All Questions ⁺⁰237681 Questions

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131

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solve

1. Find all real numbers a that satisfy \frac{1}{64a^3 + 7} - 7 = 0.
2. Find all values of a that satsify the equation \frac{a}{3} + 1 = \frac{a + 3}{a} + 1.

Guest Jun 28, 2023

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141

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How do I transpose to make x the subject?

How do I transpose to make x the subject?
459.93+(50*(((x-58.8)+((x-61.8)/2)+((58.8-58.8)/4))/2.9)*(3/3))=399.93
I want to transpose so it looks something like
x=(-459.93+58.8)+61.8)/2)-((58.8+58.8)/4))/2.9)*(3/3))+399.93)/(+(50*(((+(()
This read more ..

Guest Jun 28, 2023

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103

2

what is the size of an exterior angle of a regular polygon with 180 sides.

what is the size of an exterior angle of a regular polygon with 180 sides.

Guest Jun 28, 2023

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126

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system

Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations
a + 2b + 3c + 4d + 5e = 41
2a + 3b + 4c + 5d + e = 15
3a + 4b + 5c + 1d + 2e = 34 read more ..

Guest Jun 28, 2023

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139

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+8

Find all real zeros

find all real zeros of the function: f(x)=4x(x-9)^2 (x-7)^2

bluemix Jun 28, 2023

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137

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help

The height (in meters) of a shot cannonball follows a trajectory given by $h(t) = -4.9t^2 + 14t - 0.4$ at time $t$ (in seconds). As an improper fraction, for how long is the cannonball above a height of $6$ meters?

Guest Jun 28, 2023

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129

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SOMEONE PLEASE HELP

What is the value of b + c if $x^2+bx+c>0$ only when $x\in (-\infty, -2)\cup(3,\infty)$?

Guest Jun 28, 2023

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125

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help plz

Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.

Guest Jun 28, 2023

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129

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help plz

A magician makes potions by combining maple syrup from a magical maple tree with ordinary water. The magician starts with a large supply of two potions: a red potion, which is 60% magical syrup by volume (and the rest is just water), and blue potion, read more ..

Guest Jun 28, 2023

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141

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solve

A candy bar and a piece of bubble gum together cost 1.50. The candy bar costs a dollar more than the bubble gum. How much does the piece of bubble gum cost, in cents?

Guest Jun 28, 2023

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137

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trapezoid

Can anyone help with this?
Let ABCD be a trapezoid with bases AB and CD. Let P be a point on side CD, and let X, Y be the feet of the altitudes from P to AD, BC respectively. Prove that if AD = 5, BC = 7, AB = 6, CD = 12, read more ..

Guest Jun 28, 2023

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140

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a question

What is the value of b+c if $x^2+bx+c>0$ only when $x\in (-\infty, -2)\cup(3,\infty)$?

Guest Jun 28, 2023

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63

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+1348

Probability

Each face of a cube is painted randomly one of the colors red, orange, yellow, green, blue, purple, brown, black, or white. What is the probability that the cube has at least one pair of faces that share an edge and are the same color? Express your answer read more ..

sandwich Jun 28, 2023

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104

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+1348

math question

Tanzi and Maeve each have brand new $1200$ mL bottles of soap. They use soap at different constant rates. When Tanzi's bottle is completely empty, she asks Maeve to add soap from Maeve's bottle, which is still two-thirds full. How many milliliters of soap read more ..

sandwich Jun 28, 2023

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137

2

help please

For how many integer values of x is $5x^{2}+19x+16 > 20$ not satisfied?

Guest Jun 28, 2023

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142

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system

Im having trouble with this
One ordered pair (a,b) satisfies the two equations ab^4 = 48 and ab = 72. What is the value of b in this ordered pair? (Note: you may have to use the Tab key to get your cursor into the middle answer box read more ..

Guest Jun 28, 2023

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125

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coefficient

Find the coefficient of y^4 in the expansion of (2y-5+3y^2)^6.

Guest Jun 28, 2023

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122

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solve

Find all values of x such that \sqrt{4x^2} + \sqrt{x^2} = 6 + 3x.

Guest Jun 28, 2023

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119

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altitudes

I need help with altitudes
Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = 12, and CF is a positive integer, then find the largest possible value of CF.

Guest Jun 28, 2023

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135

3

Least to greatest.

Arrange the following numbers in increasing order (smallest first, biggest last):A = 2*1/2*4*1/6
B = 12*128
C = 1*8*1/5^2
D = 4*(-1)/2*(-1)*8*(-1)
E = 3*2^(1/2)*4*1/4

Guest Jun 28, 2023

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134

3

system

Find the ordered triple (p,q,r) that satisfies the following system:
p - 2q = 3
q - 2r = -2 + q
p + r = 9 + p read more ..

Guest Jun 28, 2023

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122

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rates

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 50 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive?

Guest Jun 28, 2023

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141

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ellipse

The foci of an ellipse are at $(2, -3 + \sqrt{5})$ and $(4,-8).$ If the ellipse is tangent to both the $x$-axis and $y$-axis, then find the length of the major axis.

Guest Jun 28, 2023

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131

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ellipse

The equation of the ellipse shown below can be written as
\[\frac{(x - h)^2}{a^2} + \frac{(y - k)^2}{b^2} = 1,\]
where $a$ and $b$ are positive. Find $h + k + a + b.$ read more ..

Guest Jun 28, 2023

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