All Questions ⁺⁰216220 Questions

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203

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+93

could someone please help me out with this question?

8cos^2θ – 10cosθ – 7 = 0

vxnessa Nov 24, 2021

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215

1

+93

could anyone please help with this?

If θ is an angle in the third quadrant and cscθ=−135, find the value for 13sin2θ – 2cos2θ in the most accurate and proper form.

vxnessa Nov 24, 2021

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119

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Algebra

Solve $\frac{1}{3} t - 5 < t - 2 + 5 \le -3t + 7 - 2.$ Give your answer as an interval.

Guest Nov 24, 2021

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113

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please help

p is inversely proportional to q and when q is 20, p is 54

Guest Nov 24, 2021

Nov 23, 2021

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106

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Coordinates

A triangular region is enclosed by the lines with equations y = 1/2 x + 3, y = -2x + 6 and y = 2. What is the area of the triangular region? Express your answer as a decimal to the nearest hundredth.

Guest Nov 23, 2021

0

142

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Octagon

In the regular octagon below, find x.

Guest Nov 23, 2021

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111

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System

Consider the system of equations
5x - y = 31
-3x + 4y = -37
read more ..

Guest Nov 23, 2021

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141

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help please

Let be real numbers such that
Find the minimum value of in terms of .

Guest Nov 23, 2021

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114

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Math

The numbers x and y satisfy 2^x = 15 and x^y = 32. What is the value of xy?

Guest Nov 23, 2021

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124

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Rhombus

A rhombus with area 840 has a diagonal of length 42. What is its side length?

Guest Nov 23, 2021

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108

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Geometry

A hexagonal prism has a height of 6 units and a regular hexagonal base with a side length of 4 units. What is the length of the longest segment that can fit inside this prism?

Guest Nov 23, 2021

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134

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4.09 unit test lines

Shawn has a budget of $50 per month to spend on bus fare. He made a table showing the total amount of bus money he will have left after the given number of rides.

Number of rides 0 9 18 27
Total amount of bus money left ($) read more ..

Guest Nov 23, 2021

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93

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Probability

If a committee of six students is chosen at random from a group of six boys and four girls, what is the probability that the committee contains exactly two boys? Express your answer as a common fraction.

Guest Nov 23, 2021

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129

1

PLEASE HELP

The fourth term of an arithmetic sequence is 3, and the ninth term is 23. What is the first term of this sequence? What is the sum of the first ten terms of this sequence?

Guest Nov 23, 2021

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130

1

Geometry

In triangle ABC, M is the midpoint of AB. Let D be the point on BC such that AD bisects angle BAC, and let the perpendicular bisector of AB intersect AD at E. If AB = 44, AC = 32, and ME = 18, then find the area of triangle ACD.

Guest Nov 23, 2021

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111

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Minimum value

Find the minimum value of
2x^2 + 2xy + y^2 - 2x + 12y + 4
over all real numbers x and y.

Guest Nov 23, 2021

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134

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Parametric Equations

What are the y-intercepts of the graph of the parametric equations

x = 1 + 2*sin(t)
y = 2 + 6*cos(t)^2 read more ..

Guest Nov 23, 2021

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172

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Algebra

Rewrite the expression g^4 + 18g^2 + 24 in the form c(g^2 + p)^2 + q. What is q?

Guest Nov 23, 2021

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311

2

How many distinguishable permutations of the letters of the word CONCLUSIONS?

How many distinguishable permutations of the letters of the word CONCLUSIONS?

Guest Nov 23, 2021

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130

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is there any way to type ∞ in the calculator

For example, how i can calculate : atan(-∞)

Guest Nov 23, 2021

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104

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Number Theory

Suppose $b_a^2 = 71_a$, where a and b represent two distinct digits. If b = a - 11, find b.

Guest Nov 23, 2021

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