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Licemer1 [7]
3 years ago
8

How many solutions does the system have?

Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0

Answer:

none

Step-by-step explanation:

there is no solutions to this system

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What is the volume, in cubic inches, of the right rectangular prism shown below?
sergejj [24]

Answer:

450 cubic inches

Step-by-step explanation:

the formula to get volume is l×w×h. 12.5×4.5×8=450

7 0
3 years ago
1. Which other expression has the same value as (-14) - 8?​
ludmilkaskok [199]

Answer: −22

Step-by-step explanation:

=−14−8

=−14+−8

=−22

6 0
2 years ago
Let y′′′−9y′′+20y′=0. find all values of r such that y=erx satisfies the differential equation. if there is more than one correc
DerKrebs [107]

we are given

differential equation as

y'''-9y''+20y'=0

we are given

y=e^{rx}

Firstly, we will find y' , y'' and y'''

those are first , second and third derivative

First derivative is

y'=re^{rx}

Second derivative is

y''=r*re^{rx}

y''=r^2e^{rx}

Third derivative is

y'''=r^2*re^{rx}

y'''=r^3e^{rx}

now, we can plug these values into differential equation

and we get

r^3 e^{rx}-9r^2 e^{rx}+20re^{rx}=0

now, we can factor out common terms

e^{rx}(r^3 -9r^2 +20r)=0

we can move that term on right side

(r^3 -9r^2 +20r)=0

now, we can factor out

r(r^2 -9r +20)=0

r(r-5)(r-4)=0

now, we can set them equal

r=0

r-5=0

r=5

r-4=0

r=4

so, we will get

r=0,4,5...............Answer

4 0
3 years ago
Which of the following is a solution of the linear equation 4x + 3y = 16? * (1, 4) (2, 3) (1, 3) (2, 4)
rosijanka [135]

Answer:

(1,4)

Step-by-step explanation:

if u substitute these numbers u can find out that these numbers make the solution.

hope this helps

8 0
3 years ago
Arthur weighs 34 lb more than Lily. Their combined weight is 180 lbs less than four times Lily's weight. How much does Arthur we
mote1985 [20]
X = Lilys weight
x + 34 = Arthurs weight
4x - 180 = combined weight

x + x + 34 = 4x = 180
2x + 34 = 4x - 180
-2x           -2x
_________________
        34 = 2x -180
     +180        + 180
_______________
       214 = 2x
        107  = x  which is Lily's weight
         141 = x + 34 which is Arthur's weight
The total weight is 248

which is the answer that you get when you do 4(107) = 180 or
428 -180 = 248

5 0
3 years ago
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