In a geometric sequence, the first term is 3 and the common ratio is 2. What is the sum of the first 9 terms?
a .99
b. 1022
c. 1533
d. 765

Answer:

C

Hope that helps!

Step-by-step explanation:

Answer:

[tex] - 2x + 5y = 20 \\ 5y = 2x + 20 \\ y = \frac{2}{5} x + 4 \\ slope = \frac{2}{5} \\ y - intercept = 4[/tex]

Answer:

The answer is "10 and 40".

Step-by-step explanation:

[tex]\to f + 5 = 3(s + 5) = 3s + 15\\\\\to f - 5 = 7(s - 5) = 7s - 35\\\\[/tex]

Subtracting the equations to get

[tex]\to 10 = -4s + 50\\\\\to -40 = -4s\\\\\to s = \frac{40}{4} \\\\\to s=10\\\\\to f = 40\\\\[/tex]

So the Son age is 10, and the father's age is 40.

Answer: square root(265)

Step-by-step explanation:

Again, you can solve this via the Pythagorean theorem(a^2+b^2=c^2)

a= a side

b= another side

c= hypotenuse

Now, Substitute

12^2+11^2=x^2

144+121= 265

Now, square root  and you get

square root(265)

Answer:

y = -1/6x + 2

Step-by-step explanation:

y = -1/6x + b

3 = -1/6(-6) + b

3 = 1 + b

b = 2

Answer:

Step-by-step explanation:

Answer: B

Step-by-step explanation: Hope this help :D

Answer:

c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

Please help and NO LINKS

Please help and NO LINKSTo conduct a survey about the type of phone service most people in Greenville prefer, 10 different blocks in the neighborhood are chosen. On these 10 blocks, 10 houses are selected at random, and then one resident of each of those houses is interviewed. This type of sampling method is(A)

Step-by-step explanation:

(I hope this helps)(BRAINLEIST PLEASE)❤☺️☻♨️

Answer:

A and E

Step-by-step explanation:

at the end of the 10 weeks, annie's dads plan gives her 511 dollars, which is more than her mothers. it is a geometric sequence.

x≥−7. hope this helps you good luck

Given:

The given function is:

[tex]f(x)=11x-11[/tex]

To find:

The value of [tex](f\circ f^{-1})(-11)[/tex].

Solution:

We have,

[tex]f(x)=11x-11[/tex]

First we have to find the inverse of this function.

Putting f(x)=y, we get

[tex]y=11x-11[/tex]

Interchange x and y.

[tex]x=11y-11[/tex]

Isolate the variable y.

[tex]x+11=11y[/tex]

[tex]\dfrac{x+11}{11}=y[/tex]

[tex]y=\dfrac{x+11}{11}[/tex]

Putting [tex]y=f^{-1}(x)[/tex], we get

[tex]f^{-1}(x)=\dfrac{x+11}{11}[/tex]

Now,

[tex](f\circ f^{-1})(-11)=f(f^{-1}(-11))[/tex]

[tex](f\circ f^{-1})(-11)=f\left(\dfrac{-11+11}{11}\right)[/tex]        [tex]\left[\because f^{-1}(x)=\dfrac{x+11}{11}\right][/tex]

[tex](f\circ f^{-1})(-11)=f\left(\dfrac{0}{11}\right)[/tex]

[tex](f\circ f^{-1})(-11)=f\left(0\right)[/tex]

The given function is [tex]f(x)=11x-11[/tex].

[tex](f\circ f^{-1})(-11)=11(0)-11[/tex]

[tex](f\circ f^{-1})(-11)=-11[/tex]

Therefore, the value of [tex](f\circ f^{-1})(-11)[/tex] is [tex]-11[/tex]. Hence the correct option is A.

