What are the zeros of the function
f(x)=x^2+2x-8

Answers

Answer 1

Answer:

-4, 2    (-4,0) (2,0)

Step-by-step explanation:

factoring in binomials

[tex](x+4)(x-2)=x^{2} +2x-8[/tex]

The zeros:

[tex]x+4=0\\x=0-4\\x_{1} =-4[/tex]

[tex]x-2=0\\x=0+2\\x_{2} =2[/tex]

I hope this help you


Related Questions

I will give brainiest if you answer it and give a explanation.

Answers

Answer:

  x = 35

Step-by-step explanation:

The angle marked 125° is angle DPE. The (vertical) angle formed from the rays opposite PD and PE is angle BPA. That angle is divided into two parts by ray PC. One of those parts is angle CPA, shown as 90°. The other part is angle CPB, shown as x°. This means ...

  angle DPE = angle BPA . . . . vertical angles have the same measure

  125° = 90° +x°

  35 = x . . . . . . . . . . divide by °, subtract 90

Kristen and Marina are making prisms out of cardboard using the designs shown below.



Whose design uses more cardboard, and by how many square inches? Show how you determined your answer.

Answers

Answer:

kristen

Step-by-step explanation:

5/6 divided by [13/11]

Answers

Answer:

0.70512820512 round to the nearest hunderth

Step-by-step explanation:

Miss Jenkins owns an electronics shop. She order 27 laptops at £413 each. Miss Jenkins sells the 27 laptops for £600 each Work out the profit.​

Answers

Answer:

You need to find the difference to show how much profit she makes. Subtract her cost of $413.00 from her selling price of $600.00 it will give you the difference, which is her profit.

Step-by-step explanation:

Answer:

she got 5049$ back in profit

Step-by-step explanation:

First count how much numbers are away from 413 to 600 you get 187

Next you Multiply 187 x 27 = 5049$

Please help me this is due in the morning and I’m not very good at fractions (number two btw)

Answers

The answers will be -5,-1,-1 and 1

Answer:

-6, -5

-3, -3

0, -1

3, 1

Step-by-step explanation:

-5 x -0.2 i got stuck here

Answers

A negative times a negative is a positive. The answer is 1

PLS HELP!! I WILL GIVE BRAINLIEST

refer to attachments for the question

Answers

In ∆PQR and ∆MNR

PQ=MNQR=RN<Q=<M=90°

Hence by

Side angle side congruency

[tex]\\ \sf\longmapsto ∆PQR\cong ∆MNR[/tex]

Step-by-step explanation:

PQ ≅ MN                    ⇒  Given

QR ≅ NR                     ⇒ Given

R is midpoint of PM    ⇒ Given

PR ≅ MR                      ⇒ Definition of midpoint

ΔPQR ≅ ΔMNR           ⇒ SSS postulate

some more math stuff I don't know of :(

Answers

They are both 40°. This is bc 180-65-75=40

Kardal used the line of best fit to predict that a man 80 inches tall would wear about a size 16 shoe. What can be concluded about this prediction? Check all that apply. The prediction is reasonable. The prediction is an interpolation. No data is given in the scatterplot for a height of 80 inches, but a shoe size can still be predicted. A prediction cannot be made for a man who is 80 inches tall. A man who is 80 inches tall will likely wear a size 12. 5 shoe.

Answers

Answer:

A and C

Step-by-step explanation:

A. The prediction is reasonable.

C. No data is given in the scatterplot for a height of 80 inches, but a shoe size can still be predicted.

__________________________________________________________

Based on the average height-to-shoe size ratio, it is rational to predict that a man who is 80 inches tall would wear a size 16 shoe, even without there being a scatterplot for a height of 80 inches.

somebody know the formula of a trapezium?

Answers

Hello There!

The formula for finding the area of a Trapezium is as follows.

A = a + b over 2, h

The first base being = a

The second base being = b

and the height being = h

So to solve plug in the values as described below.

a + b = ab

ab divided by 2

ab- times h

ab-h = Area

I hope I helped!

Brainliest is always appreciated.

Simplify the expression.

16-4[3+2÷(9-7)]

A) 0
B) 6
C) 30
D) 64​

Answers

please branliest if correct

It is 0 (A)

16-4(3+2:2)

16-4(3+1)

16-4 x 4

16-16=0

The answer to your question is A aka 0

Owen had 8,452 books donated to our school. If he shares with with 23 classes about how many books does each class get?

