All categories

3 years ago

In a math class with 23 students, a test was given the same day that an assignment

Mathematics

1 answer:

ddd [48]3 years ago

3 0

Answer:

Step-by-step explanation:

23 students -15 students =8students

You might be interested in

Find sin theta if cot theta = -2 and cos theta < 0

Katarina [22]

cot(θ) = cos(θ)/sin(θ)

So if both cot(θ) and cos(θ) are negative, that means sin(θ) must be positive.

Recall that

cot²(θ) + 1 = csc²(θ) = 1/sin²(θ)

so that

sin²(θ) = 1/(cot²(θ) + 1)

sin(θ) = 1 / √(cot²(θ) + 1)

Plug in cot(θ) = -2 and solve for sin(θ) :

sin(θ) = 1 / √((-2)² + 1)

sin(θ) = 1/√(5)

6 0

3 years ago

The variables x and y are related proportionally. when x= 4 ,y=10 . find y when x=18

egoroff_w [7]

45. divide the first set of x and y by 2 then multiply by 9 to get 45 for y and 18 for x

7 0

3 years ago

Read 2 more answers

The lengths, in minutes, of the movies currently showing at a movie theater are shown in the data set. Create a histogram

alexdok [17]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the required lengths are not given.

I will use the following data set to answer the question.

$Dataset: 35, 51, 39, 42, 68, 62, 32, 59$

First, is to determine the range of the dataset

$Range = Highest - Least$

$Range = 68 - 32$

$Range = 36$

Next, we will make use of 4 classes. So, we divide range by 10 to get the number of class. 10 represents the interval

$Class= Range/10$

$Class = 36/10$

$Class = 3.6$

$Class \approx 4$

So, we use 4 classes

Plot the frequency distribution table as follows:

$\begin{array}{ccc}{Intervals} & {Observations} & {Frequency} & {31-40} & {32,35,39} & {3} & {41-50} & {42} & {1} & {51-60} & {51,59} & {2} & {61-70} & {62,68} & {2}\ \end{array}$

See attachment for histogram

5 0

3 years ago

for each problem, define the variable, write and inequality and find the solution. Ian needs to save at least $85.00 for a new p

tresset_1 [31]

Answer:

he'll need to save for 5 weeks to get $85

Step-by-step explanation:

hope this helps :)

6 0

3 years ago

What is make a ten to add 7+4=

sergiy2304 [10]

7+4=11 if that is your question not 100% sure what you are asking.

3 0

3 years ago

Read 2 more answers