# Posts by Lizzie

Total # Posts: 312

**Math**

Yea. x=1.209355. You have to find the roots.

**Algebra A (1510)**

When it has the latex do you mean the line is over the AB?

**Math**

Alicia's family decked to vist her grandmother, who lives 200 miles away. If they drive an average speed of 60 miles or hour, about how long will it take them to arrive at her grandmother's place.

**Maths/Algebra**

Just checking, the space between the s (money to begin with) and the fractions is multiplication? Thanks so much for your help.

**Maths/Algebra**

Samantha went shopping and spent half her money on a T-shirt and a third of her money on a scarf. She returned with $15. How much money did she have to begin with? My working out: s = money to begin with s - 1/2 s - 1/3 = 15

**algebra**

a spinner is split into three equal sections numbered one through three. What is the probability of spinning two threes in a row?

**HELP GRAMMAR**

if you say twenty days to respond and a few paragraphs later say the petition must be filed within 90 days is that correct or must both match

**Ms Sue and or Ms Wright**

He hit the ball well, but he ran toward third base." Could the sentence read He hit the ball well and ran toward third base." Why yes or no Thank you so much.

**ms sue - thanks**

is this correct on string of nouns you need and before the last one. On adjectives you do not? These sentences below are incorrect: incorrect Helen is bright, friendly, and confident. ( take out and) We have many dogs, cats, lions. (put in and)

**Ms Sue English**

I thought my grammar was excellent BUT now not so sure:( why is and necessary in some sentences and not others? Boys, girls, dogs, and cats .... vs Bright, friendly, compassionate ....

**English SAT**

Hi - i am doing english SAT practice and have a few grammar questions. 1. '60s flower child Book says an apostrophe goes before 60. Can you explain why? 2. Helen is a bright, friendly, confident girl. Book says this is correct Why is the word "and" not before ...

**math**

Michael has 18 decorative square tiles to make a design on a kitchen backsplash. He wants to arrange them in a rectangular shape with the least perimeter possible. How many tiles will be in each row?

**News for Ms. Sue**

Don't feel bad for yourself Ms. Sue! You are an awesome teacher. It's me, I should be really learning more into this subject. =)

**News for Ms. Sue**

1. A student raises her grade average from a 75 to a 90. What was the percent of increase in the student’s grade average? Round your answer to the nearest tenth of a percent, if necessary. A: 20% B: 16.7% C: 8.3% D: 15% Hi Ms. Sue, it was 20%. Thank you for your help, ...

**Math, are they all right?**

Oh, I see it now.

**Math, are they all right?**

Oops, A! I mean, D. Thank you.

**Math, are they all right?**

How can A be incorrect? That's just plain weird...

**Math, are they all right?**

1. A student raises her grade average from a 75 to a 90. What was the percent of increase in the student’s grade average? Round your answer to the nearest tenth of a percent, if necessary. A: 20% B: 16.7% C: 8.3% D: 15% *** 2. Beanbag chairs that normally sell for $36.50 ...

**Math**

Can someone help correct me? I totally appreciate it.

**Math**

1. Calculate the simple interest for each situation. Choose THREE that have a simple interest greater than $800.00. a. $2,000.00 at 6% for 7 years *** b. $4,500.00 at 3% for 6 years *** c. $1,400.00 at 6% for 9 years d. $5,000,00 at 7% for 3 years *** e. $800.00 at 15% for 5 ...

**ONE math question! Check please, thank you!**

Thank you Ms. Sue, you're the best! Apology for the "ONE", I didn't meant to do all capital letters. =)

**ONE math question! Check please, thank you!**

6) 108 is 36% of what number? Write and solve a proportion to solve the problem. Step 1. First, I will write the proportion to find the missing value, which I will replace it with n. 108/n = 36/100 Step 2. Next, I will write the cross products. So, 36n = 108 x 100 = 10,800 ...

**Math - Another question to check, sorry... =/**

Coolio, thnx! =)

**Math - Another question to check, sorry... =/**

7. 72 is what percent of 480? Write and solve an equation to solve the problem. Step 1. First, I will write out the equation. part = percent x whole Step 2. Now, fill in the parts… 72 = p x 480 Step 3. I will simply divide 72 by 480, which will be 0.15. Step 4. The ...

**Math - is this correct?**

Thnx! =)

**Math - is this correct?**

1. Estimate a 15% tip on a taxi ride that costs $23.25. I will first round the cost to the nearest dollar. $23.25 ≈ $23.00 I will now use mental math to find 10% of the cost. $23.00 x 0.1= 2.3 5% is 1/2 of 10%, so it would be $1.15. Finally, I will add the values to get ...

**Math**

10% requires you to move the decimal place over one place. So, it would be 2.32. Then, 5% is 1/2 of 10% so it would be 1.16. Add them together and its roughly around 3.50. Is this correct?

**Math**

10% requires you to move the decimal place over one place. So, it would be 2.32. Then, 5% is 1/2 of 10% so it would be 1.16. Add them together and its roughly around 3.50. Is this correct?

**Math**

Jai has 35 pieces of fruit. They are all apples and pears. He has 15 more apples than pears. How many pears does he have?

