All Questions ⁺⁰237757 Questions

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133

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system

I need help with this
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb read more ..

Guest May 29, 2023

May 28, 2023

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141

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solve

Solve for the variable x in terms of y and z, assuming y \neq \frac{1}{2}:
xy + x = \frac{3x + 2y + z + y + 2z}{3}

Guest May 28, 2023

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141

1

geometric series

find b if b/7 + b^3/7^3 + b^5/7^5...=7.

Guest May 28, 2023

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150

1

I'm confused

For what value of x will 3+x/5+x and 1+x/2+xbe equal?

Guest May 28, 2023

0

143

1

system

Real numbers a and b satisfy
a + ab = 250
a - ab = -240
Enter all possible values of a, separated by commas. read more ..

Guest May 28, 2023

0

144

1

angles

In triangle $ABC,$ $\angle A = p + 2q$ degrees, $\angle B = 6p - 8q$ degrees, and $\angle C = 17p + 2q$ degrees. Find $p$ (in degrees).

Guest May 28, 2023

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123

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right triangle

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 May 28, 2023

0

147

1

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 May 28, 2023

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135

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Altitudes

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

Guest May 28, 2023

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96

3

Help

In Ms. Q's deck of cards, every card is one of four colors (red, green, blue, and yellow), and is labeled with one of seven numbers (1,2, 3, 4, 5, 6, and 7). Among all the cards of each color, there is exactly one card labeled with each number. The cards read more ..

Guest May 28, 2023

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145

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help with geo

In triangle PQR, let X be the intersection of the angle bisector of angle P with side QR, and let Y be the foot of the perpendicular from X to line PR. If PQ = 9, QR = 9, and PR = 9, then compute the length of XY. read more ..

Guest May 28, 2023

+1

132

2

+56

Point U is outside of a circle. Points X and Y are on the circle and are colinear with point P (i.e., the three points are on the same line)

Point U is outside of a circle. Points X and Y are on the circle and are colinear with point P (i.e., the three points are on the same line). Line UV is tangent to the circle at point V. Prove that UV2 = UX * UY.
Thanks in adv read more ..

somebodyIUsedToKnow May 28, 2023

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147

1

Help! Im dyslexic and this is one problem I failed on my test.

The number of visits to public libraries increased from 1.4 billion in 1990 to 1.5 billion in 1994. Find the average rate of change in the number of public library visits from 1990 to 1994.

Guest May 28, 2023

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150

1

ratios

A bag contains yellow, green, blue, and white marbles. The ratio of yellow, green, blue, and white marbles is 1:2:3:4. If the bag contains 180 marbles, then how many blue marbles are there?

Guest May 28, 2023

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132

1

ratios

At a math convention, a poll is taken about cable news. It turns out that 7 out of every 12 people are bored by cable news. If there are 280 people at the convention who are bored by cable news, then how many people at the convention read more ..

Guest May 28, 2023

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143

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solve

Five times a number is divided by 7 more than the number. If the result is 0, then what was the original number?

Guest May 28, 2023

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140

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trapezoid

help i need 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 May 28, 2023

+1

131

5

+56

The line y = –11x – 7 is tangent to the parabola y = ax² + bx + 1 at point P. The x-coordinate of P is –2. Determine the value of a + b.

The line y = –11x – 7 is tangent to the parabola y = ax² + bx + 1 at point P. The x-coordinate of P is –2. Determine the value of a + b.
Thanks in advance

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somebodyIUsedToKnow May 28, 2023

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146

1

help plz

How many solutions are there to the equation
u + v + w + x + y + z = 10
where u, v, w, x, y, and z are nonnegative integers, and x is at most 2 or y is at least 3?

Guest May 28, 2023

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132

0

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 May 28, 2023

0

139

2

+274

Important help!

How many 5-digit numbers have at least one zero?

supremecheetah May 28, 2023

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148

1

help do this question

Students are donating money to a charity fund that helps less privileged kids. The number of $2, $5 and $10-notes donated are in the ratio of 8 : 3 : 7.
58 of the $2-notes and 10 pieces of $5-notes are taken out. The remaining notes are worth read more ..

Guest May 28, 2023

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