if axb=0, then a=0 or b=0
3x=0

Answers

Answer 1

Answer:

The given equation is

ax b= 0,

As we see that, it is a linear equation in one variable containing two constant.

So , a≠ 0 [then equation has no meaning.If a=0 , then [tex]0 \times x=0[/tex], which is meaningless]. ∴ a=0 is incorrect.

Similarly , b≠ 0 [ Reason same as above]. ∴b=0 is incorrect.

⇒3 x=0

⇒x=0 is the correct response.

Let me explain by this giving an example

⇒5 x=0

⇒ x=0 but 5≠0

So, x=0 or 3 x=0 is correct response.






Related Questions

Mr. Glidden is expanding the size of his garden. His new garden will be 3 times as long and 2 times as wide as his original garden. The perimeter of his original garden is 30 feet and the length is 11 feet. What will be the perimeter, in feet of his new garden?

Answers

Method One:


Step One: Figure out how long the width is, witch is 19 feet.

Step Two: Multiply 2*19 and 3*11 because it is 2 times as long and three times as wide

Step Three: Add 38+33

The new perimeter will be 71 feet.

The original garden's width is determined to be 4 feet. Upon expanding the garden to triple its length and double its width, the new garden's perimeter is calculated to be 82 feet.

The question is about calculating the perimeter of a new garden based on given dimensions and scale factors for its expansion. The original garden has a perimeter of 30 feet and a length of 11 feet. To find the width, we use the formula for the perimeter of a rectangle, P = 2l + 2w, which gives us 30 = 2(11) + 2w. Solving for w, we find that the width of the original garden is 4 feet.

Given that Mr. Glidden is expanding his garden to be 3 times as long and 2 times as wide, the new dimensions will be 3(11) feet by 2(4) feet, or 33 feet by 8 feet.

Therefore, the new perimeter will be 2(33) + 2(8), which equals 66 + 16, resulting in a new perimeter of 82 feet.

HELP ME PLEASE THANKS SO MUCH !

Answers

The answer is C,

200 is the original distance

plus the increasing 5 yards everyday

the volume of a rectangular prism can be found by multiplying the length width and height of the prism which of the following following could be possible dimensions of a rectangular prism that has a volume of 75 ft

Answers

D

because 3*5=15 And 15*5=75

Complete each number pattern
8,625 8,725 ______ ______ 9,024

862 962 _____ 1,162 ______

6,215 _____ 6,015 _______ ______

Answers

I assume 9024 is a typo and is meant to be 9025. if so, it will be;

8625 8725 8825 8925 9025

862 962 1062 1162 1262

6215 6115 6015 5915 5815

The graphs below show the number of honor roll students in each grade at Bridgeport Middle School. Which statement is true??

A. According to Graph 2, there are more than twice as many sixth graders on the honor roll than eighth graders on the honor roll.

B. The scale on Graph 1 does not distort the differences in the number of students.

C. The two graphs use completely different data

D.both: “according to Graph 2, there are more than twice as many sixth graders on the honor roll than eighth graders on the honor roll” and “the two graphs use completely different data”

Answers

B. The scale on Graph 1 does not distort the differences in the number of students. The scale the graph uses shows the actual amount of students, not just the number starting from 50.

What is the value of x?

3(x−2)+5x=18

X = ????

Answers

3(x-2)+5x=18

the correct answer is x=3

first simply the equation

8x=18+6

Now rid of alike terms resulting in

8x=24

now divide 24 by 8

x=3

3x-6+5x=18. 8x=24. X=3.


[tex] - 12 + - 33 \leqslant 39[/tex]

Answers

-45≤33 the answer to the question

The amount a babysitter earns is given by the equation y=7.5x where x is the number of hours and y is the amount earned in dollars. Is this relationship proportional?

Answers

Yes, this relationship is proportional.

Answer:

Yes, the relationship is proportional

Step-by-step explanation:

This is because the number of hours (x) is multiplied by the same number, 7.5, meaning that all of the values will be proportional (create a straight/linear line on a graph when the points are plotted).



what is the m<PHJ
A. 100°
B. 120°
C. 140°
D. 160°

Answers

B. 120° is the correct answer

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

∠PML = 140°

∠KHP = 20°

We need to find the measure of ∠PHJ.

Let m ∠PHJ = x°

From the graph, we conclude that

∠PML = ∠PHJ + ∠KHP (Vertically opposite angle)

[tex]140^\circ=x+20^\circ\\\\140^\circ-20^\circ=x\\\\120^\circ=x[/tex]

Hence, Option 'B' is correct.

