10/01/19

A scientist wants to create 120 ml of a solution that is 30% acidic. To create this solution, she has access to a 20% solution and a 45% solution. How many milliliters of each solution should she
combine to create the 30% solution? Should this be solved using three variables?
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10/01/19

Write the equation of a circle where A (1,0) and B(−5,8) are the endpoints of a diameter.
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09/30/19

BASIC PHYSICS HELPPPPPPPPPP
When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has increased to 10°C. (Round your answers to two decimal places.)(a) What is... more
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09/30/19

Matrice Question
The local florist made three sets of fertiliser mix (A, B and C) which she sold in 1 litre bags. To make mix A, she used 100 g of potash, 600 g of nitrogen and 600 g of blood and bone. At the end... more
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09/29/19

Line ℓ1 has the equation y= - x+1 and line ℓ2 has the equation x+y= - 1. Find the distance between ℓ1 and ℓ2.
Round to the nearest tenth
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09/29/19

You need 120 mL of a 65% alcohol solution. On hand, you have a 60% alcohol mixture. How much of the 60% alcohol mixture and pure alcohol will you need to obtain the desired solution?
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09/27/19

The lion fish at the zoo requires 456 gallon tank to be 4% salt . Some of the water evaporates raising the salinity to 7% . How much water need to be added to bring the salinity back to 4%
The lion fish at the zoo requires 456 gallon tank to be 4% salt . Some of the water evaporates raising the salinity to 7% . How much water need to be added to bring the salinity back to 4%
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09/26/19

If I had $1, and I bought a lottery ticket, and won $512, how much of a percent increase would I have gained?
My friend thinks the answer is 512%, which I keep telling him is wrong. He keeps dragging on and keeps annoying me about it, please just give me a straight answer with all the steps so I can stop... more
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09/26/19

if -2(3y+5) = -4 find the value of 5y
Really struggling in class my teacher explains it strange and can't understand him
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09/26/19

Use implicit differentiation to find the slope of the tangent line to the curve defined by xy^3+2xy=60 at the point (5,2)
I would appreciate if all work is shown with detailed steps! Provide the answer to the slope of the tangent line to the curve at the given point is _____.
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09/26/19

A 25 kg box sits on an incline of 30 degrees. The coefficient of kinetic friction between the box and the incline is 0.29. Find the acceleration of the box down the incline.
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09/23/19

Folgers coffee is priced at $12.88 for 80 cups of coffee and Seattle’s Best is prices at $9.00 for 50 cups. Which brand has the better deal?
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09/23/19

One Dimensional motion

A tennis player hits a ball straight up in the air at a velocity of 3m/s l. How long will it take for the ball to return to the height from which it was hit?
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09/23/19

It takes 20 minutes for5 people to paint 5walls. How many minutes does it take 9 people to paint 9 walls?
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09/23/19

Vertical Translation
Find an equation for a sine function having an amplitude of 3, period of 4pi, horizontal shift of 2pi to the left, and a vertical shift of 1.
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09/23/19

algebraic math problem

Find three consecutive even integers such that the sum of twice the smallest number and three times the largest is 42.
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09/21/19

Percent Pont Change
State whether the following statement is true or false, and explain why. If the statement is false, state the true change.The cost of tuition at a college falls by 33% and then later rises by 33%.... more
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09/21/19

Vertical Translations! Please help!
A cosine function has an amplitidue of 1/3, a period of pi/3, horizontal shift of -2pi, and a vertical shift of -3. What is the y-value of the negative function when x=pi?
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09/20/19

what is the average rate of change from x=3 to x=5 for the function g(x)=log(x+1)
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09/20/19

Co ordinate geometry
If points A(-3,2), B(1,-2) and C(k,-10) are collinear, then find k
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09/20/19

Solve the compund inequality. 2w-6>_0 or 3w-1<_-4 Write the solution in interval notation.. If there is no solution enter 0 with a line crossed through it
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09/20/19

A sofa is on sale for 35% off. The sale price is$598. What was the regular price?
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09/20/19

A cord passing over a frictionless, massless pulley has a 4 kg object tied to one end and a 21 kg tied to the other. Compute the magnitude of the acceleration in the cord.
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09/20/19

How much energy is required to lift a 3000 lb. car 28 inches? Need in lb-ft, joules, and btu.
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09/19/19

use the function h(r) = 5r - 20

use the function h(r) = 5r - 20 find h(2x)
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