Find the sum of the first 7 terms of the following series, to the nearest integer.
125,50, 20, ...

Answers

Answer 1

Answer:

[tex]r = 2.5 \\ sum = \frac{a( {r}^{n - 1} )}{r - 1} \\ = \frac{125( {2.5}^{7 - 1} )}{7 - 1} \\ = \frac{30517.6}{6} \\ = 5086.3[/tex]


Related Questions

Use a net of the square pyramid, if necessary, to find the surface area of the pyramid.

Answers

Answer:

128 if it wants the whole thing than 192

Step-by-step explanation:

Write an equation that represents the line

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I don’t know if you want both but I’m going to give you both.

(0,2) and (4,3)

help again gives brainlist

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Answer:

rhombii

Step-by-step explanation:

they all look equilateral without all having right angles

The polynomial x3 + 8 is equal to

Answers

Answer:

The polynomial x3 + 8 is equal to (x + 2)(x2 – 2x + 4)

Step-by-step explain

Which graph represents the same relation as the table below?

Answers

Answer:

so Left hand side down that your answer

can you help me get the answer for this Q :)

Answers

Answer:

sorry need some points

Step-by-step explanation:

49 + 710 is 10390.49 + 710 is 10390.

Which is equal to –214°? Negative StartFraction 107 pi Over 180 EndFraction radians Negative StartFraction 107 pi Over 90 EndFraction radians Negative StartFraction 107 pi Over 50 EndFraction radians Negative StartFraction 107 pi Over 45 EndFractionradians

Answers

Answer: 1. equal to - having the requisite qualities for; "equal to the task"; "the work isn't up to the standard I require" adequate to, up to, capable.

Step-by-step explanation:Glad Too Help :))

Answer:

B

Step-by-step explanation:

What is the solution to Negative 1 minus 7? A number line going from negative 10 to positive 10. –8 –6 6 8. plzzzzz help

Answers

Answer:

-8

Step-by-step explanation:

Answer:

the answer is negatvie 8

Step-by-step explanation:

HELP WILL GIVE BRAINLIEST SHOW WORK LOOK AT IMAGE

Answers

The correct answer is x = -3

What is the quotient of StartFraction 2 Superscript 4 Baseline Over 2 Superscript negative 4 Baseline EndFraction?

Answers

Answer:

256

Step-by-step explanation:

Given. :

2⁴ / 2^-4

2⁴ = 2 * 2 * 2 * 2 = 16

2^-4 = 1/2⁴ = 1 / (2 * 2 * 2 * 2) = 1 / 16

16 ÷ (1 /16)

16 * 16 /1

= 256

Answer:

Step-by-step explanation:

1/256 i believe

the length of a rectangle is 5 less than twice the width. if the perimeter of the rectangle is 14 centimeters, find the dimensions of the rectangle

Answers

Answer:

25cm and 15cm is what your looking for❤

i’m so confused on how to do it

Answers

Answer:

785.4

Step-by-step explanation:

The formula to find the surface area of a cylinder is

2* pi* radius* height + 2* pi* 2radius.

2( 3.14) (5) (20)= 628

2 (3.14* 5*5)= 157

628+ 157= 785.

Latoya earns 41 dollars per week working part-time at a book store. She makes one dollar more for each book that she sells. The amount, A (in dollars), that Latoya earns in a week if she sells b books is given by the following.
A=41+b
How much does Latoya earn in a week if she sells 16 books?

Answers

Answer:

57$

Step-by-step explanation:

The equation is A= 41 + b

A represents the entire amount she makes that week.

41 is the minimum she makes every week.

b represents any books she sells which earn an extra 1 dollar.

Plug in 16 books into the equation.

A= 41+ 16

A= 57

The combination locks on the lockers at Hillside School have numbers from 0 through 39 (inclusive). A locker combination consists of three different numbers, where the order matters. Because of the way the locks are manufactured, all three numbers are even or all three numbers are odd. How many combinations are possible

Answers

Answer:

13680

Step-by-step explanation:

Since we have number from 0 to 39 inclusive, there are 40 number all together.

Now there are 20 odd numbers and 20 even numbers since half of the the numbers are odd and half even.

Now, since we require 3 numbers for our locker combination which are either all even or all odd, the number of ways we can arrange 3 numbers from 20 when the order matters is ²⁰P₃ = 6480 ways for either odd or even numbers. So, for both odd and even numbers, we have the sum of even and odd number of ways ²⁰P₃ + ²⁰P₃ = 2 × ²⁰P₃ = 2 × 6480 = 13680. So, we have 13680 combinations of locks.

if 6 = 68 degrees, find the measures of angles 4, 5 ,7

Answers

Answer:

4 = 68

5 = 112

7 = 112

Step-by-step explanation:

Hope it helps

I hope it's helpful .....

The growth rate of some species of bamboo is 0.0000237 miles per hour. write this in scientific notation

Answers

Answer:

2.37 x 10 ^ -5

Step-by-step explanation:

the angle of elevation from point A to the top of the press box is 49 digree. if point A is 400ft from the base of press box, how high is the press box?

Answers

Answer:

Press box is 460.15 feet high.

Step-by-step explanation:

From the picture attached,

Point A is 400 feet away from the press box.

Angle of elevation of point C is 49°.

By applying tangent rule in the given right triangle,

tan(49°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

tan(49°) = [tex]\frac{BC}{AB}[/tex]

BC = ABtan(49°)

BC = 400[tan(49°)]

BC = 460.15 ft

Therefore, press box is 460.15 feet high.

