URGENT!! The passing yards for the top 5 quarterbacks in the country are 3,832, 3,779, 3,655, 3,642, and 3,579. Find the variance and standard deviation. Round to the nearest hundredth.
(EXPLAIN WORK)

Answer:

15 inches

Step-by-step explanation:

The formula for the circumference of a circle of radius R is 2*Pi*R.  Similarly, the volume of a ball enclosed by a sphere of radius R is (4/3)*Pi*R3. And the formula for the surface area of a sphere of radius R is 4*Pi*R2. And, you can check that the latter is the derivative of the former with respect to R.

Answer:

15 inches

Step-by-step explanation:

SA=4PIR^

900PI=4PIR^2

R^2=900PI/4PI

R^2=225

R=SQRT225

R=15 IN.

PROOF:

900PI=4PI^15^2

900PI=4PI*225

900PI=900PI

Answer:

x= 2.2​

Step-by-step explanation:

-0.45х + 0.33 = -0.66

Subtract .33 from each side

-0.45х + 0.33-.33 = -0.66-.33

-.45x = -.99

Divide each side by -.45

-.45x/.-45 = -.99/.-45

x =2.2

Answer:

Step-by-step explanation:

Angles (2x + 14)° and (x + 7)° are complementary angles.

If two angles are complementary, then they add up to 90°.

Therefore we have the equation:

(2x + 14) + (x + 7) = 90      combine like terms

(2x + x) + (14 + 7) = 90

3x + 21 = 90          subtract 21 from both sides

3x = 69          divide both sides by 3

x = 23

Answer:

A. y - 7 = -4(x + 2)

Step-by-step explanation:

Insert the coordinates into the formula with their CORRECT signs. Remember, in the Point-Slope Formula, y - y₁ = m(x - x₁), all the negative symbols give the OPPOSITE term of what they really are. In addition, I recall that perpendicular lines have OPPOSITE MULTIPLICATIVE INVERSE [RECIPROCAL] rate of changes [slopes], so -4 really should be replaced with ¼, but if your assignment says otherwise, then this is the answer.

To find the equation of a line perpendicular to y=-4x -1 that passes through (-2, 7), we take the negative reciprocal of -4 to find the slope of the perpendicular line. Plugging in the values (-2, 7) and 1/4 for the slope, we get the equation y - 7 = 1/4(x + 2). Therefore, the correct answer is A. y - 7 = -4(x + 2).

To find the equation of a line perpendicular to a given line, we need to determine the slope of the perpendicular line. The given equation is in the form y = mx + b, where m represents the slope. The slope of the given line is -4. To find the slope of the perpendicular line, we take the negative reciprocal of -4, which is 1/4. Now that we have the slope, we can use the point-slope form of a linear equation, which is y - y1 = m(x - x1), where (x1, y1) is a point on the line. Plugging in the values (-2, 7) for (x1, y1) and 1/4 for the slope, we get the equation y - 7 = 1/4(x + 2). Therefore, the correct answer is A. y - 7 = -4(x + 2).

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The ratio of time on vacation to time working as a fraction in lowest terms when working 24 weeks and rewarded with 3 days of vacation is 1/56.

If you spent 24 weeks working on a project for your job and were rewarded with 3 days of vacation, the ratio of time on vacation to time working as a fraction in lowest terms can be calculated as follows:

Final answer:

The student missed the conversion from minutes to hours. The correct conversion is 26 hours × 60 minutes/hour × 60 seconds/minute, which equals 93,600 seconds.

Explanation:

Identifying the Missed Conversion Step

The student was attempting to convert 26 hours into seconds but arrived at an incorrect result of 1560 seconds. The error occurred because the student skipped the correct conversion ratio between minutes and hours. For such conversions, it is essential to use the correct conversion factors: 60 minutes per hour and 60 seconds per minute.

Correct Conversion Process

To convert 26 hours to seconds:

First, convert hours to minutes: 26 hours × 60 minutes/hour = 1560 minutes.

Then, convert minutes to seconds: 1560 minutes × 60 seconds/minute = 93,600 seconds.

