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3 years ago

Which expression is equal to 3(5+6) ?

2 answers:

Studentka2010 [4]3 years ago

4 0

First, you need to solve the expression. So distribute 3 to 5 and 6 which gives you 15+18 which equals 33. So the answer would be 15+18.

allsm [11]3 years ago

4 0

15 + 18 is the correct term

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Identify two statements that contradict each other.

Ira Lisetskai [31]

If ZM is an obtuse angle (greater than 90), then ZM and ZP will not add up to 90.

If ZP is 120, then ZM and ZP will not add up to 90.

There are multiple contradicting statements within this problem, as noted above.

Hope this helps!

6 0

2 years ago

Read 2 more answers

Solve the Differential equation (x^2 + y^2) dx + (x^2 - xy) dy = 0

natita [175]

Answer:

$\frac{y}{x}-2ln(\frac{y}{x}+1)=lnx+C$

Step-by-step explanation:

Given differential equation,

$(x^2 + y^2) dx + (x^2 - xy) dy = 0$

$\implies \frac{dy}{dx}=-\frac{x^2 + y^2}{x^2 - xy}----(1)$

Let y = vx

Differentiating with respect to x,

$\frac{dy}{dx}=v+x\frac{dv}{dx}$

From equation (1),

$v+x\frac{dv}{dx}=-\frac{x^2 + (vx)^2}{x^2 - x(vx)}$

$v+x\frac{dv}{dx}=-\frac{x^2 + v^2x^2}{x^2 - vx^2}$

$v+x\frac{dv}{dx}=-\frac{1 + v^2}{1 - v}$

$v+x\frac{dv}{dx}=\frac{1 + v^2}{v-1}$

$x\frac{dv}{dx}=\frac{1 + v^2}{v-1}-v$

$x\frac{dv}{dx}=\frac{1 + v^2-v^2+v}{v-1}$

$x\frac{dv}{dx}=\frac{v+1}{v-1}$

$\frac{v-1}{v+1}dv=\frac{1}{x}dx$

Integrating both sides,

$\int{\frac{v-1}{v+1}}dv=\int{\frac{1}{x}}dx$

$\int{\frac{v-1+1-1}{v+1}}dv=lnx + C$

$\int{1-\frac{2}{v+1}}dv=lnx + C$

$v-2ln(v+1)=lnx+C$

Now, y = vx ⇒ v = y/x

$\implies \frac{y}{x}-2ln(\frac{y}{x}+1)=lnx+C$

5 0

3 years ago

How many times grater is 3.4 times 10^5 and 2 times 10^3

tresset_1 [31]

Answer:

1.7*10^3 greater

Step-by-step explanation:

So just divide the two numbers

3.4 * 10^5/ 2 * 10^3

7 0

3 years ago

please solve the question and show your work so what property is illustrated by (6x3)x5= 6x(3x5) is it a. associative property b

algol13

A. Associative property, because even tho it's grouped with different numbers it still gets the same number/total

6 0

3 years ago

Can Someone Help me, pls?

vesna_86 [32]

Answer:

6.25 <7

Step-by-step explanation:

6 0

3 years ago

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