Mathematics High School

which is a solutiom (x-3)(x + 9)=-27?​

Answers

Answer 1
The solution is x= 0,-6
Answer 2

Answer:

x = 0, -6

Step-by-step explanation:

(0 - 3)(0 + 9) = (-3)(9) = -27

(-6 - 3)(-6 + 9) = (-9)(3) = -27

Related Questions

A lawn is shaped like a parallelogram with a base of 30 feet and a height of 12 feet. Covering the lawn with grass will cost $2.60 per square foot. How much money will it cost to cover the lawn with grass

Answers

Answer:

936 dollars

Step-by-step explanation:

I've got the area of the parallelogram and the area is 360 feet.area of parallelogram is equal to based x height then I took the money x the feet then I got 936 dollars hope it helps.

decrease 784 in the ratio 3:4​

Answers

Answer:

336 and 448

Step-by-step explanation:

sum the ratio

divide the actual number by the sum i.e 784÷7=122

multiply 112 by 3 and by 4

The numbers are 336 and 448 respectively.

What is Arithmetic?

The mathematical branch known as arithmetic deals with the study and application of numbers, their relationships, and mathematical observations. The term "arithmetic" (which comes from the Greek word "arithmos," "number") often refers to the fundamental concepts in number theory, measurement, and computation (that is, the processes of addition, subtraction, multiplication, division, raising to powers, and extraction of roots).

As per the given data:

We have to decrease 784 in the ratio 3:4​

Consider that after decreasing, the numbers are x and y.

From the given data:

(x / y) = (3 / 4)

⇒ 4x = 3y

⇒ y = (4x/3) ...(i)

also, x + y = 784

Substituting from eq (i)

x + (4x/3) = 784

(7x / 3) = 784

x = (743 × 3) / 7

x = 336

and y = 784 - 336 = 448

Hence, the numbers are 336 and 448 respectively.

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How do you write the equation for this word problem: DeShawn spent $650 on pairs of pants. Dress pants cost $100 and jeans cost $70. If he bought a total of 8, then how many of each kind did he buy? And can you please show this step by step. Thank you

Answers

Answer:

He bought 5 pairs of jeans and 3 pairs of pants.

Step-by-step explanation:

5j + 3p = 650

5 × 70 = 350

3 x 100 = 300

350 + 300 = 650

1. NBC: A jacket you like costs $64. You have a coupon for 20% off. How much will you pay for the jacket?​

Answers

Answer:

$51.2

Step-by-step explanation:

If you subtract 64 to 20% then you end up with $51.2

what is 200 divided by 3

Answers

Answer:

66.6666666667

Step-by-step explanation:

I osnt know how to explain it but that's the answer sorry

The solution of the expression divide 200 by 3 is,

⇒ 66.67

We have to given that,

To divide 200 by 3

We have to divide the number as,

⇒ 200 ÷ 3

3 ) 200 ( 66.6

   - 18

   ------

       20

      - 18

      ------

          20

        - 18

        ------

            2

Therefore, The solution of the expression divide 200 by 3 is,

⇒ 66.67

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Calculate the amount of interest you receive if you invest $30,000 at 4%
for 3 years.

Answers

The answer is $37 use the internet
i think it’s 22,500?

Is it rational or irrational pls help

Answers

It is rational. Please mark me brainliest :)

Hoped I helped!

The circular stone mound in Ireland called Newgrange has a diameter of 250 feet. A passage 62 feet long leads towards the center of the mound.
Find the perpendicular distance x from the end of the passage to either side of the mound. Round your answer to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

 it's 125 for the radius and also 125-62 = 63

so 125+63 = 188

188 * 62 = X^2

11656 = X^2

107.96 = x

108.0  = x  ( to the nearest tenth )

The perpendicular distance x from the end of the passage to either side of the mound is : 107.93 feets

Diameter = 250

To obtain the perpendicular distance, x :

We use the relation : x × x = Length to either side of mound :

Mathematically ;

x × x = 62 ft × (250 - 62)

x² = 62 × 188

x² = 11656 ft²

Take the square root of both sides ;

x = √11656

x = 107.9629 ft

Hence, the perpendicular distance x from the end of the passage to either side of the mound is : 107.93 feets

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8 Which numbers from this list are less than -0.94?
15
0.24, -2.23, 97%
6, -25,-0.95
16
F
15
- 2.23, and -0.95
16'
15:
6 -2.23, -2, and
and -0.95
H 0.24,
15
and -0.95
16
J
15
16
0.24, and -2.23
+

Answers

Answer:

-0.95, -2, -2.23, -25

Step-by-step explanation:

All you have to do is look at the sign of each number and see whether it's less than -0.94.