Nikita invest 2000 into a bank account with a 4% annual interest rate. In seven years which is the most expensive item she can afford to buy
a) 2,700.
B) 2,500
c) 2,200
D) 3,000

Answers

Answer:

The correct option will be:  B) 2,500

Step-by-step explanation:

Nikita invest 2000 into a bank account with a 4% annual interest rate.

So, the amount of interest in one year will be:  [tex](2000*0.04)= 80[/tex]

and the amount of interest in 7 years will be: [tex](80*7)=560[/tex]

Thus, the total money in her account after 7 years [tex]=(2000+560)=2560[/tex]

So, the most expensive item she can afford to buy will be:  2500

Answer:

The answer is (a mountain bike priced at $2,500) In Plato

Step-by-step explanation:

In kite WXYZ , m∠XWY=38° and m∠ZYW=15° .



What is m∠WXY ?

Enter your answer in the box.
PLEASEE HELPPP!!!

°

Answers

AC = CB, hence ΔABC is isosceles

the base angles 34 and x - 5 are therefore equal

x - 5 = 34 ( add 5 to both sides )

x = 39

and 4y = 180 - ( 2 × 34 ) = 112

4y = 112 ⇒ y = 28


Answer:

x=39° ,y=28°

Step-by-step explanation:

In the given figure

Side AC = Side BC

Hence ΔABC is an isosceles triangle.

⇒∠CAB =∠CBA   (∵ angles  opposite to equal sides are equal)

                        ⇒  (x - 5)° = 34°  

                            ⇒  x = 39

Also in Δ ABC

            ∠ABC + ∠ACB + ∠CAB = 180°

                                                    (∵ Sum of all the interior angles of a triangle)

               ⇒   34° + 34° + 4 y = 180°

                 ⇒     4 y =180°-68°

                    ⇒     y=112°÷ 4

                        ⇒y= 28°

Hence, x = 39° , y = 28°

The top of a refrigerator has an area of 0.6 m^2. The height of the refrigerator is 180 CM. What volume does the refrigerator occupy in CUBIC METERS?

Note: all measurements of the refrigerator need to be in meters, make sure you have IDENTICAL units.

SHOW WORK PLEASE

THANKS IN ADVANCE! :)

Answers

the volume (V ) of a cuboid is V = Ah

where A is the area of the base or top and h is the height

h = 180 cm = 1.8m

V = 0.6 × 1.8 = 1.08 m³


The volume of the refrigerator is calculated by converting its height from centimeters to meters (180 cm = 1.8 m) and then multiplying it by the given area of the top (0.6 m²), resulting in a volume of 1.08 cubic meters.

To calculate the volume of the refrigerator, we need to use the formula for the volume of a rectangular prism, which is Volume = length x width x height. We already have the area of the top of the refrigerator, which is a product of its length and width, and we're given the height. However, firstly we need to ensure that all units are in meters.

Convert the height from centimeters to meters: 180 cm = 1.8 m.

Now, we can calculate the volume: Volume = Area x Height = 0.6 m² x 1.8 m = 1.08 m³.

Therefore, the refrigerator has a volume of 1.08 cubic meters.

Help algebra 2 questions.

Answers

For the first question, divide 200 by the seconds. You would get the answer 9.07. This answer is rounded to the nearest hundredth.

The second question, you would convert that to feet by using the units 1 meter = 3.28084.

If you converted it, the answer woudl be 29.75722 ft/second

What is x > -3 as an interval notion?

Answers

(- 3, ∞ )

the parenthesis at both ends indicates x ≠ - 3 or ∞

if x ≥ - 3 then {- 3, ∞ )

the square bracket on the left indicates x can equal - 3


Final answer:

The inequality x > -3 in interval notation is (-3, ∞), which means that the solution set for x includes all values greater than -3, but does not include -3 itself.

Explanation:

When the inequality x > -3 is written in interval notation, it means that the solution set for x includes all values greater than -3, but does not include -3 itself. In interval notation, we use a round bracket to indicate that -3 is not included in the solution set. The interval notation for x > -3 is (-3, ∞). This notation represents a half-open interval, where -3 is excluded but all values greater than -3 are included. The symbol ∞ represents infinity, indicating that there is no upper bound for the values of x in this inequality.

What is the standard form of the number shown in this calculator display?
3.82e+7

Answers

38.9e i think 60% sure

Rubin has 6 rolls of pennies containing 50 coins each, 5 rolls of nickels containing 40 coins each, 4 rolls of dimes containing 50 coins each l, and 3 rolls of quarters containing 40 coins each. How much money does he have?

