Guy decides to get in shape by running. The first day, he runs 1 mile in 12 minutes. Two months later he has decreased his mile time by 25%. What is his mile time now? 6 minutes 7.5 minutes 8 minutes 9 minutes

Answer:

V= 32340cm^3

A= 5082cm^2

Step-by-step explanation:

Solution is in the picture. The area of the base of cone is not counted

The formulas for volume and surface area largely depend on the type of solid. For a cylinder, the volume is computed by πR²h and the surface area is 2πr(h + r) where Pi (π) is 22/7. Apply these formulas using consistent units such as meters.

To compute the volume of a particular solid shape, you would first need to know the specific formula that applies to that shape. For example, the volume of a cylinder can be calculated using πR²h (where R is the radius, and h is the height), and the calculation would use the value 22/7 for Pi (π). The volume of a pillar segment where the cross-sectional area A is given and height h is known could be calculated by multiplying A by h.

Surface area calculations would also depend on the specific shape. The surface area of a cylinder, for example, is 2πr(h + r), with r as radius, h as height, and Pi as 22/7.

Without knowledge of the specific type of solid in question, more detailed steps cannot be provided. However, once the shape is identified, application of the right formulas with consistent units (such as meters) will yield both the volume and surface area of the solid.

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For the sake of showing work I will replace the empty space with an x like so...

[tex]\frac{9}{10} =\frac{90}{x}[/tex]

To find out what x is you must cross multiply (aka butterfly)

***Image of this step is attached below

9*x = 10*90

9x = 900

Next divide 9 to both sides to finish isolating x. Since 9 is being multiplied by x, division (the opposite of multiplication) will cancel 9 out (in this case it will make 9 one) from the left side and bring it over to the right side.

9x ÷ 9 = 900 ÷ 9

1x = 100

x = 100

To make these fractions equivalent the empty spot must be 100

[tex]\frac{9}{10} = \frac{90}{100}[/tex]

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

336 ft^2

Step-by-step explanation:

We are given the dimensions of a rectangle, length 24 feet and width 14 feet, and we are to find the area of this rectangle.

We know that the formula of area of rectangle is given by:

Area of a rectangle = l × w

Substituting the given values in the above formula to get:

Area of rectangle = 24 × 14 = 336 ft^2

Answer:

Area = 336 ft^2

Step-by-step explanation:

Given

Width of rectangle = w = 14 ft

Length of rectangle = l = 24 feet

The formula for finding the area of rectangle is:

Area = Length * width

It can also be denoted as:

A = l*w

Putting the given values of length and width, the area of given rectangle will be:

A = 24 ft * 14 ft

A = 336 ft^2

So, the area of given rectangle is 336 ft^2 ..

Answer: c. getting heads on a coin toss and rolling a 5 on a die

Step-by-step explanation:

Answer:

C. Distributive property

Step-by-step explanation:

The options to your question can be found in the image below.

the correct option is C. Distributive property

(to clear the parenthesis)

(–2) + 5(x – 3) – 4x(6 + 1)

= -2 + 5x -15 -24x -4x

= -17 +5x -28x

= -23x -17

Answer:

Vertical= 61.43 miles

Horizontal=43.02 miles

Step-by-step explanation:

We use the trigonometric ratios for a right angled triangle to calculate the components.

The vertical is the adjacent while the horizontal is the opposite.

The vertical is calculated as follows:

V= 75 Cos 35° =61.43 Miles

The magnitude of the horizontal H is calculated as follows:

H= 75 Sin 35° = 43.02 miles

Final answer:

Using trigonometric functions, the horizontal component of the ship's journey is found to be 61.44 miles to the east, and the vertical component is 43.02 miles to the north.

Explanation:

A ship leaving port sails for 75 miles in a direct 35° north of due east. To find the magnitude of the vertical and horizontal components, one can use trigonometric functions based on the angle provided. The horizontal (east) component can be found using the cosine function, and the vertical (north) component can be calculated using the sine function.

To calculate the horizontal (east) component: Horizontal Component = 75 miles * cos(35°) = 75 * 0.8192 = 61.44 miles.

To calculate the vertical (north) component: Vertical Component = 75 miles * sin(35°) = 75 * 0.5736 = 43.02 miles.

