Zara

This page lists questions and answers that were posted by visitors named Zara.

Questions

The following questions were asked by visitors named Zara.

I wanted to know: How can I find the concentration of 1.2 ml 2-chloro-2-methylbutane in 100ml of a solution containing 60% isopropanol and 40% water? The solubility is 1.2 percent by volume.

If a graph is given for a cuvette using a 1.00 cm , predict the graph if a 2.0 cm diameter test tube and a 0.50cm test tube are used. The points for the 1.00cm test tube are (0,0),((2E-5),0.1), ((4E-5),0.2), ((6E-5),0.4), ((8E-5),0.5)...linear graph X=Con...

I need to write a report on the garden route, in South Africa but I can't find the information I need. What is the garden route? Which towns form part of the garden route? Where can I find all the information I need?

This problem on my homework is asking me to write each fraction as a decimal, and round to three decimal places. The fraction was 17/16. I got 1.0625 for the decimal. What does it mean to round it to three decimal places, and how do I do that?

How fast must you release the string of your kite if the kite that you are flying is 40 meters high, 50 meters away from you and moving horizontally away at rate of 30 meters per minute?

You jog at 9.5 km/h for 7.0km , then you jump into a car and drive an additional 16km . With what average speed must you drive your car if your average speed for the entire 23km is to be 22 km/h? Work: i tried setting up a proportion and setting it to eac...

A lighthouse that rises 49 ft above the surface of the water sits on a rocky cliff that extends 19 ft from its base. A sailor on the deck of a ship sights the top of the lighthouse at an angle of 30.0 ∘ above the horizontal. If the sailor's eye level is 1...

How many moles of sodium ions are there in 5.85g NaCl? So far all I have tried to do is 5.85/58.5=0.1 mol of NaCl but I don't understand how you find the number of moles of sodium ions only.

I'm working on a problem that says: A 4.00 gram sample of a mixture of CaO and BaO is placed in a 1.00 L vessel containing Co2 at a pressure of 730 torr and a temperature of 25C. The CO2 reacts with the CaO and BaO forming CaCO3 and BaCO3. When the reacti...

What is "spatial data" (or "geospatial data")? I am not sure, I think it either all or just A. Which one would you pick? A. Information that is tied to a specific location B. A dataset containing information about cities and populations C. Data that can b...

Charlie's age is equal to 3 times her age in 3 years time minus 3 times her age 3 years ago. How old is Charlie?

An airplane leaves Atlanta at 2 PM and flies north at 250 miles per hour. A second airplane leaves Atlanta 30 minutes later and flies north at 280 miles per hour. At what time will the second airplane overtake the first? Answer Choices 6:20 PM 6:00 PM 6:4...

A regular tetrahedron has sides of length s. Show that the surface area, A, of the tetrahedron can be determined using the formula A= square root of 3s^2

If an architect made a drawing of a swimming pool with a length of 15 inches and width of 4 inches. And the scale she used is 1 inch= 3.5 feet, what are the actual dimensions of the swimming pool?

The length of a child's square-based jewelry box is 5cm more than its height. The box has a capacity of 500cm^3. Solve a polynomial equation to determine the dimensions of the box.

Solve the polynomial inequality algebraically. x^2-2x-8 ≤ 0

f(x)= a(x+4)(x+1)(x-2) Find a

Determine the equation for the vertical asymptotes, if they exist, for each function. Then, state the domain. f(x)= -1/x^2-7x+6

Solve algebraically: 4/2x-3 < 1/x+4

Angle a lies in the second quadrant and angle b lies in the third quadrant such that cos(a)=-3/5 and tan(b)=24/7. Determine an exact value for a) cos(a+b) b) sin(a-b) c) sin2a

Determine an exact value for the expression sinπ/6 tanπ/3 ÷ cscπ/4

Determine an exact value for the expression sec4π/3*cot5π/6-tan3π/4

A wheel of a child's car revolves at 15 rpm. a) What is the angular velocity of the wheel in radians per seconds? b) A painted dot on the circumference of the wheel is 12 cm from the center of rotation of the wheel. How far does the dot travel in 5s?