Solve for x
[tex]8 {}^{2 + x} + 2 {}^{3x} = 32 {}^{ \frac{1}{2} } [/tex]

Answers

Answer:

8^2+x + 2^ 3x = 32^ 1/2

2^3(2+x) + 2^3x = 2^5^1/2

All two's will cancel out

3(2+x) + 3x = 5^1/2

6+3x + 3x = 5^1/2

6 +6x = 2.23

6x = 2.23 - 6

6x = -3.77

x = -3.77÷ 6

x = -0.63

What's the circumference of a circle with a diameter of 18 inches? Use 3.14 for pi, do not round the answer.​

Answers

Circumference = (3.14)(18)

C= 56.52inches

Using the information given on the
diagram, which congruence postulate
or theorem can be used to prove
PSR = RQP?

Answers

Step-by-step explanation:

ps||pr are parallel

pQR=Rsp

Brainliest given to anyone who gets both answer


Helen draws a random circle,
She then measures its diameter and circumference,
She gets a circumference, C, of 405 mm correct to 3 significant figures.
She gets a diameter, d, of 130 mm correct to 2 significant figures.
Helen wants to find the value of n using the formula n =

Calculate the lower bound and upper bound for Helen's value of .
Give your answers correct to 3 decimal places.

Answers

Answer:

3.115

Step-by-step explanation:

pi = 405 ÷ 130

= 3.1153846154

upper bound 3.116

lower bound 3.115

Edit : Incorrect Answer

Answer:

Lower Bound = 2.996

Upper bound = 3.244

Step-by-step explanation:

help meee it's pythagorean theorem, just need answers plsssssss

Answers

Answer:

Hi, there your answer is C or D and the second page is C

Step-by-step explanation:

Please help me with this

Answers

Answer:

Step-by-step explanation:

Gabriela has  solved incorrectly. 5 should distributed to 9x & (-8) and 4 should be distributed between x & 2

5(9x - 8) = 4*(x + 2)

5*9x - 5*8 = 4*x + 4*2

45x - 40  = 4x + 8

Subtract 4x from both sides

45x - 4x - 40 = 8

       41x - 40 = 8

Add 40 to both sides

41x = 8 + 40

  41x = 48

x = 48/41

The graph shows the function f(x).
Which equation represents f(x)?
Of(x) = -3
5
Of(x) = -3/x-1
3
2
Of(x) = 3-x-1
f(x)
Of(x) = -x
de
-10 -8 6 -4 -2,
2 4
6
8
10
L2
The
4
-5
1,99%
AI
[
Mark this and return
Save and Exit
Dlaxt
Submit
tiny

Answers

Answer:

C

Step-by-step explanation:

What we have to do here is to select a point from the graph

We can select the point (-8,1)

What this simply mean is that when x = -8, y = 1

Now, let us take a look at the second third option

f(-8) will be the cube root of -(-8) , with 1 subtracted from it

The cube root of 8 is simply 2, subtracting 1 from it will yield 1

so that makes the point (-8,1) valid

Answer:

C

Step-by-step explanation:

can someone answer for me pls
x^2 + 10x + 24 ?

Answers

Answer: (x+4)(x+6)

Explaination:

x^2 + 10x + 24

x^2 + 6x + 4x + 24

x(x+6) + 4(x+6)

(x+4)(x+6)

Solution: (x+4)(x+6)

James is 12 years old and his brother is 16. Which ratio represents James' age to his brother's age 4 years from now?

Answers

Answer:

16/20=1/4

Step-by-step explanation:

James is 1/4 younger then his brother

4:5 is the ratio which  represents James' age to his brother's age 4 years from now.

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Given that James is 12 years old

James  brother is 16 years old.

We need to find the ratio which represents James' age to his brother's age 4 years from now.

After 4 years the James age is 12+4, 16 years

After 4 years the James brother age is 16+4, 20years

The ratio of James' age to his brother's age is 16/20

4/5

Hence, 4:5 is the ratio which  represents James' age to his brother's age 4 years from now

To learn more on Ratios click:

https://brainly.com/question/13419413

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As apart of her physical fitness training, Kaylee cycled at 30km/h and then jogged at 8 km/h. She spent 2 hours working out and covered a distance of 49 km. How long did Kaylee spend at each activity?

Answers

Answer:

for cycling, time is 1.5 hours

for hogging time is 0.5 hour.

Step-by-step explanation:

speed of cycling = 30 km/h

speed of jogging = 8 km/h

total time  = 2 hrs

total distance, D = 49 km

Let the time for cycling is t, so that time time for jogging is 2 - t .  

distance = speed x time

49 = 30 x t + 8 (2 - t)

49 = 30 t + 16 - 8 t

33 = 22 t

t = 1.5 hour

So, time for cycling is 1.5 hours and time for jogging s 0.5 hr.

Solve the equation

1 . J + -2 = -22

Answers

J + -2 = -22

Adding a negative number changes the equation to subtract ruin:

J - 2 = -22

Now add 2 to both sides to get the answer:

J = -20

Collect like term

J= -22 - 2

J= - 20

would the negative reciprocal of -8 be -1/8 or would it be postive?

Answers

it would be 1/8 since it’s just the opposite

Players on a volleyball team wear jerseys numbered 1 through 9. In how many different ways could you arrange 5 of the players?
a
15,120
b
120
c
362,880
d
24

Answers

Answer:

Total number of arrangements for 5 players = 15,120 arrangements

Step-by-step explanation:

Given:

Number given from 1 to 9

So,

Total number for jerseys = 9

Find:

Total number of arrangements for 5 players

Computation:

Total number of arrangements for 5 players = 9! / [9! - 5!]

Total number of arrangements for 5 players = 9 x 8 x 7 x 6 x 5

Total number of arrangements for 5 players = 15,120 arrangements

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