The first term of a geometric sequence is 640, and the common ratio is (1/2). What
is the 8th term of the sequence?

A: 20
B: 2.5
C: 10
D: 5

Answers

Answer 1

Answer:

The answer is D: 5


Related Questions


0.2 of the money in my savings account is $1500. How much money do I have in my
savings account?

Answers

Answer:

$300

Step-by-step explanation:

hey i need some help​

Answers

don’t click the link it hacks you!!!

6x+2 = 5x+18 PLS QUICKKKK

Answers

Answer:

16

Step-by-step explanation:

Equation : 6x+2=5x+18

Like Terms : x + 2 = 18

Like Terms Again : x = 16

Answer:

6x+2=5x+18

6x-5x=18-2

X=16

Step-by-step explanation:

First you need to group numbers of like terms in one side. Then when you take the other number to the other side of equal sign changes it's form eg +6 change to - 6

PLEASE HELP! OFFERING 20 POINTS, EVEN THOUGH IM RUNNING OUT OF POINTS DUE TO THE AMOUNT OF QUESTIONS I HAVE BEEN ASKING

For the following situation, which inequality would you use to describe it?

The library is having a party for any student who read at least 25 books over the summer. Priya read x books and was invited to the party.

Answers

Answer:

x>or equal to25

Step-by-step explanation:

Answer:

sus

Step-by-step explanation:

amogus

find the volume of the sphere radius is 20 meters

Answers

Using the formula 4/3*pi*r^3=V
V= 1675.52

Hope works for u :)
4000/3(pi) or
4188.79 [corr to 2 decimal place]

the formula to the volume of sphere is [V= 4/3(pi)(radius)^3]. if the diameter of the sphere (which is as shown as in the picture provided) is 20 meters, the radius is 10 meters.

What is the measure of ZB, in degrees?

Answers

Angle B is 32 degrees

This triangle is an isosceles triangle so two sides are equal, angle A and angle C are equal so 74+74=148 and then a triangle equals 180 degrees so you subtract the angles of A and C to find B. 180-148=32

A company has 500 employees, and 60% of them have children. Suppose that we randomly select 4 of these
employees.
Which of the following would find the probability that exactly 3 of the 4 employees selected have children?

Answers

The probability that exactly 3 of the 4 employees selected will have children is given by binomial distribution formula  ⁴C₃(0.60)³(0.40)

What is a Binomial Distribution?

The binomial distribution is a type of probability distribution that predicts the likelihood of obtaining one of two outcomes given a set of inputs. It summarizes the number of tries where each trial has the equal chance of producing the same result.

The formula for Binomial Distribution is given by

P ( x ) = ⁿCₓ pˣq⁽¹⁻ˣ⁾

where

n = number of trials

x = number of successes

p = probability of getting a success in one trial

q = probability of getting a failure in one trial

q = 1 - p

Given data ,

Let the total number of employees be = 500

Now , the probability of success of selecting employees having children is given by p = 0.60

So , the value of q = 1 - p

q = 1 - 0.60

q = 0.40

So , The probability that exactly 3 of the 4 employees selected will have children is given by binomial distribution formula

where,

P ( x ) = ⁿCₓ pˣq⁽¹⁻ˣ⁾

where

n = number of trials

x = number of successes

p = probability of getting a success in one trial

q = probability of getting a failure in one trial

q = 1 - p

Substituting the values in the equation , we get

P ( x ) = ⁴C₃(0.60)³(0.40)

On simplifying the equation , we get

P ( x ) = 4 x 0.246 x 0.4

P ( x ) = 0.3456

Therefore , the value of P ( x ) is 0.3456

Hence , The probability that exactly 3 of the 4 employees selected will have children is given by binomial distribution formula ⁴C₃(0.60)³(0.40)

To learn more about binomial distribution click :

https://brainly.com/question/29350029

#SPJ2

Can someone help me with this please

Answers

I’ve attached my work...
Hope it helps!
Math-way app for problems like number 2
Have a nice day:)


One face of a prism is in the shape of an isosceles triangle with a base of 15 inches. The perimeter of the triangle is 47
inches. How long is each of the equal sides of the triangle?
Provide your answer below:
inches
FEEDBACK
MORE INSTRUCTION
SUBMIT
Content attribution

Answers

Answer:

16 Inches

Step-by-step explanation:

.........................

what is the area of a square that is 2 feet length and 7 1/4 feet width

Answers

14.5 I think.

Hope this helps :)

The perimeter of a semicircle is 46.26 meters. What is the semicircle's diameter?

Answers

Answer:

diameter = 18 m

Step-by-step explanation:

46.26 = 1/2π(diameter) + diameter

46.26 = 1.57d + d = 2.57d

d = 46.26/2.57 = 18 m

You deposit $4,400 into a bank account with an annual simple interest rate of 2.1%. a. How much interest does the account earn in 15 months? b. What is the balance of the account after 15 months?

Answers

Hi I don't know how to explain this in steps but the interest is 15523,2

The balance is 1108,8

Tim has 39 pairs of headphones and 13 music players. Tim wants to sell all of the headphones and music players in identical packages.

Answers

Answer: Well, I think a package is 1 pair of headphones and 1 music player and if it is the answer will be 13 because there are only 13 music players

Step-by-step explanation: Sorry if this is wrong. I just don't fully understand the question :)

I have a question for special product patterns.

It is in the attached image.

Answers

its answer 3 because they are the only difference with two squared numbers

PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

so formula for the volume of a cylinder is:

(πr^2)*h

so the diameter is given to us which is

2r=10 cm

then r=5 cm

h=6 cm and r=5 cm so we just plug it in

(5^2)*6π

25*6π

150π cm^3 or approximately 471.239 cm^3

Answer:

I will give 2 possible answers. One of them involves a pi key and one is jsut 3.14. I don’t know if your suppose to use the Pi key or 3.14.

Possible answer #1 (with Pi key)= The volume would be about 471.24

Possible answer #2 (using 3.14)= The volume would be 471

Explanation:

Well first yoi gotta find the area of the circle. Using a pi key or 3.14 you follow the formula πr^2

The diameter is 10.

To find the radius divide diameter by 2 or multiply by half.

You’d get 5 and then using pi key or 3.14 number.

You’d have your area. Now multiply that by 6 the height and you have your final answer.


Need help with this problem

Answers

I’m pretty sure it is linear sorry if it’s wrong have a good day

A rectangular picture is twice as long as it is wide. If the
area of the picture is 288 in^2, what are its dimensions?

The dimensions of the picture are_____ in long by_____ in wide.

Answers

Answer:

24 in long by 12 in wide.

Step-by-step explanation:

l=2w

288=(2w)×w

288=2w^2

144=w^2

12=w

width is 12 inches. Plug that in to find length...

l=2×12

l=24

The town of Rayburn received 7 more inches of snow than the town of Greenville. Let g represent the amount of snow in Greenville. Enter an algebraic expression to represent the amount of snow in Rayburn. The algebraic expression that can be used is

Answers

The town of Rayburn received 6 + g inches of snow

Answer:

r = g + 7 (let "r" be amount of snow rayburn got)

Step-by-step explanation:

Lets let r = the amount of snow rayburn got.

r = g + 7

The length of a rectangular garden is 3 m greater than the width.the area of the garden is 70 m^2. Find the dimensions of the garden

Answers

Yes it’s crazy
Cause my dad came back with the milk

Answer:

Step-by-step explanation:

A = L x W

so you know that the length is 3m longer than the width, so you could use a formula to represent that

w = L + 3

you then substitute the second equation into the first to solve for L

70 = L x (l +3)

70 = L^2 + 3l

you could then rearrange the formula and solve for l using the quadratic formula  

0 = L^2 + 3l - 70

l = -3 +- (square root (3)^2 - 4(1)(70)) / 2(1)

l = -3 +- (square root 9 + 280) / 2

l = -3 +- (square root 289) / 2

l = -3 +- 17 / 2

then you solve for the two separate roots

l = -3 + 17 /2

l = 14 / 2

l = 7

or  

l = -3 - 17 / 2

l = -20 / 2

l = -10

since a length cannot be negative, this root is not viable. therefore l = 7

to solve for w you would use

w = l + 3

w = 7 + 3

w = 10  

hope this helps. :)))

I don’t understand this at all helppp

Answers

Answer:

I don’t think it’s a right triangle

Step-by-step explanation:

5^2 + 8^2 should equal 12^2 for it to be a right triangle.

help pls
hannah is making a fleece tie blanket. it is 36 inches long. each tie will be 3/4 of an inch wide. how many times will she have

Answers

Proportionately, the number of times that Hannah will have to tie the blanket is 48 times.

What is proportion?

