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Post New Question
All Questions
+0
234777 Questions
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470
1
Help!!!!
A (not necessarily convex) 11-sided polygon can have at most how many right interior angles? Be sure to explain why an 11-sided polygon can have that number of right interior angles, and why it can’t have any more than that.
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Guest
Feb 24, 2021
0
626
1
angle
Find the indicated angle measure or arc measure.
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Guest
Feb 24, 2021
0
357
1
something weird
Find the ordered pair, (s, t) that satisfies the system
(s/2) - 3t = -1,
3t - 2s = 3
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Guest
Feb 24, 2021
-2
512
4
+218
Hard Question
Sam wrote the natural numbers from 1 to 5280 in order. What is the 6001 digit that Sam wrote.
Please explain everything in high detail.
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MathyGoo13
Feb 24, 2021
0
381
1
ages
Robert is twice as old as Charlotte. Five years ago his age was three times Charlotte's age. Find their present ages.
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Guest
Feb 24, 2021
0
531
6
Help As soon as possible ( CPhill )
I am so nervous if I get this one wrong even though I learned this a long time ago!
What is the GCF (Greatest common factor ) of 28 &24!
read more ..
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Guest
Feb 24, 2021
0
403
1
2 part question
Part A. Consider the system of equations
5x+y=31,
-3x+4y=-37
Solve the first equation for y in terms of x. Enter your answer in "y=..."
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Guest
Feb 24, 2021
0
564
1
Help appreciated!
Any help would be greatly appreicated!
1. Let A be the center of equilateral triangle DEF. A dilation, where the center is A, with scale factor -1/3, is applied to obtain triangle D'E'F'. Let P be the area of the region
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Guest
Feb 24, 2021
0
450
1
please help
The seats are divided into 40 sections. If hats are to be given in only 5 sections, what is the probability of a guest sitting in a winning section?
Hint (a):
How many total sections are there and how many sections will
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Guest
Feb 24, 2021
0
413
1
Pls Help
Given \[r = \frac{-b + \sqrt{b^2 - 4ac}}{2a} \text{ and } s = \frac{-b - \sqrt{b^2 - 4ac}}{2a}.\] What is the value of $r+s$, simplified in terms of $a, b$, and $c$?
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Guest
Feb 24, 2021
0
428
2
area
For the triangle below, determine the its area. Round as necessary to the nearest hundredth of a square unit.
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Guest
Feb 24, 2021
+6
527
3
+379
Help. ASAP. Thank you very much.
In right triangle , we have , , and . Find to the nearest tenth. You may use a calculator for this problem.
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calvinbun
Feb 24, 2021
0
420
6
join
meet.google.com/xoi-mcew-rrx
join
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Guest
Feb 24, 2021
0
370
1
Heat question
A wood box [k = 0.16 W/(m degree C) ] is kept at a constant temperature of 20 degrees C by an electric heater. The box is 0.4 x 0.4 x 0.4 m, and its walls are 2.5 cm thick. If the temperature outside the box is 4 degrees C, how much power will the heater
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Guest
Feb 24, 2021
0
429
1
counting problem
A group of students were asked to choose between blue and red, the colour they like 70% chose blue and 50% chose red. Each student in the group chose at least one of the two colours.
i. Represent the information on a Venn diagram.
ii
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Guest
Feb 24, 2021
0
471
1
+4
Is there a way to embed this calculator into my class page?
Is there a way to embed this calculator into my class page?
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jmarsden
Feb 24, 2021
0
378
2
algebra
If a/b = 2 and b/c = 4/3, what is the value of c/a? Express your answer as a common fraction.
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Guest
Feb 24, 2021
0
2030
3
A line passes through the point (-4,-1) and has a slope of -5/4. write an equation in slope intercept-form for this line
A line passes through the point (-4,-1) and has a slope of -5/4. write an equation in slope intercept-form for this line
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Guest
Feb 24, 2021
0
393
1
20 quarters
There is a total of 20 quarters stacked in four piles. The first pile has 3 fewer than the second pile. The second pile has 2 more than the third pile. The fourth pile has 1 more than the second pile. How many quarters are in the fourth pile?
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Guest
Feb 24, 2021
0
325
1
Pls help
Consider the ellipse \[\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1,\]where $a > b.$ As a function of $a$ and $b,$ find the radius of the smallest circle that contains the ellipse, is centered on the $y$-axis, and which intersects the ellipse only at $(0,b).$
read more ..
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Guest
Feb 24, 2021
-1
471
2
+206
rational expressions of polynomials
What is the sum of the $x$-values that satisfy the equation $5=\frac{x^3-2x^2-8x}{x+2}$?
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oliviapow06
Feb 24, 2021
+1
363
1
+501
graphing functions
If $f(x)=f(2-x)$ for all $x$, then what line is necessarily an axis of symmetry of the graph of $y=f(x)$? (Give the simplest equation of this line.)
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ellapow
Feb 24, 2021
+1
418
1
+501
Domain and Range
Suppose a function $f(x)$ is defined on the domain $[-8,4]$. If we define a new function $g(x)$ by
$$g(x) = f(-2x),$$
then what is the domain of $g(x)$? Express your answer in interval notation.
read more ..
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ellapow
Feb 24, 2021
0
368
1
Image uploading
I keep trying to insert a picture from the text book that has the question i need help with and it wont let me select a photo any help with this?
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Guest
Feb 24, 2021
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