Mathematics Middle School

The first military strike of the Civil War was at

Bull Run


Lexington


Fort Sumter


Gettysburg

Answers

Answer 1
It was in fort sumter

Related Questions

The diameter of a DVD is 12 centimeters. The hole in the center of a DVD has a diameter of 1.5 centimeters. Find the area of the DVD. Round to the nearest hundredth if necessary.

Answers

111.27 centimeter squared.

The area of the circular DVD is given by A = 111.33 cm²

What is a Circle?

A circle is a closed figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle

The circumference of circle = 2πr

The area of the circle = πr²

where r is the radius of the circle

The standard form of a circle is

( x - h )² + ( y - k )² = r²,

where r is the radius of the circle and (h,k) is the center of the circle.

The equation of circle is ( x - h )² + ( y - k )² = r²

For a unit circle , the radius r = 1

x² + y² = r² be equation (1)

Now , for a unit circle , the terminal side of angle θ is ( cos θ , sin θ )

Given data ,

Let the area of the circular DVD be A

Let the diameter of the DVD = 12 cm

So , the radius of the DVD = 6 cm

Now , the diameter of the hole = 1.5 cm

So , the radius of the hole = 0.75 cm

And , area of the circular DVD be A = π [ ( 6 )² - ( 0.75 )² ]

On simplifying , we get

The area of circular DVD is A = π ( 36 - 0.5625 )

The area of circular DVD is A = π ( 35.4375 )

The area of circular DVD is A = 111.33 cm²

Hence , the area of the circular DVD is 111.33 cm²

To learn more about circle click :

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Sharon is paving a rectangular concrete driveway on the side of her house. The area of the driveway is 5x^2 + 43x - 18, and the length of the driveway is x + 9.

Additionally, Sharon plans to install a carport over a small portion of the driveway. The volume that the carport can enclose is 48x^3 + 68x^2 - 8x - 3, and the area of driveway beneath the carport is 8x^2 + 10x - 3.

Determine the width of the entire driveway and height of the carport in terms of x. Replace the values of m and b to complete the expression that represents the width of the entire driveway on the first line, and then replace the values of m and b to complete the expression that represents the height of the carport on the second line.

You have to type the answer in mx+b
im just trying to graduate....

Answers

The width of the driveway is 5x-2.
The height of the carport is 6x+1.

We complete polynomial long division for both of these.  

For the driveway:
Dividing 5x²+43x-18 by x+9, we first see how many times x will go into 5x².  It goes in 5x times; we write this in the division problem above 43x.  Multiplying back through, 
5x(x+9) = 5x²+45x.  This goes below 5x²+43x.  We now subtract:
5x²+43x-(5x²+45x)= -2x; this goes below the 45x we wrote earlier.  Bring down the -18.
Now we see how many times x goes into -2x; it goes -2 times.  This goes beside our 5x in our answer at the top.  Multiplying back through,
-2(x+9) = -2x-18.  This goes below our -2x-18 we had, and gives us an answer of 5x-2 with a remainder of 0.

For the carport:
To divide 48x³+68x²-8x-3 by 8x²+10x-3, we see how many times 8x² will go into 48x³.  It will go 6x times; write this above -8x.  Multiplying back through,
6x(8x²+10x-3) = 48x³+60x²-18; write this below 48x³+68x²-8x.  Now subtract:
48x³+68x²-8x-(48x³+60x²-18) = 8x²+10x; this goes below our 48x³+60x²-18.  Bring down the -3.
Now we want to see how many times 8x² will go into 8x².  It goes 1 time; write this beside our 6x at the top.  Multiplying back through, 
1(8x²+10x-3) = 8x²+10x-3; write this below the 8x²+10x-3 we have already down.  When we subtract these, we get a remainder of 0, with our answer up top as 6x+1.

Answer:

Width: 5x-2

Height: 6x+1

Step-by-step explanation:

which types of triangles can be formed by taking the cross section of a cube

Answers

Equilateral, isosceles, and scalene are the type of triangles that can be formed by taking the cross section of a cube.


Hope this helps!!

A single , standard number cube is tossed. What is the probability of getting a 4 or 5 ?

