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3 years ago

Plzzzz help me!!

Mathematics

2 answers:

Airida [17]3 years ago

6 0

let

x---------> the length side of the box

y---------> the width side of the box

we know that

h=3 in

V=390 in³

volume of the box=x*y*3-------> 390=x*y*3-----> x*y=130------> equation 1

x=3+y------> equation 2

substitute 2 in 1

[3+y]*y=130-----> y²+3y=130------> y²+3y-130=0

using a graph tool------> to resolve the second order equation

see the attached figure

the solution is

y=10 in

x=3+y-----> x=3+10-----> x=13 in

the answer is

the width is 10 in

Vlad1618 [11]3 years ago

6 0

Answer:

Volume is length times width times height. So, you would need to do 9 times 3 (27) times 10 (270). Then, you would divide by 10, because it is scaled down by 1/10, leaving you with 27

Step-by-step explanation:

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I need help!! ASAP!!

ohaa [14]

Answer:your answer is c

Step-by-step explanation:if you want to be friends we can just friend me

6 0

3 years ago

F(x)=-2x-1 g(x)+2x^2-3x <br> f(5)=<br> g(-4)=

Ahat [919]

Answer:

f(5)= -11

g(-4)= 44

Step-by-step explanation:

to find the answer is really simple, whenever a question is asking to find F(x) it is another term for y. So its when y=5 then what is the y value for that term.

6 0

3 years ago

What does the equation -9+|m-8|<0 equal to?

UNO [17]

The equation $-9+|m-8|$ equals to $-1 < m < 17$

Step-by-step explanation:

We need to solve the equation:

$-9+|m-8|$

Solving:

Adding 9 on both sides

$-9+9+|m-8|$

Applying absolute rule: |u| < a and a > 0 then, -a < u < a

So, $-9 < m-8 < 9$

Now we have,

m-8>-9 and m-8 <9

m>-9+8 and m <9+8

m>-1 and m<17

Combining the intervals:

-1 < m < 17

So the equation $-9+|m-8|$ equals to $-1 < m < 17$

Keywords: Inequality, Absolute rule

Learn more about inequality at:

#learnwithBrainly

7 0

3 years ago

I am studying for a discrete math final and I do not understand the provided solution. Specifically, how to rationalize "C(12,10

vovangra [49]

Answer:

Step-by-step explanation:

Given is an equation in three variables

$x_1+x_2+x_3 =10$ where the three variables are non negative integers.

Since sum =10, and each integer has minimum value 1, we find that each variable can take values as 1,2,...8 only

If first variable is 1, the other two can be 1,8 or 2,7 or... 8,1 ... 8 ways

If first variable is 2, ... the other two can be 1,7 or 2,6 or..7,1 ... 7 ways

This will go up to first variable =8

Thus we have total number of solutions as

$8+7+6+5+...+1\\=36$

Thus possible solutions are 36

5 0

4 years ago

What is the molarity of a solution

Vika [28.1K]

Answer:

0.670. M

Step-by-step explanation:

Molarity can be expressed like this:

molarity = number of moles /volume (L)

We know the volume, which is 2.37 L , but we need to find the number of moles. We can do this by dividing 67.3 g by the molar mass of L i C l :

number of moles = mass of sample /molar mass

number of moles = 67.3 g /(6.94 + 35.45) g/mol = 67.3 g /42.39 g/mol

number of moles = 1.59 mol

molarity = 1.59 mol /2.37 L = 0.670. M

7 0

3 years ago