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Snowcat [4.5K]
3 years ago
12

Evaluate the expression: x^2+2x−xy when x = 250 and y = −120

Mathematics
1 answer:
NikAS [45]3 years ago
5 0

Answer:

33000

Step-by-step explanation:

Substituting 250 for x and -120 for y, we get:

(250)^2 + 2(250) - (250)(120)  =  62500 + 500 - 30000, or

32500 + 500, or 33000

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Simplify x + 3x – 36.
Katena32 [7]

Hey there!!

Equation Given : x + 3x - 36

In order to solve this, we will need to combine the like terms.

What are like terms?

Like terms are terms which have the same variable, in the equation given, the variable mentioned is x and hence, the like terms are x and 3x.

Now, we will need to combine x and 3x.

Let's take x as 1x and 3x as 3x.

Now, we will need to add both these like terms.

1x + 3x

x will be common, we will need to add 1 and 3

1 + 3 is 4 and hence, 1x + 3x = 4x

Hence, the final equation would be :

4x - 36

Hence, the answer is option ( c )

Hope my answer helps!

5 0
3 years ago
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The opposites of the whole numbers from 35 to 45 on a number line
mr_godi [17]
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6 0
3 years ago
PLZ HELP ASAP!!
marin [14]

Answer:

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Step-by-step explanation:

If all the scores of n students are the same, say x, then the average is

x*n/n, which is of course x.

5 0
3 years ago
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The sum of two numbers is 17 and their differance is 3
docker41 [41]

Answer:

10 and 7 are the numbers

Step-by-step explanation:

Let the number be x and y, ATQ, x+y=17 and x-y=3, solving it we will get x=10 and y=7

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2 years ago
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The area of a rectangle is 2/5 square inches. The width is 4/7 inches. What is the length?
Salsk061 [2.6K]

7/10

Step-by-step explanation: Your welcome

L*W=A

L*4/7=2/5

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