4.40x2.50
i really need this please

Answers

Answer 1

Answer:

11

Step-by-step explanation:

If it is correct, could you please give me brainliest? I would really appreciate it! Thank you!


Related Questions

f(x)=1/2x+8 reflect x axis

Answers

The function of reflect x-axis is g(x) =  -(1/2)*x - 8, according to the question.

What do you mean by function?

A function in mathematics from a set X to a set Y assigns exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.

According to the given question,

First, let's define a reflection over the x-axis.

If we have a point (x, y) and we reflect it over the x-axis, our new point will be (x, -y).

Now, when we have a function

f(x) = y, the points can be written as:

(x, y = f(x) ) = (x, f(x))

Then, after the reflection over the x-axis, we have:

(x, y = g(x)) = (x, -f(x))

So now we have g(x) = -f(x)

and we know that f(x) = (1/2)*x + 8

then our new function is g(x) =  y = -f(x) = -( (1/2)*x + 8) = -(1/2)*x - 8.

g(x) =  -(1/2)*x - 8.

Therefore, the required answer is g(x) =  -(1/2)*x - 8.

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y=9.44x+84.182
is this function a good model for the data

Answers

Answer:

Step-by-step explanation:

443

Math Please help!!!!! Linear vs Exponential

Answers

Answer:

linearadditivelycommon differenceabout 240.12

Step-by-step explanation:

Given the values in the table, you want to know if they represent a linear or exponential relation, along with the common difference or ratio, as applicable.

Changes

The first attachment shows the differences and ratios between successive table values. Neither the differences nor the ratios are constant. The wide variation in ratios and the relatively smaller variation in differences suggests the table is best modeled by a linear function.

Changes when the function is linear are additive. That is, the function values have a common difference.

Common difference

The average difference between table values is (949.92 -229.44)/3 = 240.16. A linear regression analysis gives a slope of 240.12 as the "best fit" to the table values.

You can see from the first attachment that the differences are not constant, so there isn't really a common difference. The difference is approximately 240.12.

__

Additional comment

The second attachment shows linear and an exponential regression applied to this data. The residuals are much smaller for the linear approximation.

The slope of the line (common difference) is estimated at 240.12 using the regression formula. This makes the mean square residuals a minimum. As we show above, this slope is different (slightly lower) than the slope of the line through the first and last data points.

Your redecorating your bedroom, and you want to put in a dressing table. The wall where you want to put it measures 4.7m. There is also a cupboard door on this wall, which takes up 410mm. The dressing table you like is 123cm wide. Once you've bought the dressing table , how much space on the wall, do you have left, not including the cupboard doors? I need this working out in metres please.

Answers

Answer:

3.06 meters

Step-by-step explanation:

The first thing you want to do, since we are working with different units here, is find out how many centimeters make a meter... and so on.

1cm = 0.01m

1mm = 0.001m

123cm = 1.23m (Dressing table)

410mm = 0.41m (Cupboard door)

Now all we need to do is subtract.

We can add the two numbers together or (If you prefer) subtract separately.

1.23 + 0.41 = 1.64

Now subtract that number from the measurement of the wall:

4.7 - 1.64 = 3.06

The amount of space left is 3.06m.

The variables a, b, c, and d are graphed on the number line shown.
Use the number you answer the questions in the chart

Answers

The correct values are;

⇒ a - d = - 2

⇒ c - a = 7

⇒ b - c = - 8

⇒ d - c = - 5

What is Number line?

Number line is a horizontal line where numbers are marked at equal intervals one after another form smaller to greater.

Given that;

The number line is shown in figure.

The values are,

a = - 3

b = - 4

c = 4

d = - 1

Now,

All the values are find as;

⇒ a - d = - 3 - (- 1)

           = - 3 + 1

           = - 2

⇒ c - a = 4 - (-3)

           = 4 + 3

           = 7

⇒ b - c = - 4 - 4

           = - 8

⇒ d - c = - 1 - 4

           = - 5

Thus, The correct values are;

⇒ a - d = - 2

⇒ c - a = 7

⇒ b - c = - 8

⇒ d - c = - 5

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What number represents 3,675,100,608 rounded to the nearest million?

Answers

The number 3,675,000,000 represents 3,675,100,608 rounded off to the nearest million.

Rounding off large numbers.

When we round off large numbers, we consider the digit to the right of the number occupying the place value for which we are rounding off to. If the digit to the right is 4 or less, we round down (we leave the number we are rounding to), but if the digit is 5 or higher, we round up (we increase the digit we are rounding by 1). and thus round to the indicated place value.

From the question, we have the large number;

3,675,100,608

the digit 5 indicates the place value (million)

and the digit 1 is to the right and will be rounded down.

Therefore, the number 3,675,000,000 represents 3,675,100,608, rounded to the nearest million.