1. 1
2. 1 / 5
3. 1 / 3
4. 1 / 6

Answers

[tex] |\Omega|=6\\
|A|=2\\\\
P(A)=\dfrac{2}{6}=\dfrac{1}{3}\approx33\% [/tex]

Math Financial Literacy HELP

Answers

It should be 211 B
Since her taxabnle income is at least 39,250 but less than 38300 her tax is 5944 but she paid 6155. 6155-5944=211

7÷10p^3 ÷ 2÷ 8p^2 please help

Answers

7p^5/160 is the answer

-6 < -3; Divide both sides by -3

Answers

2[tex] \geq [/tex] 1

Help please i can’t figure this out

Answers

to find the y-intercept: replace x with 0
to find the x-intercept: replace y with 0

x-int:
0 = 10x - 32
32 = 10x
x = 3.2
(3.2, 0)
y-int:
y = 10(0) - 32
y = -32
(0, -32)

Your friend Zoe is very earnest about the benefits of her special diet. She believes that having kale for breakfast every day will lower your cholesterol.

4a. What's the best method for testing Zoe's claim: a survey, an observational study, or an experiment? Give at least one reason to support your answer. (4 points)

4b. Describe how you would set up a test to determine how much truth there is to Zoe's claims. In particular, what steps would you take to make sure the results were unbiased and valid?

Answers

- The best method to test Zoe's claim is an observational study, as with this method it is possible to observe if the claim presents some truth to it. Observational studies are often used in testing claims like Zoe's as they allowed to have a great access to the variable that are behind a claim of that type, and so they are also more accessible.

- The set up I would use is an observational study of a great number of people, over a long period of time, that have to have kale for breakfast every day, with a measurement of their cholesterol over the time. the great number and the long period of study assured that the variable subject of study is statistically represented in an optimal way. 



Cindy has a jar of mixed nuts. There are two pecans, three peanuts, and one cashew in the jar. Cindy grabs two nuts and gives them to her friend, Paul, and he eats them. What is the probability of Paul eating a cashew and a pecan?


A. 1/18

B. 1/15

C. 2/11

D. 1/4

Answers

the answer would have to be D 1/4

Which of the values in the set {2, 3, 4, 5} is a solution to the equation 2x + 4 = 10?

A. 2
B. 3
C. 4
D. 5

Answers

 The Answer is 3
2(3)+4=10
6+4=10
10=10

Answer:

Your answer would be B!

Step-by-step explanation:

I took the test myself just now and got it right <3

Pedro’s Father is building a shed how many square feet of wood are needed

Answers

I can't see the figure entirely. To solve for the perimeter you need to know the height!
Use the formula for the triangle A= 1/2bh
For the rectangle A= lw
Use the formulas and add the answer you got for both formulas. Remember b stands for base, h stands for height, l stands for length, and w stands for width. When the when the “letters” are next to each other, like bh, that means to multiply.
The answer should be 2 _ _ ft squared
Try to figure out what the other two missing numbers are! The answer begins with 2, good luck!

A bag contains 10 identical balls numbered from 1 to 10. What is the probability that a person reaches into the bag and randomly selects a ball with a number that is even?

Answers

1 out of every 2 draws
The answer to your question would be 50%, due to the reason that 2,4,6,8,10 are all even. Which means 1,3,5,7,9 are odd. The problem is 5/10 or 1/2, which would equal up to 50%. 

Jade is making a square birthday card and she's going to put a ribbon borders on each of the 4 equal sides piece of ribbon that is 33 inches long do you have all of the ribbon how many inches of ribbon conget put on all
equals side

Answers

8 inches can cover each side
(she will have 1 inch left)

Final answer:

Jade can use 8.25 inches of ribbon on each side of her square birthday card by dividing the total ribbon length of 33 inches by the number of sides, which is 4.

Explanation:

Jade is making a square birthday card and wants to put ribbon borders on each of the 4 equal sides using a piece of ribbon that is 33 inches long. To determine how much ribbon can be put on each side, we divide the total length of the ribbon by the number of sides of the square. Since a square has four sides, we divide 33 inches by 4.