(-2,5) and (5,-4)
What will be the slope of the line passing through these points?

Answers

The slope is -9/7. I don’t have an explanation because I used an online calculator but that’s the answer in case you don’t have to show work.

What is the solution set of the inequality: 14- 3x < -1

Answers

Answer:

x>5 (Answer should have a positive sign.)

Step-by-step explanation:

To solve this problem, isolate x from one side of the equation.

First, subtract by 14 from both sides.

14-3x-14<-1-14

Solve.

-3x<-15

Multiply by -1 from both sides.

(-3x)(-1)>(-15)(-1)

Solve.

3x>15

Then, you divide by 3 from both sides.

3x/3>15/3

Solve.

15/3=5

x>5

In conclusion, final answer is x>5.

Help please!!!! Emergency
Will give brainiest, if correct!

What is the y-intercept of the line?

0
1
1/2
-2

Answers

The answer is 1
you are welcome :))
The answer will be one!!

can someone please help me ​

Answers

Answer:

A

Step-by-step explanation:

The formula is y-b=m(x-a)

m is the slope

a is the x term

b is the y term

y-6=3(x-5)

Answer:think the answer c

Step-by-step explanation:

which of the following graphs does not represent a function of x?

PLEASE HELP ILL MARK BRAINLY IF CORRECT

Answers

i believe that it is graph 3 :) if it’s not right let me know.

Answer:

It's Graph 1 because it passes the Y axis two times

Expand the expressions below using a rectangular array.
3.52x−5+6y

Answers

Answer:

3.52 x − 5 + 6 y = 0

Step-by-step explanation:

Evaluate 1/2y+1/7 when y=1/5 .

Answers

Answer:

17/70 ([tex]\frac{17}{70}[/tex])

Help!! due in 20 mins

Answers

Answer:

i believe A is not true .

Step-by-step explanation:Notice how b,c,and d are all similar . pretend the first box is box a and the second box is box b . the answer choices are all similar in the terms like a/b=b/a or b/a=a/b . yet answer A is like a/a=b/b and it makes no sense

giving brainliest if correct don't answer just for points

Answers

Answer:

Step-by-step explanation:

What is the value of this expression?

7 + 4 × (6 − 2)2

Answers

Answer: 39
Explanation:
Use PEMDAS
First is parentheses
7 + 4 * (4) 2
Next is multiplication
7 + 16 * 2
Multiply 16 by 2 to get 32
Then add
32 + 7 = 39
Therefore, answer is 39
Hope it helps

Help with this math problem, please!!

Answers

Answer:

Step-by-step explanation:

that is hard

Will get brainliest if correct

Answers

Answer:

half

Step-by-step explanation:

it is more than half :)

3x2 + 5x-9 = 0
Quadratic formula
A=
B=
C=

Answers

Answer:

the answer are

a = 3, b

= 5 and

c = -9

Answer:

The answer is in the photo below! :D

Step-by-step explanation:

Hope this helped!

-LEI

HELPPP!!

Select the interval where h is negative.
A) -4 < x < -3
B) -1 < x < 1
C) 3 < x < 4

Answers

Answer:

B) -1 < x < 1

Step-by-step explanation:

A function is positive on intervals (read the intervals on the x-axis), where the graph line lies above the x-axis. A function is negative on intervals (read the intervals on the x-axis), where the graph line lies below the x-axis.

