Posts by anna

Total # Posts: 2,755

math
Haven't gotten an answer as of yet, thanks.

algebra
The number of boxes on a truck varies directly with the time since the workday began. At 3 hours after the workday began, there are 207 boxes on the truck. How many boxes should we expect there to be on the truck 7 1/3 hours after the workday began?

math
Still don't understand how you got 82.

math
Julia invests $80,000 in an account which pays 5.97% interest compounded quarterly. After 20 years and 6 months, how much money will she have in the account?

Chemistry
How many stereoisomers does [Pt Br4 Cl2]2- have? I think it has 2 geo., but how many optical?

Math
How do we find power series when given a function?

physics
The spring of a spring gun is compressed a distance d of 3.2 cm from its relaxed state, and a ball of mass m = 12g is put in the barrel. With what speed will the ball leave the barrel once the gun is fired? The spring constant is 7.5 N/cm. Assume no friction and a horizontal ...

Physics
A - A boy runs 12.7 blocks North, 7.5 blocks Northeast, and 14.4 blocks West. Determine the length of the displacement vector that goes from the starting point to his ?nal position. B - Determine the direction of the displacement vector. Use counterclockwise as the positive ...

Physics
A quarterback takes the ball from the line of scrimmage, runs backward for 19.0 yards, then runs sideways parallel to the line of scrimmage for 12.0 yards. At this point, he throws a 43.0-yard forward pass straight down the ?eld. What is the magnitude of the football’s ...

Physics
A -A child rides a toboggan down a hill that descends at anangle of21.8? to thehorizontal. The hill is 42.6 m long. What is the horizontal component of the child’s displacement? Answer in units of m. B - What is the vertical component of the child’s displacement? ...

English
#1 means #2 per the use of "the." It does not mean #3 since "any" is a general statement.

Physics
A hummingbird ?ies 2.7 m along a straight path at a height of 5.3 m above the ground. Upon spotting a ?ower below, the hummingbird drops directly downward 1.8 m to hover in front of the ?ower. a) What is the magnitude of the hummingbird’s total displacement? Answer in ...

English
2 is not generic since it's talking about a specific apple

Physics
It's still incorrect.

Physics
A hummingbird ?ies 2.7 m along a straight path at a height of 5.3 m above the ground. Upon spotting a ?ower below, the hummingbird drops directly downward 1.8 m to hover in front of the ?ower. a) What is the magnitude of the hummingbird’s total displacement? Answer in ...

Math
65-24 = 41

Physics
A - A hummingbird ?ies 2.7 m along a straight path at a height of 5.3 m above the ground. Upon spotting a ?ower below, the hummingbird drops directly downward 1.8 m to hover in front of the ?ower. a) What is the magnitude of the hummingbird’s total displacement? Answer in...

Physics
A - A hummingbird ?ies 2.7 m along a straight path at a height of 5.3 m above the ground. Upon spotting a ?ower below, the hummingbird drops directly downward 1.8 m to hover in front of the ?ower. a) What is the magnitude of the hummingbird’s total displacement? Answer in...

Science
Conduction - energy is transferred through direct contact Convection - energy is transferred by the mass motions of molecules

Physics
A - A golfer takes two putts to sink his ball in the hole once he is on the green. The ?rst putt displaces the ball 8.10 m east, and the second putt displaces it 1.99 m south. What displacement would put the ball in the hole in one putt? Answer in units of m. -I got the answer...

physics
an airplane flying north is observed from the ground. it's velocity is 225 m/s north. the pilot who is flying the plane measures a velocity of 250m/s north. what is the velocity of the wind that affects the plane

geometry
line BD bisects angle ABC=8x. angle ABD=2x+22. find angle DBC

Physics
Yes? No?

Physics
So it would be .... 0=1274.49+2a(457) O=1274.49+914a?

Physics
A car is traveling at 80 miles per hour down a paved, asphalt road in good condition. The driver steps on the brake, decelerating at a constant rate (expressed in m/s^2), to avoid hitting a horse in the road 1500 feet away. If the driver does not wish to experience too rapid a...

Engineering Mechanic
a child throws a tennis ball vertically upwards at 7.7 m/s from ground level. assuming that no resistance force act on the ball, so that it move only under the influence gravity (9.81 m/s-²), what is the maximum heightin the tennis ball reaches

Math
Given A is (-2,3),Find point B,given their distance is 7 units

Python Programming
Does anyone have suggestions about books for a begineer to self study/get some basic to advanced knowledge on Python Programming? Hope someone who's familiar with this subject area,will help me. Thanks!

Data Science
I've been accepted into a General Physics degree programme in my country.If I'm willing to start my career as a data scientist,what subjects should I study at the university? Would the knowledge of programming languages will be an extra qualification or is that ...

