Need help ASAP!!!!!!

[tex]\boxed{\sf S_n=3^n-1}[/tex]

Now

[tex]\\ \sf\longmapsto S_8=3^8-1[/tex]

[tex]\\ \sf\longmapsto S_8=6561-1[/tex]

[tex]\\ \sf\longmapsto S_8=6560[/tex]

Answer:

D. 150

Step-by-step explanation:

A=6a^2=6·5^2=150

Answer:

(2,-4)

Step-by-step explanation:

Answer:

11000 JY.

Step-by-step explanation:

According to today's exchange rate

1 US dollar = 110 JY

100 US dollars = 100 * 110 JY

You should get 11000 JY.

Pick the answer that is closest to this exchange rate.

Answer:

Gym B and Gym A charge the same hourly rate for childcare.

Answer:

(- ∞ , 3) u (7 , ∞ )

Step-by-step explanation:

f(x) is negative below the x- axis

This is int the intervals x < 3 , x > 7

domain is (- ∞ , 3 ) u (7, ∞ )

Answer:

The average rte of change = 6

2) The average rate of change over an interval is the ratio of the total change in the determinate variable or function (values of the output of the function) to the change in the indeterminate variable (values of the input of the function)

Step-by-step explanation:

1) The average of change of the function is found as follows;

At x = 0.75, y = -0.5, at x = 1.125, y = 1.75

Therefore, the average rate of change = (1.75 - (-0.5))/(1.125 - 0.75) = 6

2) The average rate of change over an interval on a graph or of a curve is found by dividing the difference between the y-coordinate values of the two points on the graph by the difference of the x-coordinate values of the two points.

Step-by-step explanation:

Answer:

[tex]let \: the \: unknown \: = x \\ then \: \frac{x}{10} = 50 \\ x = 50 \times 10 \\ x = 500 \\ thank \: you[/tex]

oops wrong question sorry

Answer:

576 mm²

Step-by-step explanation:

In a square all sides are equal, so area of square = s * s = s²

Area = 24 * 24

Area = 576 mm²

Answer:

m = 3(-n+2) / 5

Step-by-step explanation:

10m + 6n = 12

       -6n     -6n

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

10m = 12 - 6n

/10           /10

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

m = 3(-n+2) / 5

Answer:

985

Step-by-step explanation:

they are asking what her balance was after her first deposit (A) so you only adding 65.00 to the original 920.00

Answer:

I am not to sure but i think a.

Step-by-step explanation:

Answer: Part A: a square pyramid Part B: 84 square feet

Step-by-step explanation:

Part A: The shape will have a base that is a square with triangles on each of its edges that connect at a point at the top.

Part B: The amount of nylon needed is the surface area of the net. There is a square and two triangles. The square has a side length of 6 so its area will be 6*6=36 square feet. Each triangle has a base of 6 and a height of 4 so each of their areas will be [tex]\frac{6*4}{2}=12[/tex] square feet. Adding up the area of the 4 triangles and the square gives us 4*12+36=84 square feet.

Answer:

length is 20 meters

width is 12 meters

Step-by-step explanation:

x = length

y = width

x = 2y - 4

x×y = 240

using the first equation as substitute in the second equation we get

(2y - 4)×y = 240

2y² - 4y - 240 = 0

the solution to such a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

here we are going for y instead of x, but it is the same principle.

a = 2

b = -4

c = -240

y = (4 ± sqrt(16 - 4×2×-240))/4 = (4 ± sqrt(16 + 1920))/4 =

= (4 ± sqrt(1936))/4 = (4 ± 44)/4 = (1 ± 11)

y1 = 1 + 11 = 12

y2 = 1 - 11 = -10

negative side lengths don't make any sense, so, y = 12 meters remains.

x = 2y - 4 = 2×12 - 4 = 24 - 4 = 20 meters

Answer:

see explanation

Step-by-step explanation:

