Solve: 0=-x2+2x+8

[tex]0=-x2+2x+8[/tex]

Answers

Answer 1

Answer:

x = 4

x = -2

Step-by-step explanation:


Related Questions

Consider the angle 0.
What is the value of the ratio opposite/adjacent

Answers

Answer:

Step-by-step explanation:

12/5

as a mixed fraction 2 2/5

or as decimal 2.4

2/5 > 1/2 or 2/5 <1/2

Answers

Answer:

It's 2/5 <1/2.

Here is a Thought anyways im out

You know when you drop a plate and it shatters?, and if you say sorry to the plate it wont be one whole plate again... now replace that plate with someones heart. A "sorry" doesnt make a shattered heart a whole heart again.

Answers

Answer:

royal stuff

Step-by-step explanation:

I'm sorry if anyone's broken ur plate:(

Answer:

The answer is 0

Step-by-step explanation:

Deep thoughts

Brandon has a points card for a movie theater. He receives 70 rewards points just for signing up. He earns 12.5 points for each visit to the movie theater. He needs 145 points for a free movie ticket. How many visits must Brandon make to earn a free movie ticket?

Answers

Answer: x=6

Step-by-step explanation:

Answer:

placeholder going to the bathroom brb

Step-by-step explanation:

Which of the following is equivalent?

Answers

I am not sure my fault


At 12:45 Jimmy left his home in Pinetrees and cycled to visit his grandmother in Oakville. On his
way he stopped for 10 minutes in Rowan for a coffee and then he popped in to see his friend in
Yewton. He arrived in Oakville at 16:25. Jimmy cycled at a steady speed of 24 km/h and his
average speed for the whole journey, including the stops, was 18 km/h.
For how long did Jimmy stop in Yewton?
А
40 minutes
B
45 minutes
C
55 minutes
D
60 minutes

Answers


t=45min
d=4km

45min/60min = 0.75 hours

v=d/t
v=4km/0.75hours
v=5.33km/hour. So the answer is B. 45 minutes.

Jimmy stopped in Yewton for 45 minutes if Jimmy cycled at a steady speed of 24 km/h and his average speed for the whole journey, including the stops, was 18 km/h.

What is the distance?

Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.

It is given that:

At 12:45 Jimmy left his home in Pinetrees and cycled to visit his grandmother in Oakville.

Let x be the total time Jimmy stops in Yewton:

Total time for the journey = 220 minutes (12:45 to 16:25)

As we know:

distance = speed×time

24(220 - 10 - x) = 18(220)

220 - 10 - x = 165

x = 210 - 165

x = 45 minutes

Thus, Jimmy stop in Yewton for 45 minutes if Jimmy cycled at a steady speed of 24 km/h and his average speed for the whole journey, including the stops, was 18 km/h.

Learn more about the distance here:

brainly.com/question/26711747

#SPJ2

can you help me please ​

Answers

Answer:

your answer will be 3.8928

Step-by-step explanation:

have a nice day bye ^_^

3.89 is the right answer believe me or not

please help fr i don’t understand this

Answers

Answer:

A.    

   

Hope that helps!

Step-by-step explanation:

Answer:

the answer is A I believe good luck

David has 54 marbles, 24 of which are black, 18 are red, and 12 are blue. What fraction represents the ratio of black marbles to blue marbles?

Answers

24/12 or 1/2 (if you want it simplified)

This is because the number of black marbles are 24 and blue marbles are 12, you can just put into a fraction like that :)

What is bigger 4.62 or 4.24

Answers

Answer: 4.62 is bigger than 4.24

Step-by-step explanation:

Bianca makes an error when she tries to write an expression equivalent to
12 + 15(3 - y) - 10y. What is the error? Fix Bianca's error.
I NEED HELP ASAPPPPPP!!!

Answers

Answer:

57 - 25y

Step-by-step explanation:

when 15 was distributed it should be '45 - 15y' instead of '45 + 15y'

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

The correct expression is

12 + 15(3 - y) - 10y

12 + 15 x 3 - 15y - 10y

12 + 45 - 15y - 10y

57 - 20y

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Step 1:

12 + 15(3 - y) - 10y

Step 2:

12 + 15 x 3 - 15y - 10y

Step 3:

12 + 45 - 15y - 10y

Step 4:

57 - 20y

Now,

We see that,

There was an error in step 2 where instead of -15y, +15y was written.