Answers

6•50=$3.00 pennies

5•40=$2.00 nickels

50•10=$5.00 dimes

25•40=$10.00 total $20.00


Answer: $63

Step-by-step explanation:

Penny = $0.01

Nickel = $0.05

Dime = $0.1

Quarter= $0.25

Number of pennies = 6(50) = 300

Number of nickels = 5(40)= 200

Number of dimes = 4(50)= 200

Number of quarters = 3(40) = 120

Total amount of money:

300(0.01)+ 200(0.05) + 200(0.1) + 120(0.25) = $63

A yogurt shop allows its customers to add, for no charge, 3 toppings to any yogurt purchased. If the store has 15 possible toppings, how many different 3-topping combinations can a customers choose?

Answers

Question says that a yogurt shop allows its customers to add, for no charge, 3 toppings to any yogurt purchased. Also the store has 15 possible toppings.

Now we need to find about how many different 3-topping combinations can a customers choose.

To find that we just need to apply combination formula

[tex]C(n,r)=\frac{n!}{r!(n-r)!}[/tex]

which is used to select r items out of n items

we have to find combination of 15 toppings into 3 toppings so we calculate C(15,3) using above formula

[tex]C(15,3)=\frac{15!}{3!(15-3)!}[/tex]

[tex]C(15,3)=\frac{15!}{3!*12!}[/tex]

[tex]C(15,3)=\frac{15*14*13*12!}{3!*12!}[/tex]

[tex]C(15,3)=\frac{15*14*13}{3!}[/tex]

[tex]C(15,3)=\frac{2730}{6}[/tex]

[tex]C(15,3)=455[/tex]

Hence final answer is 455.

Answer:

only 455

Step-by-step explanation:

i have a ? how do you know when its C(n,r) and not P(n,r)

10p-2(3p-6)=4(3p-6)-8p please show work

Answers

this statement is false

Ryan drives his car on a trip and goes 4,000Km , how many miles did he travel? (1 miles=1.609 km )

Answers

Ryan drives 2485.485 miles in his car.

2,486.016 miles of distance Ryan drives his car on a trip.

Given that, Ryan drives his car on a trip and goes 4,000 km.

We need to find how many miles he travels.

How to convert kilometres to miles?

1 kilometre is equal to 0.621371 miles (often shortened to .62) and 1 mile is equal to 1.609344 kilometres. Thus, to convert kilometres to miles, simply multiply the number of kilometres by 0.62137.

Now, divide the number of kilometres by 1.609

That is, 4000/1.609=2,486.016 miles

Therefore, 2,486.016 miles of distance Ryan drives his car on a trip.

To learn more about the distance visit:

https://brainly.com/question/21117271.

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When the absolute value of the slope gets smaller, the graph of a line gets
_______.could you use?

a. shorter

b.steeper

c.longer

d.less steep

Answers

The graph of the line would get less steep.

(APEX approved~)

Answer:

D) Less steep.

whats the answer of the problem peter is 3 years older than his sister Anna. if times their combined age is 85 . determine Annas age

Answers

Answer:

Anna is 41 years old.

Step-by-step explanation:

Easiest way to do this is by building a equation,

Lest say Anna's age is [tex]x[/tex].

Then as Peter is 3 years older than Anna Peter's age should be [tex]x+3[/tex].

Then the combined ages of the two people is given as 85. So we can write an equation as,

[tex]x+(x+3)=85[/tex]

[tex]x+x+3=85[/tex]

[tex]2x+3=85[/tex]

[tex]2x+3-3=85-3[/tex] (deducting 3 from both sides of the equation)

[tex]2x=82[/tex]

[tex]x=41[/tex]

As we originally took Anna;s age as [tex]x[/tex]

We can say Anna is 41 years old.

Nina earns $15 for each yard she mowes. she wants to buy a dress that coasts $109. how many yards will she need to mow to earn money for the dress? explain

Answers

she will need to mow 8 yards because 109 divided by 15 equals 7.2 but she cant just mow 7.2 yards so you round up to 8 yards


Miguel babysits for 3 hours and earns $15. Which represents the unit rate?

Answers

The unit rate is $/Hr.  Since the hours are the unit being considered.


To find the unit rate, divide both sides by three

(Let x = hourly rate)

3x = 15

x = 5


Miguel Makes $5 per Hour


Answer:

He Earns 5 Per Hour

find the slope of the line

Answers

the slope is 3/-5!!!! if u go up 3 and to the LEFT 5 that means it is negative.

What does |-2 + (-1)| equal too

Answers

[tex]|-2 + (-1)|[/tex]

Well, first, we must subtract-2 by 1, as the negative sign next to 1 is inside the parentheses.

[tex]|-2 -1|[/tex]

[tex]|-3|[/tex]

Now remember, since it is an absolute value, meaning the distance from that number to zero, we will now disregard the negative sign and get our answer: 3

if 75 is added to a number, the result is 39 less than three times the number.find the number

Answers

First, we would set the number to x.

