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Post New Question
All Questions
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230599 Questions
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193
1
Trig pls help
Let S be the set of all points (x, y) in the coordinate plane such that and . Find the area of the subset of S for which
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Guest
Aug 2, 2022
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216
3
+30
help pls
How many pairs of integers $(b,c)$ satisfy the equation
b+7/b+4 = c/9
BuilderBoi
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Gordn
Aug 2, 2022
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226
3
Trigonometry
Given that find
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Guest
Aug 2, 2022
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165
1
equations
D = 2N, Q = D+10
N + D + Q = 210
N + 2N + (2N + 10) = 210
Solve for N, then D and Q.
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Guest
Aug 2, 2022
0
191
2
+275
Counting
At Roxas Middle School, every student studies Spanish, Chinese, or both Spanish and Chinese. There are 374 students enrolled at the school, and 100 of these students study both Spanish and Chinese. Also, the number of students studying Spanish is
read more ..
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Jasonkiln
Aug 2, 2022
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217
2
+275
Counting problem
Every student in the school math club is either in 7th th or 8th grade, and either has blue, green, or brown eyes. There are 46 students in the math club. Of these students, 9 students are 7th graders with blue eyes, 9 students are 8th graders
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Jasonkiln
Aug 2, 2022
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204
1
system
Find the ordered triple (p,q,r) that satisfies the following system:
p - 2q = 0
q - 2r = 8
p + r = 5
read more ..
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Guest
Aug 2, 2022
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204
2
probability
If three, standard, 6-faced dice are rolled, what is the probability that the sum of the face up integers is 18?
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Guest
Aug 2, 2022
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199
1
help plz
Each solution to x^2 + 5x + 8 = -14 can be written in the form a + bi where a and b are real numbers. What is a^2 + b^2?
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Guest
Aug 2, 2022
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213
2
pls help. im desperate.
What is the radius of the circle inscribed in triangle ABC if AB = AC=7 and BC=6? Express your answer in simplest radical form.
BuilderBoi
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Guest
Aug 2, 2022
0
265
5
+275
How many three-digit multiples of 5 have three different digits and at least one prime digit?
How many three-digit multiples of 5 have three different digits and at least one prime digit?
Contuing on from last time. there are 720 numbers that have atleast one prime digit **the 720 is not three different digits** The part that I am stuck
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Jasonkiln
Aug 2, 2022
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190
1
help trig
Point A is the terminal point of phi and point B is the terminal point of theta. Point A is in the first quadrant and point Bis in the second quadrant, while tan phi = 2 and tan theta = 6. Find the slope of AB.
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Guest
Aug 2, 2022
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197
1
which is biggest
Given a = 2^5, b = 3^4, c = 4^3, and d = 5^2, let
x = (a + b)(c + d)
y = (a + c)(b + d)
z = (a + d)(b + c)
Rank x, y, z from greatest to least, and express your answer as an ordered list.
read more ..
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Guest
Aug 2, 2022
0
176
1
Linear functions
You have linear functions p(x) and q(x). You know p(2)=3 and p(q(x))=4x-7 for all x. Find q(-1).
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Guest
Aug 2, 2022
0
224
3
+275
How many three-digit positive integers have at least one prime digit?
How many three-digit positive integers have at least one prime digit?
So I thought it would be easier to start counting the numbers that do not have any prime digits.
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Jasonkiln
Aug 2, 2022
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152
1
Sequences
There is a sequence of positive numbers such that and and
for .
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Guest
Aug 2, 2022
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212
2
Sequences
Let be an arithmetic sequence with and . For any positive number , define
.
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Guest
Aug 2, 2022
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195
1
quadratic
Let r and s be the roots of 3x^2 + 4x + 12 = 2x^2 - 7x + 1. Find r^2 + s^2.
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Guest
Aug 2, 2022
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199
1
system
For which value(s) of k does the following system have no solution?
4x - 6y = -2
kx - 9y = 3
read more ..
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Guest
Aug 2, 2022
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188
1
+275
Help please
Suppose that a and b are integers with a < b How many numbers are in the list a, a+1, a+2.... b?
So I thought about doing a-(a-1) to get the first number to one so the list becomes 1,2,3 but i soon realized that does not work
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Jasonkiln
Aug 2, 2022
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186
1
parabola
The graph of a certain quadratic y = ax^2 + bx + c is a parabola with vertex (-4,0) which passes through the point (1,75) What is the value of a?
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Guest
Aug 2, 2022
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192
1
help algebra
Let A and B be real numbers such that A/(x - 5) + B/(x + 1) = (12x + 22)/(x^2 - 4x - 5). What is A+B?
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Guest
Aug 2, 2022
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192
1
Functions
If t(x) = 9+2f(x) and $f(x) = x^2+3, then what is t(f(-2))?
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Guest
Aug 2, 2022
+1
212
3
Remainder
What is the remainder when 2 + 4 + 6 + ... + 100 + 102 + 104 is divided by 7?
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Guest
Aug 2, 2022
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192
1
circles
A rose garden is formed by joining a rectangel and a semicircle. The rectangle is 35 ft long and 35 ft wide. if the gardner wants to build a fence around the gardner, how many feet of fence are required?
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Guest
Aug 2, 2022
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