When using pi, do you use 3.14 or 3.141592653?

Rounded to the nearest whole number, approximately 5 students must attend summer school for U.S. history.

Here, we have,

To determine the number of students who must attend summer school for U.S. history, we need to calculate the proportion of students who earned a grade less than or equal to 62.9.

First, we need to standardize the cutoff grade using the z-score formula:

z = (x - μ) / σ

Where:

x is the cutoff grade (62.9 in this case)

μ is the mean grade (79)

σ is the standard deviation (7)

Substituting the values into the formula:

z = (62.9 - 79) / 7

z ≈ -2.3

Next, we need to find the proportion of students with a z-score less than -2.3 using a standard normal distribution table or calculator. The corresponding proportion is approximately 0.0107.

To find the number of students who must attend summer school, we multiply this proportion by the total number of students:

Number of students attending summer school = 0.0107 * 440

Number of students attending summer school ≈ 4.7

Rounded to the nearest whole number, approximately 5 students must attend summer school for U.S. history.

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Final answer:

By calculating the Z-score for a grade of 62.9 and consulting a Z-table, approximately 4 students out of 440 at Thomas Paine high school must attend summer school for U.S. history.

Explanation:

To find out how many students at Thomas Paine high school must attend summer school for U.S. history based on their grades, we'll use the properties of the normal distribution. The distribution of grades is normally distributed with a mean of 79 and a standard deviation of 7. We are interested in the students scoring less than or equal to 62.9.

First, we need to calculate the Z-score for a grade of 62.9, which indicates how many standard deviations an element is from the mean. The Z-score is calculated as follows: (X - mean) / standard deviation, where X is the grade. For a grade of 62.9, Z = (62.9 - 79) / 7 = -2.3.

Next, we consult a Z-table to find the proportion of students scoring this Z-score or lower. A Z-score of -2.3 corresponds to approximately 1.01% of the distribution.

Finally, to find the number of students, we multiply this proportion by the total number of students taking U.S. history, which is 440. Therefore, roughly 0.0101 * 440 = 4.44, which when rounded to the nearest whole number, results in 4 students needing to attend summer school for U.S. history.

Answer:

I might be wrong but i think it is 90 Degree Angle

Step-by-step explanation:

Answer:

right triangle

Step-by-step explanation:

90 degrees is a right angle so it will be a right triangle

Answer:

False, it's a whole number.

Step-by-step explanation:

Final answer:

After 20 years, the amount in the account with an initial deposit of $7,000 at a 2% interest rate compounded monthly would be $10,408.98.

Explanation:

To find the amount in the account after 20 years with no withdrawals, we use the formula for compound interest:

[tex]A = P(1 + \(\frac{r}{n}\))^nt[/tex]

Where:

A = the future value of the investment/loan, including interest

P = the principal investment amount ($7,000)

r = the annual interest rate (decimal) (2%, or 0.02)

n = the number of times that interest is compounded per year (monthly, so 12)

t = the number of years the money is invested or borrowed for (20 years).

Plugging in the values, we get:

[tex]A = 7000(1 + \(\frac{0.02}{12}\))^(12*20)[/tex]

After calculating the values inside the parentheses and raising them to the power of 240 (12 times 20), we find:

A = 7000(1 + 0.00166667)^240

A = 7000(1.00166667)^240

A = 7000 * 1.48685385

A = $10,408.98

Therefore, after 20 years, the amount in the account would be $10,408.98 with no withdrawals, given a 2% interest rate compounded monthly.

When an exponent is multiplied directly into another exponent, you multiply the exponents.

For example:

[tex](x^{2})^5=x^{2(5)}=x^{10}[/tex]

[tex](x^{4})^3=x^{4(3)}=x^{12}[/tex]

[tex](x^{3}y^{2} )^2=x^{3(2)}y^{2(2)}=x^6y^4[/tex]

When an exponent is negative, you move it to the other side of the fraction to make the exponent positive.