33 inches ÷ 4 sides = 8.25 inches per side

Therefore, Jade can put 8.25 inches of ribbon on each side of the birthday card.

A rhombus has diagonals 500 yd and 800 yd in length. Find the area in square miles.

Answers

1 mile = 1760 yd, so your area is ...
  A = (1/2)×d₁×d₂
  A = (1/2)×(500/1760)×(800/1760) mi²
  A = 125/1936 mi²
  A ≈ 0.0645661 mi²

Parker bought 4 times as many marbles as Molly.Cole bought 5 fewer marbles than Parker. If Molly bought p marbles how many did Cole buy?

Answers

4x-5m is the answer. 

convert: 7 tons 500 lb to lb

Answers

7 tons 500 lb equals 14500 lbs

Final answer:

7 tons and 500 pounds equals 14,500 pounds, which is calculated by converting tons to pounds and adding the additional pounds.

Explanation:

To convert 7 tons and 500 pounds to pounds only, follow these two steps:

Convert tons to pounds. Since 1 ton is equal to 2,000 pounds, you multiply the number of tons by 2,000. For 7 tons, it would be 7 × 2,000 = 14,000 pounds.

Add the additional pounds to the converted weight. So, you would add 500 pounds to 14,000 pounds, resulting in 14,500 pounds.

Therefore, 7 tons and 500 pounds is equivalent to 14,500 pounds.

A dice is rolled and a marble is selected at random from a bag with 2 red marbles, 2 green marbles, 2 yellow marbles, 1 purple marble and 1 blue marble. Find the P(odd and not green).

Answers

1/3 times 6/8

1/3 times 3/4

So, the answer is 3/12

Simplify: 1/4

Simplify the expression. (3.14×107)×(1.3×10−3)÷0.2
Scientific notation PLS!

Answers


[tex]3.14 \times 107 = 335.98[/tex]
[tex](335.98) \times (1.3 \times 10 - 3) \div 0.2[/tex]
[tex]1.3 \times 10 = 13 - 3 = 10[/tex]
[tex](335.98) \times (10) \div 0.2[/tex]
[tex]335.98 \times 10 = 3359.8[/tex]
[tex]3359.8 \div 0.2 = 16799[/tex]
[tex]1.6799 \times {10}^{4} [/tex]


2. Basketball Players:
Find the Measures of Center and Variability for Basketball Players Heights.
Mean:

Mode:

Median:

Range:


3. a. How many of the 10 basketball players are shorter than the tallest field hockey player?

b. List the heights that overlap in the dot plot?


Answers

2.Mean:72.1
Mode: 72
Median: 72
Range: 7
3a. 2 players
3b. 68, 69 inches

2. Adding all the heights together yields 721. divide it by the number of players (10) for the mean of 72.1. 
72 appears the most at 4 times so it is the mode.
The median with the values ordered 72 is the middle number.
The maximum of 75 minus the minimum of 68 gives a range of 7.

3a. there are two dots that are smaller then the tallest hockey player, b. those dots are at 68 and 69 inches in the dot plot

If the mean of a symmetrical distribution is 42, which of these values could be the median of the distribution?

Answers

In a symmetrical distribution (eg: normal distribution), the mean and median are the same value at the very center of the distribution. If the mean is 42, then so is the median.

Answer: 42

Answer:

42

Step-by-step explanation:

The median of a distribution is the exact center of the distribution, you start taking out numbers equally from the outside to the center, and eventually you will find the median, in a symmetrical distribution that means that there are the same number of values to the sides of the median, and the mean of a symmetrical distribution is always going to be equal to the median, so in this case the median and the mean would be the same, 42.

write and solve an inequality to represent the situation

Answers

You can use the inequality:

9.5 + 3.75e < 25

9.5 is for the necklace, 3.75e is for every earring, and 25 is the amount Dani wants to stay under. Make everything she spends less than, <, 25.

At a fair, each person can spin two wheels of chance. The fist wheel has numbers 1,2, and 3. The second wheel has the letters A and B. (A) list all the possible outcomes of the computed event. (B) if you spin both wheels, what is the probability that you get either a 1 or an A? Explain.

