All Questions ⁺⁰237779 Questions

0

116

1

+818

Quadrilateral

In convex quadrilateral $ABCD$, $AB=BC=13$, $CD=DA=10$, and $\angle D=60^\circ$. Points $X$ and $Y$ are the midpoints of $\overline{BC}$ and $\overline{DA}$ respectively. Compute $XY^2$ (the square of the length of $XY$).

maximum Aug 4, 2023

0

128

4

I'll probably solve this, but I'll take a long time.

How many different values can take for x?

Guest Aug 4, 2023

0

118

1

+818

driving speed

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 50 miles per hour instead, then I would have arrived 25 minutes earlier. How many miles did I drive?

maximum Aug 4, 2023

0

124

7

im bad at math

How many real solutions are there for x in the following equation: (x - 5x + 12)^2 + 1 = -|x|
Evaluate . Express your answer as an improper fraction.

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Guest Aug 4, 2023

0

124

3

pls help

Find x , given that

Guest Aug 4, 2023

0

79

1

+818

Help please

I need help to set up this proportion
In Linguistics $101,$ the ratio of the number of juniors to the number of seniors is $3:2$. When six more juniors join the class, and one senior drops the class, the ratio of the number of read more ..

maximum Aug 4, 2023

-1

132

2

+11

HELP count prob

Six children are each offered a single scoop of any of flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that some flavor of ice cream is selected by exactly read more ..

Cat57203 Aug 4, 2023

0

125

1

Pls help

The Bad News Bears are playing against the Houston Toros in a baseball tournament. The first team to win three games wins the tournament. The Bears have a probability of $\frac{2}{3}$ of winning each game. Find the probability that the Bears win the to read more ..

Guest Aug 4, 2023

+2

109

3

+15

help with combinations!!!!!

A volleyball team has 14 players, including a set of 3 triplets: Missy, Lauren, and Liz. In how many ways can we choose 6 starters if the only restriction is that not all 3 triplets can be in the starting lineup?

linghan Aug 4, 2023

0

123

1

+1348

Modular congruences

How many positive integers less than 1000 are congruent to 6 (mod 17)?

sandwich Aug 4, 2023

0

116

2

counting

Three distinct vertices of a regular 25-sided polygon are selected at random. What is the probability that the triangle formed by these three vertices contains the center of the polygon?

Guest Aug 4, 2023

0

105

1

+16

I do not know how to solve this

Kenny spent 1/4 of his money on a bag. He spent $120 on a belt and saved the rest. He spent twice as much money as what he saved. How much money did Kenny save?

whitewater7171 Aug 4, 2023

0

127

1

CPHILL IS BACK!!!!!

YAAAAAY!!!
Welcome back CPhill :)

Guest Aug 4, 2023

0

95

2

When simplified, 9x – (x + 1) is: 8x – 9x. 8x + 1. 8x – 1. None of the choices are correct.

When simplified, 9x – (x + 1) is: 8x – 9x. 8x + 1. 8x – 1. None of the choices are correct.

Guest Aug 4, 2023

0

136

2

Counting and Probability help

write the following expression as a single combination, so that k does not equal 1 and n-k does not equal 1.
(10 choose 4) + (10 choose 5) + (11 choose 5) + (12 choose 5) + ..... + (29 choose 5) + (30 choose 5)= n choose k read more ..

Guest Aug 4, 2023

0

99

1

+99

standard deviation

the mean of normally distributed test scores is 76 and the standard deviation is 3. if there are 170 test scores in the data sample, how many of them were in the 67 to 70 range?

WorldEndSymphony Aug 4, 2023

0

114

1

+37

Thks

There are 3 shoes racks in a shop. Rack A has 40% as many pairs of shoes as Rack B and Rack C. The total number of pairs of shoes in Rack A and Rack C is 75% as many as Rack B. After moving 42 pairs of shoes from Rack B to Rack A, both Rack B and A now read more ..

JCase8904 Aug 4, 2023

0

125

2

Help please

Grogg, Lizzie, Alex, Winnie, and Max each own a hat marked with the first letter of their name. All five hats are placed in a bag. Each beast then removes one hat from the bag in turn at random and places it on their head. Once this is done, what is the read more ..

Guest Aug 4, 2023

+1

27

1

+5

Help Please!

In triangle $ABC$, points $D$ and $F$ are on $\overline{AB},$ and $E$ is on $\overline{AC}$ such that $\overline{DE}\parallel \overline{BC}$ and $\overline{EF}\parallel \overline{CD}$. If $AF = 9$ and $DF = 3$, then what is $BD$?

FootyFrenzy Aug 4, 2023

0

122

3

+37

Whold numbers and fractions please help

In a storeroom, there are 30 blue balls, 48 green balls, some red balls Ind some white balls. There are 3 times as many green balls as red balls and 5 times as many blue balls as white balls.
(a) How many balls are there altogether?
(b) How read more ..

JCase8904 Aug 4, 2023

Aug 3, 2023

-1

90

2

+1348

Factorials

Can I get help with this?
How many zeroes are at the end of $42! + 10!$ ($42$ factorial plus $10$ factorial)? (Reminder: The number $n!$ is the product of the integers from $1$ to $n$. For example, $5!=5\cdot 4\cdot3\cdot2\cdot read more ..

sandwich Aug 3, 2023

0

83

1

+37

dvirdg

In a warehouse, there are two types of boxes: type X and type Y. The total number of boxes is 1200. Out of these, 3/4 of the boxes are type X, and the remaining boxes are type Y. Additionally, the difference between the number of type X boxes and type Y read more ..

JCase8904 Aug 3, 2023

0

128

4

help please!

The edges of a regular pentagon are colored red, blue, or green at random, so that each edge has an equally likely chance of being painted with any given color. What is the probability that in the resulting coloring, no two adjacent edges have the same read more ..

Guest Aug 3, 2023

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