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Serjik [45]
3 years ago
9

Tính (x+1)^3-x(x-2)^2-1

Mathematics
1 answer:
Amanda [17]3 years ago
6 0

Answer:

7x^2-x

Step-by-step explanation:

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The sum of two numbers is twice their difference. The larger number is 2 more than twice the smaller
Alexandra [31]

The larger number is 6 and the smaller one is 2.


7 0
3 years ago
Shawns rentals charges $27.50 per hour to rent a surfboard and a wet suit. Darlas surf shop charges $23.25 per hour to rent a su
horrorfan [7]

Answer:

4 hours

Step-by-step explanation:

For this, we can set up an equation

We can name the total number of hours x.

So the price for Shawns rentals would be as follows:

27.50x

and Darlas surf shop would be:

23.25x+17

Now, we put these into an equation.

We are trying to find for what number of x will the charges be equal, so we can make this equation:

27.50x=23.25x+17

Now we get the variables on one side, and the numerical values on the other.

We can do this by subtracting 23.25x from both sides. (What you do to one side you must do to the other to keep the equation equal.)

4.25x=17

Divide both sides by 4.25.

x=4

You would rent the equipment for 4 hours to make the charges equal.

8 0
3 years ago
Can someone solve 2x+3=5x-2<br> step by step
musickatia [10]

Answer:

5/3

Step-by-step explanation:

2x+3=5x-2

Subtract 2x from both sides

3=3x-2

Add 2

5=3x

Divide by three

5/3=x

7 0
3 years ago
Read 2 more answers
Audrey and her family are discussing how to pay for her college
Elan Coil [88]

Answer:

$137.50

Step-by-step explanation:

11,000 x .15 (100-.85)=$1.650 amount she will have to pay annually.

$1,650/12months = $137.50 is minimum to save monthly.

4 0
3 years ago
The cost of 1 m ribbon is ₹ 75. Find the cost of 7/5 metres of ribbon​
Margaret [11]

Given that

The cost of 1 m ribbon = Rs.75

The cost of 7/5 m ribbon

→ (7/5)×75

→ (7×75)/5

→7×15

→₹ 105

The cost of 7/5 m ribbon is ₹105.

8 0
3 years ago
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