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what is [tex]\sqrt{49}[/tex]

Answers

The square root of 49 is 7

Answer:7

Step-by-step explanation:

What it is asking you is what multiplied by it self gets you to 49. the answer would be 7 because 7*7=49

Is the sum of 3.04 and √20 rational or irrational? Explain.

Answers

Answer:

Irrational

Step-by-step explanation:

A rational number can be expressed as p/q where p and q are integers

3.04 is rational since it can be expressed as 304/100

√20 is not rational. √20 = √(4·5) = √4·√5 = 2√5
While 2 is a rational number, √5 is irrational since 5 is a prime number and square roots of primes are not rational

An irrational number multiplied by a rational number is irrational so √20 is irrational

An irrational number added to a rational number results in an irrational number.

So 3.04 + √20  is irrational

Rewrite in simplest terms:

6
(
6
p

9
)

10
p
−6(6p−9)−10p

Answers

Answer:

Step-by-step explanation:

6(6p-9)-10p-6(6p-9)-10p

36p-54-10p-36p+54-10p

36p-36p-54+54-10p= -10p

During a test, 3 out of 100 cars selected at random were found to be defective. Use this ratio to estimate the number of defective cars if 1,500 cars are tested.

Answers

There are 45 defective cars if 1,500 cars are tested.

What is mean by Ratio?

A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities.

Given that;

During a test, 3 out of 100 cars selected at random were found to be defective.

Now,

Since, During a test, 3 out of 100 cars selected at random were found to be defective.

Let number of defective cars if 1,500 cars are tested = x

So, By definition of ratio, we get;

⇒ 3 / 100 = x / 1,500

Solve for x as;

⇒ 3 × 1500 / 100 = x

⇒ 3 × 15 = x

⇒ x = 45

Thus,  There are 45 defective cars if 1,500 cars are tested.

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You are a construction worker who is laying down concrete drainage pipes. Each pipe is 5 feet long and 3 inches thick, and has an outside diameter of 6.5 feet. You lay down 4 drainage pipes end to end.

At any given time, what is the volume of water that passes through the 4 drainage pipes at half capacity? Round the answer to the nearest tenth of a cubic foot.
141.3
165.8
282.6
306.6
565.2

Answers

Answer:

Volume = 282.6 ft.²

Step-by-step explanation:

Volume: V = πr²h

Step 1: The answer needs to be in cubic feet, so convert all units to feet

    1. 3 ft./12 in. = 0.25 ft.

Step 2: Subtract 0.5 ft from 6.5 ft to find the actual diameter of the pipe that the water will be passing through

    2. 6.5 ft. - 0.5 ft. = 6 ft.

Step 3: Plug 3 ft. (radius), 3.14 for π, and 5 ft for h

    3. V = (3.14)(3 ft.)²(5 ft.)

Step 4: Solve for the V (volume)

    4. V = (3.14)(9 ft.)(5 ft.) → V = (28.26)(5) → V = (28.26)(5) → V = 141.3 ft.²

Step 5: Divide 141.3 by 2, since we want half the capacity

    5. 141.3 ft.²/2 = 70.65 ft.²

Step 6: Multiply 70.65 by 4 since we want the total volume of water passing through four pipes

    6. 70.65 ft.² ∙ 4 = 282.6 ft.²

How many real solutions does the system have ? y = - 3x - 1; y = x ^ 2 - 3x + 4

Answers

The only solution the system of the equation has is x = -1/3.

The number of solutions is one.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

We have,

The system of equations:

y = -3x - 1

y = x² - 3x + 4

The solutions of the equation.

y = 0

So,

-3x - 1 = 0

-3x = 1

x = -1/3

x² - 3x + 4 = 0

It is in the form of ax² + bx + c = 0

a = 1, b = -3, and c = 4

Now,

x = -b ± √(b² - 4ac) / 4a

x = 3 ± √(9 - 16) / 4

x = 3 ±√-7 / 4

x = 3 ±i√7 / 4

This is a complex root.

So,

These are not real solutions.

Thus,

The only solution the system of the equation has is x = -1/3.

The number of solutions is one.

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30+ w =150 what does w equal?​

Answers

Subtract 30 from both sides to isolate w

30-30+w=150-30

w=120

We can substitute w=120 back into the equation to check it:

30+(120)=150



Jackson’s motorcycle gets 28 kilometers per liter. He drives 336 kilometers and gas is $1.43 per liter. Complete parts (a) and (b) below.

(A) how much does the gas used for the trip cost?
-round to the nearest cent as needed-

(B) how many miles per gallon does Jackson’s motorcycle get?
-round to the nearest cent as needed-

Answers

The gas for the Trip cost is $8.39

The amount of gas motorcycle needed is 12 Liter of gas.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Jackson’s motorcycle gets 28 kilometers per liter.

