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3 years ago

Select the statement that describes the following expression 6 x (2 + 7) − 9. (4 points)

Mathematics

1 answer:

stiv31 [10]3 years ago

8 0

Answer:

Add all of them together

Step-by-step explanation:

You have to add the numbers and that gives you the sum

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Solve the initial value problem yy′+x=x2+y2‾‾‾‾‾‾‾√ with y(1)=8‾√. To solve this, we should use the substitution u= x^2+y^2 help

leva [86]

Looks like the equation is

$yy'+x=\sqrt{x^2+y^2}$

Substitute $u(x)=x^2+y(x)^2$ , so that $u'=2x+2yy'$ . Then the equation is the same as

$\dfrac{u'-2x}2+x=\sqrt u\implies u'=2\sqrt u\implies\dfrac{\mathrm du}{2\sqrt u}=\mathrm dx$

Integrate both sides to get

$\sqrt u=C\implies\sqrt{x^2+y^2}=C$

Given that $y(1)=\sqrt8$ , we have

$\sqrt{1^2+(\sqrt8)^2}=C\implies C=3$

so the solution is

$\sqrt{x^2+y^2}=3$

7 0

3 years ago

Classifying and ordering real numbers

Nata [24]

What's the question?

3 0

3 years ago

IF A LIQUID WEIGHS 2 POUNDS AND HAS A CApacity of 3 gallons. what is its density

umka21 [38]

Answer:

0.08 g/cm³

Step-by-step explanation:

We are given;

Mass of the liquid = 2 pounds

But; 1 pound = 453.592 g

Therefore, mass = 907.184 g

Volume of the liquid = 3 gallons

But; 1 gallon = 3785.41 cm³

Thus, volume = 11356.23 cm³

We are required to determine the density of the liquid;

We need to know that;

Density = Mass ÷ Volume

Therefore;

density of the liquid = 907.184 g ÷ 11356.23 cm³

= 0.0799 g/cm³

= 0.08 g/cm³

Thus, the volume of the liquid is 0.08 g/cm³

3 0

3 years ago

Y=x7 Please help I really confused

tigry1 [53]

Answer:

Where is the rest of the question? What is it asking?

Step-by-step explanation:

Well I guess if you want to change up the equation you can do 7 * X = Y

The * is just a multiplecation symbol if you didnt know

8 0

3 years ago

-7 1 11 10 29 6 3 6 3 6 common difference?

Hoochie [10]

9514 1404 393

Answer:

the listed sequences have no common difference(s)

Step-by-step explanation:

The differences in the first sequence are ...

8, 10, -1, 19

These values are not equal, so there is no common difference.

The differences in the second sequence are ...

-3, 3, -3, 3

These values are not equal, so there is no common difference.

_____

The difference is the difference between a term value and the one before.

1 -(-7) = 8

3 -6 = -3

7 0

3 years ago