Therefore, the ship’s vertical component of movement is 43.02 miles to the north, and the horizontal component is 61.44 miles to the east.

Answer:x=12

Step-by-step explanation:

5x+9-3x=18+15

First of all, in the case of a equation that has one vatiable having one power ,you need to bring all the variable together in one side.

5x-3x=18+15-9

0r,2x=18+6

Or,2x=24

Or,x=24/2

Or,x=12

So it's the solution..

To solve the equation 5x + 9 - 3x = 18 + 15, you simplify both sides of the equation to get 2x + 9 = 33. Then, you isolate x by subtracting 9 from both sides to get 2x = 24, and further divide by 2 to get x = 12. Therefore, x = 12 is the solution.

The question requires the solution for the equation 5x + 9 - 3x = 18 + 15. To start solving this, first simplify both sides of the equation. The left side simplifies to 5x - 3x + 9, which equals 2x + 9. The right side simplifies to 18 + 15, which equals 33.

So, 2x + 9 = 33. To isolate x, subtract 9 from both sides of the equation, and you'll get 2x = 24. Then divide both sides by 2, and you'll get x = 12.

This means that the solution to the equation 5x + 9 - 3x = 18 + 15 is x = 12.

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Your answer is going to be: 979,660

Answer:

If your equation is (2+2)x489829 then the answer is 1959316

hiwever if your equation is 2+2*489829 then your answer is 979,660

Step-by-step explanation:

Answer:

-23

Step-by-step explanation:

Your question asks to find what was the size of the population in 2017

In order to solve this problem, we're going to need to use the given information in the question in order to find the population in 2017.

Key information:

In 2010, population was 6500

In 2014, population increased by 10% from 2010

In 2017, population decreased by 6% from 2014.

With the information above, we can solve the problem.

We're going to start with 6500 as our starting population.

We know that the population increased by 10% in 2014, so we would multiply 6500 by 1.10.

[tex]6500*1.10=7,150[/tex]

The population in 2014 was 7,150.

We know that in 2017, the population decreased by 6% from the population in 2014. So we would find how much 6% is from 7,150 and then subtract that number.

[tex]7,150*.06=429\\\\7,150-429=6,721[/tex]

When you're done solving, you sohuld get 6,721.

The population in 2017 would be 6,721.

Answer:

6721

Step-by-step explanation:

the answer is 6721

Check the picture below.

so, two tangents to the same circle, whenever they meet outside the circle, they'll be congruent, namely, AB = AX and CB = CY and DX = DY.

well, we know AB = BC, and we know that AB = AX and CB = CY, therefore

AB = BC = AX = CY = 10.

an isosceles needs twin sides, well, we know DX = DY, and we know that AX = 10 then the triangle's side AD = AX + DX = 10 + DX.

the triangle's side of CD = CY + DY = 10 + DY.

but but but, we know DX and DY are tangents to a common circle meeting outside, so they're equal, so whatever length DX and DY are, is the same, so

10 + DY = 10 + DX

meaning the triangle's sides AX = CD, and for an isosceles, is all you need, twin sides.

The correct answer is 12

Set up a ratio and then solve. See paper attached. (:

Final answer:

H varies directly as L, and using the constant of direct variation from the given values (H=20 when L=50), we calculated the value of H to be 12 when L is 30.

Explanation:

The concept we are dealing with here is direct variation, which means we can set up a proportion based on the relationship that H varies directly as L. Given that H=20 when L=50, we can determine the constant of variation k by dividing H by L (H = k*L), which gives us k = 20/50 or k = 0.4. With the constant of variation, we can then find the value of H when L=30.

To do this, we use the formula for direct variation again with our constant k and the new value of L:

H = k * L = 0.4 * 30 = 12

Therefore, when L is 30, H is 12.