Answer:

Step-by-step explanation:

d+q ≤  16

She can have 16 or less than 16 coins (dimes and quarters) but no more than 16 coins

Answer:

126

Step-by-step explanation:

Answer:

3/12 + 8/12

11/12

Step-by-step explanation:

Answer:a and b

Step-by-step explanation:

Answer:

B and C

Step-by-step explanation:

Remember: 5 or more-> Rounds up, Less than 5-> Rounds down

A. Incorrect, would round down to 470,000 due to it being 472 in the thousands place

B. Correct, would round up to 480,000 due to it being 476 in the thousands place

C. Correct, would round down to 480,000 due to it being 482 in the thousands place

D. Incorrect, would round up to 490,000 due to it being 485 in the thousands place

E. Incorrect, would round up to 490,000 due to it being 487 in the thousands place

Hope it helped! (:

Answer:

.96/12= .08 cents

Step-by-step explanation:

Use a calculator

Answer:

(just took the test)

Answers for entire quiz on EDGE for "Writing Linear Equations":

C. y = 1/4x+2

A. y=12x+8

C. y=x+2

B. c(x) = 6x + 3

A. k – 2 = 1/9(t – 18)

A. y=-5/8x+6

C. 5

A. y = x + 3

C. 2x + 5y = –15

B. y + 13 = 5(x + 2)

hope this helps y'all!

The correct option is (3) [tex]y = \frac{1}{4} x + 2[/tex]

The equation of a line that passes through points (8, 4) and (0, 2) is .

The equation of the line in Slope-Intercept form is:

                     y = mx + b            ( m - slope)

The equation of the line slope intercept is-

               [tex]y - 4 = \frac{1}{4} ( x -8)\\y - 4 = \frac{1}{4} x - \frac{8}{4} \\y - 4 = \frac{1}{4} x - 2\\y = \frac{1}{4} - 2 + 4\\y = \frac{1}{4} x + 2\\[/tex]...................(1)

Now compare equation 1 from y = mx + b

   So,        m = 1/4       &  b = 2

Therefore, The correct option is (3) [tex]y = \frac{1}{4} x + 2[/tex] .

Learn more about slope brainly.com/question/12109165

#SPJ2

Answer:

253,276,311,363    293.5 is the mdien.

Step-by-step explanation:

Answer:

293.5

Step-by-step explanation:

Least to greatest: 253, 276, 311, 363

Median = middle

If there are two middle numbers find the mean of the two numbers.

276 + 311 = 587

587/2 = 293.5

Hope this helps!! Have a great day and remember, you are loved.

Answer:

C

Step-by-step explanation:

First check if the triangle is right.

If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.

longest side = [tex]\sqrt{12}[/tex] and ([tex]\sqrt{12}[/tex] )² = 12

2² + ([tex]\sqrt{8}[/tex] )² = 4 + 8 = 12

Thus the triangle is right → C

Answer:

C.

Step-by-step explanation:

Squaring the numbers we get 2^2 = 4, 8 and 12.

Lets look at the relation between  4 8 and 12:-

12 = 4 + 8

- so it obeys the Pythagoras theorem.

It is a right triangle and the answer is C.

Answer:

6

Step-by-step explanation:

9 x 6 = 54

3 x 6 = 18

54 - 18 = 36

Answer:

9x-3x=36

6x=36

x=36/6

x= 6

3y+4y=49

7y=49

y= 49/7

y= 7

10r-2r+5=69

8r=69-5

8r=64

r=64/8

r=8

Step-by-step explanation:

if it helps don't forget to like and mark me

Answer:

i think c

Step-by-step explanation:

Answer:

hi! the mixed number would be [tex]2\frac{1}{7}[/tex]

Step-by-step explanation:

a remainder can be written as 1/the divisor

Answer:

Gjdkv7fyfkg4kftirfkb8

Answer:

no solution

Step-by-step explanation:

Answer:

If the slope is different - always one solution

if the slope is the same but the y intercept is different - no solution

if the slope and y intercept are the same - infinite number of solutions

Answer:

it is D

Step-by-step explanation:

Answer:

d = 100

Step-by-step explanation:

0.1d + 0.25(10) = 12.5

0.1d + 2.5 = 12.5

0.1d + 2.5 - 2.5 = 12.5 - 2.5

0.1d = 10

0.1d × 10 = 10 × 10

d = 100