All Questions ⁺⁰237641 Questions

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666

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?

Guest Nov 13, 2020

0

506

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 read more ..

Guest Nov 13, 2020

+6

609

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 ?

mobro Nov 13, 2020

0

776

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?

read more ..

Guest Nov 13, 2020

0

3916

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?

Guest Nov 13, 2020

0

552

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 read more ..

Guest Nov 13, 2020

0

940

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 read more ..

Guest Nov 13, 2020

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938

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!
read more ..

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Guest Nov 13, 2020

0

642

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 read more ..

TacoBell Nov 13, 2020

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641

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?

read more ..

Guest Nov 13, 2020

+1

736

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

752

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).

Guest Nov 13, 2020

+1

369

0

math

Awat
withdraws
$11 read more ..

Guest Nov 13, 2020

+1

415

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.

Guest Nov 13, 2020

+1

480

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 read more ..

Guest Nov 13, 2020

+1

602

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.

Guest Nov 13, 2020

+1

988

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? read more ..

Guest Nov 13, 2020

+1

345

0

90% confidence interval

Product 1: $136
Product 2: $68
Product 3: $61
Product 4: $19 read more ..

Guest Nov 13, 2020

+1

685

2

rewrite without fractions

3-2/3x=2/5 and without decimal

Guest Nov 13, 2020

+1

515

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, read more ..

Guest Nov 13, 2020

Nov 12, 2020

+1

577

1

through: (-4,2), perp. to y=4/7x+5

through: (-4,2), perp. to y=4/7x+5

Guest Nov 12, 2020

+1

552

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 read more ..

Guest Nov 12, 2020

+1

560

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).

Guest Nov 12, 2020

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