# Posts by bob

Total # Posts: 3,255

**Math**

W2

**math**

jamie is joining a music club as part of her 4-cd introductory package she can choose from 12 rock selection, 10 alternative selection 7 country selections and 5 classical selection if jamie chooses on selection from each category how many ways can she choose her introductory ...

**Physics**

1.36

**math**

a=70

**math**

2a-140

**math**

140

**Science**

15 C

**SS 6th grade**

Does anyone have the answers to the test

**math**

A study of two types of weed killers was done on two identical weed plots. One weed killer killed 15% more weeds than the other. This difference was significant at the 0.05 level. What does this mean? A. The improvement was due to the fact that there were more weeds in one ...

**math**

If you have a twelve gallon bucket, a seven gallon bucket, and a six gallon bucket, how can you get exactly nine gallons into one bucket

**algebra**

the isotope has a very short life of 13 half-life days. estimate the percentage of the original amount of the isotope released by the explosion that remains 3 days after the explosion?

**statistics**

The distribution of B.A. degrees conferred by a local college is listed below, by major. Major Frequency English 2073 Mathematics 2164 Chemistry 318 Physics 856 Liberal Arts 1358 Business 1676 Engineering 868 9313 What is the probability that a randomly selected degree is not ...

**Art**

Ice cream lover <3 is right 100

**Art**

Ice cream lover <3 is right 100

**Art**

Ice cream lover <3 is right 100

**biology**

Ms. Sue, woyls it be B?

**SS Help!!**

Latfia is right

**geometry**

have 2 || lines C and d. lines intersect lines are a and b. On a, has 2 alternate interior <s 95 and x; 2 al. exterior <s 95 and 85 degrees. On b, consecutive interior <s 72 and y. What is x and y. Please explain reasoning in paragraph proof.

**Integration**

Integrate: ∫ x^2(x^2+1)sqrt(4-2x^3-x^4) dx

**physics**

A cat usually lands on its feet regardless of the position from which it is dropped. A slow-motion film of a cat falling shows that the upper half of its body twists in one direction while the lower half twists in the opposite direction. (See figure below.) Why does this type ...

**Calculus**

List x1, x2, x3, x4 where xi is the right endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 3 and x = 5. 3, 3.5, 4, 4.5 3, 3.2, 4.6, 5 3.5, 4, 4.5, 5 3.25, 3.75, 4.25, 4.75 my answer was a because i kept getting numbers like 3, ...

**math**

1/4 of henry sticker is equal to 2/3 of daisy. difference in number of sticker each of them has is 135. how many stickers do they have in all?

**math**

Sam and Jill had 576 stamps in all. Sam gave 1/7 of his stamps to Jill. Then Jill gave 1/4 of the total number of stamps she now had to Sam. In the end, both of them had the same number of stamps. What was the difference in the number of stamps they each had at first?

**math**

Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?

**Algebra 2**

Use trigonometric identities to solve each equation for the given domain. sin 2θ = -cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help

**Math / Algebra 2**

Use trigonometric identities to solve each equation for the given domain. sin 2θ = -cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help.

**algebra**

The angle of elevation from the tip of the shadow to the top of the tree is 36°. Find the distance from the top of the tree to the tip of the shadow. Round the answer to the nearest tenth.

**math**

it doe snot say

**math**

An office supply company is shipping a case of wooden pencils to a store. there are 64 boxes of pencils in the case. If each of pencils weighs 2.5 ounces, what is the weight, in pounds, of the case of wooden pencils?

**math**

Please show your work. Tutors will not do your homework for you. Please show your work for any question that you are posting.

**chemistry**

dissolving 4.022 g of a salt in 100 mL of water changes temperature by -1.2^oC: what is the heat absorbed? The specific heat of water is 4.184 J/(g*C)

**social studies**

erfvb yu,kli...cwd

**Science**

thx reed :)

**Science**

Ok I will go back through my lesson and check #3 thx :)

**Science**

1. Which type of weather technology often carries cameras that can make images of Earth's surface, clouds, and snow cover? A. weather balloon B. weather satellite**** C. computer D. automated weather station 2. Why are weather forecasts more reliable now compared to ...

**chemistry**

0.0034 Mol of CaCl2

**math**

How many square yards of carpeting are needed to cover the floor of a rectangular room that is 21 ft. long and 12 ft. wide?

**Accounting**

E13 Selected account balances of the Lakeside Grocery Store for the year ended December 31, 20xx, follow. Beginning merchandise inventory was $ 26,000, and ending merchandise inventory is $ 22,000. Prepare closing entries, assuming that the owner of Lakeside Grocery, John ...

**Statistics**

Okay, but what if the maximum that each box can hold is 2?

**Statistics**

How many different ways can you put 3 distinguishable things in 10 boxes?

**SOCIAL STDIES HELP! 8th**

Connetions

**Chemistry**

What is the pH of a solution made by mixing equal vlumes of .10 M HC2H3O2, .1 M NaOH, and .05 M HCl?

