Mathematics Middle School

Alexander’s parents are saving for his college fund. They put $8,000 into an interest-bearing account with an annual compound interest rate of 4.5%.

Alexander’s parents want to determine what the balance of his college fund account will be after 12 years.

Which formula would be used for this situation?
A = (8,000 + 0.045)12
A = 8,000(1 + 0.045)12
A = 8,000(1 + 0.12)4.5
A = 8,000 · 0.045 · 12

Answers

Answer 1

Answer:

a=8,000(1+0.12)4.5

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

A = 8000(1+0.045)^2

(note: the last number in the given answer choices should be in superscript, or preceded by ^ to indicate exponent.)

Related Questions

Every 0.05 seconds a machine has a 0.0001% of activating. What is the probability of it activating each second.

Answers

Every 1 second the machine will have a 0.002% chance of activating.

Hope this helps I’m pretty sure I’m right.

Yes it is right every one second it will have a 0.002% chance

A cylinder is sliced perpendicular to its circular base. What shape will the cross section be?

Answers

Answer:

RECTANGLE

Explanation:

Answer:

Rectangle

Step-by-step explanation:

If its sliced perpendicular from its circle base, that means its cutting vertically from it since perpendicular lines form a 90 degree angle.

HELP ME ASAP!!! Tristan is stacking building blocks to make a tower. He takes a break when the tower is 5 2/5 feet tall, which is 1/3 of the height of the tower he wants to build. How tall is the tower when finished? Check all that apply

A. 1/3 x ? = 5 2/5

B. 1/3 ÷ 5 2/5 = ?

C. 5 2/5 x ? = 1/3

D. 5 2/5 x 1/3 = ?

E. 5 2/5 x 3/1 = ?

F. 5 2/5 ÷ 1/3= ?

Answers

Honestly, I'm not sure how to answer this, but I think this can help you.

Well if 5 and 2 fifths is one third of the total height of the building, then that means to find the total height of the building you need to times 5 2/5 by 3.

(I think F is an answer)

The answer is E, they use the formula 5 2/5 x 3/1 which means that they need 3 wholes of the original 5 2/5.

Hector gave 1/4 of his money and an additional $1 to calista he gave 1/5 of his remaining money and an additional $4 to Karen the amount of money hector had left in the end was $31 more than the amount of money he gave to Karen.find the amount of money hector gave to calista

Answers

I believe in youuuu you can do itttt

Kalisa high is only $.50 left because she gave the remaining money to Karen and she was ending with $31 so now we have found the amount that you get Kalisa is only $.50

With screenshot, will mark you as brainiest

Answers

Since a straight line is 180 degrees, you would do 180-165 to make x. 180-165 is 15. x = 15

the answer is x=15!!!!!

The radius of a circle is 3 feet.

Answers

C. 9 pie

Put 3 in for r and and square it which is 9 pie.

The question is in the pictures.

Answers

does it come with an equation??

We can’t see anything

which angles are vertical to each other

Answers

Answer:

angle one and angle three are vertical

It’s B (Angle 1 and Angle 3). If you look at the pic here it shows the definition and gives an example which is kinda same as your question

A square pyramid. The square base has side lengths of 5 feet. The 4 triangular sides have a base of 5 feet and height of 6 feet.
What is the surface area of a pyramid with a base area of 25 ft2 and lateral faces each with areas of 15 ft2?

Answers

Answer:

85 ft^2

Step-by-step explanation:

Ok, the square base area is 5 x 5 = 25 square feet

the triangular sides have an area of (1/2)(5)(6) each, which is 15 square feet each, like you said.

To find the total surface area, you multiply the 15 square feet x 4 (there are 4 sides) and add the base.

15 x 4 = 60 + 25 = 85 square feet

85 ft __________

hope it helps :)

Find the volume of the cone:

Answers

Answer:

v = 628.32 m³

Step-by-step explanation:

v = πr²h/3

v = π(20/2)²(6)/3

v = π(100)(2)

v = 628.318530718

Rounded

v = 628.32 m³

This is what I got 628.32m^3

6.Here is a list of the highest and lowest elevation on each continent

Answers

Asia is the largest sorry if I am wrong

I would love if anyone just anyone could give me the answer, explain, or just give me something close to the answer this is missing after like 4-5 days if I do it now I could still get some credit!!

Answers

Answer:

[tex]54\:\mathrm{km/h}[/tex]

Step-by-step explanation:

Average speed is given by [tex]S=\frac{d}{t}[/tex], where [tex]d[/tex] is distance and [tex]t[/tex] is elapsed time.

Since we want the average speed of the entire trip, we need to total distance of the entire trip and the total time it takes for the entire trip.

What we know:

The trip took 2 hours (2:30 PM to 4:30 PM)The bus travelled [tex]22.5+42.8+42.7=108[/tex] kilometers

Substituting known values, we get:

[tex]S_{avg}=\frac{108\:\mathrm{km}}{2\:\mathrm{h}}=\boxed{54\:\mathrm{km/h}}[/tex]

the solution should be 54km/h if you use s=d/t

Find the Area of the shape
(Area of Composite Shapes)

Answers

Answer:

223.5 Km

Step-by-step explanation:

Area = Length x Width

Solving for Square Shape

8 · 6 = 48 km

Area = Length x Width

Solving for Rectangle Shape

9 · 14 = 126 km

Area = Length x Width ÷ 2

Solving for Triangle Shape

11 · 9 = 99 ÷ 2 = 49.5 Km

48 + 126 + 49.5 = 223.5 Km

Answer 223.5
Your welcome just to make it 20 c characters long how you doing

Find the value of x in the triangle shown below.

