Answer:
Step-by-step explanation:
I will assume that you meant: (-3/7)(y-28) - (1/21)y
Using the distributive property of multiplication, we get:
(-3/7)y + (3/7)(28) - (1/21)y
Let's first reudce the middle term. We get: 12
Then we have:
(-3/7)y + 12 - (1/21)y
Here there are two different denominators. We must combine the y terms. The LCD here is 21. Multiplying (-3/7)y by 21/21, we get the equivalent:
-9y
------ + 12 - (1/21)y
21
or:
-9y 21
------ + 12----- - (1/21)y
21 21
Combining the y terms, we get (-10/21)y:
-10y 252
------- + -------- = (1/21)(-10y + 252)
21 21
Answer: D) 20
<u>Step-by-step explanation:</u>
Use log rules to convert log into exponent:
Answer:
we say that they are inversely propotional
Step-by-step explanation:
Answer:
4x^2 - 6x^2 -6x + 3x +3 - 4
Step-by-step explanation:
The terms here involve x^0, x, x^2.
Write the x^2 terms first: 4x^2 - 6x^2;
then write the x terms: -6x + 3x; and
then write the constants: 3 - 4
and so we have, in descending powers of x,
4x^2 - 6x^2 -6x + 3x +3 - 4
