What are the zeros of f(x) = x2 + x – 30?
A. x = –6 and x = 5
B. x = –5 and x = 6
C. x = –15 and x = 2
D. x = –2 and x = 15

Answers

Answer 1
When you factor our f(x)=x^2+x-30, you get (x+6)(x-5). In order to get your zeroes you need to plug in values that would make each of those two parentheses equal to zero. So in this case since -6+6=0 and 5-5=0, your zeros would be x=-6 and x=5.
Answer 2

Answer:

Answer A is correct.  (x + 6)(x - 5) = x^2 + x - 30.

Step-by-step explanation:

Note that -30 = (-5)(6) and (5)(-6). This quadratic can be factored easily:

x^2 + x - 30 = (x + 6)(x - 5) is correct because 6x - 5x = x, the middle term of x^2 + x - 30.

Setting each factor equal to zero, one by one, we get:

x + 6 = 0 => x = -6, and x - 5 = 0 => x = 5

Answer A is correct.


Related Questions

Please hurry! I really need this

Answers

Answer: x - 2.60(2) + x + x - 2.60

Step-by-step explanation:

Aleekah’s amount is x, as identified by the problem. If Barika earn less than 2.60 than Aleekah, then you would take away 2.60 from x, thus x - 2.60. If (x - 2.60) is how much Barika earned and James earn twice that amount, then he would have ((x - 2.60)*2)

Deondra surveyed 240 of the students in her school about their favorite color.
Students could choose between purple and blue. 15% said their favorite color was
blue. How many students' favorite color was purple?

Answers

Answer:

the answer is 180 students.

Step-by-step explanation:

I got this by subtracting 15 by 100 and got 75. This means 75% chose purple. Then you take 75% of 240 and that's your answer

Answer:

204

Step-by-step explanation:

ok

PLS HELP!! RIGHT ANSWER GETS BRAINLIEST!! pls only answer if u know the answer 100% this is a test!
What is the solution to the system of equations?

(4, 0)

(−2, 3)

(0, 6)

(−4, 0)

Answers

Answer:

The answer is (-2,3)

Step-by-step explanation:

If you look at the coordinate plane, you'll notice that the x -values are negative and the y-values are positive. So, if you look at where the two lines meet, they meet at the point (-2,3).

Hope I helped!!!

What is the volume of a cylinder,in cubic feet,with a high of 5 feet in a base diameter of 10 feet?Round to the nearest tenth place

Answers

Answer:

390.7ft³ is the answer

Ryan garden is 20 yards wide. there are about 0.914 meters in 1 yard. About how many meters wide is Ryan's garden? (Decimal number only)

Answers

Answer:

the answer would be 18.28

Step-by-step explanation:

if you times 0.914 x 20

which would make 20 yards

because 0.914 is only 1 yard

You’re would be 18.28

-x^2+x+1=0

help please

Answers

Answer:

= 1 ± √ 5 over 2

Step-by-step explanation:

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

Given the related graph for each equation, determine which quadratic equation has no real number solutions​

Answers

Answer:

It is B i just took the instruction 0= -2(x - 2)^2 - 6

Step-by-step explanation:

WHAT IS THIS ??? I need helppp

Answers

Answer: C = 9

Step-by-step explanation:

Answer:

c=10.6

Step-by-step explanation:

In this we need to find c and we know that this is a right triangle

Therefore, I can use the Pythagorean Theorem which is a^2 + b^2 = c^2.

using this we then plug in a=8 and b=7 while c is the hypotenuse.

Now the equation is now 8^2 + 7^2 = c^2. We then solve for c.

8^2 + 7^2 = c^2

64 + 49 = c^2

113 = c^2

√113 = c

c = 10.630145...

Since the questions asks to round to the nearest tenth then the answer would be 10.6

Kara is sorting buttons by length for a craft project.The line plot shows of each button.If kara lines up all the 3/4 inch buttons What would be the total

Answers

Required picture attached below :

Answer:

2 1/4 inches

Step-by-step explanation:

From the line plot Given ;

The frequency or number of 3/4 inch button is 3

Therefore, lining up all the 3/4 inch button in the plot, we have :

3/4 + 3/4 + 3/4

(3 + 3 + 3) /4

9 /4

2 1/4 inch

Answer in a flash!!!

Answers

Answer:

C

Step-by-step explanation:

As x moves towards infinity, the y value is constant, it never changes.

Answer:

The answer is C, it doesn't show a change

find the value of given expression

[tex] \sqrt{24 \times 24} [/tex]

Answers

Answer:

24 is the answers for the question

Answer:

the answer is 24 ........

86% of a university's freshman class are majoring in Computer Science. If 8514 students in the freshman class are Computer Science majors, how many students are in the freshman class?

