What is the best estimate for 5.07 x 0.81 ?

A. 0.4

B. 4

C. 4.5

D. 5


Please help and if so correct and answered then I’ll mark you as Brainiest Answered.

Thank you.

Answer: a is greater and less than -5 AND a is less than 5 (second choice)

Step-by-step explanation: they’re both valid inequalities when leaving the absolute value alone. |a| becomes a.

Answer:

Approximately 201.06 in² of pizza sauce is needed

(if using the approximation π ≈ 3.14, then the answer is 200.96 in²)

Step-by-step explanation:

We assume that the pizza is perfectly circular and that we want to cover the entire surface. We need the formula for the surface area of a circle which is

  A = πr²,

where r is the radius of the pizza.

By definition, the diameter is twice the radius. So the radius of this pizza is half of 16'' = 16 inches, which is 8 in.

Therefore, (using a calculator value for π instead of 3.14 approximation),

  A = π(8 in)² = 64π in² ≈ 201.06 in².

Approximately 201.06 in² of pizza sauce is needed.

If you are need to use the approximation π ≈ 3.14, then the answer is 200.96 in²

Answer:

201.06 square inches

Step-by-step explanation:

We need to cover the whole surface area of the pizza so if the pizza is a circular one (using the typical shape), then we can use the formula of the area of a circle.

Area of a circle = pi * r^2

We are given the diameter of the circle to be 16 inches so its radius will be 8 inches.

Substituting this value of radius in the formula to get:

[tex]\pi r^2[/tex] = [tex]\pi (8)^2[/tex] = [tex]201.06[/tex]

Therefore, about 201.06 square inches of pizza sause is needed to cover the pizza.

Answer:

21.

Step-by-step explanation:

As 3/4 of the students play, we just have to multiply 3/4 by the total number of students.

3/4 * 28 = 84/4, or 21. 21 students play a team sport.

Answer:

D. 45 students

25+4n=115+2n

     -2n         -2n

25+2n=115

-25         -25

2n=90

2n/2=90/2

n=45

The cost for both bus companies A and B is equal when there are 45 students on the trip. This result is achieved by setting the cost equations of the two companies equal to each other and solving for the number of students.

To solve this problem, we set the cost equations for bus companies A and B equal to each other and solve for the number of students.

For company A, the cost is $25 (rental fee) + $4 per student. For company B, the cost is $115 (rental fee) + $2 per student.

So, the equation becomes: $25 + $4 * number of students = $115 + $2 * number of students.

If you rearrange that equation and solve for the student variable by subtracting $2 * students from both sides and subtracting $25 from both sides, you end up with $2 * students = $90.

This means that the number of students, when divided by $90 and $2, is equal to 45. Thus, 45 is the number of students for the bus cost from both companies to be equal. Therefore, the answer is (d) 45 students.

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I would make a table and plug in values for "x" in the equation to find f(x) or y

x = 0

[tex]f(x)=2*(3)^x[/tex]

[tex]f(0)=2*(3)^0[/tex](there is a rule that when the exponent is 0, the result is 1)

[tex]f(0)=2*1[/tex]

f(0) = 2                   (0,2)

x = 1

[tex]f(x)=2*(3)^x[/tex]

[tex]f(1)=2*(3)^1[/tex]

[tex]f(1)=2*3[/tex]

f(1) = 6        (1,6)

You could do more points.

But these two points shows that the y-intercept (the y value when x = 0 or (0,y)) is 2, and that the graph is increasing.

Your answer is B

Graph B matches with the function.

A relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

The given function is  f(x) = 2 ([tex](3)^{x}[/tex])

So, option C is wrong

Again,

So, option D is also wrong.

Now,

So, option A is wrong

Hence option B is correct which also satisfies all the conditions mentioned above.

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Answer:

B. -6 and 4/9  

Answer:

A.   [tex] 2 \dfrac{2}{9} [/tex]

Step-by-step explanation:

[tex] -2\dfrac{1}{9} - \left(-4 \dfrac{1}{3} \right) = [/tex]

[tex] = -2\dfrac{1}{9} + 4 \dfrac{1}{3} [/tex]

[tex] = -\dfrac{19}{9} + \dfrac{13}{3} [/tex]

[tex] = -\dfrac{19}{9} + \dfrac{39}{9} [/tex]

[tex] = \dfrac{20}{9} [/tex]

[tex] = 2 \dfrac{2}{9} [/tex]

Step-by-step explanation:

First , Subtract y from both sides:

−3x = −10 −y

Second, Divide both sides by −3

x = [tex]\frac{-10-y}{3}[/tex]

That's ur answer

Hope this helped u!!!

