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All Questions
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232716 Questions
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343
1
Sweety’s mother
Sweety’s mother is 12 years more than twice Sweety’s age. After 8 years, she will be 20 years less than three times Sweety’s age. Find Sweety’s age and Sweety’s mother’s age?
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Guest
Feb 20, 2021
0
412
1
graphing
What is the equation of line b?
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Guest
Feb 20, 2021
+1
335
0
+18
Vector Transformation with Matrix
V= <-9,2> is transformed using the transformation matrix A= [ -4 1 ]
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cheetahhh
Feb 20, 2021
0
638
1
angles
One interior angle of a convex polygon (a convex polygon is a polygon where all anglesare less than 180 degrees) is 120 degrees. All the other angles are 130 degrees. How many sides does the polygon have?
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Guest
Feb 20, 2021
+1
461
0
+18
Polar Equation with a Table
Consider the polar equation r=3sin(2theta)
(a) Complete the tables for the given values of theta. Round to the nearest tenth as needed.
(b) Graph the equation Theta 0 pi/6 pi/4 pi/3 pi/2 2pi/3
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cheetahhh
Feb 20, 2021
0
738
2
+1679
ratio
Cranberry juice is made with a 16:3:1 ratio of water:sugar:cranberries. How much water,in gallons, how much water is needed in order to make three gallons of cranberry juice? Express your answer as a common fraction.
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wiseowl
Feb 20, 2021
0
766
2
+1679
percent
The population of a bacteria colony increased by p% each day for 4 days in a row.The final population after 4 days was 5.0625 times the original population. What is p?
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wiseowl
Feb 20, 2021
0
520
1
+1679
clock problem
What is the number of degrees the minute hand of a clock moves between 10:21 pm and10:34 pm on the same day?
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wiseowl
Feb 20, 2021
0
405
1
pls help
Calculate the unknown missing angle measures.
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Guest
Feb 20, 2021
0
346
1
complex root
If 3 + 2i is a solution for x^2 + bx + c = 0, where b and c are real numbers, then what are b and c?
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Guest
Feb 20, 2021
0
587
3
help
Given the equation a+b = 30 , where a and b are positive integers, how many distinct ordered-pair solutions (a,b) exist?
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Guest
Feb 20, 2021
0
444
1
equation of line
Find the equation of the line that is parallel to the line 4x - 2y = 8 and which passes through the point (0,-8).
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Guest
Feb 20, 2021
0
380
1
+1679
rotation
The point Z(-3,-2) is rotated 90 degrees clockwise around the origin. What are the coordinates of the resulting point, Z'?
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wiseowl
Feb 20, 2021
0
383
1
+1679
interest
Shane deposited 60 dollars in a savings account, earning 5% interest, compounded annually.
To the nearest cent, how much interest will he earn in 3 years?
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wiseowl
Feb 20, 2021
0
430
1
help plz
Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Together they charged a total of 2150 dollars. What was the rate charged per hour by each mechanic if the sum of the two rates was 145 dollars
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Guest
Feb 20, 2021
0
267
1
help please
Find all complex numbers z such that z^4 = -4
Please show your work, I want to understand the problem
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Guest
Feb 20, 2021
0
406
3
Angle help please
Two lines p and q intersect at X at an angle of 39 degrees. Let A be a point inside the 39 degree angle formed by p and q. Let B be the reflection of A through line p, and let C be the reflection of A through line q. Find angle BAC, in degrees.
I
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Guest
Feb 20, 2021
0
329
1
counting
English has letters that can be vowels. This includes Y, which can be either a consonant or a vowel; for this problem, we'll consider Y a consonant. The other English letters always consonants. How many two-letter "words" can
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Guest
Feb 20, 2021
0
325
1
Help is greatly appreciated
Let $\alpha$ and $\beta$ be the roots of $x^2 - 2x - 1 = 0.$ Let $p(x)$ be a cubic polynomial such that \begin{align*} p(\alpha) &= 2 \alpha, \\ p(\beta) &= 2 \beta, \\ p(\alpha + \beta) &= 2 \alpha + 2 \beta, \\ p(\alpha \beta) &= 4. \end{align*}Find
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Guest
Feb 20, 2021
0
320
1
help pls
Recall that an integer is said to be a divisor of an integer if is also an integer. For how many integers between and inclusive is the product of the divisors of negative?
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Guest
Feb 20, 2021
0
301
3
please help
Find all complex numbers z such that z^4 = -4
Form should be in a + bi
read more ..
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Guest
Feb 20, 2021
0
468
1
+130
evaluate question :(
Evaluate (-5+2i)/(1+7i). Write your answer ini the form a+bi.
i=
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mintjellyxd
Feb 20, 2021
0
432
1
+130
mistype so reupload of old question
Let f(x)=x^2+1 and g(x)=x-3. Write an expression for f(g(x))
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mintjellyxd
Feb 20, 2021
0
430
2
Help!!!
A stick has a length of units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are longer than unit?
Note: I am aware that this has been posted before, the solution
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Guest
Feb 20, 2021
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