Thus,

The correct expression is

12 + 15(3 - y) - 10y

12 + 15 x 3 - 15y - 10y

12 + 45 - 15y - 10y

57 - 20y

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

Can someone please answer this question
Giving brainleist!

Answers

Answer:

a) 9000

b) 40

c) 630

d) 125

If the number 45 is multiplied by 100, In what place value will the 4 be?
thousands
tens
ones
hundreds

Answers

Answer:

thousands

Step-by-step explanation:

the number would be 4,500

This banana 8 inches How many 0.4 inch slices of banana can be cut from this banana?

Answers

Answer:

20 banna slices can be cut from a banna

Step-by-step explanation:

8 divided by 0.4 equals 20

20 slices

8 divided by 0.4 would give you an answer of 20 banana slices

Who can answer this

Answers

Answer:

Check pdf

Step-by-step explanation:

Which improper fraction is equivalent to 15 3/7

Answers

Answer:

108/7

Step-by-step explanation:

15*7 is 105+3 is 108/7

There are 20 pieces of fruit in a bowl and 8 of them are bananas. What percentage of the pieces of fruit in the bowl are bananas?




**choose your answer from the choices on Slide 5, but you must show how you got your answer on the chart, blank drawing space below, or explain in words**

Answers

The answer is that I got was the answer .4 because the fraction is 8/20 and that as a percentage is .4

What is the area of a circular region whose
diameter is 12 centimeters?

Answers

Answer:

A circle of radius = 12 or diameter = 24 or circumference = 75.4 cm has an area of: 4.524 × 10-8 square kilometers (km²)

The area of the circular region will be 113 square centimeters.

What is an area?

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called the area of the circle.

The formula to calculate the area of the circle is given by:-

A = πr²

Given that the diameter of the circular region is 12 centimeters. The radius will be half of the diameter.

r = d / 2

r = 12 / 2 = 6

The area of the region will be calculated as below:-

A = πr²

A = π x ( 6 ) x ( 6 )

A = 113.09 square centimeters

Therefore, the area of the circular region will be 113 square centimeters.

To know more about an area follow

https://brainly.com/question/24375372

#SPJ2

can someone help me with this

Answers

90000
Haha boogaloo booga

Round 1231.50432 to the nearest tenth

Answers

Answer:

1231.5

Step-by-step explanation:

I hope this help.

Select all equations where r=3 is a solution

R-3=0
1+ r = 2
9- r = 3
1/5r = 3
R2= 9

Answers

Answer:

the first equation

Step-by-step explanation:

Negative nine minus negative ten?

Answers

Answer:

-9 - 10 = -19

Step-by-step explanation:

If both numbers are a negative, then add them together but keep the negative or minus sign

Hope this Helps!!!

help me plssssssssssssssssssssssssssssss

Answers

Answer: See explanation (btw, the answer is always in bold letters)

Step-by-step explanation:

1.) 1 gallon for $1.99

1/2 gallon for $0.98

1 gallon would be 0.98 × 2 = 1.96

2 gallons for $3.98

1 gallon would be 3.98 ÷ 2 = 1.99

2.) 621 ÷ 4 = 155.25

He pays $155.25 each payment!

3.) V = s³

s = 3

V = 3³

3 × 3 × 3 = 27

V = 27 m³

4.) This is a rectangle; the area of a rectangle is l × b.

L = 6.9

l × b = a

6.9b = 28.29

Divide both sides by 6.9

b = 4.1

The missing length is 4.1 m

5.) False

Can someone help me

Answers

Answer:

86m²

Step-by-step explanation:

find area of triangle:

1/2 (bxh)

1/2(5x4)

1/2(20)

10

find area of rectangle:

bxh

12 x 8

96

subtract triangle's area from rectangle's area:

96-10

86

every day, andrews orange juice stand uses 2 bags of oranges. How many days with 2/3 of a bag of oranges last?

