Answer:
decimal form is -13.75 mixed fraction form -13 3/4
Answer:
32323232/100000000
Step-by-step explanation:
For the first brackets, You can subtract 4 from 8 and that makes 4. For the second bracket, you can add -8 and 4 which gets you 4. You have simplified what is inside the brackets, now you can add them together. 4 and 4 equals 8. So the answer is 8. You can figure it out other ways also
Answer:
x = 5/2, y = -1
x*y = 5/2*-1 = -5/2
Step-by-step explanation:
First we solve the system
2x-5y = 10
x = 5 + 5y/2
4x + 3y = 7
4(5 + 5y/2) + 3y = 7
20 +10y + 3y = 7
-13 = 13y
y = -1
Now go back to the other equation
2x - 5y = 10
2x - 5(-1) = 10
2x + 5 = 10
2x = 5
x = 5/2
Now we multiply x and y together
The value of f(5) is -37
<em><u>Solution:</u></em>
<em><u>Given function is:</u></em>
![f(x) = -2x^2+2x+3](https://tex.z-dn.net/?f=f%28x%29%20%3D%20-2x%5E2%2B2x%2B3)
We have to find the value of f(5)
To find the value of f(5), we have to substitute x is equal to 5 in given function
Plug in x = 5 in f(x)
![f(x) = -2x^2+2x+3\\\\f(5) = -2(5)^2+2(5) + 3\\\\\text{Simplify the above expression }\\\\f(5) = -2(25) + 10 + 3\\\\\text{Solve the above expression }\\\\f(5) = -50 + 10 + 3\\\\f(5) = -40 + 3 = -37](https://tex.z-dn.net/?f=f%28x%29%20%3D%20-2x%5E2%2B2x%2B3%5C%5C%5C%5Cf%285%29%20%3D%20-2%285%29%5E2%2B2%285%29%20%2B%203%5C%5C%5C%5C%5Ctext%7BSimplify%20the%20above%20expression%20%7D%5C%5C%5C%5Cf%285%29%20%3D%20-2%2825%29%20%2B%2010%20%2B%203%5C%5C%5C%5C%5Ctext%7BSolve%20the%20above%20expression%20%7D%5C%5C%5C%5Cf%285%29%20%3D%20-50%20%2B%2010%20%2B%203%5C%5C%5C%5Cf%285%29%20%3D%20-40%20%2B%203%20%3D%20-37)
Thus value of f(5) is -37