**Business statistics**

5. An Aspirin manufacturer fills bottles by weight rather than by count. Since each bottle should contain 100 tablets, the average weight per tablet should be 5 grains. Each of 100 tablets taken from a large lot is weighed, resulting in a sample average weight per tablet of 4....

**Business statistics**

4. A study of the ability of individuals to walk in a straight line (“Can We Really Walk Straight?”, Amer. J. of Physical Anthro., 1992:19-27) reported the accompanying data on cadence (strides per second) for a sample of 20 randomly selected individuals. 0.95 0.82 0...

**Business statistics**

3. Determine the t-critical value for a two-sided confidence interval in each of the following situations. a. Confidence level = 95%, df = 15 b. Confidence level = 99%, n = 5. c. Confidence level = 95%, n = 15 d. Significance level = 0.01, df = 37

**Business statistics**

2. Each of the following is a large-sample confidence interval for μ, the mean resonance frequency (HZ) for all tennis rackets of a certain type. (114.4, 115.6), (114.1, 115.9) a. What is the value of the sample mean resonance frequency? b. Both intervals were calculated ...

**Business statistics**

1. Suppose the estimate of a proportion of a normal population is to be within 0.05 using the 95% confidence level. How large a sample is required if: a. It is known from previous studies that p = 0.3? b. There is no prior knowledge of p?

**Algebra**

200

**Finance**

A speculator sells a stock short for $70 a share. The company pays a $2 annual cash dividend. After a year has passed, the seller covers the short position at $60. What is the percentage return on the position (excluding the impact of any interest expense and commissions)? ...

**math**

A checkerboard is 10 inches long on each side.What is the length of the diagonal from one corner to another? I know, I will need to use the equation... A2+B2=C2....but I don't know where to put the numbers. Thank you for the help!

**math**

About 25% of those called will find an excuse to avoid jury duty. If 11 people are called for jury duty, what is the probability that all 11 will be available to serve on the jury? (Round your answer to three decimal places.)

**Math**

If a car is driven at a speed of 78 mph and they travel for 3.5 hours , what is the distance traveled?

**Math**

What do you like better dogs cats or hamsters or bunnies show it on a bar graph

**Chemistry**

Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.763 M and [Sn2 ] = 0.0180 M Mg(s)+Sn^2+(aq)-->Mg^(2+)+Sn(s) I keep getting 2.57 but it says I'm wrong. Please help me!

**Chemistry**

Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.763 M and [Sn2 ] = 0.0180 M Mg(s)+Sn^2+(aq)-->Mg^(2+)+Sn(s) I keep getting 2.57 but it says I'm wrong. Please help me!

**Math**

30

**Math**

What is the common multiple (LCM) of 5, 6,and 2?

**Math**

An integer greater than -10 and less than -8

**MATH**

prove tan (theta/2)= (sin(theta))/(1+cos(theta))for theta in quadrant 1 by providing the calculation along with the reason. I appreciate the help.

**Math; Please help and thank you**

Please help me. Thank you.

**math**

6(1/3)=2

**Math; Check my answers please**

1. sin(tan^-1(4/3))=4/5 2. find the angle whose tangent equals 0. tan^-1(cos(pi/2))=0

**math**

You have a 20-foot ladder that you are using as you paint your house. You place the ladder so that it forms an angle of 30 at the point of contact between the ladder and the ground. How high will the top of the ladder be above the ground? Please explain. thank you

**Math**

how many solutions does the equation sin(5x)=1/2 have on the interval [0,2pi]?

**math**

Write a situation that can be represented by 3.25d

**math**

The official ratio of width to length for the U.S. flag is 10 to 19. If a flag is 38 inches wide, how long should it be?

**Math**

3x+13=5(x-1)

**artist**

who is juten is he a artist

**social studies**

Thanks! So helpful.

**math**

x>4

**math**

what is 5x + 2>3x + 10

**math**

4 and 8

**maths**

A particle of mass m rests on a rough inclined surface at an angle Pi/6 to the horizontal. When a force of magnitude P is applied parallel to the surface pointing up the slope, the particle is on the point of slipping down the slope, whereas when a force of magnitude 2P ...

**Math**

The answer is $166 because you subtract the total amount $463 - the savings of the 4 weeks $297 and you get $166 for the 8 weeks

**math**

ms. fuller has 2 and 2/6 pies left over from her party. write the number of pies left over as a fraction greater than 1.

**physics**

A car is coasting backwards downhill at a speed of 2.6 m/s when the driver gets the engine started. After 2.5 s, the car is moving uphill at 4.6 m/s. Assuming that the uphill is the positive direction, what is the car's average acceleration?

**Algebra**

A machine has a work output of 28ax^5 joules and a work input of 7a^2x^6 joules. What is the efficiency of the machine?

**Math**

A square painting is surrounded by a 3-cm-wide frame. If the total area of the painting plus the frame is 81 cm2, find the dimensions of the painting.

**Math**

I understand it now! Thank you so much!

