Solve for x.
x2 – 13x + 12 = 0
A. x = -12 and x = -1
B. X = -12 and x = 1
C. X= 12 and x = -1
D. X = 12 and x = 1

Answers

Answer 1

last one is the answer:D. X=12 and X=1

step by step:

d=b2-4ac=169-48=121

x1=(-b+√d)2a=(13+11)2=12

x2=(-b-√d)2a=(13-11)/2=1

X1=12 and X2=1

please give me brainlest❤️


Related Questions

20 POINTS!!!!

b-7/4 = 1/2

explain your thinking

Answers

Answer:

B=86

Step-by-step explanation:

So first step is add 74 to 12 because if you subtracted b with 74 and to reverse that you have to add and 74+12=86 and that is what b equals

what is the simplified form of the expression
[tex] \sqrt[3]{27} [/tex]

Answers

simplified form of the expression

[tex] \sqrt[3]{27} [/tex]

Answer:

[tex]\rightsquigarrow[/tex] [tex]\tt{\sqrt[3]{27} }[/tex] ⠀

[tex]\rightsquigarrow[/tex] [tex]\tt{\sqrt[3]{3×3×3} }[/tex] ⠀

[tex]\rightsquigarrow[/tex] [tex]\tt{3 }[/tex] ⠀

Graph the function.
f(x) = -5/4x +4

Answers

Answer:

1. Put a dot at y=4

2. Go DOWN 5 blocks, go RIGHT 4 blocks

3. Put a dot at this point

4. Connect your 1st dot to the second dot for your first line segment

5. Follow the pattern

sound travels about 340 m / s. The function d(t) = 340t gives the distance d(t), in meters that sound travels in t seconds. How far does sound travel in 63 s?


I need the answer quickly please! :)

Answers

Answer:

d(63)=21,420m

Step-by-step explanation:

d(t)=340t

D=Distance

T=Time

D(63)=21,420

George is in charge of
prepping a pinata for a
party. He puts 72 pieces of
candy in the pinata. If
each person gets 2/8 of the
candy, how many pieces of
candy will each person
receive?

Answers

It would most likely be that each person gets 18 pieces of Candy

The distance on a map is 4.5 cm. The scale of the map is 1 : 1000. What is the actual distance?. Single choice.

Answers

Answer:

Actual distance is 4500 cm (45 m).

Step-by-step explanation:

A scale is a representative fraction that can be used to either increase or decrease proportionally the dimension of a given object.

scale = [tex]\frac{distance on map}{actual distance}[/tex]

It is in the form of a ratio.

From the question, Distance on map = 4.5 cm,

scale = 1 : 1000

        = [tex]\frac{1}{1000}[/tex]

scale = [tex]\frac{distance on map}{actual distance}[/tex]

Let the actual distance be represented by d.

So that,

[tex]\frac{1}{1000}[/tex] = [tex]\frac{4.5}{d}[/tex]

⇒  d = 4.5 x 1000

       = 4500

    d = 4500

The actual distance is 4500 cm (45 m).

Dana buys a cat pillow for 43.00 the sales tax is 7%?

Answers

Answer:

Step-by-step explanation:

43.00 = 100% = 1

7% = 0.07

So to work out the total price you need to times 43 by 1.07 = 46.01

There are 16 girls and 18 boys in a class. The teacher chooses a student's name at random to answer a question.
What is the probability that the teacher chooses a girl to answer the question?
A
1
34
O
B.
16
OO

Answers

Answer:

8/17

Step-by-step explanation:

16 girls and 18 boys in a class

Total number of students:

16 + 18 = 34

Probability of choosing a girl:

P(g) = number of girls / total numberP(g) = 16/34 = 8/17

Multiply.
(5x + 4)^2

Answers

Answer: 25x^2 + 40x + 16

Explanation: Apply perfect square formula
(5x)^2 + 2 * 5x * 4 + 4^2
Simplify

The multiplication of the given equation i.e. [tex](5x + 4)^2[/tex] should be considered as the [tex]25x^2 + 40x + 16[/tex].

Calculation of the equation:

Since the given equation is [tex](5x + 4)^2[/tex]

We have to break this equation

So, it can be like

[tex](5x)^2 + 2 \times 5x \times 4 + 4^2[/tex]

[tex]25x^2 + 40x + 16[/tex]

Hence, we can conclude that The multiplication of the given equation i.e. [tex](5x + 4)^2[/tex] should be considered as the [tex]25x^2 + 40x + 16[/tex].

Learn more about an equation here: https://brainly.com/question/17069398

I need some help ? Does anyone know this:)I’m new too this thats why im asking loll

Answers

Answer:

6

Step-by-step explanation:

Answer: 9 in

Step-by-step explanation: area = (base x height)/ 2 You multiply base (6) times height (3), and then divide it by 2.

