find the zeros of f(x)=x^2+2x-8

Answers

Answer 1

Answer:

(x - 2) (x +4)

Step-by-step explanation:

Find what two numbers multiplied make -8 and those same numbers will equal 2 when they are subtracted. So...

4 x -2 = 8

4 - 2 = 2

So, (x - 2) (x + 4)

Answer 2

Answer:

(2,-4)

Step-by-step explanation:


Related Questions

Simplify 4+(-3)-2x(-6)

Answers

Answer:

1+12x

Step-by-step explanation:

First remove the parentheses

4-3-2x✖️(-6)

two negatives make a positive so multiply them

4-3+2x✖️6

Now calculate the product

4-3+12x

Subtract 4-3

1+12x

Then you are left with your answer:

1+12x

Hope this helps! :3

What’s 5.5454 rounded to 2 decimal place

Answers

Answer:

The answer is 5.55

Step-by-step explanation:

Final answer:

To round 5.5454 to 2 decimal places, you look at the third and fourth decimal places. Since the digit in the fourth decimal place is 5 or greater, you round up the digit in the third decimal place, resulting in 5.55.

Explanation:

To round 5.5454 to 2 decimal places, we look at the digit in the third decimal place (5) and the digit in the fourth decimal place (4). Since the digit in the fourth decimal place is 5 or greater, we round up the digit in the third decimal place.

The rounded value will be 5.55.

Therefore, 5.5454 rounded to 2 decimal places is 5.55.

Learn more about Rounding here:

https://brainly.com/question/34045884

#SPJ2

There are 20 tables in the cafeteria. 1/5 of them are rectangle shaped. How many tables are rectangle shaped?

Answers

4 because 4x5=20 and 20 divided by 5 is 4

Answer:

4

20 ÷1/5= 4

So four tables

Two arcades charge an entrance fee and a fee per game. At Arcade A, the total cosi y (in dollars) of playing 2 games is represented
by the linear function y=0.75.2 + 2. The table shows the total cost for playing I games at Arcade B. Determine which arcade is
described by each phrase below.
Number of Games,
0
4
8
12
Total Cost (dollars), y
8
10
12
14
Arcade A
Arcade B

higher fee per game
higher entrance fee
higher total cost for 8 games

Answers

Answer:

Part a) Higher fee per game Arcade A

Part b) Higher entrance fee Arcade B

Part c) Higher total cost for 8 games Arcade B

Step-by-step explanation:

Let

x------> the number of games

Arcade A

we have that the linear equation is

[tex]y=0.75x+2[/tex]

The fee per game is $0.75

The entrance fee is $2

The cost for 8 games is equal to

[tex]y=0.75(8)+2=\$8[/tex]

Arcade B

Find the linear equation

Let

[tex]A(0,8),B(4,10)[/tex]

Find the slope of the line (fee per game)

[tex]m=\frac{10-8}{4-0}=0.50[/tex]

The point A is the y-intercept

The linear equation is

[tex]y=0.50x+8[/tex]

so

The fee per game is $0.50

The entrance fee is $8

The cost for 8 games is equal to

[tex]y=0.50(8)+8=\$12[/tex]

therefore

Part a) Higher fee per game Arcade A

Part b) Higher entrance fee Arcade B

Part c) Higher total cost for 8 games Arcade B

Sonji paid $25.00 for two scarves, which were different prices. When she got home she could not find the receipt. She
remembered that one scarf cost $3 more than the other. What was the price of the more expensive scarf?

Answers

Let the less expensive scarf be x

expensive scarf = $3 + x

According To The Question,

x+x+$3=$25

2x+$3=25

2x=22

x=$11

expensive scarf = x + $3 = $11 + $3 = $14

HOPE THIS WILL HELP YOU

Answer:

$14

Step-by-step explanation:

Sony paid for two scarves = $ 25

We are given that one scarf cost $3 more than the other

Let the cost of one scarf be x

So, cost of another scarf = x+3

Since the total cost is $25

So, [tex]x+x+3=25[/tex]

[tex]2x+3=25[/tex]

[tex]2x=22[/tex]

[tex]x=\frac{22}{2}[/tex]

[tex]x=11[/tex]

So, cost of one scarf = $11

Cost of another scarf = x+3=11+3=14

Hence the cost of the expensive scarf is $14

Solve the system of linear equations.

x-y=5
-x+y=5

Is the answer H, I, J, or K

H. infinitely many I. no solution J. (0,5) K. (5,0)

Answers

Answer:

I would be our answer.