Answer:

khan

Step-by-step explanation:

A nature park has two ticket plans. With one plan, you pay a $24 yearly membership fee plus $8
for each visit. The other plan has no membership fee, but you pay $14 for each visit. Isaac is on
the first ticket plan and Maddie is on the second ticket plan. After how many visits will they each
have paid the same amount
F 5
G6
H4
J 3

Answers

Answer:

G6

Step-by-step explanation:

What is the height, x, of the rectangular prism, if the volume is 750 cubic centimeters?

Answers

Answer:

6

Step-by-step explanation:

25x5=125

750 divided by 125 =6

Please use the heart to say thanks

PLEASE HELP. ANYONE.

The amount of fence Farmer Thomas needs around her vegetable garden can be modeled by the formula:

V = 8w + 3l
where V = the perimeter of the vegetable garden; w = the width; l = the length

Which formula best represents l in terms of w and V ?


A- l=v-8w-3
B- l=3v-8w
C- l=v-8w/3
D- l=v-8w+3

Answers

V=8w+3l
V-8w/3 =l
Ans. C

A woman divided her collection of 1,200 books into 10 equal parts. She gave 3 portions to her husband, 4 portions to her daughter, and the rest equally to three nieces. How many books did her daughter receive?

Answers

Answer: Her daughter received 480 books

Step-by-step explanation:

Total collection of books =1,200

Total collection of books divided into 10 equal parts =1,200/10 = 120

Number of books given to her husband= 3 portions which means

120 x 3 =360books

Number of books given to her daughter=4 portions which means

120 x 4  =480books

The remaining which equals 3 portions were given to her three nieces.

Please help me please




13

Answers

Answer:

a

Step-by-step explanation:

That is the only one equipped to this equation

Help me with this please

Answers

Answer:

6a is 80       6b120

Step-by-step explanation:

Round 2.689 to the nearest tenth

Answers

Answer:

2.700

Step-by-step explanation:

You have to see if it is rounding up or down and it is rounding up

The answer is 2.7 ..............
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The salesperson who joins a real estate company as an independent contractor will probably have to pay for his own challenge program:Create a class called MathTrick in the newly created project folder.Complete the static methods in the starter code.Utilize Math.random() and any other methods from the Math class as needed.Utilize .substring() where appropriate.Each method should return a value of the correct data type.Call the completed static methods in the main method to complete a program that does the following:Generate a random 3-digit number so that the first and third digits differ by more than one.Now reverse the digits to form a second number.Subtract the smaller number from the larger one.Now reverse the digits in the answer you got in step c and add it to that number (String methods must be used to solve).Multiply by one million.Subtract 733,361,573.Hint: since replaceLtr is expecting a String, you should use String.valueOf(number) to create a String variable from the integer variable before step g.Then, replace each of the digits in your answer, with the letter it corresponds to using the following table:0 --> Y1 --> M2 --> P3 --> L4 --> R5 --> O6 --> F7 --> A8 --> I9 --> BNow reverse the letters in the string to read your message backward.Open the StarterCode407.java(shown below) file to begin your program.Notice that these instructions double as pseudocode and including pseudocode in a program provides documentation./** * This Math trick and many more can be found at: http://www.pleacher.com/handley/puzzles/mtricks.html * */public class MathTrick {// Step 1) Creates a random 3-digit number where the first and third digits differ by more than one// Hint: use modulus for the last digit and divide by 100 for the first digit.public static int getRandomNum() {int num = 0;int firstDigit = 0;int lastDigit = 0;// complete the methodreturn num;}// Step 2 & 4) reverse the digits of a numberpublic static int reverseDigits (int num) {// complete the method}// Step 7) replace characters in a string according to the chartpublic static String replaceLtr(String str){// complete the method}// Step 8) reverse the letters in a stringpublic static String reverseString(String str) {// complete the method}public static void main(String[] args) {//1.Generate a random 3-digit number so that the first and third digits differ by more than one.//2.Now reverse the digits to form a second number.//3.Subtract the smaller number from the larger one.//4.Now reverse the digits in the answer you got in step 3 and add it to that number.//5.Multiply by one million.//6.Subtract 733,361,573.//7.Then, replace each of the digits in your answer, with the letter it corresponds to using the table in the instructions.//8.Now reverse the letters in the string to read your message backward.} // end main} // end class How can our knowledge of politics and governance help us become effective citizens? 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