Answers

Answer:

how many kids are in each class though

List three negative numbers that are less than -1

Answers

Hello There! :)

3 Negative numbers that are less than -1:

-2-3-4-5-6-7-8-9-10

And it goes on and on for ever. Hope it helps you! :)

Do ask me if you have any question.

~An excited gal

[tex]MagicalNature[/tex] here to help

Answer:

-4,-9,-10

Step-by-step explanation:

Which variable expression represents the following word phrase?
one-half the sum of a number and three

Answers

Answer:

The correct choice should be B.

Tell me if I'm wrong.

Maria’s monthly bank statement showed the following deposits and withdrawals:

-$25.20, $52.75, -$22.04, -$8.50, $94.11

If Maria’s balance in the account was $47.86 at the beginning of the month, what was the account balance at the end of the month?
Please do a step by step explanation

Answers

$47.86 - $25.20 = $22.66

$22.66 + $52.75 = $75.41

$75.41 - $22.04 = $53.37

$53.37 - $8.50 = $44.87

$44.87 + $94.11 = $138.98

answer is $138.98

According to the text, approximately what percentage of college students drop out before obtaining a degree

Answers

Answer:

40% but there is no article so I looked it up

Step-by-step explanation:

a, b, c and d are positive integers, such that a+b+ab = 20, c+d+cd = 34. Find (a+b+c+d)·a·b·c·d

Answers

a+b=10 ab=10 c+d=17 cd=17 in total it equals 27 hope this helps!

WILL GIVE BRAINLIEST !!!


Two sisters share an inheritance of $1 million by a ratio of 2:3. How much does each sister inherit

Answers

Answer: 500k

Step-by-step explanation:

Answer:

500K Step sis got 500k because she got stuck in the washer and couldnt get out

Step-by-step explanation:

Step sis got stuck

HELPPP!!!!!!!ASAP!!!!!

What is the equation in slope-intercept form of the line that passes through the point (5, 0) and is parallel to the line represented by =2.2+1.2
y
=
2.2
x
+
1.2
.

Answers

Answer:

y = 2.2x - 11

Step-by-step explanation:

Slope: 2.2

y-intercept: 0 - (2.2)(5) = - 11

PLS HELP PLS AND TY

Answers

i want to say 1.3, 1.4, 1 3/7
so the last answer

2.5x + 6 = 0.5x + 46
I’ll give brain whoever solves it
PLEASE DO IT STEP BY STEP

Answers

Answer:

x=20

Step-by-step explanation:

2.5x+6=0.5x+46

subtract 0.5x from both sides

2x+6=46

subtract 6 from both sides

2x=40

divide both sides by 2

x=20

A humpback whale can eat 4.4 x 10^3 plankton a day during feeding season. If the feeding season lasts 120 days, find the total number of plankton a humpback would eat by the end of feeding season. Write your answer in scientific notation

Answers

Answer:

An average-sized blue whale will eat 2,000-9,000 pounds (900-4100 kg) of plankton each day during the summer feeding season in cold, arctic waters ( about 120 days).

Step-by-step explanation:

solve pls brainliest

Answers

He will be paid $90 interest, but $690 in total

What number has 7 as 1/10

Answers

70
7x10=70
So 1/10 of 70 is 7

-4(x+9)+44=16-5x
solve the equation

Answers

Maybe 8/11, if you want it as a decimal it’s 0.723…

how do I become good at fortine ​

Answers

Answer:

practice.

Step-by-step explanation:

hope this helps. . . <3

good luck!     uωu

Answer:

umm work harder I guess -,-

Step-by-step explanation:

The number 59 is increased to 60. What is the percentage by which the number was
increased, to the nearest tenth of a percent?

Answers

Answer:

the answer is 1.7

Step-by-step explanation:

Help please and super quick

Answers

Answer:

it's super easy

7¹⁵/7¹⁴

7¹⁵-¹⁴

7¹ or 7

Step-by-step explanation:

I know it helped you :)

Determine if the table represents a linear function, quadratic function, or exponential function.

Answers

Answer:

please no of one is not function so sorry

You and your friend are selling magazine subscriptions for a fundraiser after W weeks if you have sold (4w+1) subscriptions and your friend has sold (8w+6) subscriptions

Answers

Answer:

(4w+1)-(8w+6)

Step-by-step explanation:

Hope this helps :)

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