Step-by-step explanation:

So we need to solve both.

x-y=5 = 5.

And we also need to solve -x+y=5.

Let's regroup them.

[tex]y-x=5[/tex]

Now we needt to subtract y from both sides.

[tex]-x = 5 -y[/tex]

Now let's multiply both sides by -1.

[tex]x = -5 + y[/tex]

Then we finally get

x = y - 5

Our final answer is I, there is no solution for this problem.  Yes, they both equal 5 but do not fit any of the answers.

Thanks for using Brainly, have an amazing day.

Find the coordinates of the vertices of the figure after the given transformation. translation: (x, y)→(x + 1, y - 1) A) N'(0, -2), F'(4, 2), Q'(4, -2) B) N'(-1, 1), F'(3, -3), Q'(3, 1) C) N'(0, -1), F'(4, 3), Q'(4, -1) D) N'(0, -5), F'(4, -1), Q'(4, -5)

Answers

Answer:a

Step-by-step explanation:

The coordinate of the vertices after transformation N'= (0, -2), F'= (4, 2), and Q'= (4, -2) option (A) is correct.

What is geometric transformation?

It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have:

The coordinates are:

N(-1,-1), F(3,3), Q(3,-1).

Transformation rule:

(x,y) → (x+1, y-1)

N'= (0,-2)

F'= (4,2)

Q'= (4,'2)

Thus, the coordinate of the vertices after transformation N'= (0, -2), F'= (4, 2), and Q'= (4, -2) option (A) is correct.

Learn more about the geometric transformation here:

brainly.com/question/16156895

#SPJ5

A sports bag has 40 golf balls. Some are yellow and some are white.There are 7 white golf balls for every yellow golf ball. How many white golf balls are there in the bag.

Answers

Answer:

35 white balls.

Step-by-step explanation:

you need to multiply 7 * some constant c and do the same to 1. The total has to come out to 40

7*c + c = 40      Combine the terms on the left.

8c = 40              Divide by 8

8c/8 = 40/8

c = 5

So the balls are in the ratio of

5*7 + 5 = 40

The side of a square measures 3mn2. What is the area of the square if m = 4 and n = -2?

Answers

The area of the square is 2304 square units.

How to calculate the area of the square from theinformation mentioned in the question ?

Given the side of the square measures [tex]3mn^{2}[/tex]

We have to find the area of the square when m = 4 and n = -2

Putting the value of m and n in the expression to get the value of side of the square -

Side = [tex]3mn^{2}[/tex] = [tex]3*4*(-2)^{2}[/tex] = [tex]48[/tex]

Thus the length side of the square is 48 units.

As the square has all of its 4 sides equal, thus the area of the square is = side*side .

Area of the given square = side*side = 48*48 = 2304 square units.

To learn more about Area of square, refer -

https://brainly.com/question/4102299

#SPJ2

A quadratic function has these characteristics:
x = 1 is the equation for the axis of symmetry.
x = –1 is an x-intercept.
y = –4 is the minimum value.
Determine the y-intercept of this parabola.

Explain your thought process.

Answers

Answer:

The y-intercept would be between 0 and -4 likely about -3.

Step-by-step explanation:

The y-intercept would be between 0 and -4 likely about -3.

Since the parabola has an axis of symmetry at x = 1 and a minimum of y = -4 then the vertex is (1,-4).

It has an x-intercept at x = -1 or (-1,0). This means from the vertex up to the x-intercept the function has to cross through the y-axis. This makes the y-intercept between 0 and -4 and likely at -3.