**Math**

I tried doing this, but I still have no idea how to solve this problem =/

**Math**

In a financial deal, you are promised $800 the first day and each day after that you will receive 45% of the previous day's amount. When one day's amount drops below $1, you stop getting paid from that day on. What day is the first day you would receive no payment and ...

**algebra**

how do you graph c =40t+ 250

**Business Analysis**

Barney Casey borrowed $40,000 from his parents for 2 years. He paid them a total of $45,000 at the end of the 2-year term of the simple interest loan. What rate of interest did he pay his parents?

**Chemistry**

Popcorn kernels pop independently (i.e. unimolecularly). For one brand at constant temperature, 15 kernels pop in 10 seconds when 200 kernels are present. After 35 kernels have popped, how many kernels will pop in 10 seconds? (Your answer may include fractions of a kernel).

**geometry**

In the figure below, the length of CB is 64 units and the length of BG is 137 units. What is the length of EA?

**PHI103 Informal Logic**

If P, then Q, where P and Q are both sentences. P is the antecedent of the conditional—the ‘if’ part—and Q is the consequent—the ‘then’ part. The corresponding conditional of an argument contains the conjunction of the premises in the ...

**PHI103 Informal Logic**

Assume Mary is forced to let her children go hungry or steal some food from a local grocery store. Which should she do? Construct an argument that supports Mary's decision to steal the food or an argument that shows why Mary should not steal the food.

**math**

How do I simplify the following expression using the distributive property? 7z-4+6(2z-9)

**Algebra**

I don't know how this answer was achieved. Can you take me step by step? A=1500(1+.043/4)^(4(6)) = $1938.84

**Algebra**

That is what I have but those aren't my answer choices. a. 2/ã3 b. ã6/3 c. -ã6/2 d. ã6/2 Which one would it be?

**Algebra**

Help! sin B = ( 5 square root 2)/ (5 square root 3), find the value of csc B

**Algebra**

log25 8 less than or greater than x How do I write this in a different form? fraction

**Algebra**

Please explain One factor of x3 + 5x2 + 2x - 8 is (x + 4). Find the remaining factors.

**Physics Help**

0.30 mol of argon gas is admitted to an evacuated 50cm^3 container at 20 C. The gas then undergoes an isobaric heating to a temperature of 340C. What is the set up for this? I can plug in the values

**Algebra**

Sum of the solutions to x2 - 3x - 18 = 0 Is it -3 ?

**Algebra**

Simplify (d^4)(d^5)^3. Is it d^27

**Algebra**

Answer (1,3)

**Algebra**

Solve the following system using substitution: y = x + 2 y = 3x I don't understand this question.

**Physics**

I got the above question correct, but this next one is the one I need help with: Some hydrogen gas is enclosed within a chamber being held at 200C whose volume is 0.025m^3. Initially, the pressure in the gas is 1.50 * 10^6 Pa (14.8 atm). The chamber is removed from the heat ...

**Physics**

Some hydrogen gas is enclosed within a chamber being held at 200C with a volume of 0.025m^3. The chamber is fitted with a movable piston. Initially, the pressure in the gas is 1.50*10^6 Pa (14.8 atm). The piston is slowly extracted until the pressure in the gas falls to 0.95...

**Physics**

I saw that but I don't understand what the actual answer should be.

**Physics**

A gas with initial conditions p_i, V_i, and T_i expands isothermally until V_f=6 V_i. What are (a) T_f and (b) p_f? 1)T_f/T_i= 2)p_f/p_i= I don't know how to solve this

**Algebra 2**

Help List all the possible rational zeros of p(x) = 2x^3 - 3^2 + 4x - 6.

**algebra 2**

I don't know how to do this. Which describes the number and type of roots of the equation x^3 - 4x^2 + 50x + 7 = 0? a. 1 positive, 2 negative b. 2 positive, 1 negative c. 3 negative d. 3 positive.

**Algebra-Matrix**

What about this one? Correct? |1 0 0 1| The answer would be 1

**Algebra-Matrix**

Is this right then? |12 -21 -2 -2/3| answer-1/50

**Algebra-Matrix**

How would I do these Matrices? 1. |1/2 14 10 -8| 2, Let matrix A = [8 -2 4 7 ] Let matrix B = 2A, Find b_22

**Algebra-Matrix**

answer 1. ? 2. 3

**Algebra-Matrix**

Solution of the determinant? Matrix |1 7 0 3| How do I do this?

**Algebra-Matrix**

Solve for x Matrix (5x-8 1 = (2 1 3 4m-1) 3 7m +6) How do I do this?

**Algebra-Matrix**

What element is a location a_23 of matrix A, if |4 -3 4| 5 0 -6 7 2 -8 I have the answer at -6 Is this correct?

**Algebra**

Did I answer these correct? 19.Given matrices A, B, and C are all 2x2, determine whether the equation is true for the given matrices. C(A+B)= CA + CB Answer- False 20.Matrix multiplication is not commutative. Answer-False 21.For matrices, A + B = B + A Answer-True

**Algebra**

Can you tell me if these are correct? I am not sure that I understand this. 1. Which is the solution for the determinant? |10 0)| 5 -7 Answer- -70? 2.Which is the solution for the determinant? |1 7)| 0 -3 Answer- -3