Sheila and her toboggan have a total mass of 45 kg. At one point during her toboggan ride down a frictionless hill, she is 10.0m higher than the bottom of the hill and moving at a speed of 8.0m/s. (5 marks) a) How much gravitational potential energy does...

Jillian has 4 ⅓ yards of ribbon. Each bow needs ⅓ yard of ribbon. How many bows will she make?

Which fraction is the largest? 2/3 7/15 2/5 9/15 4/5

when one mole of CaCl2 dissolves in water, 81.0kj of heat energy is quickly released. A sample of calcium chloride is dissolved in 150 grams of water. The temperature of the water increases by 4.5 degrees Celsius. What mass of calcium chloride was dissolv...

Jade throws a horseshoe toward a stake from the same starting point three different times. She tries to throw the horseshoe with the same amount of force each time. Jade measures the distance each horseshoe lands from the stake. Which distances did Jade l...

How many minutes is 3/8 of an hour

Using the substitution method what is X=4y+7 2x-6y=12

Erik wants to test clay, silt, and sandy soils for how well they hold water. In one or two sentences, explain how Erik should complete his investigation. pls helppppppp

How many number of molecules are there in 16g of H2CO3

Four simple machine and their uses

What type of simple machine is crossbar?

what are the states in south west

Define freehand sketching?

what are driving tools are used for

Name three things that shouldn't be done with your woodworking tools

What is the matching tool scriber

Meaning of scriber

PLEASE HELP!! I NEED ANSWERS FOR THE UNIT 7 LESSON 12 FUNCTIONS UNIT TEST! 1.Consider the function f(x) = 2x−1 What is the output if the input is x=−3 does anyone know all the answera?

Answers

The following answers were posted by visitors named Zara.

Hi I did what you said and got 11.32% for CaO, would that be right? Thank you!!

Tan theta=P/B Tan 30°=h/60 1/√3=h/60 60/√3=h 60√3/√3*√3=h 60√3/3=h 20*1.732=h h=34.64 m

Bro...i need an answer for this test...

Divide 30 by 108 = 5 by 18 5 by 15 multiply by 150 = 41.23 kg =41 2/3 kg is the Answer!

Find the number of different selections of 4 letters from the 9 letters of the word HAPPINESS which contain no Ps and either one or two Ss

Thanks a lot it's really explanatory and I can always defend it if I'm asked to do so

Thank you so much for explaining this! I really needed to complete my homework and this really helped!

Pls can u help me out with my question

Please wander in so broke this is my last question to my test 🙄 to get into a good school

A force of 120 N acts on stationary body 4 second and the body required a velocity of 36ms . Calculate the mass of the body.

Ok??????????????????

Solve the solution

Simple machine and their uses except lever Pulley and wheel and axe and inclined plane

Uses of wedge screw gears and cam

Google please I need the right answer what is an example of simple machine but what type of simple machine is it it isn't clear

What type of simple machine are the followings pair of scissors wheelbarrow axe screwdriver fishing reel ramp nutcracker cricket bats

What are the following used for pair of scissors wheelbarrow axe screwdriver fishing reel ramp Cross bar nutcracker cricket bats

What are the states in South West in the geopolitics zones

What are the states in South West in the geopolitics zones in Nigeria

What are the states in South South in the geopolitics zones in Nigeria

What are the states in South east in the geopolitics zones in Nigeria

What are the states in North east in the geopolitics zones in Nigeria

What are the states in North west in the geopolitics zones in Nigeria

What are the states in North Central in the geopolitics zones in Nigeria

Describe the purpose of freehand sketching in design and technology.

What would you use to pull out a nail that is stuck in a piece of wood?

What is metal work?

What is the common difference of the arithmetic sequence 50, 46, 42, 38,....?