All categories

3 years ago

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

You might be interested in

How do I solve this?

MrMuchimi

Answer:

X = 30 over 7

Step-by-step explanation:

multiply both sides of the equation by 6.

collect like terms.

divide both sides of the equation by 7.

solution should be

X = 30/7

5 0

3 years ago

One dozen golf balls have a mass of 551.16g.calculate the mass of one golf ball

yanalaym [24]

Answer: Each golf ball weights 45.93g

Step-by-step explanation:

divide 551.16 by 12

8 0

3 years ago

Read 2 more answers

Your company recently made a purchase of 25 identical tables. The purchase price after adding 5% sales tax was $1,706.25. You la

Aleksandr [31]

YOU WOULD SAVE ABOUT 385.31 CENTS OF THE ORIGINAL 1971.56 WITH THE TAXES FOR 25 TABLES

3 0

3 years ago

Read 2 more answers

.John has $40. He will use some of the money to buy books, and he wants to have at least $10 left to put in his savings account.

Crank

Answer:

The required inequality is $40-6b\leq 10$ .

Jhon can buy at most 5 books.

Step-by-step explanation:

Consider the provided information.

Part(A)

Let b represent the number of books John buys.

He wants at least $10 in his savings account which means if we subtract the cost of books from $40 we have at least $10 left.

$40-6b\leq 10$

The required inequality is $40-6b\leq 10$ .

Part(B)

$40-6b\leq 10$

$-6b\leq 10-40$

$b \leq\frac{30}{6}$

$b\leq 5$

Part(C): Jhon can buy at most 5 books.

3 0

3 years ago

Please help me ASAP

stellarik [79]

Answer:

<em>The Graph is shown below</em>

Step-by-step explanation:

<u>The Graph of a Function</u>

Given the function:

$\displaystyle y=g(x)=-\frac{3}{2}(x-2)^2$

It's required to plot the graph of g(x). Let's give x some values:

x={-2,0,2,4,6}

And calculate the values of y:

$\displaystyle y=g(-2)=-\frac{3}{2}(-2-2)^2=-\frac{3}{2}(-4)^2==-\frac{3}{2}*16=-24$

Point (-2,-24)

$\displaystyle y=g(0)=-\frac{3}{2}(0-2)^2=-\frac{3}{2}(-2)^2=-\frac{3}{2}*4=-6$

Point (0,-6)

$\displaystyle y=g(2)=-\frac{3}{2}(2-2)^2=-\frac{3}{2}(0)^2=0$

Point (2,0)

$\displaystyle y=g(4)=-\frac{3}{2}(4-2)^2=-\frac{3}{2}(2)^2=-\frac{3}{2}*4=-6$

Point (4,-6)

$\displaystyle y=g(6)=-\frac{3}{2}(6-2)^2=-\frac{3}{2}(4)^2=-\frac{3}{2}*16=-24$

Point (6,-24)

The graph is shown in the image below

8 0

2 years ago