Math-2 column proofs
Given m<1= 90 degrees,prove m<2 = 90 degrees.

Math-2 column proofs
Yes they do add up to a straight line with a bisector making each angle equal to 90 degrees

Math-2 column proofs
If <3 is congruent to <4,prove that <3 and <4 are right angles.

Math
Q1. Given that Angle OUR is congruent to Angle PUN and Angle OUR =2x+5,Angle RUN=4x-2 and Angle PUT= x+32,find the measure of Angle PUN Q2. Given that Angle TUN and Angle PUN are complementary angles and Abgle OUR = 4<RUP,what is the measure of Angle OUR.

Math
Q1. Given that Angle OUR is congruent to Angle PUN and Angle OUR =2x+5,Angle RUN=4x-2 and Angle PUT= x+32,find the measure of Angle PUN Q2. Given that Angle TUN and Angle PUN are complementary angles and Abgle OUR = 4<RUP,what is the measure of Angle OUR.

Math
Given that Angle OUR is congruent to Angle PUN and Angle OUR =2x+5,Angle RUN=4x-2 and Angle PUT= x+32,find the measure of Angle PUN

Math
Given that Angle TUN and Angle PUN are complementary angles and Abgle OUR = 4<RUP,what is the measure of Angle OUR. I swear this time this is all the information,I'm not skipping any info.

Math
Sorry about that.Thanks for the help. No I don't think all the answers are 7 but thanks though and sorry again about that

Math
SEN is a 90 degree angle

Math
EU bisects Angle SEN

Math
Given that ray EU is an angle bisector,find x given that <SEU=8x-11.

Math
Yes I am drawing them myself.The drawings help with the question.

Math
Thanks Damon!

Math
Given that Line segment CP is an angle bisector of <DPB and Line segment AB is perpendicular to line segment DP,find x given that <CPB=8x-11.

Math
There is no info missing

Math
Thanks John!

Math
Given that <APD=4x+123,<DPC=-5x-3 and <CPB=6x+105,find the measure of <DPC.

Math
OB is a ray

Math
Given ray OC is perpendicular to ray OA and <DOA=135 degrees,what would be the measure of <DOC given that <COB=3x-7 and <BOA= -2x+4.

Math
Given ray OC is perpendicular to ray OA and <DOA=135 degrees,what would be the measure of <DOC given that <COB=3x-7 and <BOA= -2x+4.

Math
I don't quite understand

Math
Given ray OC is perpendicular to ray OA and <DOA=135 degrees,what would be the measure of <DOC given that <COB=3x-7 and <BOA= -2x+4.

Math
No I'm sorry,would it be 15?

Math
Would x=13?

Math
if m<DOA=83 degrees , m<DOC=2x+4 , m<BOA=15 degrees.what would x need to be to make ray oc an angle bisector of <DOB

Math
Draw: 1)Line AB parallel to Ray CD perpendicular to line EF 2)Line GH perpendicular to line IJ,Line GH perpendicular to Line KL and Line IJ perpendicular to Line KL 3)Line Segment BC coplanar to Line TS

Math
Draw: 1)Line AB parallel to Ray CD perpendicular to line EF 2)Line GH perpendicular to line IJ,Line GH perpendicular to Line KL and Line IJ perpendicular to Line KL 3)Line Segment BC coplanar to Line TS

Math
I DONT KNOW I JUST THOUGHT THE ANSWER WAS ON HERE , SMHHH ; BUT SHOUTOUT TO KELSY FOR BEING MY FRIEND & DANIELLS BREGILI EATS BUTT

Food
I need to unscramble these 30 letters to make 5 words in a recipe. EAABCGBNREIDNASGSE AUNDALTIKELS

Chemistry
Actually the question is about identifying each other with O2

Chemistry
Can we use O2 to identify NO and SO2 from each other? Is it because NO+O2-->NO2; NO2 - brownish gas and 2SO2+O2--2SO3;SO3-blue in colour? Or what is the reason?

Chemistry
Thank you! And my brother uses the screen name Thomas and we access the site through the same device.

Physics
Thank you!

Physics
Why doesn't a magnetic force ALWAYS act on a particle which moves in a magnetic field?

Chemistry
A H atom is released from HIn so it is acidic?

Chemistry
Couldn't change the name.My sister was also using the PC to access this site

Chemistry
The indicator HIn has a dissociation constant of 1*10^-4 M. HIn<===> H30^+ + In^- Yellow Red When the pH value of the solution is 7, 1)the indicator shows the colour red 2)at this time most of the indicator has been dissociated Which statements are true? 1)I took this as...

statistics
2. In a survey of a large company, 30 percent of all employees are said that they are dissatisfied with their working conditions. Find the probabilities that among 12 randomly selected employee who were surveyed; a) None were dissatisfied with working conditions ( 4 marks) b) ...

Science
Strange but true. we can say that the earth is round but not exactly it is a spheroid i.e a sphere that is squashed at the poles and swollen at the equator I hope u like my answer and if it was an information to you please reply. Best regards:Anna

statistics
Select three different five card combinations or five-card hands from your favorite card game that utilizes a standard 52-card deck containing four suits (clubs, hearts, diamonds, and spades), with each suit containing 13 cards with numbers 2-10 and face cards ace, king, queen...

probability math
you have a set of 10 cards numbered 1 to 10. You choose a card at random. event A is choosing a number less than 4. Event B is choosing an even number. Calculate the probability of A.

World History
Imagine you are a reporter conducting a unique interview. Moses, Jesus, and Muhammad are sitting around a table having lunch with you. You are asking them questions about their respective faiths to inform your readers about the world’s three major monotheistic religions. ...

chemistry
Calculate the molar solubility of BaSO4 in a solution in which [H3O+] is 0.50 M. Ksp(BaSO4) = 1.1×10-10, Ka(HSO4-)=1.02×10-2

Math
square root 2:1

french 1
A wide variety of activities are enjoyed by French young people but in their schools, there are generally not programs for competitive sports. True False

french
It is customary to greet someone on the street with "allô". False True

internet/math
this website video isnot working please help I have to finish my homework. it was working in school>

Math
There were d passengers in the train. 15% of all of them went in the first car, 20% went in the second car. How many passengers were in the rest of the train? D - 0.15d + (0.15d*0.2) + ? 0.15 + 0.03 = 0.18 I don't know what to do next?

doan
what is the simplified form of x-1/3x-3 ?

Probability
After an exam, a teacher starts checking student attempts. Based on the marks he gives, he also awards a letter grade from any of the 5 letter grades; A, B, C, D, and F. How many papers on average should he expect to check to see all 5 grades awarded? At the end, generalize, ...

6th grade AC math. Rates? I think
1 lap around a track = 1/5 of a mile. A horse horse ran a total of 3 laps in 1 minute and 30 seconds. What's the horses average speed in miles per Minute? I've tried so hard all I can come up with is 1/5 of a mile per each 1/2 minute (30 seconds) is that right pleas help

statistics
41% of the student body at Urban High are "cool". Mr. Uppity has devised a test for determining if a student is "cool" or not. What is the average number of students Mr. Uppity needs to test in order to find one who is "cool"? a. 3 b. 3.57 c. 2.43...

math
Translate one less than the quotient of a number and -5

math
One store sells milk for $3.00 per gallon. A second store sells milk for $0.80 per quart.If you need two gallons, which store should you buy from?

Math
Jody has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. A. What is the Área of the piece of fabric? B. Jody decides to share the piece of fabric equally with her friend. What is the área of the piece of fabric each person gets? PLEASE HELP MEEE!!

Pre-algebra
Hey I'm having a lot of trouble with this question. An open box is to be made from a 20 inch by 40 inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. A) What size should the squares be in order to obtain a box with ...

Biomechanics
A runner does 1.5 laps around a 400-­?m track in 77s. What is his average velocity? isn't the formulas for ave velocity is displacement/time. When I plug number is different from the Professor Answers. My professor answer is 2.6 m/s. Please help me to understand he ...

Physics
Which of the following properties can be used to measure temperature?

Algebra
When mushrooms are dried, they lose 80 percent of their mass. What weight of mushrooms must be picked to get 1 kg of dry mushrooms?

English
The textual evidence part pls.

English
Complete a Soapstone chart of the Crisis December 23, 1776 by Thomas paine with textual evidence.

Social studies
What are the answers to social studies week 15?

Math
Thanks

Math
The simple interest on a sum of money is 1/9 of the sum.The number of years is numerically equal to the rate percent per annum. The rate percent per annum is?

Chemistry
What mass of salt(NaCl)should you add to 1.20 L of water in an ice cream maker to make a solution that freezes at -10.4?C?

Chemistry
What mass of salt(NaCl)should you add to 1.20 L of water in an ice cream maker to make a solution that freezes at -10.4?C?

Math
In a distribution, Q.D= 15 and co-efficient of Q.D=0.3 75% of the observation are less than? a)67 b)65 c)78 d)75

9th grade physical science
the density of copper is 8.92g/cm^3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?

math
what is the sum of two missing digits in this addition: -3x + 17 =(-x8)

Math
Thanks alot

Math
The ratio of the ages of husband and wife is 4:3. After 4 years the ratio will 9:7 . At the time of marriage the ratio was 5:3 , then how many years ago they got married?

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