11/01/19

probability questions from Lumosity I don't understand
q1 chance of (crown and then red) = 1/4 x chance of purple a1 crown, crown, red, purple,purpleq2 chance of (red or green) = chance of 2 stars in a rowa2 heart, heart, heart, star, starNeed... more
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11/01/19

Rational expression word problem
A large mixing tank currently contains 200 gallonsof water, into which 10 pounds of sugar have beenmixed. A tap will open, pouring 10 gallons of waterper minute into the tank at the same time... more
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11/01/19

Which number produces a rational number when added to 0.25
A. 2/9B. 0.2645751311...C. √2D. 𝛑
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11/01/19

Trig Question Thank You In Advance
Solve for x by factoring where pi/2 ≤ x ≤ pi.3 csc x cot^2 x = csc x
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11/01/19

Trig Question, Solve For X

Solve for x where pi/2 ≤ x ≤ 3pi/2.- 4cos^2 x + 4sqrt(2) sin x + 6 = 0.When I did the problem I got 5pi/6, but I am not sure if that is correct.
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11/01/19

What is the remainder if the equation is divided by (x-5)
(X)=2x^3-8x^2-5x-25 what is the reminder of f the equation is divided by (x-5)
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11/01/19

mismatched units

Which of the following arrangements of units are considered "mismatched units?"Select one:a. (kilowatt)(hour)b. meter/secc. (foot)(pound)d. kilometer/sec2i'm pretty sure D isn't the answer, but i'm... more
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11/01/19

Ap Stats Probability
The teacher had seven students lined up to ask about homework. The class had 20 males and 17 females. What is the probability that all 7 students who lined up were male? Please leave in fraction form. more
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11/01/19

The landlord of a 40-unit apartment building is planning to increase the rent.
Currently, residents pay $700/month. 4 units are vacant. Every $25 increase in monthly rent results in one more vacant unit. What rent results in max. revenue?
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11/01/19

The landlord of a 40-unit apartment building is planning to increase the rent.
Currently, residents pay $700/month. 4 units are vacant. Every $25 increase in monthly rent results in one more vacant unit. What rent results in max. revenue?
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10/31/19

Quantity is profit
Revenue is given by R(q) = 600q and cost is given by C(q) = 7000 + 3q2. At what quantity is profit maximized?q =*** I got 100 and it was correctWhat is the total profit at this production... more
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10/31/19

Help me! Math Vectors! A helicopter wishes to fly directly East at 100 km/h.

A helicopter wishes to fly directly East at 100 km/h. If a constant wind blows directly from the North-East at 40 km/h, find the direction and velocity of the wind speed that must be maintained in... more
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10/31/19

How many liters of a 7.40 MKNO3 solution can be prepared from 58.9 g of KNO3?
Express your answer with the appropriate units.
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10/31/19

I don't even know where to start
A bridge with a supporting parabolic arch spans 60 feet with a 30-ft wide road passing underneath the bridge. In order to have a minimum clearance of 16 feet at either edge of the roadway, what is... more
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10/31/19

Help me with this integral problem?
Show whether ∫ 1/x^4 dx from -1 to 2 is convergent or divergent. If convergent, evaluate the integral. Here's my work:After integrating, I got [-1/(3x^3)] from -1 to 2 and I got -3/8 as the answer... more
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10/30/19

Express the area of the shaded region below as a function of x. The dimensions in the figure are centimeters.
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10/30/19

Linear and exponential

Hi Show me how to do this problem y=3(2)* on a graph please can’t figure it out.
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10/30/19

If csc theta=13/5 and cos theta>0 what is sin 2theta
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10/30/19

There are 52 cards in a standard deck what is the probability that the card drawn is a face card and a heart
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10/30/19

Please help STAT QUESTION

There are 10 red, 5 blue and 3 green shirts in a drawer. A shirt is selected and  returned to the drawer and then the second shirt is selected. What is the probability that the shirts are of... more
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10/30/19

You are working for a power plant that is located on a highway that runs east to west.
The town of Cortez is located 38 miles east of the power plant, and 5 miles north of the freeway. The town of Joplin is located 32 miles east of the power plant, and 9 miles south of the freeway.To... more
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10/30/19

graph y=3-2sinx for 0<x<2pi
start with graph of parent function sin x, then use transformation rules to complete it. label the function and transformation name on each step.
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10/30/19

Continuous compound problem
How long will it take for an investment of $1000.00 to grow to $6000.00 at an interest rate of 3% if interest is compounded a) 3 times per yearb) Continuously
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10/30/19

Let P=15(1.04)^T give the population (in thousands) of a town, with t in years. If the formula for P is written P=15(b)^t/12, find b exactly.
What is the meaning of b in the context of the population?
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10/30/19

If 2 supplements 3, then does 1 supplement 4?
The figure shows that there are two parallel lines, lines a and b. There is a transversal line called line t. No angles are 90 degrees and the parallel are vertical. Based off of the consecutive... more
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