He drives 336 kilometers and gas is $1.43 per liter.

The amount of gas motorcycle needed

= 336/28

= 12 Liter of gas

and, The gas for the Trip cost = 12/1.43

                                                  = $8.39

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The equation of line u is y–3=7(x–5). Parallel to line u is line v, which passes through the point (1,9). What is the equation of line v?

Answers

Answer:

y - 9 = 7(x - 1)

Step-by-step explanation:

The given equation is in Point Slope Form:  y - y₁ = m(x - x₁)

m is the slope, and parallel lines have the same slope (7)

x₁ and y₁ are the coordinates of a point on the line

Will give brainliest
50 points

Answers

Answer: D

Step-by-step explanation:

The parent function abs(x) is a V, similar to graph B.

When it is multiplied by a negative number then it reflects across the Y axis, and if the number is greater than 1, then the graph is horizontally compressed (like you're squishing the sides together, closer to each other).  If the number is less than 1, either decimals or a fraction, then it is stretched (like you are pulling the sides away from each other and they are getting wider).  

In this case you are multiplying abs(x) by 4, which is greater than 1 so it is compressed by a factor of 4, and then multiplying it by a negative, which reflects it across the y axis.


Owen went to Best Buy to purchase a new laptop. He put a down payment of $200 and will pay $75 each month until he pays it off. Use the
formula p= 200 + 75c to identify which statement below is false.

The ‘p’ is represented as the dependent variable

The ‘c’ represents the number of months

The independent variable is 75

The ‘c’ is represented as the independent variable

Answers

Owen went to Best Buy to purchase a new laptop. He put a down payment of $200 and will pay $75 each month until he pays it off. Use the

formula p= 200 + 75c to identify which statement below is false.

The ‘p’ is represented as the dependent variable [true]

The ‘c’ represents the number of months [true]

The independent variable is 75 [FALSE]

The ‘c’ is represented as the independent variable [true]

“The independent variable is 75” would be false because 75 is not a variable. A variable is a letter with a hidden value.

The area of the smaller regular pentagon is about 27.5 cm².
What is the best approximation for the area of the larger regular pentagon?
11cm²
172 cm²
70 cm²
275 cm²

Answers

Answer:172 cm²

Step-by-step explanation:

when we use the formula, and we can  solve out is like 172.05 and round to tenth and will have the answer

Formula is 1/2 × p × a  

how much does a basket of apples weigh

Answers

Answer:

42-48 pound" number.

Step-by-step explanation:

If 3(x + 5) + 2 = 5, what is the value of x?

Answers

Answer:

-4

Step-by-step explanation:

3x+15+2=5

3x=-15-2+5

3x=-12

x=-12/3

x=-4

Answer:

x=-4

Step-by-step explanation:

Given:

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

To find:

The value of x.

Explanation:

It is given that,

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

That implies,

[tex]3(x+5)+2=5\\3x+15+2=5\\3x+17=5\\3x=5-17\\3x=-12\\x=-\frac{12}{3} \\x=-4[/tex]

Hence, the value of x is -4.

Solve 4x - 3 = 17
x = ?…

Answers

Answer: x=5

Step-by-step explanation:

4x-3=17 Add three to both sides

4x=20 Divide both side by 4 to isolate x

x=5

Follow the order of operations.

4x - 3 = 17

Add 3 to both sides.

4x = 20

Divide 4 from both sides.

X = 5.

Adante begins to evaluate the expression 3 1/3x5 1/4using the steps below.
3 1/3 x5 1/4
(3 1/3x(5+1/4)
(3 1/(3+1/3)(1/4)

Answers

Step-by-step explanation:

Here you are the answer.

solve 3x+1=-5 by graphing. then find the x- and y-intercepts

Answers

The graph of the equation is shown below

The x-intercept is -2

The y-intercept is undefined

Graph of linear equations and determining the intercepts

From the question, we are to solve the equation by graphing and determine the x- and y-intercepts

The given equation is

3x + 1 = -5

To determine the x-intercepts, we will solve the equation

3x + 1 =-5

3x = -5 - 1

3x = -6

Divide both sides by 3

x = -2

Since, y is not defined in the equation, the y-intercept is undefined

The graph of the equation is shown below.

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I need help please help me

Answers

Answer:

GM = 18

Step-by-step explanation:

JK = KL = 2

GJ = LM =7

GM = 7+2+2+7 = 18!

So the answer it is 18.

I need help in this 8th grade only part B and D

Answers

a) The first term of the sequence is; ³¹/₆

b) The term to term rule is; aₙ = ³¹/₆ + (n - 1)²/₆

c) The next three terms are; ³⁷/₆, ³⁹/₆, ⁴¹/₆

d) The 10th term in the sequence is; a₁₀ = ⁴⁹/₆

How to find the nth term of a sequence?

