Answer:
21x² - 19x + 4
Step-by-step explanation:
Step 1: Write factors
(7x - 4)(3x - 1)
Step 2: FOIL (First Outside Inside Last)
21x² - 7x - 12x + 4
Step 3: Combine like terms
21x² - 19x + 4
Answer:
A chemical change
Step-by-step explanation:
Since in the question it is mentioned that the Miriam wants to paint her room green so she makes a mixture of yellow paint 50% and the blue paint 50% so here the change that arise at the time when she mixed the paint is the chemical change as the two paints are mix together that means chemical together to develop a chemical change
So the first option is correct
Answer:
The answer is 3
Step-by-step explanation:
Take the 7 and subtract it on both sides. Then you have 6r=6+7r
Now take 7r and subtract it on both sides. With that done you have -r=6
Divide both sides by -1 then your answer is there r= -6
23-4x=19
-23. -23
-4x. =. -4
——. ——
-4. -4
X. =. 1