please help me out
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Answer:

-2n + 6

Step-by-step explanation:

To combine this expression, we simply put the like terms, the coefficient with the same variables, and constants together.

5n + 6 + (-7n)

So we can reorganize this:

(5n + -7n) + 6

==> (-2n) + 6

==> -2n + 6

So that is the equivalent expression with the combination of like terms.

Cheers.

Answer:

-2n +6

Step-by-step explanation:

The expression we are given is:

5n + 6 + (-7n)

We want to combine like terms. First, let's analyze each term.

5n ⇒ has a variable, "n"

5 ⇒ does not have a variable

-7n ⇒ also has a variable, "n"

The like terms in this case are 5n and -7n, since they both include a variable. Let's combine the like terms.

5n + 6 + (-7n)

(5n - 7n) +6

Subtract 7n from 5n.

(5-7) *n +6

(-2)*n +6

(-2n)+6

-2n + 6

There are no more like terms, so this is simplified as much as possible.

The expression 5n+6+(-7n) after combining the like terms is -2n+6.

Answer:

a=8

Step-by-step explanation:

-280=-7(6a-8)

Distribute

-280=-7*6a-7+-8

-280=-42a+56

Subtract 56 from both sides

-336=-42a

Divide both sides by -42.

a=8

Answer:

Step-by-step explanation:

s^2 represents the area of a square whose side length is s.

(8x)^2 represents the area of a square whose side length is 8x.

Answer:

He will have 334 Euros

Step-by-step explanation:

Hello.

Here is a currency conversion problem.

The man in this question seeks to convert his Canadian dollars to Euro as he is in France for a trip.

The exchange rate is given as;

1.28 canadian dollar = 1 euro

He has 427 CAD , and we want to know the amount in euro.

let the equivalent amount in Euro be x

Thus;

if

1.28 CAD = 1 EUR

427 CAD = X EUR

By cross multiplying, we have

1.28 * x = 427 * 1

x = 427/1.28

x = 333.59 Euros which is approximately 334 Euros

Answer:

y = 8x - 6

Step-by-step explanation:

find the common difference (+ or -) / ratio (x or ÷)

34 - 26 = 8

42 - 34 = 8

50 - 42 = 8

58 - 50 = 8

the common difference is 8

y = 8x + b

plug in an (x, y) value to find b

(7, 500

50 = 8(7) + b

50 = 56 + b

b = -6

y = 8x - 6

Answer:

500

Step-by-step explanation:

Parameter= whole population

Sample statistic= outcome of part of population surveyed

Answer:

Step-by-step explanation A  construction crew is lengthening a road. Let  L  be the total length of the road (in miles). Let  D  be the number of days the crew has worked. Suppose that  =L+4D200   gives  L  as a function of  D . The crew can work for at most  70  days.   =L+4D200 is not clear, not an equation.on:

Answer:

height = 2m at t = 0s

height = 22.1m at t = 1s

height = 32.4m at t = 2s

height = 32.9m at t = 3s

height = 23.6m at t = 4s

height = 4.5m at t = 5s

Step-by-step explanation:

Given equation:

H(t) = -4.9t² + 25t + 2           ----------------(i)

The height of the ball is a function of time. Therefore;

(i) At the 0th second. i.e t = 0, we get the height by substituting the value of t = 0 into equation (i). i.e

H(0) = -4.9(0)² + 25(0) + 2

H(0) = 2

∴ At t = 0, the height is 2 meters. This is also obvious in the first statement of the question.

(ii) 1st second. i.e t = 1, we get the height by substituting the value of t = 1 into equation (i). i.e

H(1) = -4.9(1)² + 25(1) + 2

H(1) = 22.1

∴ At t = 1, the height is 22.1 meters.

(iii) 2nd second. i.e t = 2, we get the height by substituting the value of t = 2 into equation (i). i.e

H(2) = -4.9(2)² + 25(2) + 2

H(2) = 32.4

∴ At t = 2, the height is 32.4 meters.

(iv) 3rd second. i.e t = 3, we get the height by substituting the value of t = 3 into equation (i). i.e

H(3) = -4.9(3)² + 25(3) + 2

H(3) = 32.9

∴ At t = 3, the height is 32.9 meters.

(v) 4th second. i.e t = 4, we get the height by substituting the value of t = 4 into equation (i). i.e

H(4) = -4.9(4)² + 25(4) + 2

H(4) = 23.6

∴ At t = 4, the height is 23.6 meters.

(vi) 5th second. i.e t = 5, we get the height by substituting the value of t = 5 into equation (i). i.e

H(5) = -4.9(5)² + 25(5) + 2

H(5) = 4.5

∴ At t = 5, the height is 4.5 meters.

Answer:

the answer is (0,2) ball thrown from an initial height of two feet Jeremys change jar that started with a 2$ deposit

Step-by-step explanation:

Answer:

24%

Step-by-step explanation:

1) 25-19=6

2) 6/25 x 100 = 24%

Answer:

m+13/-2 = n (m plus 13, divided by negative 2 equals n)

Step-by-step explanation:

m+1 = -2(n+6)

distribute -2

m+1 = -2n-12

add 12 to both sides

m+1 = -2n-12

+12 +12

with that you get

m+13 = -2n

next you divide -2 from both sides

m+13

-------- = n

-2

Answer:

[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

The multiplicative inverse of 4 is 1/4.

Answer:

1/4

Step-by-step explanation:

Multiplicative inverse is another meaning for reciprocal. The reciprocal of 4 is 1/4

Answer:

1,3,3,2

Step-by-step explanation:

hope this helps :)

The required solutions are,

1. operations.
2. w(xy)z.
3. w(xy)z

The associative property is a mathematical principle that states that the grouping of operations or factors does not affect the final result of a calculation, as long as the order of the terms remains the same.

Here,
The associative property allows us to change the grouping of the factors that are multiplied together to create 2. operations.

When changing the grouping, the order of the factors stays the same; only the position changes.

The expression 3. (wx)yz is an equivalent expression to w(xy)z.

The expression 2. wx(yz) is also an equivalent expression to w(xy)z.

Learn more about associatve proerty here:

https://brainly.com/question/30111262

#SPJ3

Step-by-step explanation:

According to the question:

(x+4) : = 3:4

or, (x+4) / (3x+1) = 3 / 4

or, (x+4) * 4 = (3x+1) * 3

or, 4x + 16 = 9x + 3

or, 16 - 3 = 9x - 4x

or, 13 = 5x

or, 13/5 = x

•

• • x = 2.6

Answer:

x = [tex]\frac{13}{5}[/tex]

Step-by-step explanation:

Express the ratios as equivalent fractions, that is

[tex]\frac{x+4}{3x+1}[/tex] = [tex]\frac{3}{4}[/tex] ( cross- multiply )

3(3x + 1) = 4(x + 4) ← distribute parenthesis on both sides

9x + 3 = 4x + 16 ( subtract 4x from both sides )

5x + 3 = 16 ( subtract 3 from both sides )

5x = 13 ( divide both sides by 5 )

x = [tex]\frac{13}{5}[/tex]

Answer:

12,500= £25

Step-by-step explanation:

Because every 1000 it makes £2 from ad venue, we must: (we can do two methods)

1.Divide £25 by £2 then multiply it by 1000. By doing this, we will know how many times 1000 are made when there is £25.

1000= £2

? = £25

So:

£25 ÷ £2= 12.5

12.5 × 1000= 12,500

2. Find how much it made for £1 by dividing 1000 by £2, then multiplying it by £25.

So:

1000 ÷ £2= 500

500 × £25= 12,500

I hope this helps! I'm sorry if it's wrong and too complicated.

Answer:

2, -2

Step-by-step explanation:

f(x) = 2x + 1

g(x) = x - 3

To find g(f(x)), you need to put f(x) into g(x).

g(f(x)) = (2x + 1) - 3

g(f(x)) = 2x + 1 - 3

g(f(x)) = 2x - 2

Your answer will be 2 and -2.

Answer:

[tex]26x^2+22x+25[/tex]

Step-by-step explanation:

We remove the brackets, getting [tex]19x^2+12x+12+7x^2+10x+13[/tex].

We then combine like terms, getting [tex](19+7)x^2+(12+10)x+(12+13)[/tex].

As a result, we get [tex]26x^2+22x+25[/tex].

Answer:

Step-by-step explanation:

[tex] \sf{(19 {x}^{2} + 12x + 12) + ( {7x}^{2} + 10x + 13)}[/tex]

Remove the unnecessary Parentheses

⇒[tex] \sf{19 {x}^{2} + 12x + 12 + (7 {x}^{2} + 10x + 13)}[/tex]

When there is a ( + ) in front of an expression in parentheses , the expression remains the same

⇒[tex] \sf{19 {x}^{2} + 12x + 12 + 7 {x}^{2} + 10x + 13} [/tex]

Collect like terms

⇒[tex] \sf{26 {x}^{2} + 22x + 12 + 13}[/tex]

Add the numbers

⇒[tex] \sf{26 {x}^{2} + 22x + 25}[/tex]

Hope I helped!

Best regards!

Answer:

[tex]slope = m = 2[/tex]

Answer:

2

Step-by-step explanation:

The slope intercept form is

y = mx+b where m is the slope

Solve for y

12x - 6y = 30

Subtract 12x from each side

-6y =-12x+30

Divide by -6

y = -12x/-6 +30/-6

y = 2x -5

The slope is 2

Answer:

n

Step-by-step explanation:

4n-3n=1n

1n=n

Answer:

3

Step-by-step explanation:

so if he buys 2 packs of soda and three packs of cupcakes they will be even

cause it's gonna be 12-12

Answer:

-1

Step-by-step explanation:

sub in the values of x, y and z into the equation

you get:

(-3)(-4)/(-2)(6)

= 12/-12

= -1

Answer: -1

Step-by-step explanation:

xz/-2y, given x=-3, y=6, and z=-4

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

 xz/-2y

=(-3)(-4)/-2(6) ⇔ substitute x y and z value

=12/-12 ⇔ calculate it

=-1 ⇔ simplify fraction

Hope this helps!! :)

Please let me know if you have any question

Answer:

Greatest prime factor of [tex]nt[/tex] is 7.

Step-by-step explanation:

Given that

Two positive integers are [tex]n[/tex] and [tex]t[/tex].

(1) Greatest Common Factor or HCF of [tex]n[/tex] and [tex]t[/tex] is 5.

(2) Least Common Multiple or LCM of [tex]n[/tex] and [tex]t[/tex] is 105.

To find:

The greatest prime factor of the product [tex]nt[/tex] = ?

Solution:

First of all, let us learn about a property of HCF and LCM of two numbers.

The product of two numbers [tex]p[/tex] and [tex]q[/tex] is equal to the product of their HCF and LCM.

[tex]p \times q =LCM\times HCF[/tex]

Using this property for the given numbers:

[tex]n\times t =5\times 105\\OR\\nt =5\times105[/tex]

Now, let us make prime factors of [tex]5 \times 105[/tex] to find the greatest of the prime factors.

[tex]5\times 105 = 5\times 5 \times 21 =5\times 5 \times 3 \times \bold{7}[/tex]

So, the prime factors of [tex]5 \times 105[/tex] are 5, 5, 3 and 7.

Greatest prime factor of [tex]nt[/tex] is 7.

Answer:

[tex]n=-4[/tex]

Step-by-step explanation:

So we have the equation:

[tex]2+4(2-3n)=58[/tex]

First, distribute the second term:

[tex]2+4(2)-4(3n)=58\\2+8-12n=58[/tex]

Add the left side:

[tex]10-12n=58[/tex]

Subtract both sides by 10. The left side cancels:

[tex](10-12n)-10=(58)-10\\-12n=48[/tex]

Divide both sides by -12. The left side cancels:

[tex](-12n)/-12=(48)/-12\\n=-4[/tex]

Therefore, the value of n is -4.

⇒2 + 4(2 - 3n) = 58

⇒4(2 - 3n) = 58 - 2

⇒2*4 - 3n*4 = 56

⇒8 - 12n = 56

⇒-12n = 56 - 8

⇒-12n = 48

⇒-n = 48/12

⇒-n = 4

⇒n = - 4

Hence, value of n is - 4

Answer: 6

Step-by-step explanation:

The factors of 6 are 1, 2, and 3.

1 + 2 + 3 = 6

Answer:

x => y

-6 => 9

3 => 5

15 => -3

-12 => 15

Step-by-step explanation:

Given the domain function, {-12, -6, 3, 15}, and the equation of the function, [tex] y = -\frac{2}{3}x + 7 [/tex], we can complete the given table by simply plugging in the value of either x to find y, or y to find x in the table given. The domain values are all x-values you have in the table.

Find y when x = -6:

[tex] y = -\frac{2}{3}(-6) + 7 [/tex]

[tex] y = -\frac{2}{1}(-2) + 7 [/tex]

[tex] y = 2 + 7 [/tex]

[tex] y = 9 [/tex]

Find x when y = 5:

[tex] 5 = -\frac{2}{3}x + 7 [/tex]

[tex] 5 - 7 = -\frac{2}{3}x + 7 - 7 [/tex]

[tex] -2 = -\frac{2}{3}x [/tex]

[tex] -2 = \frac{-2x}{3} [/tex]

[tex] -2*3 = \frac{-2x}{3}*3 [/tex]

[tex] -6 = -2x [/tex]

[tex] \frac{-6}{-2} = \frac{-2x}{-2} [/tex]

[tex] 3 = x [/tex]

[tex] x = 3 [/tex]

Find y when x = 15:

[tex] y = -\frac{2}{3}(15) + 7 [/tex]

[tex] y = -\frac{2}{1}(5) + 7 [/tex]

[tex] y = -10 + 7 [/tex]

[tex] y = -3 [/tex]

Find x when y = 15:

[tex] 15 = -\frac{2}{3}x + 7 [/tex]

[tex] 15 - 7 = -\frac{2}{3}x + 7 - 7 [/tex]

[tex] 8 = -\frac{2}{3}x [/tex]

[tex] 8 = \frac{-2x}{3} [/tex]

[tex] 8*3 = \frac{-2x}{3}*3 [/tex]

[tex] 24 = -2x [/tex]

[tex] \frac{24}{-2} = \frac{-2x}{-2} [/tex]

[tex] -12 = x [/tex]

[tex] x = -12 [/tex]

Answer:

No

Step-by-step explanation:

Common denominators are the same number. Since 1/4 has a denominator of 4 and 3/12 has a denominator of 12 they are not the same, and therefore are not common denominators.

Answer:

no

Step-by-step explanation:

Answer:

 (x - 8)^2 + y^2 = 3.

Step-by-step explanation:

(x - h)^2 + (y - k)^2 = r^2

Here h = 8, k = 0 and r^2 = (√3)^2 = 3

The answer is  (x - 8)^2 + (y - 0)^2 = 3

or (x - 8)^2 + y^2 = 3.

Answer:

area = 385 cm²

Step-by-step explanation:

area = 5cm * 77cm

area = 385 cm²

Answer: The inverse relation is { (-1, -8), (-1, -8), (-8, -2), (8, 2) }

The inverse is effectively the opposite of the original relation. It undoes what the original relation does. So we'll swap the x and y values for each given point in the form (x,y). Something like (8,-1) becomes (-1,8). The other points follow the same pattern as well.

Answer:

a= x, b= 4

Step-by-step explanation:

Comparing polynomials:

Applying same formula:

Answer:

54kg

Step-by-step explanation:

Body weight = B

Tail weight = T

Head weight = H

Total weight = F

Use equation = B + T + H = F

We are told that T = 9kg, H = T + (1/3) x B, B = H + T

We have 3 equations and 3 unknowns, solve the system of equations to find W.  

B = H + 9

H = 9 + 1/3 x (H+9)=9+H/3+3 --> 2/3 x H = 12  --> H = 18

B = 18 + 9 = 27

F = 18 + 27 + 9 = 54kg