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3 years ago

What is the value of 3-(-2)

Mathematics

2 answers:

Alinara [238K]3 years ago

7 0

Answer:

that is the answer

kap26 [50]3 years ago

6 0

Answer:

The answer should be 5

Step-by-step explanation:

if you subtract a negative then it becomes a positive so 3-(-2) would make the 2 positive becoming 3+2

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A ladder rises 20 feet for every horizontal change of 4 feet. What is the slope of the ladder? PLEASE HELP!!!!!!!!!!!!!

Vinil7 [7]

The slope is y/x 20/4=5 meaning as it rises 5 feet it will horizontaly change by 1 foot

3 0

4 years ago

Read 2 more answers

There are 2 Senators from each of 50 states. We wish to make a 3-Senator committee in which no two members are from the same sta

Morgarella [4.7K]

Answer:

a) rCn = 1176

b) 2352

Step-by-step explanation:

a)Each committee should be formed with 3 members ( no two members could be of the same state) then

Let´s fix a senator for any of the 50 states so in the new condition we need to combined 49 senators in groups of 2 then

rCn = n! / (n - r )! *r!

rCn = 49!/ (49 - 2)!*2!

rCn = 49*48*47! / 47!*2!

rCn = 49*48 /2

rCn = 1176

So we can choose in 1176 different ways a senator for a given state

b) To answer this question we have to note, that, 1176 is the number of ways a committee can be formed with senators of different sate (taking just one senator for state ) if we have 2 senators we need to multiply that figure by 2.

1176*2 = 2352

6 0

3 years ago

Tina multiplies 46 times 23 2/3. what is the product of this problem.

Alekssandra [29.7K]

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3 years ago

Do you wanna order pizza from Little Caesars every week for his coworkers one week he orders for thin crust pizzas in for deep d

meriva

Answer:

The cost of one thin crust pizza is $6.5

The cost of one deep dish pizza is $8

Step-by-step explanation:

Let x= cost of one thin crust pizza

Let y=cost of one deep dish pizza

If Four thin crust pizzas and four deep dish pizzas cost $58

4x+4y=58.............(i)

Six thin crust pizzas and three deep dish pizzas cost $63

6x+3y=63....................(ii)

We solve equations (i) and (ii) simultaneously

4x+4y=58.............(i)

6x+3y=63.............(ii)

To make the coefficeint of y the same, multiply (i) by 3 and (ii) by 4

[4x+4y=58] X 3

12x+12y=174

[6x+3y=63] X 4

24x+12y=252

Eliminating y by subtracting (iv) from (iii)

12x+12y=174............(iii)

24x+12y=252............(iv)

-12x=-78

x=6.5

Substitute x=6.5 into any of the equations, say (iv)

(24X6.5)+12y=252

156+12y=252

12y=252-156=96

y=96/12=8

x=6.5, y=8

4 0

4 years ago

Find the equation of the tangent line at the point where the curve crosses itself. x = t^3-6t, y = t^2.

Sphinxa [80]

Here is the solution for this specific problem:

Based from the graph, the curve will intersect itself at the y-axis, i.e. x = 0. 

t^3 - 6t = 0 
t(t^2 - 6) = 0 
t = 0 or t = ± √6 

dx/dt = 3t^2 - 6 
dy/dt = 2t 

dy/dx = 2t/(3t^2 - 6) 

@ t = 0, dy/dx = 0. 
x = 0, y = 0 

y = 0 

@ t = √6, dy/dx = 2√6/12 = √6/6 
x = 0, y = 6 

y - 6 = (√6/6) x 
y = (√6/6)x + 6 

@ t = -√6, dy/dx = -2√6/12 = -√6/6 
x = 0, y = 6 

y - 6 = (-√6/6) x 
y = (-√6/6)x + 6

So the equations of the tangent line at the point where the curve crosses itself are: y = (√6/6)x + 6 and y = (-√6/6)x + 6. I am hoping that these answers have satisfied your queries and it will be able to help you in your endeavors, and if you would like, feel free to ask another question.

4 0

4 years ago

What is the value of 3-(-2)​

What is the value of 3-(-2)