Helppppp me please ???

Answers

Answer:

176•74

Step-by-step explanation:

area of circle is πr^2

π=3•142

r=7•5

3•142×7•5×7•5

=176•737

176•74

You complete 40% of ur hw problems before dinner what fraction of the problems did u complete before dinner

Answers

Is there any answer choices? I believe it is 2/5

The equation P = 21 + 2w can be used to find the perimeter of a rectangle. A 1 point rectangular shaped playground is enclosed by a fence that is 500 m. The length of the playground is 120 m. Use the equation to determine the width of the playground *

Answers

Answer:

130 m

Step-by-step explanation:

Given:

P = 2l + 2wP = 500 m

Length is:

l = 120 m

Substitute values and solve for w:

500 = 2*120 + 2w2w = 500 - 2402w = 260w = 260/2w = 130 m

6. What is the slope of the line pictured?​

Answers

Answer:

-1/3

Step-by-step explanation:

We can do this by counting the number of spaces away the points shown are. Starting from the leftmost point, you move down one, or -1, units, and right 3 units. Since slope is defined as rise over run, you can then say that the slope is:

-1/3

Hope this helps!

-2 and 4
what is the slope intercept form

Answers

Answer:

y=4x-2

Step-by-step explanation:

Mildreda bought 3 boxes of pencils. There were 4 pencils in each box. Which shows how Mildreda could figure out how many pencils she bought?

Answers

Answer: 12

Step-by-step explanation:

4 x 3 =12

Please please help please please ASAP please please help please please ASAP please please help please please ASAP please please help please please ASAP please please help

Answers

Answer:

37°

Step-by-step explanation:

Answer:

37

Step-by-step explanation:

all triangle = 180

53 + 90=143

180 - 143 = 37

PLEASE SIMPLIFY THIS

Answers

Answer:

15y / 8

Step-by-step explanation:

Multiplying by 2 to get the common denominator.

3y / 4 * 2 = 6y / 8

Combine like terms.

6y / 8 + 9y / 8

Final Answer:

15y / 8

Elyse wants to buy a new softball glove that costs $46.50. She has $15 and plans to save $5.25 each week. How many weeks will it take her to save the money?

Answers

Elysa would have to save money for 6 weeks to afford the glove

46.50-15= 31.5/5.25= 6

6 weeks is the answer.

Calculate the slope of the passing line through each pair of points: (8, 6) and (-1, 6)

Answers

Answer:

[tex]\displaystyle m=0[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (8, 6)

Point (-1, 6)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [SF]:                       [tex]\displaystyle m=\frac{6-6}{-1-8}[/tex][Fraction] Subtract:                                [tex]\displaystyle m=\frac{0}{-9}[/tex][Fraction] Divide:                                   [tex]\displaystyle m=0[/tex]

The marked price of a water cooler is $ 4650. The shopkeeper offers an off-season discount of 18% on it. Find its selling price.

Answers

Answer:

3813

Step-by-step explanation:

M.P of water cooler=$4650

Discount% on water cooler=18%

Discount on water cooler=18/100*$4650 i.e.$837

So,selling price=$4650-$837i.e.$3813 Ans.

Answer:

3813

Step-by-step explanation:

the formula will be 18 upon 100 multiply by 4560. the answer is 837. now subtract the original price from the discount. 4560-837 is 3813 which is ur answer.

Simplify the following expressions. All answers should be in standard form.
[tex]5x(3x + 2)[/tex]

Answers

Answer:

The given expression in simplified form is: [tex]15x^2+10x[/tex]

Step-by-step explanation:

Simplifying the expression involve reducing the number of terms to minimum and making the expressions in standard form.

This may involve addition, subtraction and multiplication of variables.

Given expression is:

[tex]5x(3x+2)[/tex]

Distributing 5x will give us:

[tex]= 5.3.x.x + 5.2.x\\=15x^2+10x[/tex]

Hence,

The given expression in simplified form is: [tex]15x^2+10x[/tex]

Which expression represents the greatest common factor (GCF) of 110 and 132?
A. 2 x 11
B. 2 x 5 x 7
C. 2 x 3 x 7
D. 5 x 7

Answers

Answer:

(B) 2x5x7

Step-by-step explanation:

Answer:

B

hope this helps! :)

Simplify the expression. ( 5 x 2 − 3 x ) − ( 5 x 2 − 3 x + 1 )

Answers

Answer:

-1

Step-by-step explanation:

Following PEMDAS The answer equals to -1

*plssss make me brainlist*

Answer:

Let's simplify step-by-step.