Answers

Answer:

√90

Step-by-step explanation:

a² + b² = c²

3² + 9² = c²

9 + 81 = 90²

90 = c²

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

B) [tex]x=\sqrt{90}[/tex]

Step-by-step explanation:

Pythagorean thm formula:

a² + b² = c²

Given:

a = 9

b = 3

c = x

Work:

a² + b² = c²

9² + 3² = x²

81 + 9 = x²

90 = x²

[tex]\sqrt{x^2} =\sqrt{90} \\x=\sqrt{90}[/tex]

Which correctly compares 1/4 × (458 + 231) and (458 + 231) ÷ 4 without doing any calculations?
A. 1/4 × (458 + 231) < (458 + 231) ÷ 4
B. 1/4 × (458 + 231) = (458 + 231) ÷ 4
C. 1/4 × (458 + 231) > (458 + 231) ÷ 4
D. (458 + 231) ÷ 4 < 1/4 × (458 + 231)

Answers

Answer:

Step-by-step explanation:

i dont know im guessing bc finals are tommorow and i need points

A
I strongly think this is the answer

which angles are supplementary to each other ? select all that apply

Answers

Answer:

∠1 and ∠5

Step-by-step explanation:

Angles 2, 3 and 4 are taking up 180 degrees because it is 1/2 of a circle. That means angles 1 and 5 are also taking up 180 degrees because both the angles add up to a straight line

Answer:

I hope you will understand my explanation

Step-by-step explanation:

Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees. Examples: 60° and 120° are supplementary angles.

I need it quickly…….

Answers

Yep he or she is right have a nice day

Answer:

I think it's A.

which angles are vertical to each other ?

Answers

5 and 13 I just did it

Answer:

Make me a Brainlist pls

Step-by-step explanation:

angle 7 and 16 are vertical to each other.

ALGEBRA 1 HOMEWORK- I NEED HELP ASAP!!! thank you!!!!

Answers

i’ll try working it out, if i don’t answer then i didn’t get the answer.

i tried working it out but i couldn’t do it i hope someone else can help you

HELP MEEEEEEEEE!!!!!

Answers

Answer:

J all rational numbers are real numbers

Step-by-step explanation:

the answer for this one is j

A variable is defined as….

Answers

Answer:

Step-by-step explanation:

a quantity which during a calculation is assumed to vary or be capable of varying in value. or a quantity which during a calculation is assumed to vary or be capable of varying in value.

Variable, In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation

What is the circumference of each circle? Use 3.14 for PIE. Round to the nearest tenth if necessary.

Answers

The answer is D 56.5

Answer A.28.3mm

PA BRAINLIST NLNG PO

The table shows the number of miles that a group of friends ran in their first week training to run a marathon. In the second week, they each add 25 miles to their training. What are the mean, median, mode, and range of times for the second week?
Runner Distance (miles)
Sarah 100
Joey 110
Maria 80
Martin 90
Elly 100

Answers

In the second week the mean will be 121 (up 25 from 96)
The median will be 125 (up 25 from 100)
The mode will be 125 (up 25 from 100)
The range will be 30 (same as week 1 as the top and bottom both increased by 25)

It Joey because if you add you will get your answer

Answers

55ft²

Answer:

Solution given:

the surface area of a pyramid with a base area of 25 ft2 and lateral faces each with areas of 15 ft2

=base area *2 laternal faces area

=25+2*15=25+30=55ft²

Draw a double number line to solve the following rate problem.

Answers

Answer:

8 eggs.

Step-by-step explanation:

[tex]\frac{\frac{3}{4} }{1}(8)=\frac{6}{8}[/tex]

Therefore, if you use 6 cups of milk, you should use 8 eggs.

Answer:

6 or 8 is the answer you choose

Michael has a points card for a movie theater.

He receives 35 reward points just for signing up.

He earns 2.5 points for each visit to the movie theater.

He needs 70 points for a free movie ticket.

Write and solve an equation that can be used to determine v, the number of visits Michael must make to earn a free movie ticket.

Answers

Let the number of visits equal x.

Multiply the number of points by the points per visit.

2.5x

Add that to the points he got for signing up:

2.5x + 35

This needs to equal the total points needed:

2.5x + 35 = 70

Solve for x:

Subtract 35 from both sides:

2.5x = 35

Divide both sides by 2.5:

X = 14

He needs 14 visits

He needs 14 total visits to get to 70

763 thousand in scientific
notation

Answers

Answer:

here u go

Step-by-step explanation:

7.63 x 10^5

The first person is correct I double checked

Plz help will be marked BRAINLIEST
Thanks

Answers

Answer:

b = 42° and c = 180-42 = 138°

Answer:

b) 42°

c) 138°

Step-by-step explanation:

Get 42° by looking at its vertical partner(vertical angle). Get 138° by subtracting 42 from it. Subtract 42 from the sum of the entire angle, and get 180° degrees.

Hope this helps! Have a wonderful rest of your day!

-kiniwih426

Plz help will be marked BRAINLIEST

Answers

Answer:

[tex]3x = 90 \\ x + y = 90 \\ x + y + z = 360[/tex]

3x=90
x+y=90
x+y+2z=180

The Smith family have decided to build a uniform walkway that is 3 ft wide using Travertine pavers around their rectangular swimming pool which measures 16 ft by 24 ft.

What is the area of the walkway? - 384 ft sq.

The paver selected by the family measures 6 in by 12 in. How many pavers are needed to cover the walkway?

Answers

Answer:

not sure

Step-by-step explanation:

6*12=72, 72in to feet is 6ft

384/6=64ft

Answer:

384 divided by 72 (6 times 12) = 5.33 i think

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