round 7,834 to the nearest hundred​

Answer:

[tex]10 + (\frac{2}{3}) a = 50[/tex] is the CORRECT equation.

Step-by-step explanation:

The given question is INCOMPLETE.

Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.” Javier writes the equation { 10 + 2/3} where a is the tree’s age in years. His equation is not correct. What error did he make?

Now here:

a:  The tree’s age in years.

Also,  “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.”

⇒ 10 +  two-thirds of that tree’s age  = 50

[tex]\implies 10 + (\frac{2}{3}) a = 50[/tex]

But in the equation written by Javier, the the third fraction is NOT MULTIPLIED by the age of the tree a in Years.

So, the written equation by Javier is Incorrect.

Now, solving the written correct equation for the value of a, we get:

[tex]\implies 10 + (\frac{2}{3}) a = 50\\\implies (\frac{2}{3}) a = 40\\\implies a = 40 \times (\frac{3}{2}) = 60\\\implies a = 60[/tex]

Hence the correct  age of the tree = 60 years

Answer:

B) 3(2x+3)^2

Step-by-step explanation:

12x^2+36x+27

factor out the 3 first,

3(4x^2+12x+9)

factor out the trinomial 4x^2+12x+9,

3(2x+3)(2x+3)

3(2x+3)^2

Answer:

B. 3(2x + 3)2

Step-by-step explanation:

Answer:

f^-1 (x)=1/5x-4/5

Step-by-step explanation:

y=5x+4

x=5y+4

5y=x-4

y=1/5x-4/5

Answer:

I WOULD SAY THAT THE ANSWER IS C

Step-by-step explanation:

I GOT IT FROM A

                          P

                          E

                          X

The height of a parallelogram can be found by solving the equation 'Area = base × height' given the area is 175 square centimeters and the height is 18 centimeters less than the base. The base 'b' and the height 'b - 18' form a quadratic equation that can be solved to find 'b', after which subtracting 18 will give the height.

The question is asking to find the height of a parallelogram given its area and a relationship between the base and the height. The area of a parallelogram is found using the formula Area = base × height. According to the given information, we know that the area is 175 square centimeters. The relationship between the base and the height of the parallelogram is such that the height is 18 centimeters less than the base. Therefore, we can denote the base as 'b' and the height as 'b - 18'. Plugging these into the formula for the area we get 175 = b × (b - 18).

To solve for 'b', we can set up and solve a quadratic equation. After finding the value of 'b', we can calculate the height by subtracting 18 centimeters from our value for 'b'. Let's go through the steps:

After solving the quadratic equation, we would get the value of 'b' and accordingly the value of 'b - 18' which is the height of the parallelogram in centimeters.

Answer:

Step-by-step explanation:

12 inch = 1 ft.

12 inch can be be written as (5 + 5 + 2) inch.

It is given that, 5 inches require for 12 beads.

Hence, (12 + 12) = 24 beads will take up (5 + 5) = 10 inches.

There are 2 inches more to fill.

5 inches required for 12 beads.

1 inch required for [tex]\frac{12}{5}[/tex] beads.

2 inches will be required for [tex]\frac{24}{5}[/tex] beads.

[tex]\frac{24}{5} = 4.8[/tex].

Hence, there will 24 + 4 = 28 beads in total. (Only 4 is added instead of 4.8 because, the number can not be in fraction and there is no space for 29 beads in total).

Answer:

f(x) = x³ - 3x² - 10x

Step-by-step explanation:

Given that the zeros are x = - 2, x = 5 and x = 0 then the factors are

(x + 2), (x - 5) and (x - 0) = x

The polynomial is the product of it's factors, thus

f(x) = x(x + 2)(x - 5) ← expand factors using FOIL

     = x(x² - 3x - 10) ← distribute parenthesis by x

     = x³ - 3x² - 10x

Answer:

[tex]\large \boxed{\text{39 ft}}[/tex]

Step-by-step explanation:

Let x be the distance from the foot of the ladder to the base of the building.

We have a right triangle, so we can use Pythagoras' Theorem.

[tex]\begin{array}{rcl}80^{2} + x^{2}& = & 89^{2} \\6400+ x^{2} & = & 7921\\x^{2} & = & 1521\\x & = & \sqrt{1521}\\& = &\mathbf{39}\\\end{array}\\\text{The foot of the ladder will be $\large \boxed{\textbf{39 ft}}$ from the base of the building,}[/tex]

Answer:

Emily decides marbles the ratio of marbles is 2 to 3 she adds 3 times more to that.

Step-by-step explanation:

Answer:

Step-by-step explanation:

I have 2/3 of milk and I need 6/3 so my neighbor gave me 3

Answer: ( -6 , -6.5 )

Step-by-step explanation:

The formula for calculating Mid - point is given by

M = ([tex]\frac{x_{1}+x_{2}}{2}[/tex] , [tex]\frac{y_{1}+y_{2}}{2}[/tex] )

[tex]x_{1}[/tex] = -5

[tex]x_{2}[/tex] = -7

[tex]y_{1}[/tex] = -9

[tex]y_{2}[/tex] = -4

substituting into the formula , we have

M = [tex]\frac{-5-7}{2}[/tex] , [tex]\frac{-9-4}{2}[/tex]

M = [tex]\frac{-12}{2}[/tex] , [tex]\frac{-13}{2}[/tex]

Therefore : mid point = ( -6 , -6.5 )

Here is the equation:

43.25 = 1.25t + 7 where t is the number of minutes he was on the trampoline.

Answer:

4 11/20

Step-by-step explanation:

The length of road unpaved is 7 3/10 less 2 3/4 miles  The LCD of the fractions is 20 (both 10 and 4 divide evenly into 20).

Thus, the problem becomes 7 6/20 - 2 15/20.

We have to borrow 1 from that 7 because 15/20 is larger than 6/20.  This results in

6 26/20 - 2 15/20, or

4 11/20  

The total length of the main road in Belleville is [tex]7^{(3/10)}[/tex] miles. So far, [tex]2^{3/4}[/tex] miles have been repaved, leaving [tex]7^{(3/10)}[/tex] - [tex]2^{3/4}[/tex] miles that have not been repaved.

1. The total length of the main road is given as [tex]7^{(3/10)}[/tex] miles. In mathematical notation, [tex]7^{(3/10)}[/tex] represents the cube root of 7, which is then raised to the power of 3. So, the total length of the road is the cube root of 7, and then that result is cubed.

2. The length of the repaved portion is given as [tex]2^{3/4}[/tex] miles. In mathematical notation, [tex]2^{3/4}[/tex] represents the fourth root of 2, which is then raised to the power of 3. So, the repaved length is the fourth root of 2, and then that result is cubed.

3. To find the remaining length that has not been repaved, we simply subtract the repaved length from the total length:

  Remaining length = [tex]7^{(3/10)}[/tex] - [tex]2^{3/4}[/tex]

Calculating the values, the total length is approximately 2.262 miles (rounded to three decimal places) and the repaved length is approximately 1.682 miles (rounded to three decimal places). Now, subtracting the repaved length from the total length, we get approximately 0.580 miles (rounded to three decimal places) as the length that has not been repaved.

Therefore, the remaining length that has not been repaved is approximately 0.580 miles (rounded to three decimal places).

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Step-by-step explanation:

The area of a cirkel is calculated with the formula \pi×r^2. Using the 15 inch radius given we get \pi×15^2=706.5 inches squared.

See explanation

Step-by-step explanation:

A situation where a farmer needs to divide his 5 acre land into 1/2 an acre to get 10 pieces of land where he can grow ten different crops.

In such a case; you divide 5 by 1/2

5/ 1/2 = 5*2 =10 pieces

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Answer:can someone help

Step-by-step explanation:

Answer:

(negative infinity, 2)

Step-by-step explanation:

The two functions are given by f(x) = x - 3 and g(x) = - 0.5x

So, (f - g)(x) = x - 3 - ( - 0.5x) = 1.5x - 3

Then, for (f - g)(x) to be negative (1.5x - 3) < 0

⇒ 1.5x < 3

⇒ x < 2

Therefore, the interval will be (negative infinity, 2) for which the function (f - g)(x) will be negative. (Answer)

Answer:

negative infinity 2

Step-by-step explanation:

just did the test

Answer:

