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3 years ago

Help plssssss I really need the answer asap! I’d really appreciate it

Mathematics

2 answers:

denis-greek [22]3 years ago

8 0

I think it’s 6.70820393 but it could be wrong

bekas [8.4K]3 years ago

4 0

I am almost positive it is 6.70820393

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Choose all of the system of equations which have no solution. x + 2y = 10 and 2y = 6 + 5x x = 8 − y and y = 6 + 5x 3x + 2y = 5 a

nirvana33 [79]

Answer:

Third and fourth systems

Step-by-step explanation:

Let's check the first system:

x + 2y = 10

2y = 6 + 5x

Isolating x in the first equation, we have x = 10 - 2y. Applying that in the second equation we have:

2y = 6 + 5(10-2y)

2y = 6 + 50 - 10y

12y = 56

y = 4.6667

from the first equation, we have that x + 2*4.6667 = 10 -> x = 0.6667

So this system has a solution.

Checking now the second system:

x = 8 − y

y = 6 + 5x

using y from the second equation in the first equation, we have:

x = 8 - 6 - 5x

6x = 2

x = 0.3333

then, in the second equation:

y = 6 + 5*0.3333 = 7.6666

This system also has a solution

Third system:

3x + 2y = 5

2y = 6 − 3x

The second equation can be rewritten as:

3x + 2y = 6

We can see from both equation that the same expression (3x + 2y) has two values (5 and 6). So we can't solve this system.

Fourth system:

3x = 2 − 4y

4y = 7 − 3x

The first equation can be rewritten as 3x + 4y = 2

The second equation can be rewritten as 3x + 4y = 7

We can see from both equation that the same expression (3x + 4y) has two values (2 and 7). So we can't solve this system.

So, the systems that have no solution are the third and fourth systems

3 0

3 years ago

-9x-5=-95<br> Please help!

lesantik [10]

-9x - 5 = -95

-9x = -95 + 5

-9x = -90

x = -90/-9

x = 10

Please mark as the Brainliest!

7 0

3 years ago

√108³ will give brainliest and 1000 points

Reil [10]

Answer:

1122.3689233

Step-by-step explanation:

108x108x108= 1,259,712

1,259,712 = 1122.3689233

hope it helps :D

Sincerely,

rb5994

.p.s plz click thx if this was helpful

5 0

3 years ago

Read 2 more answers

These two cylinders are congruent. cylinder a has a radius of 4 centimeters. cylinder b has a volume of 176π cubic centimeters.

Dafna11 [192]

The height of cylinder b is 11 cm.

<h3>How to measure the volume of a cylinder?</h3>

The volume of the cylinder is related to the capacity of this geometric figure. Remember that the cylinder or circular cylinder is an elongated and rounded geometric solid.

The formula for the volume of a cylinder is given by:

$V = \pi.r^2.h$

Where:

V: volume
π (Pi): 3
r: radius
h: height

In this case, as the cylinders are congruent, both will have the same radius, thus:

$V = \pi.r^2.h\\176\pi=\pi(4)^2(h)\\h=11$

See more about height of cylinder at brainly.com/question/14165005

#SPJ4

4 0

2 years ago

Read 2 more answers

Find the smallest composite number that has no prime factors less than 10.

MAVERICK [17]

Answer:

121.

Step-by-step explanation:

The lowest prime number after 10 is 11.

So it must be 11^2 = 121.

3 0

3 years ago