Reasoning Explain why either a or b must be 0 if ab = 0, but neither a nor b
must be 4 when ab = 4.

Answers

Answer 1
By the zero product property, a or b must be 0 if ab = 0. Or you could solve for each variable.

Divide both sides by b:
b=0/a —> b=0

Divide both sides by b:
a=0/b —> a=0

Hmm A could be 4 and b could be 1 because 4*1=4

Related Questions

can somebody help with this no fake answers please im kinda low

In a survey of the students in a class, it was found that 9 students worked during summer holidays. If this represents 25% of the class, how many students are there in the class?

Answers

Step-by-step explanation:

let the total students be x then

25/100x=9

x=9×100/25

x=9×4

x=36

so total students are 36

HELP ME ASAP PLEASE ?!?
If the sides of a square are 9, then the diagonal is

Answers

Answer:

Would diagonal mean triangle so: 9/2 which is

4.5? Sorry if it is wrong!

What is 4.89 + ? = 11.26

Answers

Answer:

The answer is 6.37.

Step-by-step explanation:

Please pick me as brainlest answer

Answer:

6.37

Step-by-step explanation:

11.26 - 4.89 = 6.37

Hope this help ;)

Z-Grand Shipping Company manufactures boxes in the shape of a cube.
The formula for the surface area of a cube is 6s, where s is the length of one side.
Z-Grand Shipping Company manufactures large boxes with a side length of 6 feet. The surface area of each large box is
square feet
The company also manufactures small boxes with a side length of 3 feet. The surface area of each small box is
square feet
The surface area of the large box is times larger than the small box.

Answers

Answer:

Z-Grand Shipping Company manufactures boxes in the shape of a cube.

The formula for the surface area of a cube is 6s, where s is the length of one side.

Z-Grand Shipping Company manufactures large boxes with a side length of 6 feet. The surface area of each large box is 216

square feet

The company also manufactures small boxes with a side length of 3 feet. The surface area of each small box is 54

square feet

The surface area of the large box is 4 times larger than the small box.

{So for the first line which is The surface area of each large box is

square feet.}

Ans;216

{The second line which is The surface area of each small box is

square feet.]

Ans;54

{The Third line which is The surface area of the large box is times larger than the small box.}

Ans;4

Thank you So much Hope this helps you! Please Mark Brainleast looking forward to help everyone ty!

The surface area of each small box is 54 square feet and each large box is 216 square feet.

What is the area of cube?

The formula for the surface area of a cube is 6s, where s is the length of one side.

We are given that Z-Grand Shipping Company manufactures large boxes with a side length of 6 feet.

The surface area of each large box is 216 square feet

The company also manufactures small boxes with a side length of 3 feet. The surface area of each small box is 54 square feet

The surface area of the large box is 4 times larger than the small box.

The surface area of each large box = 216 square feet.}

The second line which is The surface area of each small box is

= 54 square feet.

The Third line which is surface area of the large box is times larger than the small box is;

4

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There is 5/6 of an apple pie left from dinner. Tomorrow, Victor plans to eat 1/6 of the pie that was left. How much of the whole pie will he eat tomorrow?
1/36

5/36

1/3

2/3

Answers

Answer:

2/3

Step-by-step explanation:

there will be 4/6 of the pie and simplify to be 2/3

If Mr.Novak gives 9 packs of paper to a group of 5 students. If the group shares the paper equally. How many packs of paper does each student get? Write the answer as a mixed number.

Answers

Each student gets 1 whole pack of paper and 4/5 of a pack.

What is a division in mathematics?

Division is a mathematical operation that is used to determine the number of times one number, called the dividend, is contained within another number, called the divisor. The result of a division operation is called the quotient.

When a group of students share a certain number of items equally, it means that each student will receive the same number of items. To find out how many items each student will receive, we need to divide the total number of items by the number of students.

In this case, Mr. Novak gives 9 packs of paper to a group of 5 students. To find out how many packs of paper each student gets, we need to divide 9 by 5. We can use long division or use a calculator to find that 9 divided by 5 is 1 with a remainder of 4. So, each student will get 1 whole pack of paper, and the remaining 4 packs will be shared among the students. This can be written as a mixed number, which is a combination of a whole number and a fraction. In this case, the mixed number would be 1 4/5.

Hence, each student gets 1 whole pack of paper and 4/5 of a pack.

