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All Questions
+0
232936 Questions
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607
3
Let ABC be a right triangle such that B is a right angle
Let ABC be a right triangle such that B is a right angle. A circle with diameter of BC meets side AC at D. If the area of ABC is 150 and AC = 40 then what is BD?
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Guest
Nov 13, 2020
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455
1
Each week, between 30 and 50 students show up for an archery class
Each week, between 30 and 50 students show up for an archery class run by Betty and Wilma. Usually the students break up into groups of equal size for target practice. However, this week, Betty noticed that she could not break the students up into multiple
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Guest
Nov 13, 2020
+6
536
1
+55
I need some help..
Hi, may I please have some help on the following problem? Thanks so much!
Let , , and be points such that If , , then what is the sum of the coordinates of ?
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mobro
Nov 13, 2020
0
734
1
Seven points are evenly spaced out on a circle
Seven points are evenly spaced out on a circle and connected as shown below to form a 7-pointed star. What is the sum of the angle measurements of the seven tips of the star, in degrees?
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Guest
Nov 13, 2020
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3887
4
During bowling practice, Marley rolled 14 strikes out of 70 attempts. What percent of Marley’s attempts were strikes?
During bowling practice, Marley rolled 14 strikes out of 70 attempts.
What percent of Marley’s attempts were strikes?
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Guest
Nov 13, 2020
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478
1
Trapezoid ABCD has vertices
Trapezoid ABCD has vertices A(-1,0), B(0,2), C(m,4) and D(k,0), with m > 0 and k > 0 . The line y = -x + 4 is perpendicular to the line containing side CD , and the area of trapezoid ABCD is 36 square units. What is the
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Guest
Nov 13, 2020
0
874
1
how many students are there
You know there are 30 people in your math class. If you take a random sample of 100 people at a school assembly and 5 of them are in your math class, how many students would you expect there to be total in the school?You know there are 30 people in your
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Guest
Nov 13, 2020
0
891
6
Question
A circle of radius 8 is inscribed in an isosceles trapezoid. The length of the larger base of the trapezoid is 20. Find the length of the shorter base.
I got 12 4/5 but I am still confused so if anyone can explain, that would be great!
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Guest
Nov 13, 2020
0
573
2
+210
Help (Science)
So I have some data:
Ball-bearing diameter (cm) TEST 1 TEST 2 TEST 3 MEAN 1.4 2.1 2.0 1.9 2.0 1.6 2.9 3.0 3.0 3.0 1.8 5.8 6.2 7.9 ? 2.0 11.1 11.3 11.1 11.2 2.2 19.7 19.8 20.0 19.8 P.S with the question mark, I'm not sure what it
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TacoBell
Nov 13, 2020
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592
1
In the figure, point A is the center of the circle, the measure of angle RAS is 74
In the figure, point A is the center of the circle, the measure of angle RAS is 74 degrees, and the measure of angle RTB is 23 degrees. What is the measure of minor arc BR, in degrees?
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Guest
Nov 13, 2020
+1
664
6
Help! thanks so much:)
Determine the residue of Your answer should be an integer in the range .
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Guest
Nov 13, 2020
+1
656
1
Find the area of a triangle with side lengths
Find the area of a triangle with side lengths 13, 17, and 12*sqrt(3).
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Guest
Nov 13, 2020
+1
303
0
math
Awat
withdraws
$11
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Guest
Nov 13, 2020
+1
343
1
The medians AD, BE, and CF of triangle ABC intersect at the centroid G
The medians AD, BE, and CF of triangle ABC intersect at the centroid G. The line through G that is parallel to BC intersects AB and AC at M and N , respectively. If the area of triangle AGM is 144, then find the area of triangle AGN.
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Guest
Nov 13, 2020
+1
413
1
The regular price of a large bag of cat food is . Ike bought a bonus bag with more than the large bag, and the bonus bag was on sale
The regular price of a large bag of cat food is . Ike bought a bonus bag with more than the large bag, and the bonus bag was on sale for . Ike then used a " off coupon" when purchasing the bonus bag. What fraction
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Guest
Nov 13, 2020
+1
529
1
A point P is randomly selected from the square region
A point P is randomly selected from the square region with vertices at (2,2), (2,0), (0,2), (0,0). What is the probability that P is within one unit of the origin? Express your answer as a common fraction in terms of pi.
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Guest
Nov 13, 2020
+1
920
1
You have 5 red shirts, 5 green shirts
You have 5 red shirts, 5 green shirts, 4 pairs of pants, 7 green hats and 9 red hats, all of which are distinct. How many outfits can you make consisting of one shirt, one pair of pants, and one hat without having the same color of shirts and hats?
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Guest
Nov 13, 2020
+1
272
0
90% confidence interval
Product 1: $136
Product 2: $68
Product 3: $61
Product 4: $19
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Guest
Nov 13, 2020
+1
624
2
rewrite without fractions
3-2/3x=2/5 and without decimal
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Guest
Nov 13, 2020
+1
448
1
Confused about this inequality
I'm trying to solve the inequality 25x^2+16<40x.
I first rearrange the inequality to 25x^2-40x+16<0
Then I factor, resulting in (5x-4)^2<0
But here is where I get confused. I know the answer is that there are no real solutions,
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Guest
Nov 13, 2020
Nov 12, 2020
+1
501
1
through: (-4,2), perp. to y=4/7x+5
through: (-4,2), perp. to y=4/7x+5
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Guest
Nov 12, 2020
+1
498
1
A weather forecast predicts that for each day from Monday to Friday
A weather forecast predicts that for each day from Monday to Friday this week, there is a 40% chance of sun, a 20% chance of getting 4 inches of rain, and a 40% chance of getting 10 inches of rain. What is the expected value of the total number of inches
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Guest
Nov 12, 2020
+1
494
2
Find all A and B
Find all A and B such that (2x + 7)/(x^2 - 8x + 15) = A/(x - 3) + B/(x - 5) for all x besides 3 and 5. Express your answer as an ordered pair in the form (A, B).
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Guest
Nov 12, 2020
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