Posts by anna

Total # Posts: 2,721

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?

Algebra Square Roots
For which value of x should the following expression be further simplified? \sqrt{ 39x} a x = 2 b x = 6 c x = 10 d x = 11

math
n apples are to be packed into m boxes so that each box contains the same number of apples. How many apples will be packed into each box in terms of m and n?

Math
Maria wants to make fruit punch for a birthday party. She needs to mix three parts ginger ale, two parts cranberry juice, and one part orange juice. Ginger ale costs $2.00 per gallon, cranberry juice costs $4.00 per gallon, and orange juice costs $5.00 per gallon. Maria only ...

Matha
At what rate of compound interest will a sum of money become 2.25of itself in 2 years?

Math
If 4 balls out of 6 reach the boundary in a cricket match then the average number of balls reaching the boundary in selected 10 overs of the match?

Grade 8 math
the hypotenuse of a right triangle is d. Find the sums of squares of the distances from the point of intersections of medians to the three vertices of the triangle. What? What does even mean? Why are they talking abou finding sums of squares if it's a triangle? I don't...

HELP ANYONE
Thank you for all the help..!

HELP ANYONE
Oh sorry :( Didn't mean any of that.. I needed help with the problem.. its nothing about calling police.. very sorry ma'am

HELP ANYONE
Badger Bus Line; c=75+1.25x For what trip lengths can the school use Badger Bus if they have at most $300 to spend on transportation?

Math
Translate this phrase into an algebraic expression. 49 decreased by twice Vanessa's savings Use the variable v to represent Vanessa's savings.

math, algebra
Members at a yoga school pay $7 per class plus a one-time $120 membership fee. Non-members pay $11 per class. How many classes would a member have to take to save money compared to taking classes as a non-member? I'm struggling with this problem a bit, and so are my ...

English
I agree. For me, writing is the best thing in the world. It's a great way to express yourself, but some people have trouble with it. You aren't alone, but nobody is going to do homework for you. Advice: Think about what the question is asking you, the title is: The ...

Math7
Can somebody answers please temp started at 12 degree

Math7
On December 30 2013 the temp started at 13 degree f .for next 5 hours the temp dropped 2 and1/2 degree per hours then the temp increased 4 degree what is the temp after these changes

Mathematics
Francine used her computer for 2 1/8 hours Tuesday evening and for 2 1/4 hours on Wednesday evening. Which is the best estimate of the time Francine used her computer on Tuesday and Wednesday evenings? A) about 1/4 hour B) about 3hours C) about 4 hours D) about 5 hours

Math
Think about the problem this way: J = Julia T = Tom J = 5 < T J + T = 126 126 - 5 = 121 Obviously, Tom would not be 121 years old. Think of a number that would equal 126 if added with 5, and would be greater than 5 (Like I said before, make sure your answer is reasonable!).

Social Studies MS. SUE
Ms. Sue, thank you so much!

Social Studies MS. SUE
The Middle Passage was the stage of the triangular trade in which millions of Africans were shipped to the New World as part of the Atlantic slave trade?

Social Studies MS. SUE
The Middle Passage was the brutal part of the trade. Explain why.

math
sam was exercising on his treadmill. He walked 3/8 of a mile and than ran 2/5 of a mile within 30 minutes. How many miles has sam done on his treadmill?

Physics
A 250kg rollercoaster cart loaded with people has an initial velocity of 3m/s. Find the velocity of the cart at part A (10m high), B (35m), and C (44m) Assume that friction is negligible.

Physics
A 52 kg woman is standing in a 26 kg cart that is moving a velocity of 1.2 m/s S. The woman staying rest then moves at a velocity of 1m/s (E) what is the final velocity of the cart? I just ugh, don't even know how to even start answering the question as this deals with ...

physics
A 2.0 g bullet is shot with an initial velocity of 200.0 m/s into a board (I = 12.0 kg m2). The board is held still by a frictionless pivot a third away from its bottom end, as shown below. Assume that you can treat the board as a uniform rod. 1. What is the initial angular ...

Math
Liam earns 5% commission on all computer he sells this week he earned $500in commission .how much money did he sells in computers

Check spanish answers
I just took the test! anonomys is right! 100% accurate! Thank you!

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