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Mrs. Rogers sold 48 out of 80 crafts at the fair. What percent of her crafts did she sell? ~Plz answer like ASAP!!thank you :)) ~

Answers

Answer:

38.4

38.4 is 48% of 80

Step-by-step explanation:

What is 48% of 80?

Y is 48% of 80

Equation: Y = P% * X

Solving our equation for Y

Y = P% * X

Y = 48% * 80

Converting percent to decimal:

p = 48%/100 = 0.48

Y = 0.48 * 80

Y = 38.4

Teri earned $18.25 an hour at the semiconductor plant. The payroll deductions reduced her paycheck by $182.50. If her first weekly paycheck was at least $547.50 after the deductions, how many hours did she work that week?

Answers

Answer:

40 hours

Step-by-step explanation:

did 18.25*40 then subtracted 182.50 and it equaled 547.50

10 - 2.5x > 35
I need help​

Answers

Answer:

x<-10

Step-by-step explanation:

10-2.5x>35

2.5x>10-35

2.5x>-25

x>-25/2.5

x>-10

x<-10

Answer:

x < -10

Step-by-step explanation:

-2.5x > 35-10

-2.5x > 25

-2.5x > 25/-2.5

x > -10

You have to switch the sign because you divided it by negative

x<-10

Neeeeeeeeeeeedddddddd hellllllllppppppppppp

Answers

Answer:

0.8333333 which goes on forever

Step-by-step explanation:

Anthony is buying a new TV that is 25% off. The original price of the TV was $390.
Which answer gives the best estimate for the TV's price after the discount?

$390
$365
$300
$100

Answers

Answer:

390 well actually 389.75 but still

Is (4, 2) is the solution to the system below?
Explain how you know by recording an audio response or by showing your work.
y=2x-6
x+y=8

Answers

It is not a solution because when it is plugged into the second equation x+y=8, making it 4+2=8, it is not true.

PLZZZ HURRY!

Cassie has a wood board that is 34 foot long. She wants to cut the board into pieces that are 18 foot long. Which expression will help Cassie find how many pieces she can cut?

A. 34−18

B. 34÷18

C. 18⋅34

D. 18÷34

Answers

Answer:

B

Step-by-step explanation:

The answer is 3/4 divided by 1/8

In 10 years time a father will be twice as old as his daughter. 10 years ago he was six times as old as his daughter. How old is each now?

Answers

Answer: the daughter is 15 and the dad is 40

i think unless my math is wrong

Step-by-step explanation:

2/3(x+6)=-8 whats the value of x?

Answers

Answer:

x=-18

Step-by-step explanation:

Answer:

The answer is -18

Step-by-step explanation:

STEP 1:

[tex]3 \times \frac{2}{3} (x + 6) = 3( - 8)[/tex]

2(x+6) = -24

______________________________________

STEP 2:

Divide both sides by 2:

[tex] \frac{2(x + 6)}{2} = \frac{ - 24}{2} [/tex]

________________________________

STEP 3:

Simplify:

[tex]x + 6 = - 12[/tex]

Subtract 6 from both sides:

[tex]x + 6 - 6 = - 12 - 6[/tex]

________________________________

STEP 4:

[tex]x = - 18[/tex]

Therefore, your answer is -18.

Ask more questions if you don’t understand! :)

Tell whether the ordered pair is a solution of the system of linear equations.

8x+2y=2
2x+y=15
(1,3)

Answers

Answer:

Step-by-step explanation:

8x + 2y = 2

-4x - 2y = -30

4x = 28

x = 7

14 + y = 15

y = 1

(7, 1)

Solve for x. (photo included)

Answers

The answer might be 8 but I am just trying to get points

I NEED HELP FAST PLEASE :)

Answers

Answer:945

Step-by-step explanation:

Given ---AB || ---RS Prove: QA/QR = QB/QS

Answers

2. Reflective property
3. Corresponding angles are congruent
4. Angle side angle ?
5. ?

The prove for QA/QR = QB/QS is shown below.

What is Similarity of Triangles?

Two triangles are said to be comparable if their two sides are in the same ratio as the two sides of another triangle and their two sides' angles inscribed in both triangles are equal.

If two triangles have an equal number of corresponding sides and an equal number of corresponding angles, then they are comparable.