For example:

[tex]x^{-2}[/tex] or [tex]\frac{x^{-2}}{1} =\frac{1}{x^2}[/tex]

[tex]\frac{1}{y^{-3}} =\frac{y^3}{1}[/tex] or y³

[tex](p^{10} r^{-5})^{\frac{1}{5}}=p^{10(\frac{1}{5})}r^{-5(\frac{1}{5})}=p^{\frac{10}{5}} r^{\frac{-5}{5}}=p^2r^{-1}=\frac{p^2}{r^1}=\frac{p^2}{r}[/tex]

Answer:

84 people

Step-by-step explanation:

Since 30% of the people came from Germany then 84 people came from Germany.

On a flight from London with 280 passengers, 30% of the passengers, or 84 passengers, came from Germany.

To find out how many passengers came from Germany, we need to calculate 30% of the total number of passengers. Given that there were 280 passengers in total, we can find the number of passengers from Germany by multiplying 280 by 30/100:

Number of passengers from Germany = 280 × 30/100
= 84

Therefore, 84 passengers came from Germany on the flight from London.

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Answer:

W = 10

L = 21

Step-by-step explanation:

Formula

P = 2*(L + W)

Givens

Solution

Answer

The width of the garden is 10 feet, and the length is 21 feet.

To find the dimensions of the rectangular garden, we can use the information provided in the question. Let's assume the width of the garden is 'x' feet. According to the question, the length is 1 foot more than twice the width, so the length would be '2x + 1' feet. Now, we can use the formula for the perimeter of a rectangle, which is 2(length + width), and set it equal to 62 feet:

2(2x + 1 + x) = 62

Simplifying the equation, we get:

6x + 2 = 62

Subtracting 2 from both sides:

6x = 60

Dividing both sides by 6:

x = 10

So, the width of the garden is 10 feet, and the length is 2x + 1 = 2(10) + 1 = 21 feet.

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Answer:

What do mean by equals 16?

Step-by-step explanation:

1/2x+8=16

1/2x=16-8

1/2x=8

x=8:1/2

x=8*2

x=16

Hope this helps! <3

Answer:

10.

Step-by-step explanation:

5 times 6 = 30

30-20

Answer:

Step-by-step explanation:-22

Final answer:

The box fits four cubical blocks with a side of 2 cm, so its volume is four times the volume of one block, which is 32 cm³.

Explanation:

Each cubical block has a side of 2 cm, and since only four blocks fit in the box completely without any space left, we can understand that the box accommodates exactly four cubes. To find the volume of one cube, we calculate the volume of a cube which is given by side³. Since the side is 2 cm, the volume of one cube is 2 cm * 2 cm * 2 cm = 8 cm³. Therefore, the box that fits exactly four of these cubes would have a volume which is four times the volume of one cube, which is 4 * 8 cm³ = 32 cm³. Hence, the volume of the box is 32 cm³, which corresponds to option B.

Answer:

[tex](3,3\frac{1}{5})[/tex]

Step-by-step explanation:

We use the formula;

[tex](\frac{mx_2+nx_1}{2},\frac{my_2+ny_1}{2})[/tex]

where m:n=2:3 and [tex]x_1=1,x_2=6,y_1=4,y_2=2[/tex]

We substitute these values to get;

[tex](\frac{2(6)+3(1)}{2+3},\frac{2(2)+3(4)}{2+3})[/tex]

We simplify to get:

[tex](\frac{15}{5},\frac{16}{5})[/tex]

[tex](3,3\frac{1}{5})[/tex]

Answer:

(3,16/5)

Step-by-step explanation:

(2)(6)+(3)(1)/(2+3),(2)(2)+(3)(4)/(2+3)=3,16/5

Answer:

thousands

hope it helps

Step-by-step explanation

Answer:

x + 2y = 0

Step-by-step explanation:

Answer:

Feline Flavor is less expensive per pound.

Step-by-step explanation:

A unit price has  a 1 in the denominator

To find the unit price, we take the price  and divide by the amount.

Kitty Kibbles:  $24 for 16 lbs

$24/16 = $1.50 per lb

Feline Flavor:  $11.20  for 8 lbs

$11.20 / 8 = $1.40 per lb

Feline Flavor is less expensive per pound.

The coefficient of 10x and the last term 16 is what we'll focus on. Specifically just the numbers only (ignore the variable x for now).

