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4 years ago

Which equation has exactly one solution?

Mathematics

1 answer:

Alina [70]4 years ago

5 0

I’m pretty sure that it’s b

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A cube with 15-cm-long sides is sitting on the bottom of an aquarium in which the water is one meter deep. (Round your answers t

Ghella [55]

Answer:

0.204 KN

Step-by-step explanation:

Height above cube h= (100-15)/100 = 0.85 m

a) force on the top of the cube = ρgh×area

= 1000×9.81×0.85 = 8330 N/m^2

= 833 KN/m^2*0.15^2= 0.187 KN

b) Force on one side of the cube

on top = 8.33 KN/m^2

at bottom ρgh

= 1000×9.8×100/100

=9800 N/m^2

Net Force = area of the diagram

= 8.33×(15/100)^2 + 1/2(9.8-8.33)×(15/100)^2

= 0.204 KN

4 0

4 years ago

What is the solution to 2/3x +8/3=2x

Anika [276]

Answer:

Step-by-step explanation:

2/3x + 8/3 = 2x

multiplicate each by 3 : 2x + 8 = 6x

Put all the x on the same side : 8 = 4x

divide each by 4 : 2 = x

x = 2

5 0

4 years ago

A theater contains 500 seats. student tickets are $4 each and adult tickets are $5 each. the manager must sell at least 200 stud

Novay_Z [31]

50 tickets for the students
20 for the adults tickets to make profit

7 0

3 years ago

What is the equation of a line perpendicular to

Valentin [98]

Since the given line

$y = \frac{ 1}{4} x - 3$

has slope
$= \frac{1}{4}$

The equation of the line perpendicular to it must have a slope which is the negative reciprocal of ,
$\frac{1}{4}$
The slope of the perpendicular line
$= \frac{ - 1}{ \frac{1}{4} } = - 4$
Using the slope intercept form,

$y = mx + c$
We substitute
$- 4$
This implies that,
$y = - 4x + c$
Since

$(-2,4)$
lies on this line , it must satisfy its equation.

That is

$4 = - 4( - 2) + c$

This implies that

$4 = 8 + c$
$4 - 8 = c$
$c = - 4$

The line therefore has equation,

$y = - 4x - 4$

3 0

3 years ago

What is the least common multiple of:<br> 1-x^2, and (x-1)^3

Len [333]

Answer:

Step-by-step explanation:

1-x²=-(x²-1)=-(x-1)(x+1)

L.C.M.=(x+1)(x-1)³

4 0

4 years ago