What is the value of the expression
x2 + y2 + x - y
when x = -1 and y = 3

Answers

Answer 1

Answer:

ahhh i dont remeber

Answer 2
the answer is -1+9-1-3=10 but before this step you need to put -1 square + 3 square + (-1) - 3

Related Questions

please help me with math

Answers

Answer:

Given: P.E=6.0J Height (h)= 3m g=9.8m/s^2

mass=?

Formula: P.E=mgh

m=P.E/gh

Application: To find mass of an apple

Answer+unit= 0.2 kg

Step-by-step explanation:

m=P.E/gh

= 6kgm^2/s^2 ÷ 9.8m/s^2*3m

=0.2kg

Which system of inequalities is represented by the graph?
A. y≥1
y−x>0
B. y≤1
y−x 0
2. Which system of inequalities is represented by the graph?

Answers

Answer:

  B, D

Step-by-step explanation:

1. The shaded area is below the solid line at y=1, so the solution set is partially determined by the inequality ...

  y ≤ 1 . . . . . . values of y in the solution set are less than or equal to 1

The shaded area is below the line y=x, so is partially determined by ...

  y -x < 0

These inequalities match the second choice.

__

2. The solid boundary line has a slope, rise/run, of 1/3. The shaded area is below it. So the applicable inequality is ...

  y ≤ 1/3x +6 . . . . . . matches the fourth choice

Myra spends $5.70 a day on food and drink during the school year She skips the weekends . How much does she spend for the week?

Answers

Answer:

57$

Step-by-step explanation:

5.70 x 2 for both food and drink

the do 11.4 (the answer for the 1st step) x 5 for the week days giving you the answer of 57$

Answer:

$57 dollars

Step-by-step explanation                                                                                           Don't have one but i took the test and got it right

Use the commutative property to rewrite the following expression.
-16 · y

Answers

Commutative property of multiplication is just mixing up the order but the answer stays the same.
Examples: 4 + 5 + 6 = 6 + 4 + 5 ; (a)(d) = (d)(a) ;

Answer:
(-16)(y) or/and (y)(-16)

Suppose there are 11 freshman, 7 sophomores, 13 juniors, and 15 seniors running for the offices of president, vice president, and secretary. If no person can hold more than one office, in how many different ways could these people be elected to these positions if the president must be a senior and the secretary must be a freshman

Answers

Answer:

7,260 ways

Step-by-step explanation:

Here, we are told that the president must be a senior and the secretary must be a freshman.

Now for the post of President, we have 15 choices to pick from

For the post of secretary, we have 11 choices to pick from

Now the last position, the vice president

Firstly , we have 14 seniors( 1 already president), 10 freshmen(1 already secretary) , 6 sophomores and 13 juniors

So the total number of choices will be;

14 + 10 + 7 + 13 = 44

So the number of ways will be;

44 * 15 * 11 = 7,260 ways

The Gabrielsons ran a family relay race. The distance run by each family member (in kilometers) is listed below.4,11,6,7Find the standard deviation of the data set. Round your answer to the nearest hundredth.

Answers

Answer : the standard deviation approximately

2.55km

Answer:

The answer is 2.55

Step-by-step explanation:

Find the mean

4+11+6+7

Apply the formula

SD

​  

= 9+16+1+0/4

​=26/4

​= 6.5

=2.55

solve this question

Answers

Answer: a=56/15

Step-by-step explanation:

For this problems, it is important ot know how to read ratios. They can be read as fractions. Knowing this, we would use proportions to solve.

[tex]\frac{3a}{7} =\frac{8}{5}[/tex]                      [cross multiply]

[tex]15a=56[/tex]                  [divide both sides by 15]

[tex]a=\frac{56}{15}[/tex]

Now, we know that a=56/15.

Answer:

3 11/15

Step-by-step explanation:

3a : 7 : : 8 : 5

= 3a/7 = 8/5

=15a = 56

= 56/15 = 3 11/15

A bicycle rental company charges $14 for the first hour and $5.00 for each additional hour. Determine the maximum number of
hours you can rent a bike if you only have $79.
Answer:____hours

Answers

Answer:

13 Hours

Step-by-step explanation:

subtract 14 from 79. That leaves you with 65 dollars. Divide 65 by 5 and you get 13.

