Answer:
19/21 or .90
Step-by-step explanation:
Common denominator.
Multiply 4/7 by 3 which equals to 12/21
Multiply 1/3 by 7 which equals to 7/21
Add 12/21 and 7/21
Answer: 19/21
Answer:
20260275
Step-by-step explanation:
the question is same as selecting 4 things from 150 things
= C(150,4). (nCr formula)
=[150×149×148×147]÷[4×3×2×1]
= 49×75×149×37
= 20260275
Answer:
Step-by-step explanation:
Use PEMDAS:
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)
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You foil for this one so it means that you multiply -3 with g, then multiply -3 with -f, you should get -3g+3f, but i'm not sure if i did it correctly if i did get it wrong then my bad
To solve for any equation with a variable the objective is to get the variable alone. First determine what operation is holding together the 42 and the y. There are no symbols between them so you can conclude they are being multiplied. What is the opposite operation to multiplication, or in other words what undoes multiplication? It’s division. So to get rid of the 42 you divide by 42. What you do to one side you must do to the other. So you main also divide 8256 by 42. So now that the y is alone you know that y=203.
