Please help 6n^2-5n^2-7n^2 simplify the expression

Answers

Answer 1

Answer: Since 6n^2 and −5n^2 are like terms then add −5n^2 to 6n^2 to get n^2.

n^2−7n^2

Since n^2 and −7n^2 are like terms then add −7n^2 to n^2 to get −6n^2.

The answer is −6n^2

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Prove that: ${ \left( { e }^{ \sqrt { { e }^{ \ln { \left( \frac { { 3 }^( 0 ) }{ \sin { \left( \frac { \pi }{ 2 } \right) } } \right) } } } } \right) }^{ \ln { \left( \sqrt { { e }^{ \ln { \left( \frac { { 3 }^( 0 ) }{ \sin { \left( \frac { \pi }{ 2 } \right) } } \right) } } } \right) } }=1$

Show your workings.

Answers

${ \left( { e }^{ \sqrt { { e }^{ \ln { \left( \frac { { 3 }^( 0 ) }{ \sin { \left( \frac { \pi }{ 2 } \right) } } \right) } } } } \right) }^{ \ln { \left( \sqrt { { e }^{ \ln { \left( \frac { { 3 }^( 0 ) }{ \sin { \left( \frac { \pi }{ 2 } \right) } } \right) } } } \right) } }=1\n{ \left( { e }^{ \sqrt { { e }^{ \ln { \left( \frac { 1 }{ 1} \right) } } } } \right) }^{ \ln { \left( \sqrt { { e }^{ \ln { \left( \frac { 1 }{1 } \right) } } } \right) } }=1\n$
${ \left( { e }^{ \sqrt { { e }^( \ln 1 ) } } \right) }^{ \ln { \left( \sqrt { { e }^( \ln 1 ) } \right) } }=1\n{ \left( { e }^( \sqrt 1 ) \right) }^{ \ln { \left( \sqrt 1 \right) } }=1\n{ \left( { e }^ 1 \right) }^( \ln 1 )=1\n e ^( \ln 1 )=1\n1=1$

How is the weight moving between X=6 and X=7.5?

Answers

Have you looked at the graph ? ?

The weight is at the rest position of the spring and moving upward
when x=6.

During the next 1.5 seconds, it moves up to the upward limit (the
'amplitude' of the oscillation) and then back down to the rest position.

When x=7.5, the weight is back at the spring's rest position, and moving
downward.

It would be moving 1.5 unp and down because the volume constant

What is the least common denominator of 1/3 and 5/11? 25 points

Answers

The leas common denominator is 33

What is the coefficient of the variable in the expression 4 − 3x − 7 + 6?

Answers

Answer:

the coefficient of the variable in the given expression is, -3

Step-by-step explanation:

Coefficient states that a number which is used to multiply a variable.

For example:

here, y is the variable and 4 is the coefficient.

As per the statement:

Given the expression:

$4-3x-7+6$

Here, x is the variable

By definition of coefficient, we have;

⇒-3 is the coefficient

Therefore, the coefficient of the variable in the given expression is, -3

the coefficient of the variable in the expression 4-3x-7+6 is 3

Solve by substitution
y=x+3
y=2x+5

Answers

y = x+3
y = 2x+5
x+3 = 2x+5
x+8 = 2x
x = 8

I think I did that right, anyway.

y=x+3
y=2x+5

1. Solve for the variable that is easiest to find.
In this case I will solve for x.
y=x+3
-3 -3
y-3=x

2. Now plug in (y-3) for x in the other equation.
y=2(y-3)+5 ~use distributive property
y=2y-6+5 ~combine like terms
y=2y-1
-2y=-2y
-y=-1 ~multiply both sides by -1
y=1

3. Since you have a value for y you can plug it in to solve for x.
y=x+3
1=x+3
-3 -3
-2=x

Answers:
y=1
x=-2

Write 3.45 as a reduced mixed number.

Answers

Answer:

3 $(9)/(20)$

Step-by-step explanation:

3.45=3 45/100

reduce and divided by 5

3 45/100= 3 9/20

Answer:

Step-by-step explanation:

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