2 1/4+1 2/4 = 3 3/4 this is how its done as 1/2 teaspoons is equivalent to 2/4
Use phot math it helps me hope it helps you
A dilation is a transformation that changes the size of a figure.
If the scale factor is k = 4:
( 2 , 4 ) → ( 2 · 4, 4 · 4 ) = ( 8, 16 )
The dilatation is an expansion when | k | > 1 ( 4 > 1 )
Answer: true.
I believe you are expected to simplify. To do this all you do is group like terms (x, x², x³ etc.) and then simplify the coefficients.
13. 10z + 7z - 19z² - 5z² - 17z
first you can rearrange and group like terms (remember the bring the sign in front of each term with it). I would do it like this:
-19z² - 5z² +10z + 7z - 17z
Now simplify the coefficients:
-24z² + 0z
you can omit the 0z and your simplified answer is
-24z²
Main thing to remember here is that z and z² cannot be simplified together, nor can any variable that has an exponent because the exponent makes them differ.
answer choice a
x^2 - 5x - 1 = 0
a=1, b=-5, and c=-1
next you plug in the numbers into the quadratic formula
-(-5) plus or minus the square root of (-5)^2 - 4(1)(-1)/ 2(1)
after you simply, you should get 5 plus or minus the square root of 29, which is answer choice a
