If 2x-1 = 13, evaluate the expression below. -x^2-4x
Explain please.

Answers

Answer 1

Answer: -77

Step-by-step explanation:

2x - 1 = 13

Add 1 on both sides

2x = 14

x = 7

Substitute x to 7

-(7)^2 -4(7)

Solve

-49 - 28 = -77

Answer 2

Answer:

-77

Step-by-step explanation:

-x^2-4x to [tex]-7^{2}[/tex]- ( 4  × 7)

-7^2 - ( 4  × 7)

-49 - ( 4  × 7)

-49 -28

=

-77


Related Questions

The area of a mirror is 225 in.² and it’s with is 13 3/4 inches will the mirror fit in a space that is 15“ x 16“ explain

Answers

Step-by-step explanation:

A = wh

225 in² = (13.75 in) h

h ≈ 16.4 in

No, the mirror is too tall.

Round the following number to the place indicated: 65,327; thousands

65,330
70,000
65,000
65,300

Answers

The answer is 65,000

I need a fast answer !! A bag has 7 blue marbles and 3 red marbles. What is the probability of drawing two red marbles, if the first marble is replaced after it is drawn? A. 1/7 B. 1/3 C. 3/10 D. 9/100

Answers

Answer:

Step-by-step explanation:

9/100 i believe as you would multiply 3/10 by 3/10 due to the fact the marble is being replaced so the probability of getting a red marble the second time will be more unlikely. If I'm right please thank me or give me brainly. Hope this helps :)

The probability of drawing two red marbles, if the first marble is replaced after it is drawn, is 9/100.

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

The probability of drawing a red marble on the first draw is 3/10, since there are 3 red marbles out of a total of 10 marbles.

Since the first marble is replaced before the second draw, the probability of drawing a red marble on the second draw is also 3/10.

To find the probability of drawing two red marbles in a row, we multiply the probabilities of the individual events, since they are independent:

P(drawing two red marbles) = P(red on first draw) × P(red on second draw)

P(drawing two red marbles) = (3/10) × (3/10)

= 9/100

Therefore, the probability of drawing two red marbles, if the first marble is replaced after it is drawn, is 9/100.

To learn more on probability click:

https://brainly.com/question/11234923

#SPJ3

!!30 points!!
Are points A, B, and E collinear or noncollinear?

Answers

A. Noncolinear

ABE although they are in the same side, but they don't lie on the same line.

so its a noncolinear.

Answer:

ABE although they are in the same side, but they don't lie on the same line.

so its a noncolinear.

Step-by-step explanation:

On his first day of school, Kareem found the high temperature in degrees Fahrenheit to be 76.1°. He plans to use the function C of F = five-ninths (F minus 32) to convert this temperature from degrees Fahrenheit to degrees Celsius. What does C(76.1) represent?

Answers

Answer: the temperature of 76.1 degrees Fahrenheit converted to degrees Celsius

Step-by-step explanation:

Answer:Aka) A

Step-by-step explanation:

Five hundred sixty two and nine tenths

Answers

Answer:

562.9

Step-by-step explanation:

how do i divide an equation over a negitive number? ​

Answers

Multiply both sides by negative four to get rid of the fraction

j+18=-32

subtract 18

j=-50

Points P, Q, R, and S are collinear. Point Q is between P and R, R is between Q and S, and PQ =RS. If PS = 21 and PR = 16, what is the value of QR? QR = (Simplify your answer.)​

Answers

Greetings from Brasil...

→ Collinear points = points belonging to the same line

→ PQ is said to be equal to RS. Let’s call this distance X

→ let's call QR Y

With this information and the figure in the annex we can conclude that:

refer to attached

PQ = X

QR = Y

RS = PQ = X

then

PR = PQ + QR

16 = X + Y       i

PS = PR + RS

21 = 16 + X

X = 5       putting in i

16 = X + Y

16 = 5 + Y

Y = 11

So,

PQ = 5QR = 11RS = 5

Collinear points are points on the same line.

