Mathematics College

-3xy-x²y²+1 is evaluated when x=-1 and y=-1 , then what is the exact value ?
​

Answers

Answer 1

Answer:

-3

Step-by-step explanation:

-3(-1)(-1)-(-1)^2(-1)^2+1

=-3

hopes this helps?!?!

Answer 2

Answer -2

Step-by-step explanation:

-3(-1)(-1)-(-1)^2(-1)^2+1

-3-1+1+1

-4+2

=-2

Related Questions

Adam had1/3 of a pizza

Answers

What’s the question cause I can’t answer it if there’s no question!?:(

Answer:

yeah anything else...

Step-by-step explanation:

help me with math pleaseee

Answers

Answer:

Step-by-step explanation:

2d+4g+2e+2f

Is 0.7 bigger or 0.75

Answers

Answer: 0.75 Is bigger

Step-by-step explanation:

0.7 is 0.70

meaning 0.75 is bigger.

Answer:

.75 is larger

Step-by-step explanation:

Think about it in terms of whole number. 75 is greater than 70, therefore .75 is greater than .70

There is a hidden 0 after the .7

the difference between a number,x, and 27 is 5​

Answers

Answer:

x-27=5

Step-by-step explanation:

x=32

pls help

2x− 6/x when x=3

Answers

Substitute.


2(3) - 6/(3)


2(3) = 6

6/3 = 2


6 - 2 = 4

Hey there!

x = 3

2(3) – 6 / 3

2(3) = 6

6 – 6/ 3

6 – 6 = 0

0/3 = 0

Answer: 0 ☑️

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Can you help me on question eight?!

Answers

Answer: A

Step-by-step explanation:

what is 62.8 divided by 4

Answers

Answer:

15.7

Step-by-step explanation:

use a calculator lol

62.8 divided by 4 would equal 15.7

Step by Step Solution

More Icon

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "62.8" was replaced by "(628/10)".

STEP

1

:

           314

Simplify   ———

            5

Equation at the end of step

1

:

 314

 ——— ÷ 4

  5

STEP

2

:

        314      

Divide  ———  by  4

         5      

Final result :

 157            

 ——— = 15.70000

 10  

Im ready to rock but are you ready to roll

Answers

Answer:

let's do this

Step-by-step explanation:

chingadera

Answer:

Sure but i can't roll straight :)

Step-by-step explanation:

PLEASE HELP IM BEGGING
System of equation
y=-2x-10
y=-3x+5

Answers

Answer:

(15,-40)

Step-by-step explanation:

Answer:

1. x, -5 y, 10

2. x, 2 y, 5

Step-by-step explanation:

I couldn't screenshare the graph so i just gave you were to graph the answers

Calvin is making a special cocktail for 124 guests. Each cocktail calls for 0.5 fluid ounces of Becherovka, which is purchased in 750-milliliter bottles. Due to the nature of the event, Calvin expects that each guest will have approximately 6 cocktails. If Becherovka comes in 12 bottles to a case, and each case costs
$189.43, what is the beverage cost per guest?

Answers

9514 1404 393

Answer:

  $1.87 per guest for quantity used

  $1.91 per guest for whole bottles used

  $3.06 per guest for whole cases used

Step-by-step explanation:

The cost of the beverage is ...

  ($189.43/case)(1 case/(12 bottles))(1 bottle/(750 mL)) = $0.02104777.../mL

Each guest consumes 6 cocktails of 0.5 floz each, so ...

  (6 drinks/gues)(0.5 floz/drink)(29.5735295625 mL/floz) ≈ 88.7205 mL/guest

Then the cost per guest is ...

  ($0.02104777.../mL)(88.7205 mL/guest) ≈ $1.86737/guest

The cost per guest for the amount used is about $1.87.

__

The total amount of drink used for all guests is ...

  124(88.7205 mL/guest) ≈ 11,001.4 mL

At 750 mL per bottle, this is ...

  (11,001.4 mL)/(750 mL/bottle) ≈ 14.7 bottles

If you're constrained to pay for 15 bottles, then the cost per guest is ...

  $189.43(15/12)/124 = $1.91 per guest

__

At 12 bottles per case, this is ...

  (14.7 bottles)/(12 bottles/case) ≈ 1.2 cases

If you're constrained to pay for 2 cases, then the cost per guest is ...

  $189.43(2)/124 = $3.06 per guest

Can someone help me with this math problem?
4x+10=22

Answers

-10 from both sides so
4x=12
divide both sides by 4
x=3

Answer:

x=3

Step-by-step explanation:

4x+10=22

Subtract 10 from both sides.

4x=22−10

Subtract 10 from 22 to get 12.

4x=12

Divide both sides by 4.

x=  12/4

Divide 12 by 4 to get 3.

x=3

Give the system of inequalities x-2y=15. 2x+4y=-18 what are x and y

Answers

Answer:

For x-2y=15, it's x= 15 + 2y. For 2x+4y=-18, it's x= -9-2y.