Answers

Answer:

9900 Students

Step-by-step explanation:

Divide 8513 by .86 to show the rest of the freshman class.

You can check by doing 9900 times .86 to see %86 of 9900

Total there are 9900 students are in the freshman class.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, 86% of a university's freshman class are majoring in Computer Science.

8514 students in the freshman class are Computer Science majors.

Let the number of students are in the freshman class be x.

Here, 86% of x=8514

86/100 ×x=8514

86x=851400

x=851400/86

x=9900

Therefore, total there are 9900 students are in the freshman class.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ6

On vacation, you notice that a local taxi cab service offers rides with the following pricing: $1.80 for entering the cab plus $0.47 for each mile driven. How many miles did you travel if your taxi cab fare came to a total of $12.14?

NEED ASAP

Answers

Answer:

22 miles

Step-by-step explanation:

Diane deposits $7000 into an account that pays simple interest at a rate of 6% per year. How much interest will she be paid in the first 3 years?​

Answers

Answer:

1,260

Step-by-step explanation:

6x3=18 7000÷18=1,260

Answer:

18% or 1260$

Step-by-step explanation:

first u find 6% of 7000 then you multiply it by 3 for those three years .

Luke wants to cover this wall with blue paint.
7 m
1.6 m
3.6 m
wall
door
6.1 m
He will buy blue paint in 2.5 litre tins.
Each 1 litre of blue paint will cover 8 m2 of the wall.
How many tins of blue paint does Luke need to buy?

Answers

First find the area of the wall by splitting it into two rectangles

The first rectangle is 7m x 1.6m=11.2m²

The second is (3.6m-1.6m) x 6.1m= 2m x 6.1m= 12.2m²

11.2m² + 12.2m²= 23.4m²


2.5 litres
1litre covers 8m²
So 2.5 x8 =20m ² covered by 2.5 litres

23.4 ÷ 20 =1.17 tins

So Luke needs to buy 2 tins of blue paint

A spinner for a game has 5 equal sections labeled 1-5. why is the probability of spinning a 1 or a 4?

Answers

Answer:

40%

Step-by-step explanation:

5 shots 20% for each you have 2 so 20+20=40

BRAINLIST!!

The number of pages read by eight different students during a one hour reading class was used to create the box plot shown above. Which of the sets of numbers below matches the given box plot?

Answers

The answer is 17 aka the line inside of the box

Answer:

 C. Pages Read in an Hour: 10, 14, 16, 16, 18, 19, 21, 25

Step-by-step explanation: Got it on my study island question.

Approximately how many people died during the Civil War?
Group of answer choices

600,000

6,000,000

6,000

60,000

Answers

Answer:

600,000

Step-by-step explanation:

around 620,000 so 600000 is the closest answer

Answer: around 600,000

Step-by-step explanation: you can basically solve this using just basic logic of thinking which would be too large or small

now who keeps sending links lol

Answers

i don’t know but it is really annoying and they need to stop. they are virus’

HELP ME PLZ :( its similar triangles you can pick both neither or one of the triangles

Answers

Answer:

A is the answer

Step-by-step explanation:

because it is equal to the first triangle

How many cups are in 1 quart?

correct=brainliest

Answers

Answer: 1 quart = 4 cups or 2 pints

15 points on the line better answer quick!

Answers

I would say A because a negative plus a negative equals a negative

Note: For question 15, your teacher will grade your responses to ensure you receive proper credit for your answers.

Juan and Rita both rode bicycles from the park to Main Street. The graphs below represent the time and distance for each student’s ride. Who rode more slowly? Justify your answer.

Answers

Answer:

Juan rode more slowly, Rita's graph is much steaper than Juan's. This means that she went faster and in less time. Juan took longer time and went on a slower pace. That's why I chose Juan.

Step-by-step explanation:

Good luck! <3

can someone help me with this : 4g = 8

Answers

Answer:

4g = 8

You would just have to divide 4 on both sides. The 4's would cancel out and now your left with 8÷4 = 2

Your answer would be

g = 2

4 divided by 4 and you get the x alone so then. 8 divided by 4 and get 2 so x=2

Please I beg of y'all someone who is good with math- Please help-

1 : The area of a circle is 25π. What is the circumference of that circle? Use 3.14 for π. Do not label your answer

2 : The area of a triangle is 45 cm2. The triangle was dilated. The new image has an area of 20 cm2. What is the scale factor? If the answer is not a whole number, enter it as a fraction, not a decimal.

3 : Which tank has the greater volume?

