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Post New Question
All Questions
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234777 Questions
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684
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i'm not sure how to do this
G is the centroid of triangle ABC and D and E are the midpoints of line AB and line AC, respectively. line AG and line DE intersect at M. Find GM/GA.
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Guest
Feb 9, 2020
0
1
2958
2
+109
Angles C and D are acute angles of a right triangle.
Angles C and D are acute angles of a right triangle.
Given cosD=27 , which statement is true?
A: sin D = 5/7
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valval2205
Feb 9, 2020
0
642
1
+109
Trigonometric Ratio
Right △ABC has its right angle at C, BC=4 , and AC=8 .
What is the value of the trigonometric ratio?
COT B =
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valval2205
Feb 9, 2020
0
639
0
+109
Perimeter Question
In right △ABC , the right angle is at C, m∠A=30∘ , and AC=55‾√ units.
What is the perimeter of △ABC ?
valval2205
Feb 9, 2020
0
1230
1
+109
What is the measure of the smallest angel of the triangle?
The legs of a right triangle measure 5 inches and 9 inches.
What is the measure of the smallest angle of the triangle?
Enter your answer, rounded to the nearest tenth of a degree, in the box.
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valval2205
Feb 9, 2020
0
587
1
help
Ursula and Andre competed against each other in a swimming race. Ursula swam at a rate of 60 meters per minute and Andre swam at a rate of 48 meters per minute. Ursula gave Andre a 1-minute head start. How many minutes after Ursula started swimming did
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ElectricPavlov
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Guest
Feb 9, 2020
0
1633
2
+109
Word Problem
From her window, Sandra looks up to the top of a neighboring building at an angle of 36°. Her angle of depression to the bottom of the building is 22°.
The neighboring building is 200 feet away from the building Sandra is in.
How tall is
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valval2205
Feb 9, 2020
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688
2
There exists a real number k such that the equation has infinitely many solutions in t and s. Find k.
There exists a real number k such that the equation
has infinitely many solutions in t and s. Find k.
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Guest
Feb 9, 2020
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735
0
Biology
Which terms could describe a monocot flower?
a) four sepals, four petals
b) five sepals, ten petals
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off-topic
Guest
Feb 9, 2020
0
787
1
help
The sum of digits in a two-digit number is 14. If you double the reversed number and add the result to the original number, the sum would be 222. Find the original number.
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Guest
Feb 9, 2020
+1
2465
1
Please help!
Points $A$ and $B$ lie on a circle centered at $O$, and point $X$ is outside the circle such that $\overline{AX}$ and $\overline{BX}$ are tangent to the circle. If $\angle AXO = 26^{\circ}$, then what is the measure of minor arc $AB$, in degrees?
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Guest
Feb 9, 2020
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994
3
Please help, I'm sick and missed class...
I usually don't do this but I'm sick and missed class. Any hepl would be appreciate for this problem!
A circle is circumscribed around $ABCD$ as follows:
[asy]
pair pA, pB, pC, pD, pO;
pO = (0, 0);
pA = pO + dir(-40);
pB
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Guest
Feb 9, 2020
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521
1
help
On a certain hot summers, 256 people used the public swimming pool. The daily prices are $1.75 for children and $2.75 fo adults. The receipts for admission totaled to $551.50. How many children and adults swam that day?
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Guest
Feb 9, 2020
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942
3
+218
Help With Geometry!
A rectangular building is 4 meters by 6 meters. A dog is tied to a rope that is 10 meters long, and the other end is tied to the midpoint of one of the long sides of the building. Find the total area of the region that the dog can reach (not including the
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Rudram592
Feb 9, 2020
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553
1
help
The sequence a_n is defined by a_1 = 1/2 and a_n = a_{n - 1}^2 + a_{n - 1} for n >= 2. Prove that 1/(a_1 + 1) + 1/(a_2 + 1) + ... + 1/(a_n + 1) < 2 for all n >= 1.
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Guest
Feb 9, 2020
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542
2
help please
Find the sum (2^1)/(4^1 - 1) + 2^2/(4^2 - 1) + (2^4)/(4^4 - 1) + 2^8/(4^8 - 1) + .....
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Guest
Feb 9, 2020
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879
2
How many ways are there to divide a red bracelet, a yellow bracelet, a green bracelet, and a black bracelet among people if each person must
How many ways are there to divide a red bracelet, a yellow bracelet, a green bracelet, and a black bracelet among people if each person must receive exactly of the bracelets?
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Guest
Feb 9, 2020
0
1609
1
help
United Airlines' flights from Denver to Seattle are on time 50 % of the time. Suppose 9 flights are randomly selected, and the number on-time flights is recorded. Round answers to 3 significant figures.
(a) The probability that exactly 4 flights
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Guest
Feb 9, 2020
0
831
2
+96
math
1)
If the polynomial x^2+bx+c has exactly one real root and b=c+1, find the value of the product of all possible values of c.
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daddypig
Feb 9, 2020
0
757
1
help
The recommended angle for a firefighting ladder is 75 degrees. When a 110-foot ladder is put up against a building at this angle, the base of the ladder is about 28 feet from the building. The base of the ladder is 8 feet above the ground. How high on the
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Guest
Feb 9, 2020
0
403
1
help
There exist real numbers t and s such that Find t + s.
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Guest
Feb 9, 2020
0
547
1
Can't figure this one out.
The graph of the equation $y =ax^2 + bx + c$, where $a$, $b$, and $c$ are constants, is a parabola with axis of symmetry $x = -3.$ Find $\frac{b}{a}$.
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Guest
Feb 9, 2020
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673
1
Help with Counting Triples!
Find the number of ordered triples of integers (a, b, c) that form the side lengths of a triangle with positive area and perimeter 20.
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Guest
Feb 9, 2020
0
375
0
Stock Question
What is the average price of a share of stock in the Dow list when the DJIA is 10,800? (Assume that each $1 increase causes the average to increase by about 6.42 points and that the DJIA has 30 stock prices. Round your answers to the nearest cent.)
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Guest
Feb 9, 2020
0
623
2
I'm not sure how to do this
You are biking to the library. When you are 75% of the way there, you realize you forgot a book. So you turn around and head back. When you are of the way back you realize you don’t need the book, so you turn around again and bike 3.2 miles back to the
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Guest
Feb 9, 2020
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