The value of QR is 11

From the question, we have:'

Q between P and RR between Q and S

This means that:

[tex]\mathbf{PR = PQ + QR}[/tex]

[tex]\mathbf{QS = QR + RS}[/tex]

[tex]\mathbf{PS = PR + RS}[/tex]

The given parameters are:

[tex]\mathbf{PS = 21}[/tex]

[tex]\mathbf{PR = 16}[/tex]

[tex]\mathbf{PQ = RS}[/tex]

Substitute the above values in [tex]\mathbf{PS = PR + RS}[/tex]

[tex]\mathbf{21= 16 + RS}[/tex]

Solve for RS

[tex]\mathbf{RS = 21- 16}[/tex]

[tex]\mathbf{RS = 5}[/tex]

This means that:

[tex]\mathbf{PQ = RS = 5}[/tex]

Substitute 5 for PQ in [tex]\mathbf{PR = PQ + QR}[/tex]

[tex]\mathbf{PR = 5+ QR}[/tex]

Substitute [tex]\mathbf{PR = 16}[/tex] in [tex]\mathbf{PR = 5+ QR}[/tex]

[tex]\mathbf{16 = 5+ QR}[/tex]

Solve for QR

[tex]\mathbf{QR = 16 - 5 }[/tex]

[tex]\mathbf{QR = 11}[/tex]

Hence, the value of QR is 11

Read more about collinear points at:

https://brainly.com/question/1593959

1.1f Homework: Creating and Solving Linear Equations to Model Real World Problems Part I
he document will
1) Use the story below about Sanjeet and his friends' end-of-season basketball statistics to answer the
questions that follow.
Story
Points Scored
Terrence's points:
Sanjeet and his teanit members were looking
Sanjeet's points:
Cole's points:
at the total points scored by each player
during the season. Sanjeet scored twice ay
many pointy ay Terrence. Cole scored 12
more points than Sanjeet. Together the boys
scored 992 points during the season. How
many points did each boy score?
Equation:

Answers

The document is about idhbifyfcgo

Does anyone know how to do this?

Answers

to find the midpoint of a line segment
Add both "x" coordinates, divide by 2.
Add both "y" coordinates, divide by 2.

What is f(-2) of the function given below? *
f(x) = 3x2 - 4x + 1

Answers

Answer:

f(-2) = 21

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 4x + 1

f(-2) is x = -2

Step 2: Substitute and Evaluate

f(-2) = 3(-2)² - 4(-2) + 1

f(-2) = 3(4) + 8 + 1

f(-2) = 12 + 9

f(-2) = 21

write 10 places in India and write their population in Indian and international system​

Answers

Answer Expert Verified

4.4/5

97

Golda

Ace

2.9K answers

3.5M people helped

Solution :-

Following are the population of five major cities of India according to the Census of 2011.

1) Mumbai  

a) Indian System :

1,24,42,373 - One Crore Twenty Four Lakh Forty Two Thousand Three Hundred Seventy Three.

b) International system :

12,442,373 - Twelve Million Four Hundred Forty Two Thousand Three Hundred Seventy Three.

2) Delhi  

a) Indian System :  

1,10,34,555 - One Crore Ten Lakh Thirty Four Thousand Five Hundred Fifty Five.

b) International System :

11,034,555 - Eleven Million Thirty Four Thousand Five Hundred Fifty Five.

3) Bangalore  

a) Indian System :

84,43,675 - Eighty Four Lakh Forty Three Thousand Six Hundred Seventy Five.

b) International system :

8,443,675 - Eight Million Four Hundred Forty Three Thousand Six Hundred Seventy Five.

4) Hyderabad  

a) Indian System :

67,31,790 - Sixty Seven Lakh Thirty One Thousand Seven Hundred Ninety.

b) International System :

6,731,790 - Six Million Seven Hundred Thirty One Thousand Seven Hundred Ninety.

5) Ahmedabad  

a) Indian System :  

55,77,940 - Fifty Five Lakh Seventy Seven Thousand Nine Hundred Forty.

b) International System :

5,577,940 - Five Million Five Hundred Seventy Seven Thousand Nine Hundred Forty.

Answer:

Mumbai 12,442,373Delhi 11,007,835Bangalore 8,436,675Hyderabad 6,809,970Ahmadabad 5,570,585Chennai 4,681,087Kolkata 4,486,678Surat 4,467,797Pune 3,124,458Jaipur 3,046,163.

Step-by-step explanation:

Please a Brainliest

Comment me if you want to help me find my lost love

WILL GIVE BRAINLYIEST Which item, A or B has a higher overall net force? Show your work and include units.

Answers

Answer:

a does because 5-3= 2 net force to the right and b would total out to 1 to the right

Step-by-step explanation:

Please help due tonight very urgent being graded need help please Tom makes $25 an hour working at the local video game store. Over the past year he has saved $150 toward a new iPhone. If the iPhone cost $300, how many hours will he need to work to be able to buy the iPhone? make an equation or inequality and solve. Show your work

Answers

Hey there! I'm happy to help!