Tank A has a diameter of 10 ft and a height of 3 ft. Tank B has a diameter of 6 ft and a height of 8 ft

Answers

Answer:

1,Area = πr² Circumference = 2 πr So first we solve for r from area: 25 π = πr² 25 = r² r = 5 So we know that radius is 5 cm. Now substitute r to 5 in circumference formula: C = 2π(5) = 10π

2.126 cm2

3. Tank a

Step-by-step explanation:

Factorise this pleasee
x2+ 11x+ 18

Answers

Answer:

[tex](x +9)(x+2)[/tex]

Step-by-step explanation:

Given the problem,

[tex]x^2 + 11x + 18[/tex]

Factor the problem. Find factors of (18) such that when added the result is (11).

[tex](x +9)(x+2)[/tex]

Test by distributing, multiply each term in one parenthesis by every term in the other parenthesis,

[tex](x+9)(x+2)\\\\x^2 + 2x + 9x + 18\\\\x^2 + 11x + 18[/tex]

Answer:

(x+9)(x+2) is your answer

Step-by-step explanation:

x2+ 11x+ 18

x²+9x+2x+18

x(x+9)+2(x+9)

(x+9)(x+2)

Use the table to identify the value of p and q that should be used to factor x^2-3x-10 as (x+p)(x+q) I’ve seen the answer with positive 3x but not a answer for negative

Answers

Answer:

1

Step-by-step explanation:

1 is the right answer for this question

I need the answer and step by step directions please

Answers

Answer: 56

Step-by-step explanation:because x=5+3 y=1+6 area of rectangle abcd=xy

8*7=56

m(x)=-5/3x+4
Find m(3)

Answers

Answer:

-1

Step-by-step explanation:

Please enclose the fractional coefficient inside parentheses:

m(x) = (-5/3)x + 4

To find m(3), replace x in the above equation with 3:

m(3) = (-5/3)(3) + 4  =  -5 + 4 = -1

What number makes the number sentence true?

9x5x2 = 9x

Answers

Answer:

x=0, 1/10

Step-by-step explanation: hope I helped

I was confused on your question, but what I did was solved for x.

Other Questions
Write the equation of the line in slope-intercept form using y=mx+b A 4.0 kg circular disk slides in the x- direction on a frictionless horizontal surface with a speed of 5.0 m/s as shown in the adjacent Figure. It collides with an identical disk that is at rest before the collision. The collision is elastic. Disk 1 goes off at an 60 5.0 m/s angle of 60 with respect to the x-direction. Disk 2 g 30 goes off at an angle of 30 with respect to the x-direction. What best describes the speeds of the disks after the collision? what is the y intercept of y = 12 - 6x/4 HELPEOEODODOEKEKEL PLEASE What was the initial results of the presidential election in 2000? PLEASE help 10 pointsWhat event would have been attended by a person making this statement? "The park was full of the latest technology, new businesses for investment opportunities, and speakers from around the world. What a sight to see the progression the south was making."a. Atlanta Race Riotb. Leo Frank court casec. Henry Gradys editing roomd. International Cotton Exposition please help ill give you brainliest can someone please help me with this? I'll mark brainliest for the right answer Which of the following is NOT a component of skill-related fitness?A.balanceB.speedC. PowerD. Heart rate A DNA molecule carries information that specifies some traits of an organism. This information is found in the-shape of the molecule that is known as a double helixorder of nitrogenous bases in a single strand of nucleotidesnumber of different kinds of nucleotides in the moleculekinds of nitrogenous bases that form complementary nucleotide pairs que piratas mueren en la isla del tesoro y cules fueron las causas de su muerte porfavorregalo 65 pts y CORONITA Select all the expressions that are solutions to 9 = 1/3x How many permutations are there of the letters in the following word, if all the letters are used without repetition?ADMIRESGive the answer using permutation notation, factorial notation, or other operations. Then evaluate.ADMIRES is the word 16,000 grow 3% each year PLEASSEEEEE HELPPPPPP ASAPPPPPP Someone please help me? Brian ate 2/3 of a pizza. His friend, Joseph, ate 1/4 of what was left. How much pizza did Joseph eat? Please give a full explanation and answer on this 1Select the correct answer.How does a general internet search help in the research process?.It helps you choose sources that have been published more recently.OB.It helps you select articles that only credible authors have written..It helps you revise your research focus as you uncover more information.ODIt helps you search for information that can't be found at librariesResetNext Which is an example of textual evidence that was used to support the claim in the sample analysis essay?A. On March 16, 1944, Anne wrote, "But, still, the brightest spot of all is that at least I can write down my thoughts and feelings, otherwise I would be absolutely stifled!"B. Of course, teenagers have confided in their diaries for centuries.C. And she also wondered if her sister Margot, who was closer to Peter's age, would feel jealous and hurt if Anne and Peter spent time together without her.D. Anne was grateful for the letter, but still uncertain about how she should behave.