1,090 Answered Questions for the topic Math Equations
07/25/16
Solve for x
The perimeter of a triangle is 10 (that is, a+x+(x+1)=10).
Use this and the cosine law to solve for x. Round answers to 2 decimal places.
Triangle:
<BAC: 60degrees
line BA: x
line AC:...
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07/25/16
For what value(s) of k does the system of equations
For what value(s) of k does the system of equations
y=x^2-3x+5
y=kx
have only 1 solution? Leave answers in exact form.
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07/25/16
Find the length of the part of the line y+x+6 'inside'......
Find the length of the part of the line y=x+6 'inside' (or above) the curve y=x^2. Leave answer in exact form.
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07/25/16
Find the coordinates of intersection
The equation of a circle of radius r with its center at the point (h,k) is given by (x-h)^2+(y-k)^2=r^2
Find coordinates of intersections of the following...
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07/24/16
Look for the intersections of the functions
f(x)=2x^2-3x+1
g(x)=-x^2+2x+3
Give your answers as coordinates (a,b)
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07/24/16
The x and y-intercepts of a quadratic function in the form
y=a(x-h)^2+k
are (2,0), (-4,0), (0,16).
Solve for a, h, and k.
Present answer in form y=a(x-h)^2+k.
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Math Equations
07/09/16
digits and products of a number
How many digits are in the product of 27 and 1023
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07/07/16
How can I solve for x in 3y=3x+1
Solve the literal equation for x.
3y=3x+1
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06/20/16
The lengths of two sides of a triangle are 12 inches and 4 inches. Which of the following dimensions is the third side of this triangle
i need help cause i am a dumbass
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06/13/16
The area of trapezoid is 210 cm^2. The height is 20 cm and the length of one of the parallel sides is 6 cm. find the length of the second parallel sides.
The area of a trapezoid is 210 cm^2. The height is 20 cm and the length of one of the parallel sides is 6 cm. find the length of the second parallel sides. Express your answer as a simplified...
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06/08/16
Growth and decay fomula N(t) = Noe^kt
A 40 gram sample of a substance that's used for drug research has a k-value of 0.1472.
Question: Find the substance's half-life,in days. Round your answer to the nearest tenth.
Growth...
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06/06/16
Rewrite the following equation so that y is a function of x
2x+18y=36
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05/26/16
Pre Calculus
Which of the answer choices has matrix multiplication defined?A B C D⌈1 2⌉ ⌈5 6 7⌉ ⌈-1 2 3⌉ [5 9 7]
⌊3 4⌋ ⌊8 9 0⌋ l8 -4 0l
..................⌊6 7 1⌋
a) ACb) BAc) ABd) CD
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05/26/16
Pre Calculus
Find a unit vector in the same direction as the given vector: v = 3i + 4 j.a) u=3/25i+4/25j b) u=3/√7i+4/√7jc) Vector v = 3i + 4 j is a unit vector.
d) u=3/5i+4/5j
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05/26/16
Pre Calculus
Find the projection of vector u onto vector v; projvu= ((u•v)/llvll2)vu = i – 5j and v = i + 5j
a) -12/13i-60/13j
b) 1/13i+5/13j
c) 12/13i+60/13j
d) -1/13-60/13j
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05/26/16
Pre Calculus
Use DeMoivre’s Theorem to find the power of the complex number and write your solution in the form, a + bi.a) −4 − 4i b) -4√2-4√2ic) −8 − 8i
d) -2√2-2√2i
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05/26/16
Pre Calculus
Rewrite the given parametric equations in Cartesian form: x(t)=4-t y(t)=3t+2
a) y=14-3x
b) y=3x+2
c) y=x+4
d) y=4-x
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05/23/16
Write an equation for cos(x) with the given amplitude and period
Amplitude: 10; period:(pi)/8
show work here:
equation:
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Math Equations
05/23/16
See below for the question
Peter has three piles of pickled peppers. He has a total of 52 pickled peppers. His second pile has seven more peppers then the first pile. His third Pile has three fewer then the first pile....
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Math Equations
05/23/16
Look at description below
Peter had three piles of pickled peppers. He has a total of 52 pickled peppers. His second pile has seven more peppers than the first pile. His third pile has three fewer than the first. Write and...
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05/21/16
Pre Calculus
Find the exact value of the expression tan(7pi/12)
a) 2(1+√3)-2
b) 2(1-√3)-2
c) -2(1+√3)-2
d) -2(1-√3)-2
05/21/16
Pre Calculus
Use the given triangle to evaluate the trigonometric expression. The graph is a right triangle, the side on the y-axis =5 and the side o the x-axis =12. The hypotenuse is not given. sin(y/2)=?
a)...
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