After 4 days, the temperature will be 3/4 Fahrenheit degrees lower than today

Step-by-step explanation:

Let's calculate the change in temperature after 4 days, this way:

Today's temperature = t in Fahrenheit degrees

Tomorrow's temperature = t - 3/16 Fahrenheit degrees

The day after tomorrow's temperature = t - 2 * 3/16 = t - 3/8 Fahrenheit degrees

Therefore, the temperature after 4 days will be = t - 4 * - 3/16 = t - 3/4 Fahrenheit degrees

After 4 days, the temperature will be 3/4 Fahrenheit degrees lower than today

Answer: Here dimension of bigger triangle = 10

Dimension of smaller triangle = 5

Scale factor = 10/5 =2

Therefore

Center C and scale factor 2

Answer:

option (2)

Step-by-step explanation:

Given the area (A) of a circle is

A = πr² ← r is the radius ( divide both sides by π )

[tex]\frac{A}{\pi }[/tex] = r² ( take the square root of both sides )

[tex]\sqrt{\frac{A}{\pi } }[/tex] = r → option (2)

Answer:

Infinitely many

Step-by-step explanation:

Answer: [tex]x=-25[/tex]

Step-by-step explanation:

For this exercise it is necessary to remember the multiplication of signs:

[tex](+)(+)+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-[/tex]

Then, having the following equation provided in the exercise:

[tex]4 + \frac{1}{5}x = -1[/tex]

You need to solve for the variable "x" in order to find its value.

To solve the equation, you can follow the steps shown below:

Step 1: You need to subtract 4 from both sides of the equation. Then:

[tex]4 + \frac{1}{5}x-(4) = -1-(4)\\\\ \frac{1}{5}x=-1-4\\\\ \frac{1}{5}x=-5[/tex]

Step 2: This is the final step. You must multiply both sides of the equation by 5 in order to find the value of the variable "x".

Then, you get the following result:

[tex](5)( \frac{1}{5}x)=(-5)(5)\\\\x=-25[/tex]

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

Work Shown:

C = 44 is the circumference

in general, the circumference of a circle is

C = 2*pi*r

Plug in C = 44 and solve for r.

C = 2*pi*r

44 = 2*pi*r

2*pi*r = 44

r = 44/(2pi)

r = 7.0028175 which is approximate

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

Now plug this into the formula for the area of a circle

A = pi*r^2

A = pi*(7.0028175)^2

A = 154.061985

A = 154 rounding to the nearest whole number

Answer:

B

Step-by-step explanation:

Circumference = 2πr

And circumference = 44 m

44 = 2πr

so, r = 44/2π

r = 22/π

Radius is 22/π

Area of circle = πr²

Area of circle = π × (22/π)²

Area of circle = π × 22²/π²

Area of circle = 22²/π

Area of circle = 484/π

Area of circle = 154.14m²

Answer:

7. [tex]\frac{1}{2}+\frac{1}{3}>\frac{1}{5}[/tex]

8. [tex]0.1+0.15>0.2[/tex]

Step-by-step explanation:

Given:

Three sides of the triangles are given.

For Question 7

1/2 _ 1/3 _1/5

For Question 8

0.1 _ 0.15 _ 0.2

We need to use >, <, and + signs to write inequalities for the relationships among  the sides of the triangles.

Solution:

Part 7.

Property of the triangles.

Sum of two side of triangles must be greater than third side.

So, first, second and third side of the triangle is [tex]\frac{1}{2}, \frac{1}{3}\ and\ \frac{1}{5}[/tex]

[tex]\frac{1}{2}+\frac{1}{3}>\frac{1}{5}[/tex]

[tex]\frac{5}{6}>\frac{1}{5}[/tex]

So, its satisfy the triangle rule.

Therefore, Inequality is [tex]\frac{1}{2}+\frac{1}{3}>\frac{1}{5}[/tex]

Part 8.

Property of the triangles.

Sum of two side of triangles must be greater than third side.

So, first, second and third side of the triangle is [tex]0.1, 0.15\ and\ 0.2[/tex]

[tex]0.1+0.15>0.2[/tex]

[tex]0.25>0.2[/tex]

So, its satisfy the triangle rule.