Good luck!!

Answer:

the desired equation is y = (1/6)x + 3/2.

Step-by-step explanation:

From the graph you can see immediately that the y-intercept is (0,3/2).

This is "b" in y = mx + b.

Focus on point (-3,1).  Substitute -3 for x in y = mx + 3/2 and then 1 for y:

1 = m(-3) + 3/2

Clear this result of fractions by mult. all three terms by 2:

2 = m(-6) + 3.  Solving for m, -6m = 2 - 3, or -6m = -1.  Then m = 1/6, and the

desired equation is y = (1/6)x + 3/2.

Answer:

The correct answer is 9.

Step-by-step explanation:

Answer:

the answer is C hope this helps

Step-by-step explanation:

Answer:

-2x-4

Step-by-step explanation:

(-7x-7y-4)-(-5x-7y)=-7x-7y-4+5x+7y=-7x-4+5x=-2x-4

Answer:

-2x - 4

Step-by-step explanation:

Question: Which of the following would be considered important in including in the summary of an experimental investigation?

Answer: variables that were manipulated during the experiment

Explanation:  A variable is anything that can change in an experiment.

question answered by

(jacemorris04)

Hi There!

Answer:

A.) variables that were manipulated during the experiment

Least important to most important steps to include in a summary:

Hope This Helps :)

Because it says use -2,0,and 2 for x, we can plug those numbers into the equation. y/4=3/4(-2)+2   y/4= -1 1/2 +2 now to get x by itself, we can multiply each side by 4. y=-6+8 which equals y=2 when x=-2. Now you can do the same thing with 0 and 2 as x. You get y=8 when x=0 and y=14 when x=2.

x  |   y

-2 |  2

0  |  8

2  |  14

The absolute value of a number is its distance from zero on the number line, which is always positive or zero. If point D is -7, its absolute value would be 7, matching option D in the given choices.

The absolute value of a number is the distance of that number from zero on the number line, regardless of direction. Therefore, it is always a positive value or zero. In this case, whether point D is -6, 9, 7, or -7, the absolute value would be the positive counterpart of that number.

To find the absolute value of point D, we look for the option that falls in line with the definition of absolute value. For option A (-6), the absolute value is 6; for option B (9), the absolute value remains 9; for option C (7), the absolute value remains 7; and for option D (-7), the absolute value is 7.

Thus, considering point D is given a negative value in the question, the correct answer for the absolute value of point D is 7, which corresponds to choice C if the value of D is 7 or D if the value of D is -7.

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Answer:

B= -4.3 or -13/3

Answer:

x = $3

y = $4

Step-by-step explanation:

We need to know the prices of gravel and peas. We can find the price by using equations and graphing them.

Let X be the price of the sand

Be and the price of pea gravel

In the first purchase we have:

[tex]4x + 3y = 24[/tex]

In the second purchase we have

[tex]2x = 6[/tex]

Both relations represent the equation of a line. In the graphic shown, these lines are drawn. In this case the interception between both lines represents the price of each product, and the solution of the problem. You can see that the lines intersect at point (3 4). This means that the price of each bag of sand is $ 3, and the price of a bag of pea gravel is $ 4.

Answer:

P (black)  = 2/7

Step-by-step explanation:

We need to know the total amount of marbles.

2 red + 3 green + 2 black = 7 marbles

P ( black) = number of black marbles / total marbles

              = 2 /7

Answer: choice (3)

Open circle at -2; shading to the right of -2

==============================

Work Shown:

-2x+8 < 12

-2x+8-8 < 12-8 ... subtract 8 from both sides

-2x < 4

-2x/(-2) > 4/(-2) ... divide both sides by -2; sign flips

x > -2

To graph this, plot an open circle at -2 on the number line. Shade to the right of this open circle. The open circle means "this value is not included in the shaded solution region". The sign flips in the second to last step because we divided both sides by a negative number.

Answer:

3.     x>-2  see graph

Step-by-step explanation:

-2x+8 < 12

Subtract 8 from each side

-2x+8 -8 <12-8

-2x <4

Divide by -2 (Remember this flips the inequality)

-2x/-2 > 4/-2

x >-2

Answer:

$17,600,000

Step-by-step explanation:

First, we need to count the amount of money we pay for each episode. If each episode costs you $200,000 to make, that would be subtracted from your total amount. If there are 150,000 viewers per episode, we can multiply 150,000 by 11, because there are 11 episodes. There are 1,650,000 people watching your show! Since the advertiser pays you $12 per person, we can simply multiply 12 times the number of people. You have earned $19800000. However, we need to subtract how much it took us to make the episodes, so we multiply the number of episodes, 11, by $200,000 and subtract the product from our total amount. Your amount of profit is $17,600,000.