Proportion is the relationship between two numerical values or variables.  It shows the share or portion of a variable to the whole number.

Proportions are expressed as ratios, usually using fractions, decimals, or percentages.

Data and Calculations:

The length of the fleece tie blanket = 36 inches

The width of each tie = 3/4 inches

The proportion of 3/4 inches to an inch = 0.75 (3/4)

The number of times to tie the blanket = 48 times (36/0.75)

Thus, the number of times that Hannah will tie the blanket is 48 times.

Learn more about proportions at https://brainly.com/question/870035

#SPJ1

Which expression can be used to find the volume
of the rectangular prism in cubic centimeters?
85 cm
Area of base: 245 cm
A. 85 + 245
B. 85 X 85 X 245
C 85+ (85 x 245)
D.85 245

Answers

Answer:

Step-by-step explanation:

Answer: Its B

Step-by-step explanation:

there are 240 students who attend Elmwood school. Two thirds of the students have brown hair. how many students have brown hair? how many students do not have brown hair?

Answers

Answer:

160 has brown hair while

80 do not have brown hair

Step-by-step explanation:

two third means 2/3

therefore to find how many student have brown hair,

we say- 2/3 x 240 = 160

since we know that 160 students have brown hair, we just subtract it from 240

i.e 240 - 160 = 80

If sin(38°) and cos(52°) does that add up to 90°?

Answers

Answer:

38 plus 52 is in fact 90, but Sin and Cos will be different.

Step-by-step explanation:

Honestly I haven't learned Sin or Cos

no they don’t add up to 90 it will give you 1.23

but actually 38+52=90 but putting sin and cos will definitely differ


I WILL GIVE BRAINILYEST!!!This is a graded discussion:
Modules
Mathematical Modeling Discussion
Syllabus
Grades
99 Co
5.272 a
People
0.31 MeV B 99.80%
Office 365
1.48 Mev B-
1.1732 MeV Y
0365 Email
1.3325 MeV Y
The rate of decay of a radioactive substance depends upon the
amount present initially. The mass y (mg) of the radioactive substance
cobalt-60 present in a sample at time < (years) is represented by the
-0.13151
exponential equation y = 50 e
Answer the following questions in complete sentences.
1. How does the exponential equation above compare to the equation
for simple interest that is compounded continuously? Explain the
similarities. What is the initial amount of cobalt-60 in the sample?
2. How much cobalt-60 is left after 8.4 years? Show your work
3. What would be the y-intercept of the graph? What does it
represent?
4. After how many years will the amount of cobalt-60 left be 6.25
mg? Explain what happens to the cobalt-60 after 50 years?
5. Discuss some real-world" examples and uses of cobalt-60

Answers

Answer:1.40

2.20

3.100

4.39

5.7

7

Step-by-step explanation:

I’ll give you brain list if you solve it

Answers

Answer:

1000$ is the correct ans I think ?

Students in a high school statistics class wanted to see if the distribution of the colors of a popular candy was different in the bags for different types of candies the company manufactures. The students purchased several large bags of regular candies, tropical-flavored candies, and sour-flavored candies. For each type of candy, the students took a random sample of 100 candies and recorded how many of each color (red, green, yellow, or blue) were in the sample. The students verified the conditions for inference and calculated a chi-square test statistic of 12.59 with a corresponding p-value of 0.05. Which of the following is the correct interpretation of the p-value in the context of the test?
A The hypothesis test has a significance level of a = 0.05.
B There is a 5 percent chance that the distribution of colors is different for the different types of candies.
C There is a 5 percent chance that the distribution of colors is the same for the different types of candies.
D Assuming that the distribution of colors for the different types of candies is the same, there is a 5 percent chance of finding a test statistic of 12.59 or larger.
E Assuming that the distribution of colors for the different types of candies is different, there is a 5 percent chance of finding a test statistic of 12.59 or larger.

Answers

Answer:

C There is a 5 percent chance that the distribution of colors is the same for the different types of candies.

Step-by-step explanation:

The null hypothesis ; H0 : there is no difference in distribution of color for the different types of candies

Alternative hypothesis ; H1 : there is difference in the distribution of color for the different types of candies

When the Pvalue is < or = α ; we reject the null;

Here, the Pvalue and α = 0.05 ; hence, we reject the null.

A Pvalue of 0.05 means that there is only a 5% chance that the null is correct. That is ; There is only a 5 percent chance that the distribution of colors is the same for the different types of candies

Answer:

Assuming that the distribution of colors for the different types of candies is the same, there is a 5 percent chance of finding a test statistic of 12.59 or larger.

Step-by-step explanation:

The null hypothesis is that there is no difference in the distribution of colors. Under the assumption that the null hypothesis is true, a p-value of 0.05 means that there is a 5 percent probability of obtaining a test statistic value as extreme as, or more extreme than, 12.59.

HELP FAST
A house costing $500,000 with a 15-year mortgage and an APR of 4.5% would
have what monthly payment?

Answers

Answer:

3825

Step-by-step explanation:

Please help!!!!!!!!!!!!!!!!!!!

Answers

Answer:

there are infinitely many solutions

Step-by-step explanation:

1/2(b + 14) is the same as (b + 14) / 2

OMG I ONLY HAVE 10 MINUTES HELP PLEASE :(

Answers

Answer:

126 in^3

Step-by-step explanation:

15 x 2 + 18 x 2 + 30 x 2 = 126

Answer:

126 in^3

Step-by-step explanation:

You Multiple the equation by each number there for you get 126 same with the ^3 when you add it all up together if you understand what I am saying like for example the equation: 15 x 2 + 18 x 2 + 30 x 2 = 126

Other Questions
She refused to her strongly held beliefs. A ball rolls off an 8.0 m high building and strikes the ground 5.0 m away from the base of the building. How fast was the ball rolling? Stratovolcanoes Mt. Vesuvius, Italy. Fly to Mt. Vesuvius in Italy and turn on the Pompeii Pyroclastic Flow tour (run the tour twice to let the imagery load). Use the Ruler tool to determine the distance (in km) from Mt. Vesuvius to the excavated ruins of the city of Pompeii (which was buried by volcanic ash and pyroclastic material from Mt. Vesuvius during the eruption of 79 C.E.) If a nue ardente (pyroclastic surge) accompanies the next eruption of Mt. Vesuvius and it travels at 300 km/hr, how many minutes would it take to reach the site of ancient Pompeii? Describe why the geography of river valleys were ideal locations for the earliest civilizations. Carlo buys $14.40 worth of grapefruit. Each grapefruit costs $0.80.how many does he have If a person has identified 10 problems he needs to improve, how should he decide which to address?A. Randomly select one. As long as you are improving something, thats all that matters.B. Address all of them at once. It is not good to put off fixing problems that you are aware of.C. Address the one that causes the most problems first.D. Address the easiest one to fix first. IS AFRICA A MONOLITH? WHAT ROLE DOES LAND PLAY WHEN IT COMES TO CULTURE? Write all the possible names for the quadrilateral. Then give the best name.a.quadrilateral, parallelogram, rhombus; rhombusb.quadrilateral, parallelogram, rhombus; quadrilateralc.quadrilateral, parallelogram, rectangle; rectangled.quadrilateral, trapezoid; trapezoid Please select the best answer from the choices providedABCD Which sequence of development is correct? 1. Egg, zygote, fetus, embryo 2. Egg, zygote, embryo, fetus 3. Zygote, fetus, egg, embryo 4. Fetus, egg, zygote, embryo A spinner has three sections colored green, purple, and pink. If the spinner is spun twice, what is the probability of getting a green and a purple in any order?4/9 1/9 1/3 2/9 Look at the system of equations below.{y=3x6{x+3y=12What point represents the solution to the system? express y as a function of x.I keep getting hairy answers and I'm not sure I'm doing this correctly b)so mltiplos de 3 mas no de 2: When Billy tried to rescue Little Ann, ____________? A. the ice started to breakB. he hit his head on a tree limbC. he became tangled in briersD. he slipped and fell over the ledge Please hurry, no links to anwsers You just found out that a friend's older brother died in a car crash. What would you say to your friend? Look at the diagram of a fuel cell below.Which part of the fuel cell does A represent?A. airB. anodeC. cathodeD. electrolyte What are the integer solutions to the inequality below?1x PLEASE HELP!!! I WILL RATE YOU BRAINLIESTThe first laptop ever was sold was the Osborne 1. It came onto the market in 1981, and it had a mass of 11 kg. Suppose that since 1981 the mass of laptops has decreased at an average rate of 4.7% per year. What was the approximate weight of a laptop in 2019?a. 6.43 kgb. 8.10 kgc. 4.62 kgd. 1.76 kg help me on this i will give brainliest to the first answer