Think of two numbers that both multiply to 16, and also add to 10. Those two numbers are 8 and 2 (in any order). You basically find this through trial and error.

8 + 2 = 10

8 * 2 = 16

So it factors to (x+8)(x+2). Since order of multiplication does not matter, this is the same as (x+2)(x+8)

Answer b for both on edg

Step-by-step explanation:

Answer:

The equation for the radius of cone R in terms of the radius of cylinder (r) is,

R = r√3

Step-by-step explanation:

Volume of the cone = πR²H/3 (where Height is H and Radius is R)

Volume of the Cylinder = πr²h (where Height is h and Radius is r)

Now, both are same in height, so H = h and Their volume are same. So,

πR²H/3=πr²h

or, R²/3=r²

or, R²=r²×3

or, R = √(r²×3)

or, R = r√3

Answered by GAUTHMATH

Final answer:

The relationship between the volume of a cylinder and a cone with the same radius and height leads to the equation for the radius of the cone in terms of the cylinder's radius. By equating the volumes and simplifying, we find that the cone's radius R is equal to the square root of 3 times the cylinder's radius r, or R = √3 * r.

Explanation:

We start with the formula for the volume of a cylinder V = πr²h and the volume for a cone, which is a third of the cylinder's volume, V = ⅓πr²h. Since we are given that the volume of a cone equals the volume of a cylinder with the same radius and height, we can set up an equation to find the radius of the cone R in terms of the cylinder's radius r.

We know that the volume of the cone is one third the volume of the cylinder, so when they are equal, the cone must be larger to compensate for this ratio. Therefore, the volume equation becomes V = πR²h, where R is the radius of the cone and h is the height. To find R in terms of r, we equate the two volume formulas: πR²h = 3πr²h. Simplifying, we get R² = 3r² and hence, R = √3 * r.

Answer:

this is to help im not sure To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle. The area is measurement of the surface of a shape.

Step-by-step explanation:

Answer:

Step-by-step explanation: 2(12+20)= 44ft hope this helps :) correct me if I am wrong pls

Answer:  The answer is given below.

Step-by-step explanation:  As shown in the attached figure, the prism-shaped roof has equilateral triangular bases, one of which is ΔABC. We need to  create an equation that models the height of one of the roof's triangular bases in terms of its sides. Let ii be AD.

SEe the figure attached herewith, ΔABC forms an equilateral triangle, in which AD is the height. So, D will be the mid-point of BC and ∠ADB = ∠ADC = 90°.

Now, in ΔADB, we have

[tex]AD^2=AB^2-BD^2\\\\\\\Rightarrow AD^2=AB^2-\left(\dfrac{1}{2}AB^2\right)^2\\\\\\\Rightarrow AD^2=\dfrac{3}{4}AB^2\\\\\\\Rightarrow AD=\dfrac{\sqrt 3}{2}AB.[/tex]

Thus, with the help of this model, we can find the height of any one of the roof's triangular bases.

Answer:

Copy and Paste Version

ADsqaured = ABsquared - BDsquared

ADsqaured = ABsquared - (1/2AB squared) 2

AD squared = 3/4AB squared

AD = square root 3/2 AB

​Now we can find the height of any of the bases

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

5+(-1)+(-6)

We add from left to right

5+-1 = 5-1 = 4

4+ -6 = 4-6 =-2

Answer: I think the answer would be -2

Step-by-step explanation:

The equivalent value of the fraction is A = 83 / 4 = 20.75

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the numerator of the fraction be p

where the value of p = 83

Let the denominator of the fraction be q

where q = 4

Now , the fraction is A = p/q

On simplifying the expression , we get

So , the left hand side of the equation is equated to the right hand side by the value of p/q

A = 83 / 4

A = 20.75

On further simplification , we get

A = 20.75

Therefore , the value of A = 20.75

Hence , the expression is A = 20.75

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The ratio is 0.25:0.5

If he uses 1.5 cups of corn grits, the ratio is multiplied by 6.

So:

1.5 : 3.0

He will need 3 cups of water.

Method 1:

[tex]\begin{array}{ccc}\dfrac{1}{4}\ \text{cup of corn}&-&\dfrac{1}{2}\ \text{cup of water}\\\\1\dfrac{1}{2}=\dfrac{3}{2}\ \text{cup of corn}&-&x\ \text{cup of water}\end{array}\qquad\text{cross multiply}\\\\\\\dfrac{1}{4}\cdot x=\dfrac{3}{2}\cdot\dfrac{1}{2}\\\\\dfrac{1}{4}x=\dfrac{3}{4}\qquad\text{multiply both sides by 4}\\\\\boxed{x=3}[/tex]

Method 2:

[tex]\begin{matrix}\dfrac{1}{4}\ \text{cup of corn}&-&\dfrac{1}{2}\ \text{cup of water}&|\text{multiply both sides by 2}\\\\\dfrac{1}{2}\ \text{cup of corn}&-&1\ \text{cup of water}&|\text{multiply both sides by 2}\\\\1\ \text{cup of corn}&-&2\ \text{cup of water}&|\end{matrix}[/tex]

[tex]\begin{matrix}\left(\dfrac{1}{2}+1\right)\ \text{cups of corn}&-&(1+2)\ \text{cups of water}\\\\1\dfrac{1}{2}\ \text{cups of corn}&-&3\ \text{cups of water}\end{matrix}[/tex]

Answer:

1680 words

Step-by-step explanation:

560 / 20 = 28

28 x 60 = 1680

Answer:

1680 words.

Step-by-step explanation:

There are 60 minutes in an hour. So all you need to do it 560 + 560 + 560.

I say this because he types 560 word in 20 minutes..20+20+20 is 60 so that means you have to add 560, 3 times as well.

Hope this helped! :)

Answer:

[tex]y=-\frac{8}{3} x - 3[/tex]

Step-by-step explanation:

Slope-intercept form is y = mx + b.

You are given 8x + 3y = -9, so to convert this into slope-intercept form you would solve for y and rearrange the terms (if needed) to follow the format of mx + b.

Start by subtracting 8x from both sides of the equation.

3y = -9 - 8x

Divide both sides by 3 to isolate y.

y = -3 - 8/3x

Rearrange the terms so the "x" variable is first.

y = -8/3x - 3

Im not sure if this is right but.

Make the diameter by putting the line on points A and C. Then put the middle of the tool on point A and make the width to point C and draw a circle. Do the same for point B (other side of point A) without changing the width. Then plot the lines where the circles intersect and you have a hexagon :)

Answer:

there is one photo without the hexagon drawn out, and one with it drawn, so you can see it all. there's one small hexagon and one long one.

Translation of points involves shifting them along the coordinate plane. In this case, the points are translated 2 units left and 1 unit down. The translated points are Q'(-2, -2), D'(-4, 1), V'(0, 3), and J'(1, -1).

In mathematics, when we're asked to translate points by a certain amount, we are shifting them along the coordinate plane. Here, we are asked to translate points by 2 units left and 1 unit down. Here's how we do it:

So, the translated points are Q'(-2, -2), D'(-4, 1), V'(0, 3), and J'(1, -1).

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The correct free-body diagram representation of a body being pushed eastward by a force of four units and southward by a force of three units involves two force vectors: one pointing right with a length of 4 units, and the other pointing down with a length of 3 units.

The given problem encompasses the drawing of free-body diagrams and the application of vectors in Physics.

When a body is pushed eastward by a force of four units and southward by a force of three units, the correct way to represent this in a free-body diagram would be by drawing:

This corresponds to the option of two force vectors acting at a point, one pointing right with a length of 4 units and the other pointing down with a length of 3 units.

[tex]Use:\\\\a^n\cdot a^m=a^{n+m}\\\\y^{-9}\cdot y^{-8}\cdot y^{10}=y^{-9+(-8)+10}=y^{-7}[/tex]

Answer:

17.3

Step-by-step explanation:

tens  ones. tenths hundredths thousandths

1        7       .   2          5                    3

We are rounding to the nearest tenth

We are rounding the 2 so we look at the 5.  If it is 5 or above we round up.

Since it is, we will round the 2 to a 3

17.3

Answer:

892.85 miles for 22 days

Step-by-step explanation: