Mathematics High School

Which geometric series results in a sum of -69, 905?
O A.
SOB.
O C.
O D.
10
k=0
(-4)*
- }(4) *
Σ-1(5)
k=0
Σ 1 (-5)*
k=0

Answers

Answer 1

The geometric series which result in a sum of -69,905 is: D. [tex]\sum^{9}_{k=0} -\frac{1}{5} (4)^k[/tex]

The standard form of a geometric series.

Mathematically, the standard form of a geometric series can be represented by the following expression:

[tex]\sum^{n-1}_{k=0}a_1(r)^k[/tex]

Where:

a₁ is the first term of a geometric series.r is the common ratio.

Also, the sum of a geometric series is given by:

[tex]S=\frac{a_1(1-r^n)}{1-r}[/tex]

For option A, we have:

r = -5, n = 8, a₁ = 1/4 = 0.25

[tex]S=\frac{0.25(1-(-5)^8)}{1-(-5)}[/tex]

S = -24,414.

For option B, we have:

r = 5, n = 12, a₁ = -1/4 = -0.25

[tex]S=\frac{-0.25(1- 5)^{12})}{1-5}[/tex]

S = -15,258789.

For option C, we have:

r = -4, n = 11, a₁ = 1/5 = 0.2

[tex]S=\frac{0.2(1-(-4)^{11})}{1-(-4)}[/tex]

S = -279,620.

For option D, we have:

r = 4, n = 10, a₁ = -1/5 = -0.2

[tex]S=\frac{-0.2(1-4^{10})}{1-4}[/tex]

S = -69,905.

In conclusion, the geometric series which result in a sum of -69,905 is [tex]\sum^{9}_{k=0} -\frac{1}{5} (4)^k[/tex]

Read more on geometric series here: brainly.com/question/12630565

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Which Geometric Series Results In A Sum Of -69, 905?O A.SOB.O C.O D.10k=0(-4)*- }(4) *-1(5)k=0 1 (-5)*k=0

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The integer is -56. The word “lost” represents negative.

A coupon book has a coupon for 40% off of a lift ticket at Mt. Woodstock. A lift ticket usually costs $70. How much would a skier save?

Answers

Answer:

The Skier would save $28 dollars

Step-by-step explanation:

The answer is 28 because 40% of 70 is 28.

Hope this helps! :)

Answer:

The skier would spend $48 and save $28

Step-by-step explanation: In the attachment

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Answer:

A= Yes, it's the equation

B= it's what the problem equals

Step-by-step explanation:

I think this is right I'm not to sure but I think it is

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Step-by-step explanation:

the process shown in the picture.

Is this a right triangle?

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No, one of the angles has to be 90º for it to be a right triangle

Step-by-step explanation:

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no. it doesn't have a right angle.

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144

Step-by-step explanation:

First subtract 180 from 20% of 180.

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Solve the quadratic equation x^2- 11x = 12 using any method. Describe the method you chose and why you chose it.

​

Answers

Answer:

12, -1 its the answer

Step-by-step explanation:

1. subtract 12 from both sides

2. simplify which looks like this x^2- 11x - 12=0

3.solve with the quadratic formula

4.separate the solutions

and there you go

If 8 model airplanes cost $24, what is the unit price of the model airplanes? The unit price of the model airplane.​

Answers

Answer:

3 dollars per airplane

Step-by-step explanation:

24/8 is 3, where 8 is airplanes and 24 is cost in total

Is my answer correct???

Answers

Answer:

Yes! Great job!

Hope that helps!

yes it is correct!!!!!!!!!!!!!!!!!!!!!!

Do Ilboe.org bookmarks
Lesson 2 Review...
< Exit
Topic 5 Assessment
IMPLAYER
Drag each expression to its equivalent expression. Each expression may be used only once.
+ 1
4
1
X +
+1
3
Expression
Equivalent Expression
-
3
4
1
4
+
3
+
3
4
See

Answers

You can do this just believe in your self
It A

Using Proportions to Make a Prediction
Of 25 grocery store shoppers, 14 said that their family’s favorite breakfast is cereal bars. Predict how many of 500 families at grocery store would buy cereal bars.





Of 200 radio-controlled cars that were manufactured by one company, 3 were defective. The company manufactures 1000 cars each day. About how many
defective cars would you predict are produced each day?


HELP......HELP......HELP

Answers

○=> Solution (1) :

Ratio of people who said they like cereal bars to people who said they don't = 14:11

Number of people at a grocery shop = 500

Which means :

[tex] =\tt \frac{14}{25} \times 500 [/tex]

[tex] =\tt \frac{14 \times 500}{25} [/tex]

[tex] = \tt \frac{7000}{25} [/tex]

[tex] \color{plum}= \tt280 \: people[/tex]

Thus, 280 people would buy cereal bars.

▪︎Therefore, out of 500 people, 280 people would buy cereal bars.

○=> Solution (2) :

Ratio of cars which worked well to cars which were defective = 297:3

Number of care produced each day = 1000

Number of defective cars produced each day :

[tex] = \tt \frac{3}{200} \times 1000[/tex]

[tex] =\tt \frac{3 \times 1000}{200} [/tex]

[tex] = \tt\frac{3000}{200} [/tex]

[tex]\color{plum} = \tt15 \: defective \: cars[/tex]

Thus, 15 defective cars are produced.

▪︎Therefore, out of 1000 cars produced each day, 15 cars are defective.

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Answer:

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Step-by-step explanation:

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Answer:

1. D) -4/3 or 4/3

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Step-by-step explanation:

Answer:

x=4/3 or -4/3

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Step-by-step explanation:

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when i do proofs, i always have notes that tell me the answer. maybe look in your book, sometimes they r in there! hope this helps
AB is parallel to DC (given).
AB is congruent to DC (given).
Both triangles share line AC...so you can start there and say that AC is congruent to AC (reflexive property).
Since AB and DC are parallel, and they are cut by a transversal (line AC), you can say that angle DCA is congruent to angle BAC (alternate interior angles theorem).
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Find the values of the variables and the lengths of the sides of this kite.

Answers

Answer:

option D

Step-by-step explanation:

option D is the correct answer of this question .

plz mark my answer as brainlist.

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Answer:

D

Step-by-step explanation:

Help meh ill mark you all 4 plz if you can

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Answer:

Step-by-step explanation:

5+ 1 7/8 = 6 7/8

3 - 1 3/4 = 1 1/4

7 3/4 + 4 = 11 3/4

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The length of an alligator in a zoo is 14 5/6 feet. The Everglades National Park lists the longest alligator ever recorded in Florida at 17 5/12 feet. Which is the difference in their lengths? a 2 3/4 feet b 2 7/12 feet c 3 5/8 feet d 3 5/6 feet

Answers

9514 1404 393

Answer:

  b)  2 7/12 ft

Step-by-step explanation:

The difference is ...

  (17 5/12 ft) - (14 5/6 ft) = (17 -14) ft + (5/12 -5/6) ft

  = 3 ft + (5/12 -10/12) ft = 3 ft - 5/12 ft

  = 2 7/12 ft

(3x - 2)³=
gives the solution pls.​

Answers

Answer:

27x^3 - 54x^2 + 36x - 8

Step-by-step explanation:

(3x - 2)^3

= (3x - 2) (3x - 2) (3x - 2)

= 27x^3 - 54x^2 + 36x - 8

Hope this helps :)

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Answer:

1x

Step-by-step explanation:

What is the answer to 2 + n = 16

Answers

Answer:

Original Equation: 2+n=16

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Simplify: n=14

Hope this helps!

n = 14
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To do this correctly, subtract 2 on both sides. This cancels out the 2 on the left, leaving you with n = 16-2. 16-2=14

d-1/2=5/12 what is d??

Answers

Answer:

d = [tex]\frac{11}{12}[/tex]

Step-by-step explanation:

1) To solve for d, isolate it in the equation. So, to get rid of the [tex]-\frac{1}{2}[/tex] with the d, add [tex]\frac{1}{2}[/tex] to both sides.

[tex]d-\frac{1}{2} = \frac{5}{12} \\d - \frac{1}{2} +\frac{1}{2} = \frac{5}{12} + \frac{6}{12} \\d = \frac{11}{12}[/tex]

Thus, d = [tex]\frac{11}{12}[/tex].

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Answers

Answer and explanation:

Given that initial population of fruit flies = 4

And population of fruit flies triple every week

If population of fruit flies triple every week then let x represent number if weeks

Therefore function can be modelled thus :

f(x)= 4 + 3x

To demonstrate that the function is correct, we use an example. Now assume population grows for two weeks, using the function:

f(2)= 4+3×2

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Therefore population grows to 10 fruit flies in 2 weeks based on our function

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Answers

Answer:

x = 9

Step-by-step explanation:

3 - √x = 0

Subtract 3 from both sides of the equation

3 - 3 - √x = 0 - 3

-√x = -3

Divide both sides by -1

-√x / -1 = -3 / -1

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Step-by-step explanation:

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Answers

Answer:

x=15/7

Step-by-step explanation:

7x-3=12

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n the diagram, the measure of angle 9 is 85°.

4 lines intersect to form 16 angles. The angles created, clockwise from top left are 1, 2, 3, 4; 5, 6, 7, 8; 9, 10, 11, 12; 13, 14, 15, 16.

Which angle must also measure 85°?
Angle2
Angle5
Angle11
Angle12

Answers

Answer:

The real answer is angle 5

Step-by-step explanation:

The angle 11 must measure the angle 85. The correct option is C.

What are lines and angles?

An infinitely long row of evenly spaced dots that extends in both directions makes up a line. Its length is the only dimension it has. An illustration of a line is a horizontal mark made on a piece of paper. A figure made by two rays that intersect at the same endpoint is referred to as an angle.

Given that in the diagram, the measure of angle 9 is 85°. 4 lines intersect to form 16 angles. The angles created, clockwise from the top left are 1, 2, 3, 4; 5, 6, 7, 8; 9, 10, 11, 12; 13, 14, 15, 16.

The measure of angle 9 is equal to the measure of angle 11. it means that angle 9 and angle 11 are equal to 85 degrees. The image is attached with the answer below. Shows the angle 9 and angle 11 are vertically opposite angles.

To know more about lines and angles follow

https://brainly.com/question/25770607

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I did this myself, but I kept getting negative numbers can someone else try and do this and see what you get ​

Answers

Answer:

6

Step-by-step explanation:

Answer:

67

Step-by-step explanation:

4x = 2x + 12

4x - 2x = 2x - 2x + 12

2x = 12

2x ÷ 2 = 12 ÷ 2

X = 6

Plug into HI

9 × 6 + 13 = 67

The weights of four puppies are shown in pounds

9.5 9
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Answers

Answer:

9.125 9, 9.59

Step-by-step explanation:

If y = 3x - 5 and x = 3y - 5, then what are x and y?

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Answer:

2?

Step-by-step explanation:

Answer:

x nang iwan at y naman ganon

Solve for xxx. Your answer must be simplified. x/3 ≥ −33

Answers

we can reduce it by multiplying 3 with -33
X>=-99 that’s your final answer!! I’m sorry about the sign. I couldn’t type it here

Answer:

x ≥ -99

Step-by-step explanation:

Its on khan academy

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Answers

Answer:

I am pretty sure it is option a and c

Sorry if i am wrong

Club A has fee of $21 plus $23 monthly Club B has fee of $12 plus $26 monthly When will they be the same and what is it?

Answers

Answer:

hmmmmmmmm

Step-by-step explanation:

The club would be the same on the 3rd month, with the same money fee of $90
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