Which of the following expressions is equal to 2x^2+8

Answer:

10%

Step-by-step explanation:

He had to payback 40 more than he borrowed.

440-400=40

40 is 10% of 400, what he borrowed.

400÷10=40

Answer:

10%

Step-by-step explanation:

That year, he paid $40 in interest, which is 10% of the original loan.

Answer:

B

Step-by-step explanation:

(6[tex]x^{5}[/tex]z)^3

6^3 is 226

*(x^2)^3=  x^6        (5*3= 15)

*when there are exponents being raised to a power, the exponents are multiplied

**(z^1)^3= z^3     (3*1= 3)

** all numbers are raised to the 1st power (unless otherwise noted x^2, 5^4 2^2, etc)

So the top would end up being 226x^6z^3

Now, since this number is over 4x^4z^2,  you need to divide 226x^15z^3 by 4x^4z^2

**divide like terms**

226/4= 54

***x^15/ x^4= x^x^11

*** when you divide exponents, you subtract the bottom number from the top, in this case:

15-4

that equalls 11

So x^11

you do the same for z:

z^3/z^2= z^1 or z      (3-2=1 )

You put it all together and you end up with

54x^11z

******** If there are any mistakes I'm really sorry!!******

Given:

JK is formed by J(-12, 3) and K(8,-5).

Line r is the perpendicular bisector of JK.

To find:

The equation of line r is slope intercept form.

Solution:

Line r is the perpendicular bisector of JK. So, it passes through the midpoint of J and K.

[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]

[tex]Midpoint=\left(\dfrac{-12+8}{2},\dfrac{3+(-5)}{2}\right)[/tex]

[tex]Midpoint=\left(\dfrac{-4}{2},\dfrac{-2}{2}\right)[/tex]

[tex]Midpoint=\left(-2,-1\right)[/tex]

Slope of JK is

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\dfrac{-5-3}{8-(-12)}[/tex]

[tex]m=\dfrac{-8}{20}[/tex]

[tex]m=\dfrac{-2}{5}[/tex]

Product of slopes of two perpendicular lines is -1.

[tex]m_1\times m_2=-1[/tex]

[tex]-\dfrac{2}{5}\times m_2=-1[/tex]

[tex]m_2=\dfrac{5}{2}[/tex]

The slope of perpendicular line r is [tex]\dfrac{5}{2}[/tex] and it passes through (-2,-1). So, the equation of perpendicular line is

[tex]y-y_1=m(x-x_1)[/tex]

[tex]y-(-1)=\dfrac{5}{2}(x-(-2))[/tex]

[tex]y+1=\dfrac{5}{2}(x+2)[/tex]

[tex]y+1=\dfrac{5}{2}x+5[/tex]

[tex]y=\dfrac{5}{2}x+5-1[/tex]

[tex]y=\dfrac{5}{2}x+4[/tex]

Therefore, the equation of line r is [tex]y=\dfrac{5}{2}x+4[/tex].

The required equation of line "r" in slope-intercept form is y = 5/2x + 15

First, we need to find the equation of a line in slope-intercept form as

y = mx + b

m is the slope of the line

b is the y-intercept

Given the coordinate points  J(-12, 3) and K(8,-5)

Get the slope of the line

Slope  = -5-3/8+12

Slope = -8/20

Slope - -2/5

Slope of the line "r" perpendicular is 5/2

Get the y-intercept of line r

Substitute (8, -5) and m = 5/2 into y = mx + b

-5 = -5/2(8) + b

-5 = -20 + b

b = 15

Hence the required equation of line "r" in slope-intercept form is y = 5/2x + 15

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Answer:

The answer is B.

Step-by-step explanation:

The simplified expression is  7x - 27/9

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division. For example, x + y is an expression, where x and y are terms having an addition operator in between. In math, there are two types of expressions, numerical expressions - that contain only numbers; and algebraic expressions- that contain both numbers and variables.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:

Given:

5(2x - 3) - 3(x + 4) / 9

=10x-15-3x-12/9

=10x-3x-15-12/9

=7x-27/9

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Answer:

To find the perimeter, add together the lengths of the sides. Start at the top and work clockwise around the shape. Area of Polygon = (Area of A) + (Area of B) To find the area, divide the polygon into two separate, simpler regions.

Step-by-step explanation:

Answer:

185mm

Step-by-step explanation:

37 times 5 is 185

Answer:

185 mm

Step-by-step explanation:

There are 5 sides in a pentagon. Each side is 37 mm. Add 37 5 times or multiply 37 by 5.

37mm + 37mm + 37mm + 37mm + 37mm

or

37mm × 5

Answer:

Step-by-step explanation:

Multiply both sides by p to get:

xp = mn

Now divide both sides by n to get:

xp/n = m

Answer:

5

Step-by-step explanation:

600-775=125

25x5=125

Answer:7 team members

Step-by-step explanation:think of money... 25 cents times 4 is a dollar. So that means count from 600 by 25 until you get to 775

Answer:

y = 6

Step-by-step explanation:

Step 1: Write equation

3(y - 5) + 2 = 5

Step 2: Solve for y

Step 3: Check

Plug in y to verify it's a solution.

3(6 - 5) + 2 = 5

3(1) + 2 = 5

3 + 2 = 5

5 = 5

Answer:

x = -1.52016

Step-by-step explanation:

Step 1: Write equation

3(2x - 7) = 5(x + 3) + 2x⁷

Step 2: Solve for x

Answer:

142°

Step-by-step explanation:

Lines L and M are parallel and a line is transversal to them.

[tex]\therefore 38 \degree + m \angle7 = 180 \degree \\ (straight \: line \: \angle s) \\ \\ \therefore m \angle7 = 180 \degree - 38 \degree \\ \\ \huge \red { \boxed{\therefore m \angle7 = 142 \degree }}[/tex]

Answer: For I the answer is m=55, for J the answer is x=24

Step-by-step explanation:

I. Remote interior angles add up to exterior which means 30+80=2m which is 110=2m. Divide 110 by 2 gives you m=55

J. Same concept but this time it is 5x=120, divide 120 by 5 gives you 24.

Answer: 8/9 is rational

.2593 irrational

square root of 7: irrational

square root of .25 is rational

square root of 14: irrational

0 is a: rational

square root of 280: irrational

square root of 35: is irrational

.2222: is rational

square root of 3r is a rational number......

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

Let f = number of friends

all but one friend got 6 pieces   and 1 friend got 2  for a total of 50 pieces

6(f-1) + 2 = 50

Subtract 2 from each side

6(f-1) +2-2 = 50-2

6(f-1) = 48

Divide by 6

6(f-1)/6 = 48/6

f-1 = 8

Add 1 to each side

f-1+1=8+1

f=9

Jack has 9 friends at the party

With Jack and his mom, there are 11 people

Answer:

The answer is y = (x + 4)(x + 1)(2 – x)(3 – x)

Step-by-step explanation:

yw

Answer:

The options as included in the attachment section are:

A. real numbers B.Cardinality C.element D.Set

The answer is D. Set

Step-by-step explanation:

In mathematics, a set is a group of well-defined objects that share common characteristics as rightly stated in this question. So in a mathematical calculation, the elements or objects collected as a group is called SET. The types of set include empty set, finite set, infinite set, universal set etc.

- Since set represents the whole collection or group, each object, which can be number, letter etc. in the group is an ELEMENT. Likewise, the cardinality of a set refers to the number of elements contained in a particular set.

Answer:

I think it is 17[tex]\sqrt{13\\\\[/tex]

Step-by-step explanation:

Answer:

17 root 13

Step-by-step explanation:

Answer:

the answer is 2x^2 − x − 2

Answer:

168

Step-by-step explanation

Answer

191

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

An "additive inverse" refers to a number that when added to a specific number equals to "zero."

In the question above, the additive inverse of -7 is 7 because: -7 + 7 = 0

Other examples:

1. The additive inverse of 2 is -2 because: 2 + (-2) = 0

2. The additive inverse of -100 is 100 because: -100 + 100 = 0

3. The additive inverse of [tex]\frac{1}{2}[/tex] is -[tex]\frac{1}{2}[/tex] because: [tex]\frac{1}{2}[/tex] + -[tex]\frac{1}{2}[/tex] = 0

The additive inverse of -7 is equal to 7.

The additive inverse of a number is the number that, when added to the original number, gives a sum of zero.

To determine the additive inverse of -7, we need to find the number that, when added to -7, results in zero.

To do this, we can multiply -7 by -1, which is the multiplicative inverse of 1. Multiplying a number by its multiplicative inverse always gives the additive inverse of that number.

So, -7 multiplied by -1 is:

-7 x -1 = 7

Therefore, the additive inverse of -7 is 7.

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Answer:

ohh this is little bit hard

Step-by-step explanation:

The Answer is : 20/40

Answer:

C: Starting at 1103 you gain 91 feet each additional hour of climing.

Step-by-step explanation:

Answer:

7 units

Step-by-step explanation:

Answer:

7-9 you need to plug numbers into the formula y= mx+b where you plug the plots in M and B.

Step-by-step explanation:

I don't have a graph to plot 1-3 on but all you need to do is plot them and answer if they are parallel, perpendicular, or neither. (The property extends to other related geometric objects. A line is said to be perpendicular to another line if the two lines intersect at a right angle.) (In math, parallel means two lines that never intersect — think of an equal sign.) And if they don't fit either then its NEITHER

Answer:9 cups of red paint

Step-by-step explanation:1 batch = 3 cups of paint and you need to find the number of cups of paint for 3 batches so you multiply 3 x 3 and get 9. Hope this helped!!!:)

Answer: 4

Step-by-step explanation: you add 5 and 3, then you divide by the number of numbers which is 2.

Answer:

Average =  

Sum

Count

=  

8

2

=  

4

Step-by-step explanation:

Sum 8

Count 2

Median 4

Geometric Mean 3.8729833462074

Largest 5

Smallest 3

Range 2

Answer:

-18 mat-way is good to use

Answer:c

Step-by-step explanation:

Answer:

I think its -2/3

Step-by-step explanation: