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anyanavicka [17]
3 years ago
11

There are 13 students in a biology class and 12 students in a chemistry class. if there are 20 students in total, how many stude

nts are in both classes?
Mathematics
1 answer:
klemol [59]3 years ago
4 0

There are 5 students in both classes. Have a great day!

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Brand B snowblower has a 7 horsepower engine that is being advertised as a 40% larger engine than Brand A. How many horsepower d
stellarik [79]

Answer:

The answer is 4.2

Step-by-step explanation:

100%-40%=

60%

60%*7=

4.2

:)

6 0
3 years ago
In standard form: (x+5)(3x-1)-(x-4)^2
denpristay [2]
I hope this helps you



x.3x+x.(-1)+5.3x+5.(-1)-(x^2-2.4.x+16)


3x^2-x+15x-5-x^2+8x-16


2x^2+22x-21
6 0
3 years ago
Read 2 more answers
Yall still in school? i ended may 27th hbu?
juin [17]

Answer:

mine ended june 9th but i got summer school for 2 classes lol

7 0
3 years ago
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Suppose we went to choose 2 letters without replacement from 3 letters a b and c
vagabundo [1.1K]

Answer:

6 ways -  ab,ac, ba,bc and ca,cb

Step-by-step explanation:

We are given 3 letters a,b,c.

We can choose the first letter in 1 out of 3 ways.

Once the first letter has been chosen without replacement, we have two letters remaining. Another letter can be chosen from the 2 remaining letters in  2 ways. So the total number of ways of choosing the two letters is 3*2 = 6.

Listing out the possible set of choices:

Options include: ab,ac, ba,bc and ca, cb

3 0
3 years ago
considering the leading term of the polynomial function. what is the end behavior of the graph? describe the end behavior and pr
mario62 [17]

The leading term of polynomial function is the the term contain highest degree so here in the given question leading term is  -3x^5

and leading coefficient is the coefficient of the term with greatest exponent -3

RULES for End behaviour

we have following four cases

CASE1: Even degree and positive leading coefficient

x\rightarrow -\infty      f(x)\rightarrow \infty

x\rightarrow \infty        f(x)\rightarrow \infty

CASE2: Even degree and negative leading coefficient

x\rightarrow -\infty        f(x)\rightarrow -\infty

x\rightarrow \infty           f(x)\rightarrow -\infty

CASE3: Odd degree and positive leading coefficient

x\rightarrow -\infty          f(x)\rightarrow -\infty

x\rightarrow \infty              f(x)\rightarrow \infty

CASE4: Odd degree and negative leading coefficient

x\rightarrow -\infty              x\rightarrow \infty  

x\rightarrow \infty                  f(x)\rightarrow -\infty


Here in the given case we have odd degree and negative leading coefficient

x\rightarrow -\infty              x\rightarrow -\infty  

x\rightarrow \infty                  f(x)\rightarrow -\infty


3 0
3 years ago
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