1) Given

2) <Q is congruent to <Q

by reflexive property of congruence

3) <QBA is congruent to <QSR

by alternate interior angles theorem

4) Triangle QBA is similar to triangle QSR

by AA theorem

5) QA/QR=QB/QS

by CPSP (corresponding parts of similar polygons are proportional)

Learn more about Similarity here:

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Combine the like terms to simplify the expression 16y - 7y.

Answers

the answer is 9y that’s the simplified expression

Answer:

9y is the simplified expression your looking for.

Step-by-step explanation:

what is the range of possible sizes for x?

Answers

Answer:

0.5 < x < 15.5

Step-by-step explanation:

Triangle Inequality Theorem

Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:

x + y > z

x + z > y

y + z > x

Combining the above inequalities, and provided y>z, the third size must satisfy:

y - z < x < y + z

The two side lengths given in the triangle of the figure are y=8.5, z=8.0, thus the possible values of x lie in the interval

8.5 - 8.0 < x < 8.5 + 8.0

0.5 < x < 15.5

Five friends share 6 snacks equally.
How many fruit snacks will each friend get?

Explain with examples.

Answers

Each friend will get 1 1/5
Since there is 5 friends and 6 snacks each can get one but will have to share 1/5 equally of the last snack.

Answer:

A

Step-by-step explanation:

Ken is cutting wooden pieces that each measure 2/3 ft long. If ken is cutting from a piece that measures 9 1/3 ft, how many pieces can ken cut

Answers

Answer:

14 pieces

Step-by-step explanation:

Given that the total length available is 9 1/3 ft long and the pieces being cut is 2/3 ft long, the number of pieces that may be cut may be computed by dividing the total length by the length of each piece

= 9 1/3 / 2/3

= 28/3 * 3/2

= 14 pieces

7 x ( h + 4 ) for h = 3

Answers

Answer:

is h is 3, then your answer would be 21 + 28 = 49

since 7 x 3 = 21 and 7 x 4 = 28 you add 21 and 28 which would get you 49

Answer:

h = 3

Step-by-step explanation:

7 x ( h + 4 )=7×(3+4)=7×7=49

Evaluate if x = 2, y = 4, and z = 3.
x2 + xyz

Answers

Answer:

28

Step-by-step explanation:

If x=2 then 2x2 is 4

Plus 2x4x3= 28

Hope this helps! :D

If x=2 then 2*2 is 4
Plus 2*4*3=28
28

HELP HELP HELP HELP FAST

Answers

Answer:

[I didn't do it right]

Step-by-step explanation:

[Deleted since it has been said to be wrong and I would not like to spread misinformation]

Guys I need this in like 3 mins help
Me

Answers

Answer:

A) M =5

B= $2

hope it helped!

Step-by-step explanation:

I think.

CAN SOMEONE PLZ HELP ME

The price of a visit to the dentist is $50. If the dentist fills any cavities, an additional charge of $100 per cavity gets added to the bill.

If the dentist fills n cavities, what will be the cost of the visit to the dentist?

Write your answer as an expression.

Answers

Answer:

The expression for the total cost of the visit to dentist is T = 50 + 100n .

Step-by-step explanation:

As given

The price of a visit to the dentist is $50.

If the dentist fills any cavities, an additional charge of $100 per cavity gets added to the bill.

If the dentist n cavities .

Let us assume that the total cost of the visit to dentist be T.

Than the expression becomes

T = 50 + 100n

Therefore the expression for the total cost of the visit to dentist is T = 50 + 100n .

Brad has a garden with dimensions 12 feet long x 7 feet wide. He wants to enlarge the garden to an area of 119 square feet. How much farther will he need to extend the length of the garden to attain his desired

Answers

Answer:

the length will need to be increased by 5 feet

He will need to 5 feet extend the length of the garden to attain his desired.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Brad has a garden with dimensions 12 feet long x 7 feet wide.

And, He wants to enlarge the garden to an area of 119 square feet.

Now,

Let the number of additional feet added to the length = x

So, We can formulate;

⇒ 7 (12 + x) = 119

⇒ 84 + 7x = 119

⇒ 7x = 119 - 84

⇒ 7x = 35

⇒ x = 5

Thus, He will need to 5 feet extend the length of the garden to attain his desired.

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Please help due today

Answers

Answer:

3 & 1

6 & 2

9 & 3

12 & 4

Step-by-step explanation:

Hope that helps!

Dollars- 9
Pounds- 2, 4
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