Hope this helps! (Brainliest please!)

Answer:

$99 000

Step-by-step explanation:

(a) No. of episodes

There are 11 episodes per season.

No. = 0.5 × 11

No. = 5.5 episodes

=====

(b) No. of viewers

There are 150 000 viewers per episode

No. = 5.5 × 150 000/1

No. = 825 000 viewers

=====

(c) Payment

The advertiser pays $12 per 100 viewers.

Pay = 825 000 × 12/100

Pay = $99 000

The advertiser will pay you $99 000.

Answer:

Although I'm not entirely sure of the question (sorry lol), any ratio that is 1.5:2 , 6:8 , 9:12 , 12:18 etc would be equivalent to 3 to 4.

Step-by-step explanation:

If you divide both 3 and 4 by 2 you'd wind up with 1.5 ( 3 ) and 2 ( 4 ). When multiplying, you'd get 3x2 = 6 and 4x2=8, 3x3 = 9 and 4x3 = 12 and so on.

Answer:

x=8.4

Step-by-step explanation:

4x + 8 (0.8) = 40

4x = 40 - 6.4

4x = 33.6

x = 33.6/ 4

x= 8.4

B) 8.4..............

Answer:

NO

Step-by-step explanation:

Because that just means they started off with 0

The error in the table is that the "total" value for miles = 40 and gallons = 8 is incorrect.

The error in the given ratio table is that the values in the "total" row are not calculated correctly based on the provided "miles" and "gallon" values.

The values in the "total" row do not match the sum of the "miles" and "gallon" values for each corresponding column.

When miles = 0 and gallons = 0, the total should also be 0.

When miles = 10 and gallons = 2, the total should be 12.

When miles = 20 and gallons = 4, the total should be 24.

When miles = 30 and gallons = 6, the total should be 36.

When miles = 40 and gallons = 8, the total should be 48 (not 49).

When miles = 50 and gallons = 10, the total should be 60.

The error occurs in the row where miles = 40 and gallons = 8. The "total" value is listed as 49 instead of the correct value, which should be 48. So, the error in the table is that the "total" value for miles = 40 and gallons = 8 is incorrect.

for such more question on error

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Answer:

3 7/10

Hope that helped!

Answer:

3.7 converted into a fraction is [tex]\frac{37}{10}[/tex]

Step-by-step explanation:

Answer:

(-1,4)

x=-1,y=4

Step-by-step explanation:

To solve by elimination, add the two equations together to eliminate y.

5x-4y=-21

-2x+4y=18

-----------------

3x = -3

Divide by 3

3x/3 = -3/3

x=-1

Now we still need to find y

-2x + 4y = 18

-2(-1) +4y =18

2+4y =18

Subtract 2 from each side

-2+2 + 4y = 18-2

4y = 16

Divide by 4

4y/4 = 16/4

y =4

Answer -7

Step-by-step explanation:

Answer: If the question you are asking is how many meters Tracy ran per minute the answer would 200 meters per minute

Step-by-step explanation:

1) You would take 1,000 and divide it by 5

In order to check your work you can just multiply 200 by 5.

Hope this helped!

Answer:

I believe the answer to your question is p = 33

Step-by-step explanation:

Question: p÷3 - 7.2 = 3.8

Step 1: Add 7.2 to both sides of the equation

p÷3 - 7.2 = 3.8

+7.2           +7.2

p÷3 = 11

Adding 7.2 to both sides cancels out 7.2 on the left and whatever you do unto one side of an equation, you must do to the other (it's just a rule in math)

Step 2: Multiply by 3 on both sides

p÷3 = 11

x 3     x 3

p = 33

Same as last time; multiplying by 3 cancels out 3 on the left and whatever you do unto one side, you must do to the other

Answer:

p=33 is the answer

Step-by-step explanation:

Answer:

16 nickels thicker

Step-by-step explanation:

You would need 20 nickels for 1 dollar and only 4 quarters for 1 dollar.  Do 20 minus 4 and your answer is 16 nickels. The stack of nickels is 16 coins thicker. Hope this helped!

Answer:

The property for 8 +0 = 8, Additive Identity Property