**physics**

incorrect

**physics**

A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of −4.9 µC. How many electrons are transferred from the wool shirt to the plastic rod? The elemental charge is 1.6 × 10−19 C.

**Art**

SORRY NUMBER TWO IS C

**Art**

THE ANSWER ARE NUMBER ONE IS D AND NUMBER TWO IS B

**physics**

72

**Chemistry**

A .2688-g sample of a monoprotic acid neutralizes 16.4 mL of .08133 M kOH solution, calculate the molar mass of the solution? First of all how can I calculate the molar mass?

**math**

A rectangular tank measures 30cm by 15 cm by 20 cm. It contains water to a depth of 15 cm. How many metal cubes of edge 5 cm need to be placed in the water to raise the water level to the brim of the tank?

**math**

joking its good

**math**

check good it bad hahahaha

**Art Help!!! Thank you**

these are all right 100% GARANTEE

**math**

15 isss wronggggggg

**math**

none

**physics**

lol idk dis bull

**Art**

lol

**Science**

What is a conducter

**Physics 1**

192.70

**Science**

What are insulaters

**Social Studies**

OMG all right!!! thx so mush I really needed this for my grade.

**math**

I= (400)(0.09)(2) I= 72

**chemistry**

An ice cube weighing 22.7 g at a temperature of 0.0°C is added to 125 mL of water at 27.1°C in an insulated container. What will be the final temperature after the ice has melted?

**Geometery**

From Pyth thereom,AB =root (35^2+60^2)= 5 root(193) Height CN=AC*CB/ AB= 60*35/ 5 root(193)= 420/root(193) Now find CT Tan40 = CT/ DC But DC= 60 root 2 ( it is hyp of rt triangle ADC) CT= DC tan 40= 60 root 2 * 0.84 Angle of elevation of TN is Arc Tan(CT/CN)= Arc tan (60 root ...

**Geometery**

A, B, C and D are on horizontal level ground and CT is vertical pole. B is 35 m due east of C, A is 60 m South of C and D is 60 m West of A. Calculate the angle of elevation of T from N. I m really suck...plz help

**chemistry**

How many grams of water are required to completely hydrolyze 0.54 grams of lidocaine? What type of be equation should be used?

**LA**

anon is right for all except 6. 6 is C

**ECONOMICS**

What do YOU think?

**math**

Ahaha ghee

**Science!!!**

Is he right??

**Math**

in square meters plz

**Math**

ok so how do I solve the problem

**Math**

tiles cost 28 per square meter. How much will it cost to cover the countertop with new tile

**Math**

what is the area of the countertop in square meters

**Math**

A countertop is 16 feet long and 3 feet wide

**Chemistry**

Are you in Mr. Leingang's class?

**chemistry**

If the intial rate of the reaction produces 2 moles of water vapor, H2O, per second, what is the rate at which oxygen, O2, is consumed initially?

**Math**

its number 2 bro

**Calculus**

Graph the function f(x)=x+4/x Graph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find the number c that satisfies the conclusion of the Mean Value Theorem for f on [1,8] c= Notice that if you graph the tangent line to the point (c,f(...

**Math**

Hey Daisy. Plot your data points on desmos it'll help. Once plotted, this question is awfully easy.

**factorization**

Its 5 X 5 or 2 X 23 or 3X3X3

**Physics**

A stationary observer hears a sound with a frequency of 450 Hz from an approaching car. If the car emits the sound at a frequency of 360 Hz, what would be the speed of the car? (Speed of sound 340 m/s)

**language arts**

The speaker feels confident

**CHEM**

what is the mass percentage if you dissolve 0.659 mol of citric acid, C6H8O7, in 1.00 kg of water.

**Algebra**

Well your answer is wrong and you should use IXL it help alot.

**Algebra**

Tom curry apple jacks

**physicss**

A 0.145 kg baseball pitched at 44.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 3.00 ✕ 10-3 s, calculate the average force between the ball and bat during contact.

**math**

Even though the x-axis is on 0, she still needs to move the y-axis either to the left or right which will change it to being on the y axis.

**Physics**

A spring with an unstrained length of 0.075 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and a net charge of +7.0...

**physics**

SOMEONE HELP ME PLEASE

**physics**

A boy on a 2.2 kg skateboard initially at rest tosses a(n) 8.4 kg jug of water in the forward direction. If the jug has a speed of 3.0 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.60 m/s, find the boy’s mass. Answer in units of kg

**Language Arts**

6 is deep

**language arts**

B A B A

**English**

I have to pick a topic for an argumentative research paper, but when I think about different topics I realize that all of my ideas and support on the subjects are from other people's ideas that I have read or heard. So how do I come up with original ideas for a topic ...

**Science**

2500

**Physics**

boi

**Math**

Samuel and Jason 3/4 of the combined earnings from Wednesday to buy a gift. how much do they spend? Is there enough left over from Wednesday's earnings to buy a card that costs $3.25?

**Math**

10

**math**

repost find unknown number in the equation 9/10 - x = 1/5