Then, we turn the words into an equation.

x+75 = 3x-39

Isolate the x.

-2x = -114

So...

x = 57

The Number is 57.

Let's call the number you're trying to find "x."

According to the information given, if 75 is added to x, the result is 39 less than three times the number, which can be expressed as:

x + 75 = 3x - 39

To solve for x, you can first get all the x terms on one side of the equation and the constant terms on the other side:

75 + 39 = 3x - x

Now, simplify the equation:

114 = 2x

To isolate x, divide both sides by 2:

x = 114 / 2

x = 57

For more such questions on Number

https://brainly.com/question/24605148

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Solve -3 1/2 = 1/2x + 1/2x + x

Answers

- 3 1/2 = 2x

-7 /2   = 2 x

-7 /4  = x

-1 3/4 = x

one number is three less than four times another. if their sum is decreased by seven, the result is twenty. find the numbers

Answers

x = 21

y = 6

x = 4y - 3

x + y - 7 = 20

Because we have a value for x, we can put it in the second equation to find the value of y.

4y - 3 + y - 7 = 20

Combine like terms.

5y - 10 = 20

Add 10 to both sides.

5y = 30

Divide both sides by 5.

y = 6

Now we can place this value of y back into the equation to find the exact value of x.

x + 6 - 7 = 20

Combine like terms.

x - 1 = 20

Add 1 to both sides.

x = 21

Heres the problems I need help with....asked this earlier to get answers that were apparently incorrect..this is about repeating decimals.

Answers

When changing a repeating decimal to a fraction, you look at the number(s) to the right of the decimal. If there is only 1 number (0.444444...) then the number that repeats is is going to be the numerator of your fraction, with the denominator being 9 (4/9). So...

1. -1 2/9 (-1 and 2/9)

2. -5/9

5. 5 8/9 (5 and 8/9)

If there are 2 or more numbers to the right of the decimal, you add 1 "9" to the denominator per repeating number (2 repeating numbers = 99, 3 repeating numbers = 999, etc...). An example to show this would be 0.87 repeating (0.87878787... = 87/99). Therefore...

3. 27/99

4. 50/99

I hope this helps!



Holly
has 25 fish in her aquarium. Tommy has one-fifth the number of fish that Holly has. Jared has three times as many fish as Tommy. If they combine all their fish in the new school aquarium, how many fish would there be in all?

Answers

25/5=3
3×3=9

25+3+9=37

There are 37 fish.
Other Questions
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Which is the best correlation between the introduction of Islam and an increase in literacy? Which word describes the amount of matter an object contains? altitude, density, mass,pressure Chemical propertiesa) Can be observed without altering the identity of a substanceb). include mass and colorc) Include changes that alter the identity of a substanced) Include changes of state of a substanceplz explain why too so i can actually learn it!! What action did Faustus take near the end of the twenty-four year bargain? A car rental company charges a $25.00 base fee plus $0.10 per mile driven to rent a car. How many miles did a customer drive if the customers bill was $37.80? Write the variable represents, equation, and miles. 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He is always kind and jolly, and will put me to rights, I know," said Jo to herself, and off she went. Amy heard the clash of skates, and looked out with an impatient exclamation. "There! She promised I should go next time, for this is the last ice we shall have. But it's no use to ask such a crosspatch to take me." "Don't say that. You were very naughty, and it is hard to forgive the loss of her precious little book, but I think she might do it now, and I guess she will, if you try her at the right minute," said Meg. "Go after them. Don't say anything till Jo has got good-natured with Laurie, than take a quiet minute and just kiss her, or do some kind thing, and I'm sure she'll be friends again with all her heart." "I'll try," said Amy, for the advice suited her, and after a flurry to get ready, she ran after the friends, who were just disappearing over the hill. It was not far to the river, but both were ready before Amy reached them. Jo saw her coming, and turned her back. Laurie did not see, for he was carefully skating along the shore, sounding the ice, for a warm spell had preceded the cold snap. "I'll go on to the first bend, and see if it's all right before we begin to race," Amy heard him say, as he shot away, looking like a young Russian in his fur-trimmed coat and cap. Jo heard Amy panting after her run, stamping her feet and blowing on her fingers as she tried to put her skates on, but Jo never turned and went slowly zigzagging down the river, taking a bitter, unhappy sort of satisfaction in her sister's troubles. She had cherished her anger till it grew strong and took possession of her, as evil thoughts and feelings always do unless cast out at once. As Laurie turned the bend, he shouted back... "Keep near the shore. It isn't safe in the middle." Jo heard, but Amy was struggling to her feet and did not catch a word. Jo glanced over her shoulder, and the little demon she was harboring said in her ear... 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