Final answer:

The y-intercept of the quadratic function given above is found to be at y = -3. This conclusion is reached by analyzing the vertex, its symmetry, and x-intercepts of the function, and applying these properties in the standard form of a quadratic function.

Explanation:

The subject of this question is the properties of a quadratic function in mathematics. The given characteristics provide us with enough information to determine the y-intercept of the function. Let's analyze the information.

Since the axis of symmetry is 'x = 1', we know that the vertex of the parabola is at (1, y). Also, because it has a minimum value of 'y = -4', we know the y-coordinate of the vertex is -4. Therefore, the vertex of the parabola is at (1, -4).

An x-intercept at 'x = -1' means that (-1, 0) is a point on the parabola. From the nature of the symmetry of parabolas, we know that if there is a point (a, 0) on the parabola, there will also be a point on the other side of the axis of symmetry at (2h-a, 0), where 'h' is the x-coordinate of the vertex. So, we can calculate the other x-intercept as (2*1 - (-1), 0), which gives us (3, 0). Thus, a point on the parabola is also (3, 0).

Equipped with the vertex (1, -4) and a point on the parabola (3,0), we can use the form of a quadratic function y = a(x-h)² + k to determine the quadratic function. Substituting coordinates of the vertex into the formula for h and k, and the coordinates of the point into the formula for x and y, we get 0 = a(3-1)² + (-4). From that, we can solve for 'a', which equals 1.

So, our quadratic function is y = (x-1)² - 4. To find the y-intercept (the point where the function crosses the y-axis, where x=0), we substitute x=0 into our function, which yields y = (0-1)² - 4 = -3.

The y-intercept of the parabola is at y = -3.

Learn more about Quadratic Function here:

https://brainly.com/question/35505962

#SPJ3

Selina is playing a game that uses the spinner below.
A) what are the odds in favour of her spinning a 7?

B) What are the odds in favour of her spinning an even number?

C) What are the odds in favour of her spinning a prime number?

Answers

Answer:

A) 12.5%

B) 50%

C) 50%

Step-by-step explanation:

For A, 7 is one of the 8 possibilities (1/8). 1/8 of 100 is 12.5, so your chance of spinning a 7 is 12.5%

For B, even numbers are 4/8 or 1/2 of your options. 1/2 of 100 is 50, so your chance of spinning an even number is 50%

For C, there are 4 out of 8 numbers that are prime (2,3,5, & 7).

4/8 or 1/2 of 100 is 50, so your chance of spinning a prime number is 50%

hope this helps

Harry's uncle gave him $62 to spend on basketball equipment. He bought 2 jerseys that cost $4 each, a basketball that cost $19, and a pair of shorts that cost $5. How much money does Harry have left?

Answers

Final answer:

Harry spent a total of $32 on basketball equipment, and since he started with $62, he has $30 left.

Explanation:

To calculate how much money Harry has left after purchasing basketball equipment, we need to add up the total cost of the items he bought and subtract that from the amount of money he was initially given. Harry bought 2 jerseys at $4 each, 1 basketball at $19, and a pair of shorts at $5.

Cost of 2 jerseys: 2 × $4 = $8

Cost of basketball: $19

Cost of shorts: $5

Now, we'll sum up the costs of these items to find the total expenses.

Total expenses = $8 + $19 + $5 = $32

Next, we'll find out how much money Harry has left after these purchases:

Money left = Initial amount - Total expenses

Money left = $62 - $32 = $30

So, Harry has $30 left after buying the basketball equipment.

How many times can 20 go into 16

Answers

♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫

➷The answer is that 20 goes into 16 1.25 times.

Explanation: You can use a calculator, and you just divide 20 by 16. Or, you can divide 20 and 16 both by 4. since you are dividing by four, and there are 5 fours in 20, you could know that 5*0.25 is 1.25, which is the answer. The fraction form is 1 1/4.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

DOGE

20 cannot go into 16 a whole number of times, but in terms of decimal division, 20 goes into 16 exactly 0.8 times.

