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expeople1 [14]
2 years ago
10

Timed help asap free 30 points after if correct find the value of the polynomial x^2-3xy+1/2 y^2 if x=3,y-2

Mathematics
1 answer:
BARSIC [14]2 years ago
7 0

Answer:

Ans: 29

Step-by-step explanation:

soln:

Given,

x=3 and y=-2

Now,

x^2-3xy+1/2y^2

= 3^2-3×3×(-2) +1/2(-2)^2

= 9+18+4/2

= (18+36+4) /2

= 58/2

= 29 Ans

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Luden [163]

Answer:

the cane

Step-by-step explanation:

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2 years ago
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1. The county fair charges $1.50 per ticket for the rides. Jermaine bought 20 tickets for the rides and spent a total of $48.75
Crazy boy [7]

We will use the amount Jermaine used to determine the admission price, since that is not given to us. The total amount he paid is equal to the sum of the price of the tickets and the admission price, a. We get the equation 48.75 = 1.50 * 20 + a (a = $18.75). Now, if a person comes to the fair and pays for only the rides and admission, we can form an equation in x, the number of ride tickets, and y, the total cost incurred by that person. y = 1.50x + 18.75. Here, y is the total cost, 1.50 is the price per ticket, x is the number of tickets and 18.75 is the admission cost.

7 0
2 years ago
(06.01 MC)
pogonyaev

RST is not a right triangle.

<h3>What is a Triangle ?</h3>

A Triangle is a polygon with three sides , three angles and three vertices.

It is given in the question that

triangle RST with coordinates R(2, 3), S(4, 4), and T(5, 0)

It has to be determined that if the triangle is a right angled triangle ,

If we plot the triangle on the coordinate plane , it can be easily seen that the triangle is not a right angled triangle ,

It can also be proved by measuring the length of the sides that if the sum of the squares of the sides is equal to the square of the largest side , then it will be a right triangle or not .

To know more about Triangle

brainly.com/question/2773823

#SPJ1

7 0
2 years ago
tamara has completed 60% of her practice time for the track meet. If she is expected to practice for 18h, how long has she alrea
anyanavicka [17]

Answer:

10h and 48min

Step-by-step explanation:

60*18=1080

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so 10.8h which means 10 hours and 48 min

4 0
2 years ago
Determine whether the point (1, 5) is a solution to the system of equations. Explain your reasoning in complete sentences.
Ivanshal [37]
The solution to any system graphically can be found where the 2 graphs intersect.  These two graphs intersect at the point (0, 2). 
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3 years ago
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