m. What is its speed when it is 6.0 m below its highest point?

Pre-Cal
A wire 360 inches long is cut into two pieces. One piece is formed into a square and the other into a circle. If the two figures have the same area, what are the lengths of the two pieces of wire (to the nearest tenth of an inch)?

chemistry
what is the volume, in liter of 2.54 mol methane (ch4) gas? I've been stuck on this problem for hours, someone please help!

Algebra
Janice tosses a softball directly upwards with an initial velocity of 100 feet per second. Use the formula h = vt - 16t^2 to answer each question. a. When will the ball reach a height of 84 feet? b. When will the ball hit the ground?

math
Decide whether the each equation has one solution, no solutions,or infinitely many solutions. 1. 2(x-3)= 2X A.One solution B.No solutions C.Infinitely many solutions 2. 3(y-3)= 2y-9+y A.One solution B.No solutions C.Infinitely many solutions 3. 10x-2-6x = 3x-2+x A.One solution...

Stupid Complicated English Grammar
if this could be answered it would help man students. plz answer after you have submitted the activity

Math
Problem 6: Let a1,a2,.........a10 be an arithmetic sequence. If a1+a3+a5+a7+a9=17 and a2+a4+a6+a8+a10=15, then find a1.

Algebra
Let a1,a2,a3..... be an increasing arithmetic sequence of integers. If a4a5=13 what is a3a6?

Math
9,578

Algebra
Solve for x>0 in the following arithmetic sequence 1^2,x^2,3^2.....

Algebra
The fifth term of an arithmetic sequence is 11. If the difference between two consecutive terms is 1, what is the product of the first two terms?

Algebra
No it is equal

Algebra
Find all values of t such that [t] =2t+3. If you find more than one value, then list the values you find in increasing order, separated by commas. The brackets represent the floor sign function.

English

Math
Find the positive difference between two solutions to the equation ∛(4-(x^2/3)) = -2

Math
What is the sum of all values of x which |x-3|+|3-x|-1=?

AB Calculus
For part 2 i got .17955, would this be considered correct?

AB Calculus
I figured out that part "A" is -3/8, but i can't figure out part 2, a or b. please explain and help. thanks. Sand is falling from a rectangular box container whose base measures 40 inches by 20 inches at a constant rate of 300 cubic inches per minute. a) how is ...

CHem
Iodine forms three compounds with chlorine. Choose the correct molecular shapes. ICl3 ICl5 ICl

Math
Our teacher hasn't taught us log, so how would I sove this problem?

Math
Suppose 81^x=64. What is 27^(x+1)?

Finite Math
a,.4 b. .4

science
Two train cars are connected to a locomotive as shown. Wach train has a force of kinetic friction equal to 50,000N. The locomotive pulls the two freight cars at a constant speed of 4.0m/s. Find the force of tension at each of the coupling points A & B.

math
?????????????????

math
Sorry i ment what is the total Weight.

math
Sam grew three pumpkins for the pumpkin growing contest.The pumpkins weighed 24 1/8 lb,18 1/2 lb, and 32 5/16 lb. Find the total cost of the pumpkins. I don't get it????

Algebra - Can you PLEASE check - I"m stuck!
Bob is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days: F(N)=10(1.02)^n 1. Starting from 0 days, plug x-values into our function to find out how many days it takes for the plant to...

Algebra - can you PLEASE double check my work?
I'm confused what you mean by 3? I was thinking Irrational because you can not write as a ratio.??

Algebra - can you PLEASE double check my work?
Part A: Use the properties of exponents to explain why is called the fifth root of 18. 1. What property refers to roots and fractional powers? My Answer: Rule of exponents 2. How does it apply to 18^1/5? If you multiply 18^1/5 by itself 5 times, you get 18. Part B: The length ...

Physics
A brick of mass 2.3 kg is lifted to a height of 1.9 m. How much gravitational potential energy is added to the brick? Acceleration due to gravity is g = 9.8 m/s2.

chemistry
45.1

Physics
A pendulum consists of a 2.1 kg stone swinging on a 3.6 m string of negligible mass. The stone has a speed of 7.9 m/s when it passes its lowest point. (a) What is the speed when the string is at 60° to the vertical? (b) What is the greatest angle with the vertical that the...

Math
IM MISSED TWO!!!! AND IM IN CONNEXUS

Physics
A block of mass m = 800 g is released from rest and slides down a frictionless track of height h = 57.0 cm. At the bottom of the track the block slides freely along a horizontal table until it hits a spring attached to a heavy, immovable wall. The spring compressed by 2.49 cm ...

Chemistry/mine engineering
why are you solving for temp final??? we are looking for mass of the rod...?

math
Jack used the digits 4,5,6,7 to make the largest and smallest numbers possible. Then he subtracted the 2 numbers and came up with 2,997. What did Jack do wrong?

math
The answer is B, guys you answered everything but (B) and the other answers are wrong. Take it from me I got the question wrong when I put the answer (c) so it showed me what was right. Yep, well see yuh

Chemistry
Calculate the molarity of 25.00ml H2SO4 solution if 32.48ml of 0.1068M NaOH is required to titrate? Balanced equation is H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2 H2O (l)

chemistry
write the balanced molecular and net iconic equations for the reaction between aluminium metal and silver nitrate. Identify the oxidation and reduction half-reaction

calculus
find the x-coordinate of all points on the curve y=12Xcos(5X)-(30*sqrt3*X^2) + 16, pi/5<X<2pi/5 where the tangent line passes through the point (0,16), (not on the curve) I have absolutely no idea how to solve this one

chemistry
what volume of 0.150M Li2Sr solution is required to completely react with 130ml of 0.150M Co(NO3)2

Chemistry
It is SrCl2 not SrLi2

Chemistry
If 4.7M SrLi2 solution is diluted to 45L, what is the molarity of the diluted solution?