Therefore, the correct number of seconds in 26 hours is 93,600 seconds.

Answer:

-1,3,5,9,13

Step-by-step explanation:

2(-3)+5=-6+5=-1

2(-1)+5=-2+5=3

2(0)+5=0+5=5

2(2)+5=4+5=9

2(4)+5=8+5=13

Complementary means they add to 90°

f=90-g

f=4g

4g =90-g

5g=90

g=18

f=4g=4(18)=72

Answer: f=72°, g=18°

Answer: [tex]\triangle{ZXY}\sim\triangle{QRS}[/tex]

Step-by-step explanation:

in the given picture , we have two triangles ΔXYZ and ΔRSQ, in which

[tex]\overline{XY}=14=4\times3.5=4\times\overline{RS}[/tex]

[tex]\overline{YZ}=16=4\times4=4\times\overline{SQ}[/tex]

[tex]\overline{ZX}=12=4\times3=4\times\overline{SR}[/tex]

i.e. [tex]\dfrac{XY}{RS}=\dfrac{YZ}{SQ}=\dfrac{ZX}{QR}=\dfrac{4}{1}[/tex]

By SSS-similarity postulate, we get

[tex]\triangle{ZXY}\sim\triangle{QRS}[/tex]

SSS-similarity postulate says that if the lengths of the corresponding sides of two triangles are proportional, then the triangles must be similar

Answer:

xy(x+8)(x^2-6y)

Step-by-step explanation:

To long to explain, but you can just google it if you just need the answer

Answer:

xy(x^2 - 6y)(x + 8 ) .

Step-by-step explanation:

The Greatest Common Factor of this expression is:

 xy so dividing by this:

= xy(x^3 + 8x^2  - 6xy - 48y).

Factoring the expression in the parentheses by grouping:

= xy [ x^2( x + 8) - 6y (x + 8)]

= xy(x^2 - 6y)(x + 8 )  (answer).

Answer:

In the photos

Step-by-step explanation:

First, create your trees (following instructions on the photo you attached). Then, circle the prime numbers in each tree you made. If the prime number shows up once put that number once on your prime factorization. If the prime number appears multiple times, put the number down and have an exponent (the exponent is determined by how many times that number appears).

Hope this helps a bit,

Flips

Answer:

9 rows, each having 3 tomato plants, 5 bean plants, and 6 carrot plants.

Step-by-step explanation:

This requires the GCF, or the greatest common factor. This means that you need the largest whole number that divides evenly into each of the numbers (27, 45, and 54).

27, 45, and 54 can all be divided by 9 to get a whole number.

27/9=3

45/9=5

54/9=6

This means that in each row, there will be 3 tomato plants, 5 bean plants, and 6 carrot plants.

Answer:

B. [tex]x=3,\ y=20,\ z=-14[/tex]

Step-by-step explanation:

Consider the system of three equations:

[tex]\left\{\begin{array}{l}2x+2y+3z=4\\5x+3y+5z=5\\3x+4y+6z=5\end{array}\right.[/tex]

Multiply the first equation by 5, the second equation by 2 and subtract them:

[tex]\left\{\begin{array}{r}2x+2y+3z=4\\4y+5z=10\\3x+4y+6z=5\end{array}\right.[/tex]

Multiply the first equation by 3, the second equation by 2 and subtract them:

[tex]\left\{\begin{array}{r}2x+2y+3z=4\\4y+5z=10\\-2y-3z=2\end{array}\right.[/tex]

Multiply the third equation by 2 and add the second and the third equations:

[tex]\left\{\begin{array}{r}2x+2y+3z=4\\4y+5z=10\\-z=14\end{array}\right.[/tex]

Fro mthe third equation

[tex]z=-14[/tex]

Substitute it into the second equation:

[tex]4y+5\cdot (-14)=10\\ \\4y=10+70\\ \\ 4y=80\\ \\y=20[/tex]

Substitute y=20 and z=-14 into the first equation:

[tex]2x+2\cdot 20+3\cdot (-14)=4\\ \\2x+40-42=4\\ \\2x-2=4\\ \\2x=6\\ \\x=3[/tex]

The solution is

[tex]x=3,\ y=20,\ z=-14[/tex]

The other endpoint V of the line segment is found by doubling the coordinates of the midpoint M and subtracting the coordinates of the known endpoint W. Applying this method, the coordinates of V are (10, 10).

In Mathematics, the midpoint formula allows us to find the midpoint coordinates of a line segment. Given that M(9, 8) is the midpoint and W(8, 6) is one endpoint, you can find the coordinates of the other endpoint V using the formula:
V = (2M - W).

So, simply double the coordinates of the midpoint and subtract the coordinates of the known endpoint. This determines the coordinates of the other endpoint. For the given question, we apply this to get:

Vx = 2*9 - 8 = 10,
Vy = 2*8 - 6 = 10.

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For this case we have the following equation:

[tex]3 (b + 4) + 8 = -3[/tex]

If we apply distributive property to the terms within the parenthesis we have:

[tex]3b + 12 + 8 = -3[/tex]

We add similar terms to the left side of the equation:

[tex]3b + 20 = -3[/tex]

Subtracting 20 from both sides of the equation:

[tex]3b = -3-20\\3b = -23[/tex]

Dividing between 3 on both sides of the equation:

[tex]b = - \frac {23} {3}[/tex]

In mixed number we have:

[tex]b = -7 \frac {2} {3}[/tex]

Answer:

[tex]b = -7 \frac {2} {3}[/tex]

Answer:

Simplified to -281250

Step-by-step explanation:

By applying the principle of inclusion-exclusion and considering students in History, we find that 3 students are in neither Math Competition classes nor Geometry.

To determine how many students are in neither Math Competition classes nor Geometry, we can use the principle of inclusion-exclusion. We have 50 students in total, with 25 in Math Competition classes and 29 in Geometry. However, since 19 students are in both classes, they were counted twice when we added the students in Math Competition classes and Geometry together. Thus, we subtract the number of students in both to avoid double-counting:
(25 + 29 - 19) = 35 students are in at least one of the math classes. Additionally, 12 students are in a History class and no math classes. Therefore, the number of students in at least one class (math or history) is 35 + 12 = 47.

Finally, to find the number of students in neither class, we subtract the number of students in at least one class from the total number of students:
50 - 47 = 3 students are in neither Math Competition classes nor Geometry.

Answer:

The difference in volume is that the prism's volume is 3 times greater than the pyramid's volume.

Without seeing the graph, I can't tell what the slope is, but depending on the way the graph is drawn, the slope should be 1/3 or 3.

Answer:

The answer is 1/3

Answer:

9

Step-by-step explanation:

(5)+4=9

The missing output value is:

                             9

The function in terms of the variable x, where x represents  the input value is given by the formula:

                [tex]F(x)=x+4[/tex]

where F(x) is the output value corresponding to the input value x.

We are asked to find the missing output value i.e. we are asked to find the value of F(x) at x=5.

i.e. we have:

[tex]F(5)=5+4\\\\i.e.\\\\F(5)=9[/tex]

          Hence, the missing output value is: 9

Answer:

$6240

Step-by-step explanation:

Find the rate by dividing property tax by the appraisal value.

[tex]\frac{3840}{160000}=0.024[/tex]

Now multiply the appraised value by this rate to find the property tax.

[tex]260000*0.024=6240[/tex]

The property tax on a home appraised at $260,000 is $6,240.

To find the property tax on a home appraised at $260,000, we can set up a proportion using the given information. The property tax on a $160,000 home is $3,840, so we have:

$160,000 : $3,840 = $260,000 : x

Using cross-multiplication, we can solve for x:

x = ($260,000 * $3,840) / $160,000

Calculating this, we find that the property tax on a home appraised at $260,000 is $6,240.

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Kasey has $53.63 withheld from her weekly paycheck of $865 for Social Security, which is calculated by multiplying her weekly pay by the Social Security tax rate of 6.2%.

The question asks us to calculate how much is withheld from Kasey's paycheck for Social Security.

With a weekly pay of $865, we need to find 6.2% of that amount since that is the percentage deducted for Social Security taxes.

To find this amount, we multiply $865 by 0.062.

Calculation: $865 × 0.062 = $53.63

Therefore, $53.63 is withheld from Kasey's paycheck each week for Social Security.

Answer:

$20(.85)(1.06) = $18.02

Answer:

4√7/5

Step-by-step explanation:

3×√7/5-√28/5+√63/5

3√7/5-2√7/5+3√7/5

4√7/5

The simplified value of [tex]\frac{3\sqrt{7} }{25} -\frac{\sqrt{28} }{25} +\frac{\sqrt{63} }{25}[/tex] will be [tex]\frac{4\sqrt{7}}{25}[/tex].

System of equations is a finite set of equations for which common solutions are sought.

We have,

[tex]\frac{3\sqrt{7} }{25} -\frac{\sqrt{28} }{25} +\frac{\sqrt{63} }{25}[/tex]

Now,

Take LCM, of the given fraction,

We get,

[tex]\frac{3\sqrt{7} -\sqrt{28}+\sqrt{63}}{25}[/tex]

Now,

Simplify by rewriting every number in numerator in form of [tex]\sqrt{7}[/tex],

i.e.

[tex]\frac{3\sqrt{7} -\sqrt{4*7}+\sqrt{9*7}}{25}[/tex]

Now,

[tex]\frac{3\sqrt{7} -2\sqrt{7}+3\sqrt{7}}{25}[/tex]

Now,

Every digit is in the form of  [tex]\sqrt{7}[/tex],

So,

Simplify,

We get,

[tex]=\frac{4\sqrt{7}}{25}[/tex]

So,

This is the simplified form of the given equation.

Hence, we can say that the simplified value of [tex]\frac{3\sqrt{7} }{25} -\frac{\sqrt{28} }{25} +\frac{\sqrt{63} }{25}[/tex] will be [tex]\frac{4\sqrt{7}}{25}[/tex].

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Answer:

f(1) = 24

Step-by-step explanation:

f(1) is the value of f(x) when x = 1, that is from the table

f(1) = 24

Answer:

Step-by-step explanation: I believe you would just take 147 + 224 + 175 + 273 = 819pi cm2

So your answer would be 819pi cm2

The answer is 224 pi

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

Answer:

B

Step-by-step explanation:

f(0) - f(-3) = area under f'(x) from x=0 to x=3.

We can find the area under f'(x) in this interval by finding the area of the triangle formed by the line.

A = 1/2 b h

A = 1/2 (3) (3)

A = 4.5

f(0) - f(-3) = 4.5

Since f(0) = 7:

7 - f(-3) = 4.5

f(-3) = 7 - 4.5

f(-3) = 2.5

Answer:

[tex]\large\boxed{x=-\dfrac{2}{3}\ or\ x=1}[/tex]

Step-by-step explanation:

[tex]3x^2-x-2=0\\\\3x^2+2x-3x-2=0\\\\x(3x+2)-1(3x+2)=0\\\\(3x+2)(x-1)=0\iff3x+2=0\ \vee\ x-1=0\\\\3x+2=0\qquad\text{subtract 2 from both sides}\\3x=-2\qquad\text{divide both sides by 3}\\x=-\dfrac{2}{3}\\\\x-1=0\qquad\text{add 1 to both sides}\\x=1[/tex]

Answer:

296 inches

Step-by-step explanation:

The perimeter is the sum of sides of a rectangle

As the length is in feet while the width is in inches, a unit conversion must take place

As 1  feet  equals to 12 inches

9 feet would be equal to 12*9=108 inches

The perimeter of a rectangle= 2(width)(length)

= 2(108)(40)

=296 inches

Answer:

f(5) = 17

Step-by-step explanation:

f(x) = 3x+2

Let x =5

f(5) = 3(5) +2

f(5) = 15+2

f(5) = 17