Substitute the given values of x into f : x → [tex]\frac{3}{7}[/tex] x + 4

x = - 14 → ([tex]\frac{3}{7}[/tex] × - 14) + 4 = (3 × - 2) + 4 = - 6 + 4 = - 2

x = 28 → ( [tex]\frac{3}{7}[/tex] × 28) + 4 = (3 × 4) + 4 = 12 + 4 = 16

x = [tex]\frac{7}{8}[/tex] → ([tex]\frac{3}{7}[/tex] × [tex]\frac{7}{8}[/tex] ) + 4 = [tex]\frac{3}{8}[/tex] + 4 = [tex]\frac{3}{8}[/tex] + [tex]\frac{32}{8}[/tex] = [tex]\frac{35}{8}[/tex]

x = - [tex]\frac{2}{9}[/tex] → ([tex]\frac{3}{7}[/tex] × - [tex]\frac{2}{9}[/tex] ) + 4 = ([tex]\frac{1}{7}[/tex] × - [tex]\frac{2}{3}[/tex]) + 4 = - [tex]\frac{2}{21}[/tex] + [tex]\frac{84}{21}[/tex] = [tex]\frac{82}{21}[/tex]

Answer:

See below in bold.

Step-by-step explanation:

1. 3/7 * -14 + 4

   = -6 + 4

    = -2.

2. 3/7 * 28 + 4

   = 12 + 4

    = 16.

3 3/7 * 7/8 + 4

   =  3/8 + 4

    =   35/8 or 4 3/8.

4. 3/7 * -2/9 + 4

   = -6/63 + 4

   = -2/21 + 4

    = -82/21 or -3 19/21.

Answer:

2nd option

Step-by-step explanation:

Given

2x - 8y + 3x² + 7y - 12x ← collect like terms

= 3x² + (2x - 12x) + (- 8y + 7y)

= 3x² + (- 10x) + (- y)

= 3x² - 10x - y

Step-by-step explanation:

Bailey has 27 oz

stacie has 36 oz

tamara has 36 oz

tamara and stacie have the most water in their bottles

Answer: a random group of 30 people at a mall

Step-by-step explanation:

Got it from edgenuiy

Answer:

That's a variable expression?

I think is 8/x³

Answer:

p(4p - 9) =12 ⇒ 4p² - 9p = 12 ⇒ 4p² - 9p - 12 = 0

p(4p - 9) - 12 ⇒ 4p² - 9p - 12

Step-by-step explanation:

Since, it's one term has power 2 ,so it is quadratic

Since, it's one term has power 2, so it is quadratic

Answer:

There are 2 integers, which absolute value are 3. -3 and 3 itself

Step-by-step explanation:

|-3| = 3 and |3| = 3 to

Answer:

2 integers at a time will be able to have the same absolute value. This is because integer can be both positive and negative, while absolute value always remains positive:

The absolute value of both 2 and (-2) is 2.

Answer:

A=2

B=-3

C=-5

Step-by-step explanation:

The highiest coefficient in degree of the polynomial is 2 on the left and 1*A*1,

A=2

Let's make the synthetical division:

[tex]\boxed{A=2}\\\begin{array}{c|c|c|c|c|c}&x^4&x^3&x^2&x&1\\---&---&---&---&---&---\\&2&-13&19&5&1\\x=4&&8&-20&-4&4\\&2&-5&-1&1&-5\Longrightarrow \boxed{C=-5}\\x=-\frac{1}{2}&-1&3&-1&\\2&-6&2&&\\---&---&---&---&---&---\\\end {array}\\\\\\\boxed{2x^4-13x^3+19x^2+5x+1=(x-4)(2x+1)(x^2-3x+1)-5}\\\\\\\boxed{B=-3}\\[/tex]

Answer:

34567 shhzhznznjshshznuzhs

Step-by-step explanation:

the rule 2x×300p

Answer:

x = 12 or x = -6

Step-by-step explanation:

Solve for x over the integers:

abs(x - 3) = 9

Split the equation into two possible cases:

x - 3 = 9 or x - 3 = -9

Add 3 to both sides:

x = 12 or x - 3 = -9

Add 3 to both sides:

Answer: x = 12 or x = -6

Answer:

Step-by-step explanation:

A=1,B=3,C=4

X= 4/(3-1)

X= 4/2

X=2