Answers

The answer to Part (B) is 4/6

(a) There are 3 numbers on the fist well and 2 letters on the second, so number of possible outcomes = 3*2 = 6 possible outcomes

The possible outcomes are 1A, 2A, 3A, 1B, 2B, 3B

So in total there are 6 possible outcomes as shown above if a person can spin the two wheels

(b) From possible outcomes A or 1 can appear four times namely: 1A,2A,3A and 1B

So probability is number of successes/ total number = 4/6

picking a month of the year in the day of the week (fundamental counting principle)

Answers

Since you mentioned the fundamental counting principle, I assume you are looking for the total number of possibilities.

If you are picking a month, there are 12 options.
If you are selecting a day of the week, there are 7 options.

If you are doing both, you multiply the two numbers together.
12 x 7 = 84

Using the fundamental counting principle to pick a month of the year in the day of a week would give 84 combinations.

How to find the number of combinations ?

The Fundamental Counting Principle is a concept in combinatorics that helps you calculate the total number of possible outcomes when you have multiple independent choices or events.

Choices for the Month: There are 12 months in a year. So, you have 12 choices for the month.

Choices for the Day of the Week: There are 7 days in a week

To find the total number of possible combinations of a month and a day of the week, you simply multiply the number of choices for each event:

Total Number of Combinations = Number of Choices for Month x Number of Choices for Day of the Week

Total Number of Combinations = 12 months x 7 days

= 84 combinations

In conclusion, there are 84 different combinations of selecting a month of the year and a day of the week using the Fundamental Counting Principle.

what's the radius of a circle with an area of 64 square feet?

Answers

Area = [tex] \pi r ^{2} [/tex]
64 = [tex] \pi r ^{2} [/tex]
[tex] \frac{64}{ \pi } =r^2[/tex]
[tex]r= \frac{ \sqrt{64} }{ \sqrt{ \pi } } = \frac{8}{ \sqrt{ \pi } } [/tex]

If you want the denominator rationalized, the answer is [tex] \frac{8 \sqrt{ \pi } }{ \pi } [/tex]

If a function is odd, then which statement is true?

Answers

By definition, a function is odd if f(-x) = -f(x) for all x in the domain. The answer is choice C

Side note: a function is even if f(-x) = f(x) for all x in the domain

Ken's cafe serves hot cocoa.each serving has 9 grams of chocolate.how many grams of chocolate are in 8 servings of hot cocoa?

Answers

multiply 9 * 8

answer = 72 grams

a rectangular box has a volume of 480 cubic inches. The height of the box is 5 inches. The ratio of the length of the box to the width of the box is 3 to 2. What is the measure of the width of the box?

Answers

W^2= 64
take sqrt
W= 8
plug value of W
L=3W/2
L=3*8/2
L=12
L=12, W= 8 , H =5
CHECK
12*8*5= 480 cu.inches

The coordinate plane represents a map. Each grid unit represents 20 miles. A retail company has a warehouse at N(40, 60). A store is located at P(40, −30). How long will it take a truck driving at 50 miles per hour to drive from warehouse N to this store?

Answers

The truck will take 36 hours to travel from warehouse N to store P.

To calculate the time it will take for a truck to travel from warehouse N to store P, we need to first determine the distance between the two points in the coordinate plane. Since each grid unit represents 20 miles, we will use the coordinates of N(40, 60) and P(40, -30) to calculate the distance in grid units and then convert that into miles. The two points share the same x-coordinate, so the truck is only traveling in the north-south direction. By subtracting the y-coordinate of P from that of N, we find that the two points are 90 grid units apart in the y-direction (60 - (-30) = 90). After converting the grid units into miles by multiplying by 20, the total distance is 90
20 miles = 1800 miles.

The truck drives at a speed of 50 miles per hour, so we divide the total distance by the truck's speed to find the time it takes to travel from N to P:
1800 miles / 50 miles per hour = 36 hours.

the school cafeteria served 125.6 liters of milk on Monday and 5.34 more liters of milk on Tuesday than on monday.how many total liters of milk were served on Monday and Tuesday

Answers

The total amount will be
  total = (125.6 L) + ((125.6 +5.34) L) = (2*125.6 +5.34) L
  total = 256.54 L
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