Tom has 150 already saved and for every hour he works, he will gain an extra $25. After h hours, he will have $300,

So, we multiply 25 by n, because for every hour he will have 25 added to his total, and repeated addition is multiplication, so we multiply 25 by n.

We add 150 as that is what we already have saved.

Finally, we want this to equal 300.

So, here is our equation.

25n+150=300

Now we solve. We subtract 150 from both sides.

25n=150

We divide both sides by 25.

n=6

Tom will have to work six hours to buy the iPhone.

Have a wonderful day! :D

Answer:

25(6)+150=300

Step-by-step explanation:

25x+150=300

25x=300-150

25x/25=150/25

x=6

HELP ME PLSEASE I NEED THIS <33

Answers

Since the measure of angle DOC = 44 degrees and it's the central angle of arc DC, the measure of arc DC = 44 degrees

{(1, 3), (2,5), (-3, -4), (4, -3) (5,-1)} the above is
a function or not a function

Answers

the answer is it is function

in a class of 35 students 19 take Spanish, 18 take French and 3 take neither. Calculate how many take:
a) both French and Spanish
b) just Spanish
c) just French ​

Answers

Xi think its just Spanish. Dry if it's wrong

Answer:

Hope that will help you

(-6) to the power of negative 5 in fraction form ,

Answers

Answer:

-6430041/50000000000

Step-by-step explanation:

so -6 to the power of negative 5 is -0.00012860082 which as a fraction is -6430041/50000000000

Mt. Everest is 29,029 feet above sea level. The dead sea is 1,411 feet below sea level what is the difference between the elevations?

Answers

Answer:

30,440 feet

Step-by-step explanation:

You simply just add 29,029 and 1411 because if you picture it on a number line, 29,029 would be to get to zero as well as 1411 going up in elevation.

Write the equation for the transformation of f(x) = |x| as shown in the graph.

Answers

Answer:

f(x)= 3|x-3|+1

Step-by-step explanation:

Reason why it's not +3 is because it's the reverse when graphed. But that only applies for the numbers in the brackets. If it's in the brackets and it's positive, you go to the left. If it's negative, then it goes to the right. And as you see, the V isn't on the point (0 , 3), and is in fact, above it, by 1. The graph has also been stretched vertically by 3, it looks like. Hope that was helpful for you!

Answer:

y = 2|x-3| + 1

Step-by-step explanation:

The vertex of g(x) = |x| is at (0,0)

We have moved the vertex to ( 3,1)

y = f(x) + C  C > 0 moves it up

y = |x| + 1 for the shift up 1

y = f(x + C)  C < 0 moves it right

y = |x-3|  for the shift to the right 3

y = Cf(x)  C > 1 stretches it in the y-direction

y = 2|x| since  it is stretched by a factor of 2 in the y direction

Combining

y =2|x-3| + 1

write an equation to represent m varies inversely as the square of q ?​

Answers

Answer:

m = [tex]\frac{k}{q^2}[/tex]

Step-by-step explanation:

Given m varies inversely as q² then the equation relating them is

m = [tex]\frac{k}{q^2}[/tex] ← k is the constant of variation

Resolved

1. 2(y+4) +4 (2y+2)



Answers

Answer:

10y+16

Step-by-step explanation:

Distribute and combine like terms

Michael and Pedro both solved the equation: -5 + 7p + 14 + 11p = 9 (2p + 1) Michael says that there are no solutions to the equation. Pedro says that there are infinitely many solutions. Who is correct?

Answers

Answer:

Step-by-step explanation:

-5 + 7p + 14 + 11p = 18p + 9

18p + 9 = 18p + 9

0 = 0

Pedro is correct

In the
Pythagorean
Theorem what is
c known as?

Answers

The hypotenuse(the number with the greatest value)
The hypotenuse.
Explain:

Find the coordinate of the midpoint of the segment formed by the given points: (7, 11) and (3, -5)

Answers

Answer:

[tex]MP = (5,3)[/tex]

Step-by-step explanation:

[tex]MP= (\frac{x_1+x_2}{2}) (\frac{y_1+y_2}{2} )\\MP= (\frac{7+3}{2}) (\frac{11+-5}{2} )\\MP= (\frac{10}{2}) (\frac{6}{2} )\\MP= (5,3)[/tex]

My brother ate 4 of the cupcakes my mother just finished baking for her back sale. That was 2/5 of all of them! With how many cupcakes did she start with?