Answer: 14 hours

Explanation:

79 - 14 = 65 (1 hour passed)

65/5 = 13 (13 hours passed)

13 hours + 1 hour = 14 hours

What is 0.5x10^2??????????????????

Answers

Answer:

0.5 x 10^2 = 50

Step-by-step explanation:

Hope this helped

Brainliest?

In 2016 49% of all degrees granted were bachelors degrees if 1,920,718 students earned bachelors degrees how many total degrees were granted that year

Answers

Answer:

3919832.65306

Step-by-step explanation:

This problem is focused on percentages.

Now given that 49% of a number is  1,920,718

we can say let the number be x

so 49% of x=  1,920,718

now expressing this problem mathematically we have

(49/100)*x=  1,920,718

0.49x= 1,920,718

divide both sides by 0.49 we have

x=  1,920,718/0.49

x= 3919832.65306

Therefore the total that were granted degree that year was 3919832.65306

what is the value of x in the equation as a fraction 2(5x+4)=17

Answers

Answer:

x= 9/10

Step-by-step explanation:

2(5x+4)=17

Distribute

10x +8 = 17

Subtract 8 from each side

10x+8-8=17-8

10x = 9

Divid by 10

10x/10 = 9/10

x= 9/10

Divide both sides by 2:

5x + 4 = 8.5

Subtract both sides by 4:

5x = 8.5 - 4 = 4.5

Divide both sides by 5:

x = 4.5 / 5 = 0.9  or  9/10

A parachute is describing at rate of 28 feet per minute find the total change of altitude of the parachuter after 4 mins

Answers

A parachute is describing at rate of 28 feet per minute find the total change of altitude of the parachuter after 4 mins.

112 feet

simplify 4-8÷2+3

please help

Answers

Answer:

4-8÷2+3=3

Step-by-step explanation:

Divide the numbers: 8/2=4

return to the problem: 4-4+3=3

Answer: 3

Answer:

it is 1

Step-by-step explanation:

because 4-8=-4\2=-2+3=1

Jayden has 3/4 of a bag of dog food. his dog eats 1/10 of a bag per week. how many weeks will the dog food last. plzzzz send help I'm already failing

Answers

Answer: 7.5 weeks


Explanation:

Brainliest please

Michael
is planting a garden. The probability that the seed will produce a plant is 9/10. The probability that a seed will produce a plant is

Answers

Answer:

I believe the answer should be 90%

X (-9, 2) and Y(5, -4)
Given the points, find XY. Round to the nearest tenth.

Answers

Answer:

XY: 15.23

Step-by-step explanation:

Smartness

The distance between the endpoints of line segment XY will be 15.2 units.

What is the distance between two points?

It is the measure of distance between the two points and is known as length. The length is measured in meters generally.

Let one point be (x, y) and another point be (h, k).

Then the distance between the points will be

D² = (x - h)² + (y - k)²

The endpoints of line segment XY are given below.

X(-9, 2) and Y(5, -4)

The distance between the endpoints of line segment XY will be given as,

D² = (x - h)² + (y - k)²

D² = (5 + 9)² + (-4 - 2)²

D² = (14)² + (-6)²

D² = 196 + 36

D² = 232

D = √232

D = 15.2 units

The distance between the endpoints of line section XY will be 15.2 units.

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(x2 + 3x – 4) + (2x3 - 2x + 5)​

Answers

Answer:

step-by-step.

x2+3x−4+2x3−2x+5

=x2+3x+−4+2x3+−2x+5

Combine Like Terms:

=x2+3x+−4+2x3+−2x+5

=(2x3)+(x2)+(3x+−2x)+(−4+5)

=2x3+x2+x+1

Answer:

=2x3+x2+x+1

Answer:

below

Step-by-step explanation:

[tex]( x^{2} + 3x - 4) + ( 2x^{3} -2x = 5) \\x^{2} + 3x - 4 + 2x^{3} - 2x + 5 \\x^{2} + (3x-2x) + 2x^{3} + ( 5 - 4) \\ x^{2} + x + 2x^{3} + 1 \\ 2x^{3} + x^{2} + x + 1[/tex]

quotient of twice a number and 6 is 42

Answers

Answer:

[tex]n = 126[/tex]

Step-by-step explanation:

First let's model this into an equation.

Twice a number is [tex]2n[/tex], and that divided by 6 is [tex]\frac{2n}{6}[/tex]. That's equal to 42, so we have [tex]\frac{2n}{6} = 42[/tex].

Now we can simplify this equation by isolating n on one side of the equation.

Multiply both sides by 6:

[tex]\frac{2n}{6} \cdot 6 = 42\cdot 6\\\\2n = 252[/tex]

Divide both sides by 2:

[tex]2n \div 2 = 252\div 2\\\\n = 126[/tex]

Hope this helped!

cual es el valor absoluto de -|-42|​

Answers

Answer:

-42

Step-by-step explanation:

Here are the numbers of supporters at five different ice hockey matches.

75,600
7,506
75,650
7,056
75,026

Answers

Is there a question that goes with this?

If so, I'd be happy to help :)

PLEASE HURRY WILL GIVE BRAINLIEST! Which phrase describes the algebraic expression Three-fourths x + 2? A. three-fourths of a number plus two B.the quotient of four-thirds and two C.the product of three-fourths and two D.the difference between three-fourths of a number and two

Answers

Answer: A

Step-by-step explanation:

3/4x+2

3/4+2

Answer:

The answer is A

Step-by-step explanation:

PLS HELP I DONT UNDERSTAND :( WILL MARK BRAINLIEST!!

Answers

Answer:

where is the question though?¯\_(⊙_ʖ⊙)_/¯

Six friends each use a $2.00 off coupon to buy themselves a movie ticket. They spend a total of 42. What is the price of one movie ticket without the coupon

Answers

Answer:

5

Step-by-step explanation:

you would do 42 divided by 7 which is 6 then subtract 2 from 7 and you would get 5

LaVilla is a village in the Italian Alps. Given its enormous popularity among Swiss, German, Austrian, and Italian skiers, all of its beds are always booked in the winter season, and there are, on average, 1465 skiers in the village. On average, skiers stay in LaVilla for 11 days. How many new skiers are arriving - on average - in LaVilla every day

Answers

Answer:

There are approximately 133 new skiers arriving every day

Step-by-step explanation:

Total number of skiers = 1465

time of stay for skiers = 11 days

How many new skiers are arriving on average = ???

To keep the average number of skiers available at each time constant, the number of skiers coming in and going out are fairly constant, and this is gotten by using the flow rate formula.

flow rate = amount available  ÷ flow time

flow rate = 1465 ÷ 11

flow rate = 133.18

flow rate = 133

∴ There are approximately 133 new skiers arriving every day

In which of these situations do the quantities combine to make 0?
O A. A bird flies 25 feet up in the air. It then flies 25 feet across to its
nest.
O B. Veronica receives $21 for babysitting. She then spends $21 on a
new shirt.
O C. A player in a game earns 4 points for getting an answer right. She
then earns 4 points for making it around the board,
O D. A car is filled with 10 gallons of gas, Half of the 10 gallons are
then used on a day's drive.​

Answers

Answer:

b is the correct answer

Option B situations do the quantities combine to make 0.

What are arithmetic operators?

Arithmetic operations are a set of four basic operations to be performed to add, subtract, multiply or divide two or more quantities. These are also known as mathematical operations.

Addition

The addition is a basic mathematical skill of finding or calculating the total of two or more numbers, or we can say in simple words adding things together. It is denoted by the symbol ‘+’.

Subtraction

The subtraction arithmetic operation shows the difference between two numbers. It is denoted by the symbol ‘-‘. Subtraction is mostly used to find out what is left when things are taken away.

Multiplication

The repeated addition is known as multiplication. It is represented by the symbol ‘×’. Multiplication as an arithmetic operation helps us to find out the total when a number is repeating itself a number of times.

Division

The division is an act of dividing something into equal parts or groups. It is one of the four basic arithmetic operations which gives a fair result of equal sharing.

Option A :

Given

A bird flies 25 feet up in the air. It then flies 25 feet across to its

nest.

So, total distance flown by bird = 25 + 25 = 50 feet

Which do not combine to 0.

Option C :

A player in a game earns 4 points for getting an answer right. She

then earns 4 points for making it around the board.

Hence, total points earned = 4 + 4 = 8

Which do not combine to 0.

Option D :

A car is filled with 10 gallons of gas, Half of the 10 gallons are

then used on a day's drive.​

= 10 - [tex]\frac{1}{2}[/tex] × 10

= 10 - 5

= 5

Which do not combine to 0.

Option B :

Veronica receives $21 for babysitting. She then spends $21 on a

new shirt.

So net amount left with Veronica = 21 - 21 = 0

Hence, it combines to zero.

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If you decide to study 4 hours more a week during your junior year (32 weeks) with the expectation of getting $2,000 scholarship to college how much is your study time worth per hour

Answers

Answer: You will get $2,000 for 128 hour, or 2,000/128 = $15.625 per hour study time.

Step-by-step explanation:

We will give the solution of the following problem:

"If you decided to study for four hours a week during your junior year (32 weeks) with the expectation of getting a $2,000 scholarship to college, how much is your study time worth per hour?"

In 32 weeks you will have total of 4*32 = 128 study hours.

You will get $2,000 for 128 hour, or 2,000/128 = $15.625 per hour study time.

solve: 5y – 3.5 = 10.5

Answers

Answer:2.8

Step-by-step explanation:add 3.5 to the 10.5 which equals 14 then you divide 5 by 14 to get the y alone and it equals 2.8

5y-3.5=10.5
+3.5 +3.5
5y=14
5y/5= y
14/5= 2.8
Y=2.8

Which expression is equivalent to 5/6 / 7

Answers

Answer:

can you help me/

Step-by-step explanation:

Scenario:You are a Geographic Information System (GIS) specialist who normally works at the Public Works Planning office.You are directed to report to the Incident Command Post (ICP) and have been assigned to the Planning Section Chief and will report to the Chief.You will be producing maps to display potential flooding impacts in the city and county.What NIMS Management Characteristics are you supporting? Select the two characteristics that apply.a. Integrated Communicationsb. Establishment and Transfer of Commandc. Chain of Command and Unity of Commandd. Accountabilitye. Dispatch/Deploymentf. Information and Intelligence Management

Answers

Answer: Chain of Command and Unity of Command ; Information and Intelligence Management

Step-by-step explanation:

Chain of Command typically loooks into an organization's hierarchical structure while unity of commands simply has to do with the reporting to ones designated supervisor.

Also, because maps are being produced, there'll be with the gathering, assessing, analyzing, sharing, and managing intelligence.

Therefore, the NIMS Management Characteristics that'll be supported are Chain of Command and Unity of Command ; Information and Intelligence Management.

The NIMS management characteristics that are mostly supported are:

A chain of Command is a unity of command.information and intelligence management.

The chain of command and unity of command is an overall hierarchy of the orpganization, while the unity of command says that the entire chain is always reporting to the similarly designated supervisor.

The information and intelligent management help the owner to take according to decisions forward premises of the information system.

As per the GIS when the maps have the process for the information would be gathering the information, assessing it, analyzing it, sharing the information to the delegated conducting the field, and then managing the intelligence of the information.

Thus, the NIS characteristics are chain and unity of command, and information and intelligence management.

To know more about geographic information system, refer to the link:

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answer fast I will reward 50 points [] are the exponents Use the given information to complete parts I and II. In your final answer, include all calculations. Planet Earth has an approximate diameter of 1.2742 · 10 [10] millimeters. The sun has a diameter of 1.391 · 10 [6] kilometers. Part I: Given that for every one kilometer there are 1,000,000 millimeters, which unit of measurement should be used to best represent the lengths of the sun and Earth's diameters? Part II: Approximate how many times greater the sun's diameter is than planet Earth's.

Answers

Answer:

see below

Step-by-step explanation:

given;

Planet Earth has an approximate diameter of 1.2742 x 10¹⁰ millimeters.

The sun has a diameter of 1.391 x 10⁶ kilometers.

find:

Part I:

Given that for every one kilometer there are 1,000,000 millimeters, which unit of measurement should be used to best represent the lengths of the sun and Earth's diameters?

Part II:

Approximate how many times greater the sun's diameter is than planet Earth's.

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

part I:

the best measurement to represent the lengths of the sun and Earth's diameters is kilometers.

= planet dia. = 1.2742 x 10¹⁰ mm x            1 km            =  12,742 km  

                                                          1,000,000 mm

= sun dia. = 1.391 x 10⁶ km = 1,391 x 10³ km = 1,391,000 km

part II:

the approximate scale dia ratio of earth to sun is = sun dia. over earth's dia.

=  1,391,000 km

    12,742 km

= 109.17 times

therefore,

109.17 times greater the sun's diameter is than planet Earth's.

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