The question asks how many times 20 can go into 16. In mathematical terms, this is asking for the result of dividing 16 by 20. Since 20 is larger than 16, 20 cannot go into 16 a whole number of times. However, if we are considering division in terms of fractions or decimals, 20 goes into 16 exactly 0.8 times because 16 divided by 20 equals 0.8.

“The height of an arrow” NEED HELP WITH THIS QUESTION ASAP!

Answers

Answer:

a) t = 0.54 seconds

b) t = 8 seconds

Step-by-step explanation:

Given in the question the equation

h = 40t - 5t²

where h is height in meters

            t is time in seconds

Time it took to reach 20 meters

20 = 40t - 5t²

-5t² + 40t - 20 = 0

by using quadratic formula for factorisation

t = (-b± √(b)² - 4(a)(c) ) / 2(a)

t = 0.54 (upward motion)

or

t = 7.46 (downward motion)

b) Time it took to reach the ground

at ground h = 0

So,

0 = 40t - 5t²

t(40 - 5t ) = 0

t = 0 (at starting point)

or

40 -5t = 0

5t = 40

t = 40 /5

t = 8 seconds

Plz help!!!!!!!!!!!!!!!

Answers

Answer:

B. 86.7 cm²

Step-by-step explanation:

We have the square and four triangles.

The formula of an area of a squre:

[tex]A_s=a^2[/tex]

We have a = 5.1 cm. Substitute:

[tex]A_s=(5.1)^2=26.01\ cm^2[/tex]

The formula of an area of a triangle:

[tex]A_t=\dfrac{ah}{2}[/tex]

We have a = 5.1 cm and h = 5.95 cm. Substitute:

[tex]A_t=\dfrac{(5.1)(5.95)}{2}=\dfrac{30.345}{2}=15.1725\ cm^2[/tex]

The Surface Area of the pyramid:

[tex]S.A.=A_s+4A_t[/tex]

Substitute:

[tex]S.A.=26.01+4(15.1725)=26.01+60.69=86.7\ cm^2[/tex]

A system of 3 linear equations in 3 variables is consistent and independent. How many solutions to the system exist

Answers

Answer:

One solution

Step-by-step explanation:

By definition:

A system of linear equations is classified according to the number of solutions such as:

* Consistent: If the system has at least one solution.

* Inconsistent: If the system has no solution

Then, the systems of consistent linear equations are classified as:

* Independent: If the system has only one solution

* Dependents: If the system has endless solutions.

Thus. A consistent and independent system of equations has only one solution

Leon is helping his baby sister Daphne eat her dinner. There are 121212 peas left in Daphne's bowl and 777 peas squished in her hair.
What is the ratio of peas in Daphne's bowl to peas in her hair?

Answers

Answer:

777:121212 is peas in her hair to peas left in her hair.

Answer:

12:7

Step-by-step explanation:

i had it on khan academy

Find the totals of the two animals people owned most. What is the sum of these two categories?
A) 17
B) 18
C) 19
D) 20

Answers

The answer is 19, C, because the 2 biggest are cat & dog, the dog is 8 and the cat is 11, 11+8=19.

20) Use the distributive property to factor the expression. 10xz − 20yz A) z(10x − 20y) B) 10(xz − 2yz) C) 10z(x − 2y) D) xyz(10 − 20)

Answers

Answer:

The correct answer is C) 10z(x − 2y)

Step-by-step explanation:

To find this, we look for the greatest common factor of those two numbers. Each can be divided by 10 and each have a z. So we divide each term by 10z and put that on the outside of the parenthesis.

0.9, 82 hundredths,5tenths least to greatest

Answers

5 tenths, 82 hundredths, 0.9

Answer:

5 tenths, 82 hundredths, 0.9

Step-by-step explanation:

Let's convert these all to a decimal...

5 tenths = 5/10 which is 0.5

82 hundreths = 82/100 which is 0.82

0.9 = 0.9

Now you can order them can't you?

