Evaluate the expression for the given value of the variable(s). -x 2 - 4x; x = -3
A. 11
B. 3
C. -17
D. -1
Answers
-(-3)^2 -4(-3)
= - 9 + 12
= 3
answer is B. 3
Related Questions
Solve the value of x in the following proportion 6:9=x:72
PLEASE HELP MEEEE!!!!!!
Suppose you are traveling straight from Los Angeles, California to Albuquerque, New Mexico, stopping overnight in Flagstaff, Arizona. The distance from L.A. to Albuquerque is 810 miles, and the road connecting the three cities is a straight line. If the distance from L.A. to Flagstaff is 120 miles greater than the distance from Flagstaff to Albuquerque, how far is L.A. from Flagstaff, and how far is Flagstaff from Albuquerque?
A chef cooked seven kilograms of mashed potatoes for a dinnerparty. If the guests only ate three-quarters of the amount he cooked,how much did they eat?.....................plz hurry up
b. 2xy
c. x 2
d. -xy
e. 2x 2y
f. xy
Answers
Final answer:
The terms that are 'like' are: 2xy, -xy, and xy.
Explanation:
In mathematics, like terms are expressions that have the same variables raised to the same powers. When adding or subtracting like terms, you can combine them by adding or subtracting their coefficients while keeping the variables and exponents unchanged. This simplifies algebraic expressions and equations, making them easier to work with. For example, in the expression "3x + 2y - 5x + 7y," "3x" and "-5x" are like terms because they both have the variable "x" raised to the first power, so they can be combined to simplify the expression as "(-2x) + 2y + 7y."
The terms that are 'like' are: b. 2xy, d. -xy, and f. xy. To be 'like' terms, they must have the same variables raised to the same powers. In this case, all three terms have the variables x and y raised to the power of 1. The coefficients (the numbers multiplied by the variables) can be different. For example, 2xy, -xy, and xy are all 'like' terms because they have the same variables raised to the power of 1.
Learn more about Like terms here:
#SPJ12
Final answer:
In mathematics, like terms are terms that have the same variables and powers. In this case, the like terms are '2xy', '-xy', and 'xy' as they have the same variable part 'xy'.
Explanation:
In mathematics, like terms are terms whose variables have the same powers. The coefficients of these terms do not matter. Coefficients are the number part of the terms, while the variable part are the letters.
Looking at the options:
- a. xy^2
- b. 2xy
- c. x^2
- d. -xy
- e. 2x^2y
- f. xy
In these options, b. 2xy, d. -xy, and f. xy are like terms; they all have the same variable part 'xy'. The coefficients are different, but this does not affect their classification as like terms.
Learn more about Like Terms here:
#SPJ12
Answers
Answer:
25. Not a function because when you use vertical line test, you came across two points at the same time.
26. This is a function because when you vertical line test, you don't come across two points at the same time.
Step-by-step explanation:
Answers
Answers
x= -b +(or minus, both) √b² + 4ac
--------------------------------------------
2a
So, your numbers would be: a = 3
b = 13
c = 10
Then, solve: x = -13 +(or minus, both) √169 + 120
--------------------------------------------------
6
= -13 +(or minus, both) 17
------------------------------------
6
So, first do the plus: -13 + 17
--------------
6
= 2/3
Then do the minus: -13-17
------------
6
= 5
Your answer is: 2/3 and 5
( These problems always have two answers)
Answers
(2x-8x+x)-(6y+11y)+(9-14)
so know you can simply simplify what is in your Parentheses and once that is done it is going to look like this:
(-5x)-(17y)+(-5)
now it looks like that so that would be your answer could you simplified all of the like terms you can't do anything else to the problem!
So again your answer would look like:
(-5x)-(17y)+(-5)
~Good Luck~
Answers
Step-by-step explanation:
Since the last reflecting off glass