The average rate of change in f(x) over the interval [1, 5] is -1

Hi! Let me help you to understand this problem. Here we have the following function:

[tex]f(x) = 17-x[/tex]

We need to compute the Average Rate of Change (ARC) in [tex]f(x)[/tex] over the interval [tex][1, 5][/tex]. So what is the average rate of change of a function? In general, for a nonlinear graph whose slope changes at each point, the average rate of change between any two points [tex](x_{1},f(x_{1}) \ and \ (x_{2},f(x_{2})[/tex] is defined as the slope of that line through that two points. Here we have a linear function, so the average rate of change will be the slope of the line:

So:

[tex]ARC=m=-1[/tex]

This can also be calculated as:

[tex]ARC=\frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1}} \\ \\ ARC=\frac{17-5-(17-1)}{5-1} \\ \\ ARC=-1[/tex]

Answer:

2,085

Step-by-step explanation:

multiply 3 by 600 then 90 then 5 and then u add them all and u get ur answer

We must find the slope of the graph first, we can do this by finding two perfect points and inputting those points into the formula y2 - y1/x2 - x1

Perfect point #1: (0,1)

Perfect point #2: (2,5)

As mentioned above, input these numbers into our formula.

5-1 = 4

2 - 0 = 2

4/2 = 2

So, the slope of the graph is 2.

Now, we must find the y-intercept which can be found based on where the line intersects with the y-axis. As we can see, the line intersects at (0,1) therefore the y-intercept of the graph is 1.

We now form a linear equation:

y = 2x + 1

However, since this is linear equality graph we will replace the equal sign with an inequality symbol. The inequality symbol we can use is based on the direction of the shaded area. If shaded up, we use the "greater than symbol", if down then we use the "less than symbol".

The line also matters, if the line is dotted we use the normal inequality symbol, but if it is straight then we use one of the "equal to" inequality symbols.

As for our graph, we have a dotted line with the shaded area upwards. Therefore, we will be using the greater than symbol and not a "equal to" symbol.

So, our answer would be y > 2x + 1

Answer:

2(8-8x)

Step-by-step explanation:

Distrubutive Property:

   ↓

A(B+C)=AB+AC

Multiply by the numbers from left to right.

4*2=8

Therefore the correct answer is 2(8-8x).

Answer:

16 - 4x^4

Step-by-step explanation:

Assuming x4 means x^4 or x to the 4th power

2(8 - 2x^4)

Distribute the 2

2*8 - 2 * 2x^4

16 - 4x^4

Answer:

[tex]x=n \pi[/tex] or [tex]x=2\pi n+\frac{\pi}{2}[/tex]

Step-by-step explanation:

The given trigonometric equation is;

[tex]\sin x(\sin x-1)=0[/tex]

By the zero product property;

[tex]\sin x=0[/tex] or [tex]\sin x-1=0[/tex]

For [tex]\sin x=0[/tex], the general solution is [tex]x=n \pi[/tex]

[tex]\sin x-1=0[/tex], [tex]\sin x=1[/tex], the general solution is [tex]x=2\pi n+\frac{\pi}{2}[/tex]

Therefore the general solution is:

[tex]x=n \pi[/tex] or [tex]x=2\pi n+\frac{\pi}{2}[/tex]

The solutions to the equation sin(x)(sin(x)-1) = 0 are:

x = 0, π, 2π, 3π, π/2, 3π/2, 5π/2, and so on.

We have,

To solve the equation sin(x)(sin(x)-1) = 0, we can apply the zero-product property, which states that if a product of factors is equal to zero, then at least one of the factors must be equal to zero.

So, we set each factor equal to zero and solve for x:

sin(x) = 0

To find the solutions for this equation, we look for x values where the sine function equals zero.

The solutions are x = 0, π, 2π, 3π, and so on.

sin(x) - 1 = 0

Adding 1 to both sides:

sin(x) = 1

The solutions for this equation occur when the sine function equals 1, which happens at x = π/2, 3π/2, 5π/2, and so on.

Therefore,

The solutions to the equation sin(x)(sin(x)-1) = 0 are:

x = 0, π, 2π, 3π, π/2, 3π/2, 5π/2, and so on.

Learn more about equations here:

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The formula for perimeter is P = 2length + 2width (P = 2L + 2W)

You know that the length is 4 more yards then twice the width. In equation form this would be:

length = 4 + 2w

Plug what you know into the perimeter formula:

26 = 2(4 + 2w) + 2w

First you must distribute the 2 to the numbers inside the parentheses, which would be 4 and 2w...