Answers

Answer:

2/3

Step-by-step explanation:

5. Choose the likelihood of a probability of 50 percent.
Event: November 25th will fall on a Monday
Certain
Highly likely
Less likely
Impossible

Answers

Answer:

well, highly likely. it will always fall on a monday,

Step-by-step explanation:

if you look at all of the years it has fallen on since 2010 you will see it has  always fallen on monday.

Which pair of values could NOT be the roots of a quadratic polynomial?
A) 4 and 6
B) 5 and 5
C) 2 + 3i and 2 + 3i
D) 1 + 3i and 1 –3i

Answers

Answer:

Part c

Step-by-step explanation:

In quadratic equations of real coefficients, the complex roots always occur in conjugate bases. It means, if, 2 + 3i is one of the roots and then the second root must be 2 - 3i.

The pair of values that can not be the roots of a quadratic polynomial is 2 + 3i and 2 + 3i

A polynomial is an expression consisting of the operations of addition, subtraction, multiplication of variables.

Polynomials can be classified based on degree as linear, quadratic, cubic, etc.

If the root of a quadratic polynomial is a complex number, then it must be in conjugate pairs.

The pair of values that can not be the roots of a quadratic polynomial is 2 + 3i and 2 + 3i

Find out more on polynomials at: https://brainly.com/question/4142886

A line passes through the points (1, 7) and (0, 3). What is its equation in slope-intercept form?

Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:1.  you can compute the slope, m

2.  point (0,3) is the y-intercept; b=33

3.  y = mx + b, so put the numerical values in for m & b.  DON

Step-by-step explanation:

How do I find the volume of a solid by rotating the region bounded by the given curves about a specified line?

Answers

Step-by-step explanation:

if a region is bounded by two curves y=f(x) and y=g(x) on an internal a,b where 0<g(x)< f(x) then the volume of the solid obtained by the rotating region about the Y-axis is expressed by the integral of the difference of two functions: v= 2πbfax(x)jdx

Choose Yes or No to tell if the expression is equal to 8 x 40.

Answers

no i don’t think so
Other Questions
One of the students is chosn at random. What is the probability of picking a student who sciored above 65 T/F The purpose of a hypothesis is to predict the potential outcome of your research experiment. here are 4 red cards and 8 black cards in a bag. How likely is it that you will randomly draw a blue card? aImpossible bUnlikely cAs likely as not dLikely eCertain If PQRS is a kite, find m angle Q Lisa is going on a 3 3/4 mile hike. She has already hiked 1 1/4 miles. How many more miles does she have left to hike? What are theCivic duties of American citizens and need to rank from least important to very important what is 10 to the 100th power who were the leaders for each side in the amiens offensive Who is your favourite celebrity?Mine is Doja Cat! The Digestive and Excretory Systems Assignment Active Describing Peristalsis What is peristalsis and where does it occur? Solve the inequality for v.5v-9> 66 How can I factorise expressions 70 pointsss for the correct answer When the function f(x) is divided by 4x5, the quotient is 3x^2 x+3 and the remainder is 2. Find the function f(x) and write the result in standard form. After the Industrial Revolution goods were produced by_____________MachinesAnimalsPeopleCooking need help ASAP! please answer Use the chart to answer the question.?Farming technology replaced the need for manpower G.I. Bill gave opportunities to veterans that they did not have beforethe war Urban areas had more job opportunities than the rural areasWhat is the BEST title for the descriptions?A. Reasons for the Great Migration Before World War IB. Reasons Georgians Moved to the Urban Areas After World War IIC. Reasons Georgians Moved to the Rural Areas Before World War IID. Reasons for the Decline of Industry in Georgia After World War I Silver nitrate reacts with calcium chloride asshown.2 AgNO3 + CaCl2 2 AgCl + Ca(NO3)2How many grams of CaCl2 would be required to completely react with 420 mL of0.506 M AgNO3 solution?Answer in units of grams. Multiply and simplify. Plz show work!(3x 2)(5x^2 7x + 2) A rectangular prism has a length of 312 inches, a width of 312 inches, and a height of 7 inches. Danny has a storage container for the prism that has a volume of 90 cubic inches.What is the difference in volume between the prism and the storage container? In a hostel, 120 students consume 2160 kg of rice per month. How much rice will be consumed by 80 students in a month?