0.5, 0.82, 0.9

{-3 - y = -12
{ x - 3y = 14

Answers

Answer:

y = 15

x = 59

Step-by-step explanation:

move the -3 over to the -12 side. then divide by -1 on both sides getting:

{ y = 15

{ x- 3y = 14

change the y in the second equation to get:

x - 3 (15) = 14

x - 45 = 14

  +45 = +45

x = 59

hope this helps!!

Hassan bought 2 video games for $5 and 3 video games for $7.50. Write and solve an equation to find the cost of 15 video games.

Answers

Answer:

hi how are u

Step-by-step explanation:

A pie is cut into 9 equal pieces. If all but 3 pieces are eaten, how of the pie remains?

Answers

Answer:

1/3 or 3

Step-by-step explanation:

9-6 = 3

Answer:

Step-by-step explanation:

Please Help, thank you!

Which list is in order from largest to smallest?
A.
0.6 × 10-4 , 1.1 × 10-3 , 1.1 × 10-4
B.
1.1 × 10-3 , 1.1 × 10-4 , 0.6 × 10-4
C.
1.1 × 10-3 , 0.6 × 10-4 , 1.1 × 10-4
D.
0.6 × 10-4 , 1.1 × 10-4 , 1.1 × 10-3

Answers

A= 3.6, 7.7, 6.6

B= 7.7, 6.6, 3.6

C= 7.7, 3.6, 6.6

D= 3.6, 6.6, 7.7

.•. B is the answer

*if not done by BODMAS

A= 2, 8, 7

B= 8, 7, 2

C= 8, 2, 7

D= 2, 7, 8

.•. B is the answer

*if done by BODMAS

hope it helps you mate thanks for the question and if possible please mark it as brainliest

A student wants to reduce the size of a photograph that is 12 inches wide. She selects 75% on the photocopy machine. What will be the width of the copy?

Answers

Answer:

9 inches

Step-by-step explanation:

The length and width of the photograph will become 75% of the original dimensions. The original width is 12 inches. The reduced with is 75% of 12 inches. To find a percent of a number, multiply the percent by the number. Change the percent to a decimal by dividing the percent by 100, which means move the decimal of the percent two places to the left.

75% of 12 inches =

= 0.75 * 12 inches

= 9 inches

Answer: 9 inches

Step-by-step explanation:

75% of 12

75%=0.75

0.75 x 12= 9

9 inches

Karim builds a wooden table.

Answers

Substitute given values into the formula for the area of a rectangle.

3^7 = 3^4 x W

2187 = 81 x W

Solve for Width

W = 27

Your answer is: 27 Inches.

The bases of a trapezoid are 4 yards and 6 yards. The height of the trapezoid is 5 yards. What is the area of the trapezoid?

Answers

Final answer:

The area of a trapezoid with bases of 4 yards and 6 yards, and a height of 5 yards is calculated using the formula (1/2)*height*(sum of the bases). By substituting the given measurements, the area comes out to be 25 square yards.

Explanation:

The area of a trapezoid can be calculated using the formula: Area = ½×(height)×(sum of the bases). Given the measurements of a trapezoid with bases of 4 yards and 6 yards, and a height of 5 yards, we apply the formula:

Area = ½×(5 yards)×(4 yards + 6 yards)

First, sum the lengths of the bases:

4 yards + 6 yards = 10 yards

Then, substitute the sum of the bases and the height into the formula:

Area = ½×(5 yards)×(10 yards)

Area = ½×(50 yards²)

Area = 25 yards²

Therefore, the area of the trapezoid is 25 square yards.

If Mike has m pencils and Jen has 3 more pencils than Mike, how many pencils do they have together?

Answers

Answer:

you have to find out what Mike has the multiple its by 3 ofc so let's say Mike had 4 they would have 12 together

Can you guys please help me out

Answers

a. term

because signing a policy would mean signing a term agreement paper..

hope this helps!!

What is the angles listed from descending order?