Therefore, Inequality is [tex]0.1+0.15>0.2[/tex]

Use inequalities to compare sides of triangles with >, <, and + signs.

For 7:

1/2 > 1/3

1/3 > 1/5

1/2 + 1/3 > 1/3 + 1/5

For 8:

0.1 < 0.15

0.15 < 0.2

0.1 + 0.15 < 0.15 + 0.2

Answer:

The square root of 49 is 7. 7*7=49

Hope this helps,

:)

In a day, there are 24 hours. Then the number of hours in d days and 6 hours is 24d + 6.

Algebra is the study of mathematical symbols and the rule involves manipulating these mathematical symbols.

The number of hours in d days and 6 hours. Then the algebraic expression will be

We know that in a day, there are 24 hours.

Let the number of the days be d. Then the algebraic expression will be

→ 24 d + 6

Then the number of hours in d days and 6 hours is 24d + 6.

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Answer:

y = 5/2 , x= 7/2

Step-by-step explanation:

5x - 3y = 10…....(1)

3x + 3y = 3......(2)

solving by elimination, we subtract equation (2) from equation (1)

so, 2x = 7

dividing both sides by 2

x= 7/2

substitute x=7/2 for the value of y in equation (1)

5(7/2) - 3y = 10

multiply both sides by 2

35 - 6y = 20

rearranging

-6y = -15

dividing both sides by -6

y = 5/2

Answer:

it will always be 1

Step-by-step explanation:

lets make an equation

pick a number : x

add 2 : x+2

multiply by 3 : (x+2)*3

subtract 3 : (x+2)*3-3

divide by 3 : ((x+2)*3-3)/3

if you simplify, you will get 1

step by step simplification

(x+2)*3 = 3x+6

3x+6-3=3x+3

(3x+3)/3 = x+1

x+1-x=1

Final answer:

The algebraic equation for the given math trick is: (((((x + 2) * 3) - 3) / 3) - x).

Explanation:

To represent the math trick you described algebraically, we can use the variable x to represent the initial number you pick. Following the steps you provided, the algebraic equation would be: ((((x + 2) * 3) - 3) / 3) - x. Let's break down each step:

Answer:

He will earn $81 in 12 hours.

Step-by-step explanation:

Given:

Teo earns 47.25$ in 7 hours of work at Beck’s Burgers.

Now, to find the money he will earn in 12 hours.

As, given Teo earns 47.25$ in 7 hours of work.

So, to get the money he will earn in 12 hours we solve by using unitary method:

If Teo earns in 7 hours $47.25.

Then, in 1 hour he earns = [tex]\frac{47.25}{7}[/tex]

Thus, in 12 hours he will earn = [tex]\frac{47.25}{7} \times 12[/tex]

                                                 = [tex]6.75\times 12[/tex]

                                                 =  [tex]\$81.[/tex]

Therefore, he will earn $81 in 12 hours.  

A large box of fruit weighs 18.25 kilograms and a small box weighs 15.5 kilograms.

Step-by-step explanation:

Let,

Weight of large box = x

Weight of small box = y

According to given statement;

4x+8y=197      Eqn 1

2x+3y=83       Eqn 2

Multiplying Eqn 2 by 2

[tex]2(2x+3y=83)\\4x+6y=166\ \ \ Eqn\ 3[/tex]

Subtracting Eqn 3 from Eqn 1

[tex](4x+8y)-(4x+6y)=197-166\\4x+8y-4x-6y=31\\2y=31[/tex]

Dividing both sides by 2

[tex]\frac{2y}{2}=\frac{31}{2}\\y=15.5[/tex]

Putting y=15.5 in Eqn 2

[tex]2x+3(15.5)=83\\2x+46.5=83 \\2x=83-46.5\\2x=36.5[/tex]

Dividing both sides by 2

[tex]\frac{2x}{2}=\frac{36.5}{2}\\x=18.25[/tex]

A large box of fruit weighs 18.25 kilograms and a small box weighs 15.5 kilograms.

Keywords: linear equation, elimination method

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Answer:

12.6

Step-by-step explanation:

plug in 5 for b

5*5 = 25

25-12.4=12.6

Answer:

B= -2.48

Step-by-step explanation:

Divide 5 and -12.4 both by 5 then B=-2.48