Ask question

Ask question

All categories

3 years ago

7

Lon

1 answer:

kotykmax [81]3 years ago

3 0

Answer:

sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would

You might be interested in

When do we use = and when do we use ~

kati45 [8]

When we use this = it means it is the exact
answer
When we use ≈ it means it is an estimated answer and not the exact answer Example 12.4684729572974729758328 ≈ 12

4 0

4 years ago

System w/Elimination<br>-2x-9y=-25<br><br>-4x-9y=-25

Lerok [7]

x=0 and y= $\frac{25}{9}$

Step-by-step explanation:

We need to solve the system by elimination and find values of x and y

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)$

Subtract eq(1) and eq(2)

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)\\+\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\---------\\2x=0\\x=0$

Now Multiply equation (1) by 2 and subtract with eq(2)

$-4x-18y=-50\\-4x-9y=-25\\+\,\,\,\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\--------\\-9y=-25\\y=\frac{-25}{-9}\\y=\frac{25}{9}$

So, x=0 and y= $\frac{25}{9}$

Keywords: system by elimination

Learn more about system by elimination at:

#learnwithBrainly

5 0

3 years ago

In 2007, there were more than 8.14 million cars for sale. The number of cars then decreased by 23% per year. Write an exponentia

tatuchka [14]

Answer:

In 2013 there were approximately 2.2 million cars for sale.

Step-by-step explanation:

Since the number of cars is decreasing by 23% per year, it is a decay model. This types of decay can be expressed in the following expression:

$cars(x) = cars(2007)*(1 - 0.23)^{x - 2007}$

Where x is the year, cars(2007) is the number of cars in 2007. Applying this data we have:

$cars(x) = 8.14*(0.77)^{x - 2007}$

If we want to know the number of cars in 2013, we need to apply that value to x and solve the expression.

$cars(2013) = 8.14*(0.77)^{2013 - 2007}\\cars(2013) = 8.14*(0.77)^{5} = 2.20332$

In 2013 there were approximately 2.2 million cars for sale.

7 0

3 years ago

Suppose that P(A) = 0.97. Which of the following is the best interpretation of this statement?

storchak [24]

We have that This equation simply state that P as a Function of A is equal to 0.97

From the question we are told that

P(A) = 0.97.

Generally

This equation simply state that P as a Function of A is equal to 0.97

i.e P is a Constant equation and A is a variable that changes P to 0.97

For more information on this visit

brainly.com/question/23366835?referrer=searchResults

7 0

3 years ago

True or false if a line and a circle are coplanar i am a line intersects the circle in exactly 1 point the line is called a tang

Fed [463]

The answer you need is true

4 0

4 years ago