How many pizzas are needed for 40 students if 5 pizzas are needed for 25 students?

jerry says that cube with edges that measure 10 centimeters has a volume that is twice as much a cube with sides that measure 5

Yuki888 [10]

Because 10 is 5X more than 5 5+5=10

6 0

3 years ago

In order to answer the question correctly, please use the following image below:

siniylev [52]

Answer:

The value of m is 44° and n is 39°

Step-by-step explanation:

I'm sorry that I don't know how to explain so I have to show you the picture.

This chapter is under Circle Theorem.

4 0

2 years ago

Read 2 more answers

In a relative frequency distribution, what should the relative frequencies add up to?

VMariaS [17]

Answer:

A. 1

Step-by-step explanation:

The relative frequency is calculated by dividing the frequency of respective class to the total frequency. i.e R.f=f/∑f.

Hence, the relative frequencies can never be add up to total number of observations because it is computed from taking the proportion of frequency and total number of observation. The relative frequencies thus add up to 1.

For example we are given the frequencies for 3 classes as 6,4,2 and computed relative frequencies of these 3 classes are 6/12, 4/12 and 2/12.

Now adding these three relative frequencies 6/12+4/12+2/12=6+4+2/12=12/12=1.

Thus, the relative frequencies add up to 1.

8 0

3 years ago

Please, i need help :(

ollegr [7]

Answer:

First of all, find x from the Pythagorean theorem $a^2+b^2=c^2$ , which c is the hypotenuse.

$7^2+24^2=c^2$

$49+576=c^2$

$c^2=625$

c=25 or x=25

Next, we have to figure out the value of y and z. So, you need to use inverse trigonometric functions.

arctan $(\frac{7}{24})=y=16.3$ degrees. arctan $(\frac{24}{7})=z=73.7$ degrees.

All in all, the values are

x=25

y=16.3

z=73.7

Hope this helps and have a nice day!

7 0

2 years ago

Write a function using function notation to describe each situation. Find a reasonably domain and range for each function. A new

uysha [10]

Answer:

The answer is below

Step-by-step explanation:

The domain of a function is the set of all independent variables for the function while the range of a function is the set of all possible dependent variables.

Let x represent the number of newspaper lines and f(x) be the charges for advertisement. x is the independent variable and f(x) is the dependent variable.

Since the newspaper charges $3 per line for the first 4 lines plus a $20 fee to advertise, the function is given as:

f(x) = 3x + 20 for 0 < x < 4

But for more than four lines, the charges is given as:

f(x) = 12 + 20 = 32 4 < x < ∞

Therefore, the domain and range of the function is:

Domain = (0, ∞)

Range = (20, 32}

8 0

3 years ago