AP Calculus
no clue

Calc
this problem has been a challenge for me.

Calc
Hi Reiny. According to my webwork. The answer it not correct. Any additional help?

Calc

math
Data were recorded for the demand and revenue of a given product. Find the linear regression line which represents the revenue function. Find the quadratic regression curve which represents the revenue function. Data Demand x Revenue y 1 0 100 2 4 139.2 3 8 176.8 4 12 212.8 5 ...

physics
A heavier mass m1 and a lighter mass m2 are 17.5 cm apart and experience a gravitational force of attraction that is 9.80 10-9 N in magnitude. The two masses have a combined value of 5.00 kg. Determine the value of each individual mass

chemistry
You have prepared 20.00 mL of a buffer, using 4.00 mL 0.010 M HA (weak acid) and 3.00 mL 0.010 M NaA (provides A-, the conjugate base of HA). pKa for HA is 6.25. How many moles of HA will be present in the mixture after addition of 0.20 mL 0.010 M NaOH?

Chemistry
Wow, THANKS!

Chem
when 21.70 ml of 0.5000 m h2so4 is added to 21.70 mL of 1.000 M KOH in a coffee cup calorimeter at 23.50 degrees c, the temperature rises to 30.17 degree c. calculate delta H of this reaction (Assume that the total volume is the sum of the individual volumes and that density ...

Chemistry

Physics
Add the two component vectors from Sample Problem 1 algebraically to erify that they equal the given vector The two component vectors are: 8.6m(North) and 12m (west) The given vector is 15m(West 35 degrees North) Because when i add 8.6 and 12 it doesnt equal 15m. It should ...

Math
Yunogasai is wrong!!! Its C B C C C 100%

math
Theater prices: Adult- \$6.00 Student- \$3.00 4 adult tickets and 6 student tickets on a night that offers the special deal that a free ticket is given with each ticket purchased

Math
Determine whether the graph of x=y^2-1 is symmetric with respect to the x-axis, the y-axis, the origin, or has no symmetry.

Physics
A stone is thrown vertically upward at a speed of 27.00 m/s at time t=0. A second stone is thrown upward with the same speed 2.060 seconds later. At what time are the two stones at the same height?

english
Apop

Math
9 digits, 10 choices for each digit (0-9) 9^10

Pre-Calculus
Find all solutions of the equation and express them in the form a+bi 2x^2+3=2x

physics
2229.5

math
Damon can you help me. My name is Jake so find that one obviously. Much appreciated. I don't understand those problems.

Ms. Sue ... can you please help me with my questions. My name is Jake. Much appreciated.

math
Can someone help me with my questions please. HELP!

Math...Help.Thx
I got something different but I'll figure out how you got that. Thankyou.

Math...Help.Thx

Math...Help.Thx
20. READING: The number of pages P a student can read varies directly with the amount of time T in minutes spent reading. The student can read 90 pages in 60 minutes. Write an equation that relates P and T. PREDICT the number of pages the student can read if 90 minutes is ...

CHEM
77

MATH
make up a set of 5 numbers having the following landmarks: median: 9, range: 7, minimum:5

economics
what circular flow the the following fall into 1)You receive \$15,000 in profits from your half-owner of a Krispy Kreme franchise. 2)The Georgia Bulldogs sells season football tickets for \$50.00. 3)What market determines the price per acre of farmland? 4)What market determines ...

Science
idk what do you think?

Economics
can someone teach me how to calculate per unit opportunity cost

history #5
dbc

Economics
Of your implicit and explicit costs of attending college, which is more, why?

Calculus
A water tank in the shape of a right circular cylinder has a volume that is increasing at the rate of 300pi cubic centimeters per hour. If the height is decreasing at the rate of 15 centimeters per hour, find the rate at which the radius is changing when the radius is 20 ...

Calculus
Water is leaking from the bottom of a tank in the shape of an inverted cone having an altitude of 12 feet and a radius of 2 feet. If the water is leaking at the rate of 0.25 cubic feet per minute, how fast is the water level decreasing when the water is 4 feet deep?

physics
Which one of these statements regarding standing waves on a string is FALSE Select one: a. The frequency of the first harmonic depends on the tension in the string b. The frequency of the first harmonic depends on the speed of the wave c. The frequency does not depend on the ...

physics
Which one of the following statements about standing waves on a string is FALSE? Select one: a. All other frequencies are integer multiples of the first harmonic b. The first harmonic is the lowest frequency standing wave that can be formed. c. The first harmonic has the ...

physics
The Bernouilli equation is a statement of which physical principle? Select one: a. COnservation of Momentum b. Newton's Second Law c. Pascal's Principle d. Conservation of Energy