10/24/23

geometry. NEED HELP
Determine the equation of the line that passes through the point (-4,11) and is perpendicular to the line y=(1)/(4)x-3.
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09/27/23

One base of a trapezoid is twice as long as the other. The height is the average of the two bases. The are is 324 cm2. Find the height and lengths of the bases.
Let the lengths of the bases be 2x and 4x
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09/21/22

The shortest side of a triangle is 8 inches less than the medium side, and the longest side is 4 inches longer than 3 times the shortest side. If the perimeter is 27 inches, find the length of the…
The shortest side of a triangle is 8 inches less than the medium side, and the longest sideis 4 inches longer than 3 times the shortest side. If the perimeter is 27 inches, find thelength of the... more
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06/21/22

A 10 kg block lies on a smooth plane inclined at 51°. What force parallel to the incline would prevent the block from slipping?
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05/25/22

Geometry probability

A two sided coin is flipped at the same time that a number cube with faces labeled 1-6 is rolled. How many outcomes are possible?
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05/05/22

Help explaining equation simplifying

here's what I'm working with:pi ([(24-2s)/pi]^2) + s^2 = [(4/pi) + 1]* s^2 - 96s/pi + 576/pii have no idea where the (4/pi + 1) came from can someone walk me through the simplifying?
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04/15/22

Please assist me in solving this problem

Find K so that the line through (3,5) and (k,6) is perpendicular to 2y+5x=1So i converted the given equation to y=5/2x+1/2then i have found the slope of the perpendicular line to be -2/5. Im now... more
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04/15/22

A standard deck of cards consists of four suits, with each suit containing 13 cards, for a total of 52 in all

How many 7-card hands will consist of exactly 4 hearts and 2 clubs 
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04/14/22

Find the critical points. 𝑦(𝑥)=15𝑥^(17/3 ) −85√x
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04/12/22

Let U be a universal set with disjoint subsets A and B with n(U ) = 55, n(A) = 25, and n(B) = 10.
(a) Find n(A ∩ B) (b) Find n(A′ ∪ B)
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04/12/22

Evaluate the integral.
Evaluate the integral.3π/20 4 | sinx | dxEvaluate the integral.Integral [0, 3π/2] 4 |sinx | dx
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04/12/22

momentum and collisions
A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder.m = 0.0295 kgv = 610 m/st = 2.25 msa) what is the magnitude of the average force exerted on a... more
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04/10/22

Average Rate of Change
A theatre has determined that its profit function is given by P(x) = x^2+9x-11, where x is the admission ticket price, in dollars. What would be the average rate of change in profit if the ticket... more
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03/30/22

right end point approximation using rectangles
approximate the area under the curve y=x^2 from x=3 to x=5 using a Right Endpoint approximation with 4 subdivisions.
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03/30/22

Probability of two boys and 2 girls?

In a family with 4 children, what is the probability of having 2 boys and then 2 girls, in that order? (Exclude multiple births and assume all outcomes are equally likely).In a family with 4... more
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03/29/22

What is the angle of inclination of the straight line that passes through the point (1,4) (6,0)?
I got the slope (-4/5) from the two points above. I plugged the slope I used the angle of inclination therom as so tan x = -4/5 and then arranged and plugged it in my calculator as so tan-1(-4/5) =... more
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03/28/22

Quadratic Equations Algebra 1
Write the quadratic equation whose roots are 2, and 4 and whose leading coefficient is 3.
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02/06/22

You need a 40% alcohol solution. On hand, you have a 180 mL of a 30% alcohol mixture...
You need a 40% alcohol solution. On hand, you have a 180 mL of a 30% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired... more
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02/05/22

Find an equation of the tangent line to the graph at the given point. (The graph is called a serpentine.)
y = ? 
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09/18/21

A car starts from rest and drives in a straight line for the next 3.8 km distance in the East direction
A car starts from rest and drives in a straight line for the next 3.8 km distance in the East direction with a constant horizontal acceleration. If it took 10 minutes for the car to... more
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09/09/21

Determine the best method to solve the system of equations: 5x-2y=4 and 2x+2y=8
(A) substitution(B) elimination using addition(C) elimination using subtraction(D) elimination using subtraction
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09/09/21

3(d-8)-5=9(d+2)+1
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09/08/21

How to Solve Distance Question
A driver with a 0.80-s reaction time applies the brakes, causing the car to have acceleration opposite the direction of motion. Assume the acceleration is equal to -7.0 m/s2.If the car is initially... more
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04/03/20

Trigonometry question
In a right triangle givent trig ratios of: .Find  Enter answer in a form of a/b, for a fraction 
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03/20/20

angular speed .
a fan turns at the rate of 950 revolutions per minute. Find the angular speed of any point on one of the fan blades. Use 3.14 as an approximation for pi. Express your answer in radians per second... more
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