02/20/20

series 2/9+ 3/16+ 4/25+5/36+6/49?
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02/19/20

If sin⁡ x=3√/2, and 90°<x<180°, what is cos⁡(x/2)?
If sin⁡ x=3√/2, and 90°<x<180°, what is cos⁡(x/2)?
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02/19/20

algebra class work
A linear function  models a relationship in which the dependent variable decreases 2 units for every 3 units the independent variable increases. Graph h when h(0)=2 
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02/18/20

True Or False Questions
The base angles of △ABC are congruent to the base angles of △EDF T OR FTwo sides of △ABC are congruent.  T OR FTwo angles of △DEF are congruent.  T OR FTwo sides of △ABC are congruent to... more
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02/16/20

straight-line distance of an airplane to a control tower is 36.2 km. If the angle of elevation from the tower to the plane is 4°, and the plane is 24 km south how much west of the tower is the plane?
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02/15/20

given -1/3x -2/3>=7x+3, which property is used below. 3(-1/3x-2/3)>=3(7x+3)
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02/14/20

They plan for two fireworks to explode at the same height in the air. They travel at 320 ft/s(Firework A) and 240 ft/s (Firework b). Firework B is launched 0.25 s before Firework A.

How many seconds after Firework B launches will both fireworks​ explode?
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02/13/20

A waitress sold 16 ribeye steak dinners and 22 grilled salmon dinners, totaling $586.87 on particular day.

A waitress sold 16 ribeye steak dinners and 22 grilled salmon dinners, totaling $586.87 on particular day.
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02/13/20

x(x+y2+y+x2) the answer
x(x+y2+y+x2)
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02/13/20

Calculus word problem
a tank in the shape of an inverted cone is being drained. the radius is 6 feet, and its height 15 feet. At what rate is the depth of the water tank decreasing at the instant when the depth is 7... more
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02/12/20

Given vectors u = -2i-j and v=-3i+2j, find v-3u
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02/12/20

97 Write ⟨0,-4⟩ in ai+bj form.

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02/12/20

Find the angle between -5i+12j and 3i+2j.

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02/12/20

GEOMETRY HELP PLEASE
Use the equation and given point to answer the questions below. The equation of line a is y=1/2x−1, and it passes through point (6,2).Line b is perpendicular to line a, and it passes through point... more
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02/10/20

Which of the following points satisfies the inequality 2x + 3y ≤ -5?
A.  (0, -1)B. (0, 1)C. (-4, 0)D. (4, 0)
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02/10/20

what is the equation of an absolute value function that opens down and has a vertex at (5,-2)?
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02/07/20

If x = 6sin(theta), use trigonometric substatution to write the square root of 36-x^2 as a trigonometric function of theta, where 0 is less then theta wich is less then pi/2
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02/06/20

In triangle △ABC, ∠ABC=90°, BH is an altitude. Find the missing lengths. h AH=HC+2 and BC=2, find HC.
In triangle △ABC, ∠ABC=90°, BH is an altitude. Find the missing lengths.  Chapter ReferencehAH=HC+2 and BC=2, find HC.
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02/06/20

If sin⁡ x=12/13, and 0°<x<90°, find cos⁡(x+30°)
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02/06/20

If tan x=20/21, and π<x<3π/2, what is cos⁡(x+π/2)?
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02/06/20

If sin⁡ x=−5/13, and 270°<x<360°, find cos⁡(x/2).
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02/06/20

D is between E and C. If DE = 2x - 7, CD = 6, and CE = x + 6, find DE
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01/27/20

Find the exact value of the following under the given conditions a.cos(a-b) b.(a-b) c.tan(a-b)
sin b=-9/23,pi<β<3pi/2cos a=-35/37, pi/2<β<pi
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01/27/20

Find the exact value of the following under the given conditions a.cos(a-b) b.(a-b) c.tan(a-b)
sec a=-35/28, pi/2<β<picot b=-21/20, pi/2<β<pisum and difference identities
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01/22/20

algebra - inequalities and more
Ahmad is choosing between two exercise routines. In Routine #1, he burns 50 calories walking. He then runs at a rate that burns 12.9 calories per minute. In Routine #2, he burns 22 calories... more
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