Answers

Answer:

RQ, RP, PQ

Step-by-step explanation:

The side opposite the largest angle is the largest side

Angle P at 105 is the largest angle so RQ is the largest side

Next largest angle is  Q at 75, so RP is opposite it

The smallest angle is R, so the smallest side is opposite it, which is PQ

From largest to smallest

RQ, RP, PQ

Answer:

The correct answer is option 2

RQ > PQ > RP

Step-by-step explanation:

From the figure we can see that, a triangle PQR.

Three angles are given.

The angles are, <P = 105°, <R = 40° and <Q = 35°

To find the order of sides

We know that, the side opposite to the largest angle is the largest side, So we can write the three sides are in ascending order,

RQ > PQ > RP

Therefore the correct answer is option 2

Other Questions
Hindu art often shows gods with many arms and faces. Why are the gods so depicted? The arms and faces are needed to balance the art. The arms and faces are symbols of power and wisdom. The many arms and faces make the art more graceful and beautiful. It is thought that gods have a different form than man. How much money has to be invested at 2.9% interest compounded continuosly to have 34,000 after 18 years Is the salt water colon cleanse safe for teens? How did the allies liberate Europe and defeat Germany? Given the geometric sequence where a1=3 and the common ratio is -1, what is the domain for n? Please help- award 30 pointsBrad and Lee are cycling in opposite directions. Brad is cycling at 24mph and Lee is cycling at 33mphWhy does it seem to Brad that Lee is travelling faster than he actually is? The paragraph is part of a personal essay. Its complete except for its final sentence. Use the answers below to (a) correctly complete the paragraph and (b) identify the type of paragraph youve completed: What liver secretion is responsible for the emulsification of lipids in the duodenum? Which choice correctly compares the two numbers?A)20.82 > 20.55B)21.02 < 20.55C)21.05 < 20.30D)21.22 > 21.30 Mike is renting a boat. The hourly rental fee is the same per hour for any boat. Mike paid $50 to rent a canoe, and then $25 to rent a kayak. which is the dependent variable in the situation! read the following passage from the drama DONALD well , it wouldn't be a bad idea to have a "safety school" in case you're not accepted yo the art program at parsons .GEMMA oh , you would say that! you're not a artist - you don't know what it means to sacrifice for your craft! There is no "safety school" for me! it simply Haas to be parsons . It has to!what does this interaction reveal about gemma? A.she is given extremes of emotioin B.she works and plays hardC.she thinks art is more important than educationD,she feels unappreciated by others The discoveries of astronomers like Copernicus and Galileoestablished that the universe was sun-centered, or heliocentric.reinforced most of the traditional teachings of philosophers and the Church.were supported by most scientists of the time.proved that ancient philosophers, like Ptolemy, were correct in their views of how the universe works. A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x overbar, is found to be 109, and the sample standard deviation, s, is found to be 10. (a) Construct a 96% confidence interval about mu if the sample size, n, is 29. (b) Construct a 96% confidence interval about mu if the sample size, n, is 25. (c) Construct a 90% confidence interval about mu if the sample size, n, is 29. (d) Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed? LOADING... Click the icon to view the table of areas under the t-distribution. At what value of x does the graph of the following function F(x) have a vertical asymptote?F(x)= [tex]\frac{2}{x-2}[/tex]A. 2B. -2C. 0D. -1 Write the equation that represents the line use exact numbers Carter's telephone bill is automatically deducting $48 from his bank account every month. How much will the deductions total for the year? PLEASE HELP : A cylindrical fish tank has a base radius of 7 inches . The volume of the tank is approximately 3,080 cubic inches . What is the approximate height of the fish tank A) 62 in. B) 20 in C) 11in D) 10 in Janice bought her mother a bunch of 10 flowers two of the flowers are daisies one half of the remaining flowers are tulips write the fraction of the flowers that are daisies At least how many times must you flip a fair coin before there is at least a 50% probability that you will get at least three heads? Explain the following statement. A stock held as part of a portfolio is generally less risky than the same stock held in isolation. Please answer immediately!!!!! Steam Workshop Downloader