5x2−3x−(5x2−3x+1)

Distribute the Negative Sign:

=5x2−3x+−1(5x2−3x+1)

=5x2+−3x+−1(5x2)+−1(−3x)+(−1)(1)

=5x2+−3x+−5x2+3x+−1

Combine Like Terms:

=5x2+−3x+−5x2+3x+−1

=(5x2+−5x2)+(−3x+3x)+(−1)

=−1

Step-by-step explanation:

Show your work

I don’t know this question please help me!!!

Answers

Answer:

5

Step-by-step explanation:

150 diveded by 30 is 5

Answer:

It sounds like 5 months, but the wording you chose is a little strange. What are the other wording options?

Step-by-step explanation:

150/30=5.

I hope this helps.

A car travels about 45 feet in one second. At this speed,
about how many feet will the car travel in 3 seconds?
A
1,250 feet
B
1,500 feet
с
150 feet
D
135 feet

Answers

The correct answer for the giving question it number 4
I agree, the answer is D because you if you do 45 * 3 = 135

Solve the following
equations for r:
9r - 66 = 116 - 4r

Answers

Answer:

r = 14

Step-by-step explanation:

9r - 66 = 116 - 4r

+4r                 +4r

13r - 66 = 116

     +66    +66

13r = 182

divide both sides by 13

r = 14

Hope this helps!!!

2/3b+5=20-b
can someone help me out plz because i keep getting this wrong

Answers

Answer:

b=9.

Step-by-step explanation:

Amir drove 165 miles in three hours . What was his speed in miles per hour

Answers

Answer:

165 divided by 3 55 miles per hour

Step-by-step explanation:

divide 165 by 3

equals to 1 hour

7n2 + 9k2 + 6 6n Submit​

Answers

Answer:

9 ( -10 - 10y )

Step-by-step explanation:

Other Questions
But when cities or countries are accustomed to live under a prince, and his family is exterminated, they, being on the one hand accustomed to obey and on the other hand not having the old prince, cannot agree in making one from amongst themselves, and they do not know how to govern themselves. For this reason they are very slow to take up arms, and a prince can gain them to himself and secure them much more easily. But in republics there is more vitality, greater hatred, and more desire for vengeance, which will never permit them to allow the memory of their former liberty to rest; so that the safest way is to destroy them or to reside there.The Prince,Niccol MachiavelliWhich text structure does Machiavelli use in this passage? Which signal word or words help you identify this structure? How does this text structure help the author convey his central idea? 345 XPleaseee help meeee Which table matches the rule subtract 4 from the input number"?Input 8 9 10 13Output 12 13 14 17Input 12 13 14 17Output 8 9 10 13BInput 8 9 10 13Output 14 15 16 17Input 12 15 16 19Output 8 9 10 13 Both the federal government and the state governments share the power to A. operate post offices. B. establish and maintain schools. C. register patents for new inventions. D. impose taxes. what partie is found outside of the nucleus HELPPP I NEED HELP DUE VERY SOONNN What was the MAIN difference in the beliefs of the earliest political parties?A)the issue of slaveryB)the power of governmentC)the split with Great BritainD)the belief in economic practicalEliminate if a+b=30 and a^2+b^2=740 find the value of ab The expression 2x + 4 would be a ? 32CBDEWhat is the measure of ZABD?A 32B. 58O c. 64OD. 148O E. 180 what is the relationship between a sac fungi and the making of bread Kai, a seventh grader, wants to determine the average number of times the families in his neighborhood visit the pool during the summer. He samples the families of four of his classmates. Which improvements could Kai make to his sample to increase the validity of the results? Select three choices.sample more familiessample families that have children who are not in seventh gradesample families that regularly use the poolsample families whose answer to the survey question is predeterminedsample families living in every third house in the neighborhoodANSWER BELOW HEREB - sample families that have children who are not in seventh gradeD -sample families whose answer to the survey question is predeterminedE - sample families living in every third house in the neighborhood I really need help please PLEASE ANSWER QUICK! WILL MARK BRAINLEST!On the evening news, graphic design shows up in all of the following places EXCEPT a.)charts or graphsb.)the weather mapsc.)captions under videosd.)the language in the news report Why does the world store nuclear waste and notjust shoot it into the Sun or deep space? I need help Im helping my lil sis but im to lazy to help her out so can someone answer?Shelly ate 7/10 of the gummy worms and Max ate 11/100 Answer please due now!!! Upon examining a sample consisting of 100 cells, you find the following distribution of cell phases. If you know that the cell cycle for this type of cell takes two hours, how long, on average, does the cell spend in prophase Please help! I know my current answers are not correct but I have no idea what the actual correct answers are. :( Select all answer choices that areexamples of PASSIVEtransportDiffusionEndocytosisFacilitated DiffusionExocytosisActive Transport