Answer: 14.5 cm
Step-by-step explanation:
- The mid point theorem says that if line joining the midpoints of the any two sides , then this line becomes parallel to the third side and it becomes half of the third side.
Here , if consider firstly Q and R are mid-points of XW and XY then,
QR║WY such that
![WY=\timesQR=2\times2.93=5.86\ cm](https://tex.z-dn.net/?f=WY%3D%5CtimesQR%3D2%5Ctimes2.93%3D5.86%5C%20cm)
Similarly, RS║XW such that
![XW=2\timesRS=2\times2.04=4.08\ cm](https://tex.z-dn.net/?f=XW%3D2%5CtimesRS%3D2%5Ctimes2.04%3D4.08%5C%20cm)
Similarly, QS║XY such that
![XY=2\timesQS=2\times2.28=4.56\ cm](https://tex.z-dn.net/?f=XY%3D2%5CtimesQS%3D2%5Ctimes2.28%3D4.56%5C%20cm)
Now, the perimeter of the triangle= ![WY+XW+XY=5.86+4.08+4.56=14.5\ cm](https://tex.z-dn.net/?f=WY%2BXW%2BXY%3D5.86%2B4.08%2B4.56%3D14.5%5C%20cm)
Hey it’s 42 but carry the two to answer the two to my my
Let x be the amount of cocoa you use in the recipe.
then 4x is the amount of flour used, and 5x is the amount sugar used.
x+4x+5x= 550g
10x=550g
x=55g
So, you use 55g of cocoa, 220g of flour, and 275g of sugar.
hope this helps! :)
Answer:
A. Both functions are positive and decreasing on the interval.
Step-by-step explanation:
The table shows that f(x) decreases when x increases in the interval (0,3).
All the values of f(x) are positive in the interval (0,3).
For the exponential function that passes through the points (0, 27) and (3, 0), we also see that f(x) is decreasing when x increases: when x goes from 0 to 3, f(x) goes from 27 to 0.
Also all the values of f(x) are positive in the interval.
Then, both functions are positive and dereasing in the interval.
Answer:
He could use y+3x=-4
Step-by-step explanation:
When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21