26 = (2 * 4) + (2 * 2w) + 2w

26 = 8 + 4w + 2w

Now you must combine like terms. This means that first numbers with  the same variables (w) must be combined...

26 = 8 + 4w + 2w

4w + 2w = 6w

26 = 8 + 6w

Now bring 8 to the left side by subtracting 8 to both sides (what you do on one side you must do to the other). Since 8 is being added on the right side, subtraction (the opposite of addition) will cancel it out (make it zero) from the right side and bring it over to the left side.

26 - 8 = 8 - 8 + 6w

18 = 0 + 6w

18 = 6w

To isolate w divide 6 to both sides

18 / 6 = 6w / 6

w = 3

We know that the width is 3 ft

Now you must find the length. To do this plug 3 where you see w in the equation:

length = 4 + 2w

l = 4 + 2(3)

l = 4 + 6

l = 10

We know that length is 10 ft

Letter B. is the correct answer

Hope this helped!

~Just a girl in love with Shawn Mendes

The formula for surface area of a sphere is: A = 4 x PI x r^2

Replace r with the given radius and calculate the area:

Area = 4 x PI x 100^2

Area = 4 x PI x 10,000

Area = 40,000PI

Answer:

2x^2 - 7x - 2

Step-by-step explanation:

Write 2x2 - 11 first.  Please use " ^ " to indicate exponentiation:

 2x^2 - 11

Now change both signs of 7x - 9 and combine the result with 2x^2 - 11:

2x^2 - 11

   -7x  + 9

-------------------

2x^2 - 7x - 2   (answer)

Answer:

b on edge 2021

Step-by-step explanation:

Answer:

119, 23 - 38

16, 102 - 62

96, 51 - 33

28, 87 - 65

After matching each pair of angle with the remaining angle 1st pair - 38 degree-3rd option, 2nd pair - 62 degree -4th option,3rd pair -  65 degree- 2nd option,4th pair - 33 degree- 1st option

According to Angle sum property of a triangle, the sum of all the interior angles is equal to 180 degree.

It is given the question that

Four pairs of Angles are given , these pairs belong to a triangle and it is been asked to determine the third angle

Let the third angle is x for all the options

1. 119 degrees and 23 degrees

119+23+ x = 180

x = 38 degrees

2. 16 degrees and 102 degrees

16+102+x = 180

x = 62 degree

3. 28 degrees and 87 degrees

28+87 +x = 180

x = 65 degree

4. 96 degrees and 51 degrees

96 + 51+x = 180

x = 33 degree

Therefore the match is as follows

1st pair - 38 degree-3rd option

2nd pair - 62 degree -4th option

3rd pair -  65 degree- 2nd option

4th pair - 33 degree- 1st option

To know more about Angle Sum Property

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[tex]f(x-2)=3(x-2)-5=3x-6-5=3x-11[/tex]

Answer:

[tex] f ( x - 2 ) = 3 x - 1 1 [/tex]

Step-by-step explanation:

We are given the following function [tex] f ( x ) [/tex] and we are to find [tex] f ( x - 2 ) [/tex]:

To find [tex] f ( x - 2 ) [/tex], we would consider [tex] f ( x - 2 ) [/tex] as [tex] x [/tex] and substitute [tex] x - 2 [/tex] in place of [tex] x [/tex] so it would be:

[tex] f ( x - 2 ) = 3 ( x - 2 ) - 5 = 3 x - 6 - 5 = 3 x - 1 1 [/tex]

Answer:

4

Step-by-step explanation:

-3.5/-0.875 = 4

Answer:

The answer is 4 or C

Step-by-step explanation:

Since its a negative-negative equation, the result is a positive number. So take this equation as 3.5/0.875. Your result will be four or C. Hope this helps!

Answer:

x=0

Step-by-step explanation:

7x - 42x = 0

Combine like terms

-35x = 0

Divide each side by -35

-35x/-35 = 0/-35

x = 0

Answer:

X=6

X=0

Step-by-step explanation:

On aP Ex

Answer:

It is b.

Step-by-step explanation:

When x is negative x^5 will also be negative.

f(x) = x^5 - 3x^3 + 2x + 4

As x  --> -∞ x^5 will  be the main factor for f(x) --->  -∞ .