Step-by-step explanation:

-6x=6 what is x Can you guys help me get the awnser I am very stuck

Answers

Answer:

x = -1

Step-by-step explanation:

-6x/-6 = 6/-6

x = -1

Answer:

X= -1

Steps I used to get the answer:

1. Divide both sides by −6.

x=-1

------------

Checking:

−6x=6

1. Let x=-1.

−6×−1=6

2. Simplify −6×−1  to  6.

6=6

Done by NeighborhoodDealer

(5x2 – 6x + 10) + (x2 + 8x – 4)

Answers

Answer:

There an a mistake

Step-by-step explanation:

(5x2 – 6x + 10) + (x2 + 8x – 4)

There can't be x2  

and 5x2 is that 5*2 or 5*x2

Chloe needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3.5 hours and charged her $197 for parts. The total was $389.50. What was the cost of labor, per hour?
This is due today pls help now

Answers

389.50 minus 197 for parts will give you your answer

Answer: the answer is 55


A 24-foot ladder leans against a building. The foot
of the ladder is 7 ft from the building. Find the
measure of the angle which the ladder makes with
the level ground.

Answers

Answer:

73°

Step-by-step explanation:

Here we use trigonometry to find the angle. The building and the ground form a perpendicular angle, with the ladder acting as the hypotenuse, we get a right angle. We know the length of adjacent leg from the angle, and the length of the hypotenuse. In this case, we use cosine since cos = adjacent length/hypotenuse length. So cos x= 7/24. To isolate x, we use the inverse function of cos, cos^-1. Then x= cos^-1 (7/24) or 73°.

Exercice 6:
23
:
لكن لا شرر حشری ست
ارح مردها از من
دنیا
ا - لاک 24 - 3.27
32 2
/
/
مه
2
3 ​

Answers

Ummmmmm what is this ?

The diagram shows a semi-circle inside a rectangle of length 120 m.
The semi-circle touches the rectangle at A, B and C.
Not to scale
A
C
120 m
Calculate the perimeter of the shaded region,
Give your answer correct to 3 significant figures,
(5 marks)
I

Answers

Answer:

Answer is 30 m

Step-by-step explanation:

First calculate the cricumfrance of the circle, then divide it by 4 and thats the edge of the shaded area and the radius is the other edjes im pretty sure

This line is parallel
to the line
2x + 6y = 12.

A) y=-1/3x + 5
B) y=-3x + 1
C) y=3x + 4

Answers

Answer:

Step-by-step explanation:

2x+6y = 12

Rearrange to solve for y

6y = -2x + 12

y = -⅓x+ 2

Slope of line = coefficient of x = -⅓

Parallel lines have the same slope. Answer is A

What is 1,000,000 written as a power with a base of 10?

Answers

Answer:

101=10 101=1

106=1,000,000 (one million) 10-5=0.00001 (one hundred thousandth)

107=10,000,000 (ten million) 10-6=0.000001 (one millionth)

108=100,000,000 (one hundred million) 10-7=0.0000001 (one ten millionth)

Step-by-step explanation:

Answer:

10^6

Step-by-step explanation:

Which triangles are similar to triangle ABC?

Answers

Answer:

Not 100%

Step-by-step explanation:

Um... I would say both but im not 100% sure. Probably should get some more help

I need this quick please ​

Answers

Answer:

the slope is (2,1)

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Slope is rise/run. The rise here is 4 and the run is 2. 4/2 is 2. The line rises left to right, so the slope is positive.

Hope it helps!

During a bike challenge riders have to collect various colored ribbons each half mile they collect a red ribbon each “eighth of a mile they collect a green ribbon and each quarter of a mile they collect your blue ribbon which colors of ribbons will be collected at the three-quarter mile markerDo you know during a bike challenge writers have to collect furious colored ribbons each half mile they collect a red ribbon each eighth of a mile they collect the green ribbon and each quarter of a mile they collect a blue ribbon which colors of ribbons will be collected at the 3/4 mile markerBrian is driving 324 miles to visit some friends he wants to get there in six hours how many miles does he need to drive each hour

Answers

Step-by-step explanation:

ijsjnsns

jjwjwjwjhehwhwjwjwnwjwjwhhwhw

A supermarket has found that the relationship between a day's high temperature and the amount of money taken in on that day from frozen yogurt sales can be modeled by the equation y = 4x + 164, where x is the high temperature in degrees Fahrenheit and y is the amount taken in from frozen yogurt sales in dollars. Which of these statements is true according to the model?

Answers

I am sure It will be 168x

Answer:

On a day when the high temperature is 79° F, the supermarket can expect to take in $380 in frozen yogurt sales.

Step-by-step explanation:

how are the triangles similar??

Answers

Attached a picture. Hope this helps!

Simplify the expression:
-12 - 4x + 9 + -10 + 8x

Answers

Answer:

Step-by-step explanation:

4x-13

Answer:

4x - 13 there you go!!!

Step-by-step explanation:

what is 20:10 in its simplest

form

Answers

Answer:

2/1

Step-by-step explanation:

20/10 devided by 10 to both numbers

helopppppppppppp meeeeeeee

Answers

Answer:

A. Sam owes his dad $12.50

Step-by-step explanation:

Because the two numbers are negatives, it represents that he is in a negative balance meaning that he owes someone the money. Then if you do the basic math, -2.5 - 10 = -12.50.

Answer:

The answer would be B

Step-by-step explanation:

its B becasue its the only explanation that makes sense

P.S I actually know the other questions don't make sense

Your welcome!

Complete the table for the given rule.
Rule: y = 5x

Answers

where is the table for this?
is there a picture that is supposed to go with this??

asking for the equation

Answers

Answer:

x=-6

Step-by-step explanation:

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