Answers

Answer:

10

Step-by-step explanation:

if 4 cupcakes were 2/5 of what she started out with, i divided 4/2 and got 2 so 2 cupcakes per 1/5, 2*5=10 so 5/5 is the 10 cupcakes

That passes through (-4,0) and is parallel to y= -2x+1

Answers

Answer:

y = -2x - 8

Step-by-step explanation:

Parallel lines always have the same slope. Here, it is -2.

So, our equation so far looks like this:

y = -2x + b, where b is the y-intercept

We need to find b. We know our line passes through (-4, 0), so let's plug -4 in for x and 0 in for y:

y = -2x + b

0 = -2 * (-4) + b

0 = 8 + b

b = -8

Since b = -8, our equation is thus y = -2x - 8.

~ an aesthetics lover

what is (3x – 2)(4x + 1) =

Answers

Answer:

[tex]12x^{2} -5x -2[/tex]

Step-by-step explanation:

We multiply the first term 3x by 4x and then 3x multiplied by one. We proceed to multiply by -2 by 4x and multiplied by -2 +1. We finally add and get the result.

[tex]12x^{2} -5x -2[/tex]

why did the chicken cross the road

Answers

Answer:

To get to the other side

Obviously

Answer:

"To get to the other side".

What is even the point of that "joke"?:

"Why did the chicken cross the road?" is a common riddle joke, with the answer being "To get to the other side". It is an example of anti-humor, in that the curious setup of the joke leads the listener to expect a traditional punchline, but they are instead given a simple statement of fact.

can someone help me?
thanks​

Answers

Answer:

A

Step-by-step explanation:

2w means 2 pounds per week

you need less than or equal to because think about it like this

you want to be LESS THAN or EQUAL TO 190 pounds. on the right side is reality , what you really are. you need the right side to be LOWER or EQUAL to the left side!

Other Questions
Factor Completely 4x^3 - 6x^2 + 16x - 24 Es posible que yo ______ comido demasiado. walmart sells the bike he likes for 350 dollars Walmart had the bike on sell for 30% off what is the cost of the bike at Walmart Which of these lines from the poem describes Beowulf? please help Why did the Constitution not get signed right away? Find the average rate of change in the price of gasoline from 2006 to 2008YearCost2005$2.312006$2.622007$2.842008$3.302009$2.412010$2.842011$3.582012$3.68.$0.34/year.$0.28/yearC.$0.32/yearD. $0.35/year 4 reasons why people settled in new england? Which of these choices is NOT a culture influence on our wellness? Which of these is a unit rate? A $25 per 5 hours B 10 kilometers per minute C 35 miles per 4 gallons D 75 yards per 25 dollars Olly & Sons is a construction company. The company started the year with $90,000 in the land account. During Year 2, Olly & Sons purchased multiple lots of land. The first lot cost $25,000, the second lot cost $28,000 and the third lot cost $31,000. The company sold one lot that had a cost of $50,000 for $50,000. What is the ending balance in the land account? Describe the type of rule which King Phillip II believed in. A magnetic field is created by ____.A moving electric chargesb elctromagnetic pulses c a strong currentd a change in the current of a wire Explain- the 8 characteristics that are required for life What country became communist in 1917? The graph of y = f(x) is shown below. What are all of the real solutions of f(x)= 0? Reduce to the simplest form. -9/6 + (-3/5) what is the square route of 36+2 An airline records data on several variables for each of its flights, model of plane, amount of fuel used, time in flight,number of passengers, and whether the flight arrived on time. The number and type of variables recorded are1 categorical, 4 quantitative (1 discrete, 3 continuous)O 3 categorical, 2 quantitative (1 discrete, 1 continuous)O 1 categorical, 4 quantitative (2 discrete, 2 continuous)2 categorical, 3 quantitative (1 discrete, 2 continuous)O 2 categorical, 3 quantitative (2 discrete, 1 continuous) The following value is closest to what number? 292 Which of the following statements best describes why most of Africa was under European colonial rule during the 19th century? A. The Europeans needed more places to grow crops. B. The Europeans wanted to control natural resources found there. C. The Europeans wanted to spread democracy and capitalism. D. The Europeans needed new places to live.