Given the function y= 2x if x>0 x−3 if x≤0 . Find its values for x=1; 3; 0; −2. Answer: If x = 1, then y = . If x = 3, then y = . If x = 0, then y = . If x = −2, then y = .

Answers

Answer 1

Answer:

Step-by-step explanation:

Given the function y= 2x if x>0 and x−3 if x≤0, to find the value of the function for x = 1, we will substitute x = 1 into the function y = 2x since x>0 at that point.

If x = 1;

y = 2(1)

y = 2

Hence when x = 1, y = 2

If x = 3, we will still use the function y = 2x since 3 is still grater than 0 satisfying the condition x>0.

y = 2(3)

y = 6

Hence when x = 3, y = 6

when x = 0, since x is zero, we will substitute x = 0 into the function x-3 because x≤0 at this point.

If y = x-3

y = 0-3

y = -3

Hence when x = 0, y = -3

when x = -2, we will substitute x = 0 into the function x-3 because -2 is also less than zero

If y = x-3 for x≤0

y = -2-3

y = -5

Hence when x = -2, y = -5


Related Questions

HELP ME PLZZ I DONT UNDERSTAND THIS!!!!!!

Answers

Answer:

1/2

Step-by-step explanation:

y =  kx

where k is the constant of proportionality

y = 1/2 x  so k= 1/2

if it is 2:30 what time would it be 1 hour and 30 minutes

Answers

Answer:

4:00

Step-by-step explanation:

If it’s 2:30 it would be 4:00 in an hour and a thirty minutes ahead

A triangular window has area
24 square feet and height six feet.
What is its base?

Answers

The base is 8 square feet

Mary and her band are performing a concert. They need to make $1,963.50 to cover their travel, lodging, and meal costs. If they charge $8.50 for each ticket, how many tickets do they need to sell to cover their costs?

Answers

1963,50/8,50= 231
they need to sell 231 tickets

Answer:

231

Step-by-step explanation:

I got the answer right

Overnight, the temperature dropped 1.3 degrees every hour. How many hours did it take the temperature to drop 7.8 degrees?

Answers

Answer:

what was the temperature at first?

Need help don’t understand

Answers

Answer it is B

Step-by-step explanation:

Answer:

[tex] r^2 [/tex]

All choices are incorrect.

Step-by-step explanation:

Remember that [tex] r = r^1 [/tex].

Also remember the rule: [tex] \dfrac{a^m}{a^n} = a^{m - n} [/tex]

[tex] \dfrac{r^3}{r} = [/tex]

[tex] = \dfrac{r^3}{r^1} [/tex]

[tex] = r^{3 - 1} [/tex]

[tex] = r^2 [/tex]

Answer: [tex] r^2 [/tex]

All choices are incorrect.

how many line of symmetry has a kite​

Answers

Answer:

1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

The sum of a Rational Number and an irrational number is rational true or false?

Answers

Answer: FALSE

Step-by-step explanation:

An Irrational number is a decimal t hat is non repeating while a rational number is s repeating decimal.

Answer:

False

Step-by-step explanation:

Because the sum of a rational Number and an irrarional number is still irrational.

What is this answer and work shown please 5/2x -3 =2

Answers

Answer:

x = 2

Step-by-step explanation:

Given

[tex]\frac{5}{2}[/tex] x - 3 = 2 ( add 3 to both sides )

[tex]\frac{5}{2}[/tex] x = 5 ( multiply both sides by 2 to clear the fraction )

5x = 10 ( divide both sides by 5 )

x = 2

5/2x - 3 = 2

(subtract the three)

5/2x = 5

(multiply both sides by 2/5 so that the fraction can get cancelled out and the x is by itself)

x = 5 x 2/5 so 2

1.BINOMIAL: A POLYMOMIAL WITH EXACTLY..................... TERMS


2. TRINOMIAL: A POLYMOMIAL WITH EXACTLY......................... TERMS


3. COEFFICIENT: A............. IN A TERM OF AN ALGEBRAIC EXPRESSION.​

Answers

1. Bi means two
2. Tri means 3
3. Coefficient: a constant in a term of an algebraic expression. FYI coefficient is 5 in 5x

Can you answer this?

Answers

Answer what? There is no question to answer

Algebraic equations with two or more operations can be solved by undoing them in reverse order of operations. True or false?

Answers

Answer:

false you would do it in order of operations

work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie store. how many movies must u rent to spend the same amount at each movie store" then there's 2 pics one says "all rentals $1.50, membership fee $15" other says "membership free, all rentals $2.25"

Answers

Answer:

  20

Step-by-step explanation:

Your equation is correct. To solve it subtract 1.5r from both sides and divide by the resulting coefficient of r.

  15 = 0.75r

  15/0.75 = r = 20

You must rent 20 movies for the costs to be the same.

The Mp of coke is 20%more than its purchased price.if the coke was sold after 15%duscount,there will be gain of rs.40,find the M.p and Cp

Answers

Answer:

let cp be x

mp= x+ (20% 0f x)= 1.2x

sp = mp -d%of mp= 1.2- 15% *1.2 =1.02x

profit = 40

sp-cp =40

1.02x-x=40

x=2000

cp =2000

mp= 1.2*2000=2400

Step-by-step explanation:

Solve using 2-step equations.
You work as a salesperson at Cutco, and earn only commission. You earn 30%
commission on everything you sell. Your bills this month are $1,800 and you
also want to put $500 into your savings.
How much do you need to sell at your job to make sure you can pay your
bills and still have enough to save?

Answers

Answer:

$7666.7

Step-by-step explanation:

1800 + 500 = 2300. That means that 30% = 2300. If u divide both sides by 3 then 10% = 766.67 times that by ten and then that will equal $7666.7

The Bureau of Labor and Statistics (2018) reports that the average earner with a high school diploma will earn about $35,000 per year, an earner with a bachelor's degree will earn about $59,000 per year. The average salary of the high school graduate is what percent of the college graduate?

Answers

Answer:

59.322% or 59%

Step-by-step explanation:

devide 59,000 from 35,000 to get the answer.

After that, you will get 59% (rounded).

the answer is D (59.3%)

i jus got done takin the math quiz on knowledgematters

Danielle put 4.902 gallons of gasoline in a gas tank. What is 4.902 written in expanded form?
A. 4×1+9×110+2×1100
B. 4×1+9×110+2×11,000
C. 4×10+9×110+2×1100
D. 4×10+9×1100+2×11,000

Answers

Answer:

(4* 1) + (9 * 1/10) + (2 * 1/1000)

Step-by-step explanation:

Given the figure : 4.902

Writw the figure above in expanded form:

4.902

Using the place value indicators :

Unit___tenth___hundredth___thousandth

4______9_______0___________2

Unit:

4 × 1

After the decimal point :

Tenth :

9 × 1/10 =

Hundredth :

0 * 1/ 100

Thousandth:

2 * 1/1000

Hence :

(4* 1) + (9 * 1/10) + 0 + (2 * 1/1000)

Answer:   B

Step-by-step explanation:

4x1+9x1/10+2x1/1000

A hot-air balloon starts 6 feet above the ground and then rises 20 feet each minute.
What equation gives the height h in feet as a function of time t in minutes?
A. h=61
B. h=202
С. h = 204 + 6
D. h=6+ 20

Answers

At starting hot-air balloon starts 6 feet.

So, at t = 0 , h = 6 feet.

Now, distance travelled per minute is 20 feet.

So, extra distance travelled in t minutes is 20t feet.

Now,

Total height = Staring height + increase in height w.r.t time.

h = 6 + 20t

Therefore, the height h in feet as a function of time t in minutes is h = 6 + 20t .

Hence, this is the required solution.

Which revision changes the sentence from passive voice to active voice?
The new art gallery in our city was visited by several politicians and celebrities to raise money for charity.
OA. Visited by several politicians and celebrities, our city's new art gallery raised money for charity.
OB. The new art gallery in our city raised money for charity by the visits of several politicians and celebrities.
OC. To raise money for charity, the new art gallery in our city was visited by several politicians and celebrities.
OD. Several politicians and celebrities visited the new art gallery in our city to raise money for charity.

Answers

Answer:

They all have the passive word, "Visited," so that makes everything a bit more complicated. I can see why you asked the question. I'd go with C. Unless it's a trick question and you're supposed to see that or something.

Evaluate the expression.
10x - 3x2 when x = 2

Answers

Answer:

8

Step-by-step explanation:

Answer:8 or -16

Step-by-step explanation:

a) If you mean 10x - 3(x²) when x=2

10(2)- 3(2²)= 20-12=8

b) If you meant 10x - 3x²=

10(2)-(3 x 2)²= 20-6²

20-36=-16

find the 55th term of the arithmetic sequence 11,21,31,...

Answers

11+(55-1)×10=551 just use the formula

-7p = -3p - 8
p =
Help

Answers

Answer:

p=2

Step-by-step explanation:

-7p = -3p - 8

Add 3p to each side

-7p+3p = -3p+3p - 8

-4p = -8

Divide each side by -4

-4p/-4 = -8/-4

p = 2

Answer:

[tex] \huge{ \fbox{ \sf{p = 2}}}[/tex]

Step-by-step explanation:

[tex] \bigstar{ \sf{ \: - 7p = - 3p - 8}}[/tex]

[tex] \underline{ \underline{ \mathfrak{Let's \: solve}}} : [/tex]

[tex] \text{Step \: 1} : \sf{Move \: 3p \: to \: left \: hand \: side \: and \: change \: it's \: sign}[/tex]

[tex] \mapsto{ \sf{ - 7p + 3p = - 8}}[/tex]

[tex] \text{Step \: 2} : \sf{Collect \: like \: terms}[/tex]

[tex] \sf{Like \: terms \: are \: those \: which \: have \: the \: same \: base}[/tex]

[tex] \mapsto{ \sf{ - 4p = - 8}}[/tex]

[tex] \text{Step \: 3} : \sf{Divide \: both \: sides \: by \: - 4}[/tex]

[tex] \mapsto{ \sf{ \frac{ - 4p}{ - 4} = \frac{ - 8}{ - 4}}} [/tex]

[tex] \text{Step \: 4} : \sf{Calculate}[/tex]

[tex] \mapsto{ \sf{p = 2}}[/tex]

Hope I helped!

Best regards! :D

~[tex] \sf{TheAnimeGirl}[/tex]

3: Mary has 26 sweets and is able to share them evenly between her friends.
Mary has more than 1 friend.
Write down how many friends Mary might have.​

Answers

Answer:

Mary has 12 friends, and a total of 13 people including her. Or, she has 25 friends, and a total of 26 people including her.

Step-by-step explanation:

First, we know that 26 is divisible by 1, 2, 13, and 26 because (2x13) and (1x26) both equal 26 but we know that Mary has more than 1 friend and if Mary is also added to the group where the candy is divided, that means that 1 and 2 are both out because Mary has more than 1 friend so 1 cannot be the answer and if Mary has 2 friends, that means that the candy would have to be divided 3 ways which is not possible evenly so the answer is either 12 friends or 25 friends.

please help!! (click on pic)

Answers

Answer:

1/2x³y^6

Step-by-step explanation:

Plot the image of point Q under a reflection across the -axis.
please help, I don’t know this question!

Answers

Answer:

pit it on -4 because your reflecting it on x

Find the length of the segment connecting (8,10) and (9,3). Round your answer to the nearest tenth.

Answers

Hey there! I'm happy to help!

Here's how to find the distance between any two points.

Subtract the x values.

8-9=-1

Square it.

-1²=1

Subtract the y values.

10-3=7

Square it.

7²=49

Add the two numbers you got.

49+1=50

And find the square root.

√50≈7.1.

Have a wonderful day! :D

2. Write the equation of the line that goes through (5, 4) and has a slope
NEEED HELLLPPPPP PLEASEEE

Answers

y= 4/5 x

Option 2

Step-by-step explanation:

[tex](5,4) = (x_1,y_1) \\ m = \frac{4}{5} [/tex]

Substitute values into the point slope form

y-y1 =m(x-x1)

y- 4= 4/5(x-5)

y -4= 4/5x -4

y= 4/5 x -4+4

y= 4/5x

Your cell phone plan costs ​$24..99 per month plus ​$0.17 for each text message you send or receive. You have at most ​$29 to spend on your cell phone bill. What is the maximum number of text messages that you can send or receive next​ month?​

Answers

Answer:

The maximum number of text messages you can send per month would be 23.

Step-by-step explanation:

1. First, you want to create an inequality from the word problem.  You know that $24.99 is a constant, so we won't put any variables next to it.  You also know that each text message is $0.17, so that would need a variable since it can change each month.  You also know that you can spend $29 maximum each month, so that goes on the other side of the inequality.  Your inequality will look like this:  0.17x+24.99≤29 (x is the number of text messages).

2. Second, you want to solve for x.  To do this, subtract 24.99 from each side.  After this, the equation is 0.17x≤4.01

3. Now, divide each side by 0.17.  Now your inequality is x≤23.59.  This represents how many text messages you can send per month without going over 29.

4. Finally, you have to realize that is impossible to send exactly 23.59 text messages.  So, you have to round down to 23 to get an even number of text messages, and that's your answer!

Hope this helps!  Feel free to ask any questions :)

10. A movie theater sells 3 different sizes of popcorn: small, medium, and large. An order of popcorn comes with 4 different topping choices: butter, cheese, caramel, or salt. [4 points] How many unique ways can you order a bag of popcorn? (You can only select one topping.) Ans:_ What is the probability that a randomly selected popcorn is large with either butter or salt?

Answers

Answer: 12

Step-by-step explanation:

The answer is 12 because:

sizes are 3

toppings are 4

Using the Fundamental Counting Principal you multiple the selections

( 3 x 4=12)

So just learn the fundamental counting principal and it'll be easier. :)

The number of unique ways that you can order a bag of popcorn if you can only select one topping is 12 ways.

How do solve probability combinations?

Combinations in probability refer to sequences of outcomes where the order does not matter.

Combinations are a way to calculate the total outcomes of an event where the order of the outcomes does not matter. To calculate combinations, we will use the formula nCr = n! / r! × (n - r)! where n represents the total number of items, and r represents the number of items being chosen at a time.

We are given the 3 different sizes of popcorn as;

Small

Medium

Large

Now, we are told that an order of popcorn comes with 4 different topping choices. Thus;

A number of unique ways that you can order a bag of popcorn are;

N = 3×4 = 12 unique ways

Read more about the probability combinations at; brainly.com/question/24756209

#SPJ2

4^x+ 2^(1+2x)= 50
I know what the answer is (about 2.03), but I need help getting there!

Answers

Step-by-step explanation:

4ˣ + 2¹⁺²ˣ = 50

Rewrite 4 as a power of 2.

2²ˣ + 2¹⁺²ˣ = 50

Factor out 2²ˣ.

2²ˣ (1 + 2) = 50

2²ˣ = 50/3

Take log of both sides.

ln(2²ˣ) = ln(50/3)

Use exponent property.

2x ln 2 = ln(50/3)

Solve for x.

x = ln(50/3) / (2 ln 2)

Simplify.

x = ln(50/3) / (ln 4)

x ≈ 2.03

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