Similarly  x^5 will have the greatest influence when x ---> ∞, so f(x) ---> ∞.

Answer:

b

Step-by-step explanation:

The end behaviour is what happens when x gets larger and positive ( right hand end ) or larger and negative ( left hand end ) Tis is called the end behaviour as x → + ∞ and x → - ∞ respectively

For a polynomial the end behaviour is determined by the term of greatest degree.

For the given function

f(x) = [tex]x^{5}[/tex] - 3x³ + 2x + 4 ← degree 5 polynomial

The leading coefficient is positive

• Odd degree, positive leading coefficient, then

as x → - ∞, f(x) → - ∞

as x → + ∞, f(x) → + ∞

----------------------------------------------------------------------

• Odd degree, negative leading coefficient, then

as x → - ∞, f(x) → f(x) → + ∞

as x → + ∞, f(x) → - ∞

Answer:

16

Step-by-step explanation:

We use the completing square method to find make the expression a perfect square.

(b/2)²=ac where a and b are coefficients of x² and x respectively while c is a constant.

= (-8/2)²=16

We add 16 to both sides and the expression becomes a perfect square.

Answer:

(4x -3yi) (4x+3yi)

Step-by-step explanation:

We have a^2 + b^2

Over  the complex number, this is equal to

(a-bi) (a+bi)

(4x -3yi) (4x+3yi)

Answer:

(4x -3yi) (4x+3yi)

Step-by-step explanation:

The expression 16x^2 + 9y^2 is a sum of squares, and it can be factored over the complex numbers using the difference of squares formula:

a^2 + b^2 = (a + bi)(a - bi)

In your expression:

a = 4x

b = 3y

So, applying the difference of squares formula:

16x^2 + 9y^2 = (4x + 3yi)(4x - 3yi)

This is the factored form of the expression 16x^2 + 9y^2 over the complex numbers.

Answer:

There are 13 different ways to finish the race

Step-by-step explanation:

To identify the number of different ways to finish the race we should categorized the types of win:

1. Without tie: the ways that are possible in this option are defined by the rule of multiplicación. There are 3 participants and 3 places, there are 3 possibles participant that can occupy the first place, then 2 possibles participants that can occupy the second place and one participant that can occupy the last place.

       3               x          2                x          1                  =   6

first place              second place           third place

So, there are 6 different ways to win without tie.

2. Double tie in the second place: This time there are 3 participant that can occupy the first place and the other participant are going to occupy the second place. So there are only 3 ways in this option, every option is defined by the winner. that's mean: the winner is Alfred, or is Brandon or  is Charles.

3. Double tie in the first place: This option is like option 2, there are only 3 ways because every option is defined by the person that is in the second place. That's mean: the second place is occupy by Alfred, or by Brandon or by Charles.

4. All the participants end in tie: There are just one possibility in this option, all are the winners.

Finally there are 13 ways to end this race, 6 ways without tie, 3 ways with double tie in second place, 3 ways with double tie in first place and 1 way with all the participants in the same place.

Final answer:

Alfred, Brandon, and Charles can finish the race in 13 different ways, considering the possibilities of no ties, two-way ties, and a three-way tie. This is calculated by adding 6 permutations for no ties, 6 combinations for two-way ties, and 1 possibility for a three-way tie.

Explanation:

We need to calculate in how many different ways Alfred, Brandon, and Charles can finish a race given that there is the possibility of a tie. There are three scenarios to consider for the finishes: no ties, two-way ties, and a three-way tie.

No ties: This is a simple permutation of 3 participants, which gives us 3! (3 factorial) ways to finish, or 3 x 2 x 1 = 6 ways.

Two-way ties: For the two-way tie, we have 3 possible pairs (Alfred & Brandon, Alfred & Charles, Brandon & Charles), and for each pair, there is one person who does not tie, resulting in 2 finishing orders per pair, so 3 pairs x 2 orders = 6 ways.

Three-way tie: There is only 1 way that all three can tie.

Adding up the possibilities from each scenario, we get 6 (no ties) + 6 (two-way ties) + 1 (three-way tie) = 13 different ways they can finish the race.