The first term of the sequence is given by the expression;

2 ÷ ¹²/₃₁ = ³¹/₆

The second term of the sequence is given by the expression;

3 ÷ ⁶/₁₁ = ³³/₆

The third term of the sequence is given by the expression;

5 ÷ ⁶/₇ = ³⁵/₆

These are the first three terms of a sequence and so the sequence is;

³¹/₆, ³³/₆, ³⁵/₆,....

d = ³³/₆ - ³¹/₆ = ²/₆

Thus, term to term rule is given by the nth term of an arithmetic progression;

aₙ = ³¹/₆ + (n - 1)²/₆

The next three terms are; ³⁷/₆, ³⁹/₆, ⁴¹/₆

The 10th term in the sequence is;

a₁₀ = ³¹/₆ + (10 - 1)²/₆

a₁₀ = ³¹/₆ + ¹⁸/₆

a₁₀ = ⁴⁹/₆

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A bakery can make 640 bagels in 4 hours how many can it make in 8 hours and 6 hours.PLEASE HURRY UP THIS IS DUE IN 10 MINUTES <3333

Answers

Hello!

What does this problem want:

how many bagels in 8 hourshow many bagels in 6 hours

What we need to find: rate of bagels made per hour

    [tex]\text{Rate}=\frac{\text{Total number of bagels}}{\text{Number of hours}} =\frac{640}{4} =160 \text{ bagels per hour}[/tex]

Thus

how many bagels in 8 hours

                 8 * 160 = 1280 bagels

how many bagels in 6 hours

                6 * 160 = 960 bagels

Hope that helps!

Is (x + 7) a factor of f(x) = x3 − 3x2 + 2x − 8? Explain your reasoning.

Answers

X + 7 is not a factor of [tex]x^{3}[/tex] -3[tex]x^{2}[/tex] +2x -8 because it gives a remainder when x + 7 divides it.

What is a remainder?

The remainder is the portion of the dividend that cannot be fairly divided by the divisor. After dividing whole numbers to find the quotient, the part that is left is called the remainder.

to know if x + 7 is a factor, x = -7 when substituted should give 0 as a remainder otherwise it is not a factor.

By substituting x = -7 we have

[tex](-7)^{3}[/tex] [tex]-3(-7)^{2}[/tex] +2(-7) - 8 = -343 -147 -14 - 8  which is -512

Therefore x + 7 is not a factor of the function.

In conclusion x + 7 is not a factor of [tex]x^{3}[/tex] -3[tex]x^{2}[/tex] +2x -8

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Answer:

What he said!

Step-by-step explanation:

The radius of a cone is 2.5 units. The volume of the cone is 19 cubic units

Answers

The formula for the volume of a cone is given by the following equation:

V = 1/3 * π * r2 * h

where V is the volume of the cone, r is the radius of the cone, and h is the height of the cone.

In this case, we are given that the radius of the cone is 2.5 units and the volume of the cone is 19 cubic units. We can use this information to complete the expression that represents the height of the cone as follows:

V = 1/3 * π * r2 * h

19 cubic units = 1/3 * π * 2.5 units2 * h

19 cubic units = 1/3 * π * 6.25 units2 * h

19 cubic units = 1/3 * 19.63 units2 * h

19 cubic units = 6.54 units2 * h

h = 19 cubic units / 6.54 units2

h = 2.9 cubic units / 6.54 units

Therefore, the expression that represents the height of the cone is 2.9 cubic units / 6.54 units.

11. Ms. Still is ordering pizza and breadsticks for a school pizza party and has a budget of no more than
$91. An order of breadsticks, x, costs $7 and a pepperoni pizza, y, costs $13.
a. Write a linear inequality that describes the situation.
b. Graph the situation. Label the axes.
c. Is (5, 5, 4) a solution to the inequality? Does this oved pair make sense for this situation? Explain.

Answers

The inequality that represents the situation given will be  

7x + 13y ≤ 91.

What is inequality?

An inequality in mathematics depicts the connection between two values in an algebraic statement that are not equal. One of the two variables on the two sides of the inequality may be greater than, greater than or equal to, less than, or less than or equal to another value, according to inequality signals.

The inequality that represents the situation given will be  7x + 13y ≤ 91.

From the information given, Crawford is ordering pizzas and breadsticks for a school pizza party and has a budget of $91, but no more and an order of breadsticks costs $7 while a pepperoni pizza costs $13.

Therefore, the inequality that represents the situation given will be  

7x + 13y ≤ 91.

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If a certain electromagnetic wave has a wavelength of 100m, what type of electromagnetic wave is it?

Answers

Answer: Radio

Step-by-step explanation:

An electromagnet wave with a wavelength of 100m is a Radio. These signals are invisible to the human eye, humans are only able to detect visible light.

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