5. What is the length of an arc that subtends a central angle of 75° in a circle whose radius is 5 inches?
Round off your answer to the nearest whole number.
A. 7
B. 4
C. 16
D. 21

Answer:

4777.28 N

Step-by-step explanation:

The gravitational force down the slope is given by the formula;

(mass *g * sin θ )  

where;

θ is the angle of inclination of the slope

g is the gravitational pull

We plug in the given values into the above expression;

(4,000 x 9.8 x sin 7) = 4777.28 N.  

The frictional force must equal to 4777.28 N (pointing up the slope).

Final answer:

To calculate the friction force acting on a 4000 kg truck parked on a slope, the component of the truck's weight acting down the slope is determined and found to be approximately 4780 N. This value represents the maximum static friction force available to prevent the truck from sliding.

Explanation:

The question is asking to calculate the friction force acting on a truck parked on a slope. To find the friction force, first, we need to calculate the component of the truck's weight that is acting down the slope. This can be found with the formula Wparallel = mg sin(θ), where m is the mass of the truck, g is the acceleration due to gravity (9.8 m/s²), and θ is the angle of the slope.

The truck's weight component acting along the slope is:
Wparallel = 4000 kg * 9.8 m/s² * sin(7°) ≈ 4000 kg * 9.8 m/s² * 0.12187 ≈ 4780 N

The friction force will counteract this downhill force to prevent the truck from sliding. Assuming that the friction force equals the downhill component of the truck's weight to keep the truck stationary, the friction force on the truck is approximately 4780 N. However, without the coefficient of friction, this represents the maximum static friction force that could occur before the truck would start to slide down the slope.

Answer:

1000 cubic feet

Step-by-step explanation:

1000 cubic feet because you have to find the volume of the small cube on the bottom right which is 5x5x5=125, volume of the middle right rectangular prism is 20x5x5=500, and volume of the right side rectangular prism is 15x5x5=375. 125+550+375= 1000 cubic feet.

Answer:

10

Step-by-step explanation:

It is 10 because 9 is over 5 so it would round to 10

Please mark brainliest my answer got deleted

Answer:

KONO DIO DA

Step-by-step explanation:

Answer:

The answer is d.

Step-by-step explanation:

As we know, sin x= cos (90°-x)

sin 18° = cos (90°-18°)

= cos 72°.

Similarly, sin 72°= cos (90°-72°)

= cos 18°

But, sin 55°= cos (90°-55°)

= cos 35°

ANSWER

B. infinite solutions

EXPLANATION

We want to solve the equation;

[tex]6x + 3y = - 6...(1)[/tex]

and

[tex]2x + y = - 2...(2)[/tex]

We multiply the second equation by 3 to get:

[tex]6x + 3y = - 6...(3)[/tex]

We now subtract equation (1) and (3).

[tex]6x - 6x + 3y - 3y = - 6 - - 6[/tex]

This implies that

[tex]0 = 0[/tex]

Hence the equation has infinitely many solutions.

Answer: draw line segment AB

Step-by-step explanation (A PEX)

The second step in constructing this equilateral triangle is draw two circles with radius AB. Option A is correct.

An equilateral triangle is the triangle in which all the three sides are of equal length in measure.

The first step in constructing this equilateral triangle, to draw segment AB. The second step for this has to find out.

Here, the triangle ABC is shown in the given image. As it is known that all the sides of a equilateral triangle are equal. Therefore,

[tex]AB=BC=AC[/tex]

The first circle is co-occur, the second circle completely. This happens when the two circles made with same radius.

Now from the center point of the circle to the boundary of that circle, is called the radius of the circle., Thus, the line segment AB is the radius of the two circles.

Hence, the second step in constructing this equilateral triangle is draw two circles with radius AB. Option A is correct.

Learn more about the equilateral triangle here;

https://brainly.com/question/1099318

Answer:

4181

Step-by-step explanation:

The Fibonacci sequence starts with 0 and 1... then all other terms are obtained by adding the two previous terms.

0, 1, 1, 2, 3, 5, 8, 13, 21, and so on.

So, if you have any two consecutive terms from the sequence, you can easily find the next one by adding them together:

F(19) = F(17) + F(18)

F(19) = 1597 + 2584  = 4181

ANSWER

[tex]f(a + 2) = \frac{a + 5}{a - 1} [/tex]

EXPLANATION

The given function is

[tex]f(x) = \frac{3 + x}{x - 3} [/tex]

To find f(a+2) we substitute x=a+2.

That is wherever we see 'x' we replace it with 'a+2'

[tex]f(a + 2) = \frac{3 + a + 2}{a + 2 - 3} [/tex]

We simplify further to obtain:

[tex]f(a + 2) = \frac{a + 5}{a - 1} [/tex]

This is defined for

[tex]a \ne1[/tex]

Answer:

Domain: {0, 1, 2, ..., 175}.

Step-by-step explanation:

We are given that a club bought 175 frisbees at a cost of $200 which you plan to sell for $5 each.

We are to find the domain of this function.

Domain is actually the input into a function which is the x value.

Here sales = 5x where x represents the number of frisbees sold.

So the profit will be:

Profit = Sales - Cost = 5x - 200

Here in this case, the domain would be the number of frisbees sold which is between 0 to 175.

Answer:

C= 10

Step-by-step explanation:

A=8

B=6

C= ?

1. Set up the equation for the Pythagorean theorem and fill in the variables.

8² + 6² = c

64 + 36 = 100

2. Square root 100.

Square root of 100 = 10

Answer = 10

The missing length on the right triangle is 10 in.

"It is a triangle whose one of the angle measures 90°"

"It is the longest side of the right triangle."

"For a right triangle,

[tex]a^2+b^2=c^2[/tex], where c is the hypotenuse and a, b are other two sides of the right triangle."

For given question,

We have been given a right triangle with a = 8 in. and b = 6 in

We need to find the the value of c.

Using Pythagorean theorem,

[tex]\Rightarrow c^2 = a^2+b^2\\\Rightarrow c^2 = 8^2+6^2\\\Rightarrow c^2 = 64+36\\\Rightarrow c^2 = 100\\\Rightarrow c=10~in[/tex]

Therefore, the missing length on the right triangle is 10 in.

Learn more about the Pythagorean theorem here:

https://brainly.com/question/343682

#SPJ2

Answer: 10

Step-by-step explanation:

see attached picture

Answer:

It is 10

Step-by-step explanation:

Answer: Second option.

Step-by-step explanation:

Below are some transformation for a function f(x):

If [tex]f(x)+k[/tex] then the function is shifted up "k" units.

If [tex]f(x)-k[/tex] then the function is shifted down "k" units.

If [tex]f(x+k)[/tex] then the function is shifted "k" units to the left.

If [tex]f(x-k)[/tex] then the function is shifted "k" units to the right.

Knowing this tranformations and given the parent function [tex]f(x)=x^3[/tex] and the function [tex]g(x) = (x -2)^3 + 7[/tex], we can conclude that the function g(x) is shifted 2 units to the right and 7 units up.

We can observe that this matches with the second option.

45x = 25x + 57 + x

45x = 26x + 57

45x - 26x = 57

19x = 57

x = 57/19

x = 3

Answer:

B

Step-by-step explanation:

The slope is 2

Y int is -3

Finding the slope using the two points:

The formula for slope is

[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

In this case...

[tex]y_{2} =-3\\y_{1} =2\\x_{2} =3\\x_{1} =-4[/tex]

^^^Plug these numbers into the formula for slope...

[tex]\frac{-3-2}{3 - (-4)}[/tex]

[tex]\frac{-5}{7}[/tex]

^^^This is your slope

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

[tex]-\frac{5}{7}[/tex]

Step-by-step explanation:

Slope formula:

     ↓

[tex]\frac{Y_2-Y_1}{X_2-X_1}[/tex]

[tex]\frac{(-3)-2}{3-(-4)}=\frac{-5}{7}=-\frac{5}{7}[/tex]

-5/7 is the correct answer.

Answer:

They will land at the same time.

Step-by-step explanation:

According to Gallileo's test where he dropped two balls (one heavier than the other) from the same height and they landed both a precisely the same time then we know that as long as two objects are dropped from the same height then no mtter the weight they will land at the same time.

Answer: at about the same time as the lighter object

8*8 equals 64 and a square root is a number times another number equals thr number that you are going for

Answer: option d.

Step-by-step explanation:

To find the square root of [tex]r^{64}[/tex], it is important to remember the following:

[tex]\sqrt[n]{a^n}=a[/tex]

Then, knowing this, you can find the square root of  [tex]r^{64}[/tex] with this procedure:

[tex]\sqrt{r^{64}}=r^{32}[/tex]

There is another procedure to solve the exercise. Knowing that:

[tex]\sqrt[n]{a}=a^{\frac{1}{n}}[/tex], you get:

[tex]\sqrt{r^{64}}=r^{\frac{64}{2}}=r^{32}[/tex]

Then the answer is the option d.

Answer:

[tex]g(x)= 3x-2[/tex], graph shifted 2 units down.

Step-by-step explanation:

[tex]g(x)= 3x-2[/tex]

g(x) = 3x is a parent function.

When we compare the graph of parent function g(x)= 3x with [tex]g(x)= 3x-2[/tex], negative 2 is added at the end

f(x)---> f(x) + a , the graph will be shifted 'a' units up

f(x)-> f(x) -a , the graph will be shifted 'a' units down

[tex]g(x)= 3x-2[/tex], In this g(x) we have -2 at the end.

So the graph will be shifted 2 units down.

The graph of 3x - 2 is a vertical translation by 2 units down of the function f(x) = 3x

According to the question, we are given the parent function f(x) = 3x, we need to determine the relationship between the parent function and g(x) = 3x - 2

If the function f(x) translate by k units downwards, the resutlting function will be expressed as h(x) - k.

Hence if h(x) = 3x translate by 2 units downwards, the resulting function will be expressed as 3x - 2.

The graph of 3x - 2 is a vertical translation by 2 units down of the function h(x) = 3x

Learn more on translation here: https://brainly.com/question/12861087

Answer:

See below

Step-by-step explanation:

So basically, your orders pairs are like this (x,y) and you're just replacing those variables with the numbers in the equations.

Like such:

Answer: see photo below

Step-by-step explanation:

Answer:

9 is the second number in this sequence

Step-by-step explanation:

So if n is the first integer in this sequence, then the following are true of the sequence of consecutive odd numbers (just means the odd integer right after):

First integer:  n

Second integer: n+2

Third integer: n+4

Fourth integer: n+6

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

Sum of these integers are 4n+12=40

Subtract 12 on both sides: 4n     =28

Divide both sides by 4:        n       =7

So first integer 7

Second integer: 9

Third integer:  11

Fourth integer: 13

When you add these up you do get 40!

Answer:

A)3

Step-by-step explanation:

Answer:

[tex]g(n)=18-4n[/tex]

Step-by-step explanation:

You are given the function g, for which

[tex]g(1)=14,\\\\g(n)=g(n-1)-4[/tex]

Find some values of this function:

[tex]g(1)=14\\ \\g(2)=g(2-1)-4=g(1)-4=14-4=10\\ \\g(3)=g(3-1)-4=g(2)-4=10-4=6\\ \\g(4)=g(4-1)-4=g(3)-4=6-4=2\\ \\...[/tex]

You can see that ecah next value is 4 less than previous one, so these values form an arithmetic sequence and you have to find the nth term of this sequence. The nth term of arithmetic sequence is

[tex]a_n=a_1+(n-1)d,[/tex]

where

[tex]a_1=g(1)=14\\ \\d=-4[/tex]

So,

[tex]g(n)=a_n=14+(n-1)\cdot (-4)=14-4n+4=18-4n[/tex]

Answer:

18-4n

Step-by-step explanation:

Answer:

1. 264 ft/s

2. 5280 feet

Step-by-step explanation:

Changing miles per seconds to feet per hour

If 1 mile= 5280 feet

180 miles=?

[tex](180*5280)/1 = 950400[/tex]

=950400 feet

1 hour= 60×60 seconds = 3600

180 miles/hour = feet/sec = 950400/3600 =264 ft/s

To find the number of feet the parachutist fall during 20 seconds;

Distance= speed × time

              =264×20 = 5280 feet

Answer:

9+sqrt(14)

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

9+sqrt(14)

Step-by-step explanation:

To get rid of the square root in the denominator, you want to multiply by the conjugate.

Since we have a - sqrt(b) in the denominator

We need to multiply by a + sqrt(b)

What we do the bottom, we do to the top

9+sqrt(14)

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

9+sqrt(14)

You can also just multiply by the decimal equivalent.

12*.35=4.2

35% of 12 is 4.2

Hope this helps!

Answer:

4.2

Step-by-step explanation:

Find 35% of 12. ​

To find 35% of 12, you can use the method you demonstrated above by solve

35% = 35/100

of 12 = multiplication.

35/100 × 12

0.35 × 12

= 4.2

        OR

35 × 12/100

420/100

= 4.2  ​

Hope this helps!

Thanks.

Step-by-step explanation:

Remember to follow PEMDAS. PEMDAS = Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction.

Note the equation:

y = (1/4)x + 1

Plug in a number to x, & solve to get the answer for the variable (y).

In this question, they give you 3 numbers to plug into x: 4, 8, 12. Plug them in:

When x = 4

y = (1/4)(4) + 1

Solve. Simplify. Remember to follow PEMDAS. First, multiply 1/4 with 4:

y = (1/4)(4) + 1

y = (1 * 4)/4 + 1

y = 4/4 + 1

y = 1 + 1

Simplify. Combine the terms:

y = 1 + 1

y = 2

when x = 4, y = 2.

When x = 8

y = (1/4)(8) + 1

Solve. Simplify. Remember to follow PEMDAS. First, multiply 1/4 with 8:

y = (1/4)(8) + 1

y = (1 * 8)/4 + 1

y = 8/4 + 1

y = 2 + 1

y = 3

when x = 8, y = 3.

When x = 12

y = (1/4)(12) + 1

Solve. Simplify. Remember to follow PEMDAS. First, multiply 1/4 with 12:

y = (1/4)(12) + 1

y = (1 * 12)/4 + 1

y = 12/4 + 1

y = 3 + 1

y = 4

when x = 12, y = 4.

~

[tex]\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} \stackrel{\textit{we'll use this one}}{y=a(x- h)^2+ k}\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{}{ h},\stackrel{}{ k}) \\\\[-0.35em] ~\dotfill\\\\ f(x)=-2(x+4)^2-3\implies f(x)=-2[x-(\stackrel{h}{-4})]^2\stackrel{k}{-3}~\hfill \stackrel{vertex}{(-4,-3)}[/tex]

well, to get a second point, we simply pick a random "x" hmmm  say x = 1, so then

f( 1 ) = -2( 1 + 4) ² - 3

f( 1 ) = -2(25) - 3

f( 1 ) = -53

so from that we get the point of x = 1, y = -53   ( 1 , -53), so it looks like the picture below.

Answer:

[tex]\large\boxed{S.A.=96\ cm^2}[/tex]

Step-by-step explanation:

We have:

(1) two trapezoids with bases b₁ = 7cm and b₂ = 5cm and the height h = 4cm

(2) three rectangles 3 cm × 7 cm, 3 cm × 4 cm and 3 cm × 5 cm.

The formula of an area of a trapezoid:

[tex]A=\dfrac{b_1+b_2}{2}\cdot h[/tex]

Substitute:

[tex]A=\dfrac{7+5}{2}\cdot4=24\ cm^2[/tex]

Calculate the areas of the rectangles:

[tex]A_1=(3)(7)=21\ cm^2\\\\A_2=(3)(4)=12\ cm^2\\\\A_3=(3)(5)=15\ cm^2[/tex]

The Surface Area:

[tex]S.A.=(2)(24)+21+12+15=96\ cm^2[/tex]

Complex numbers emerge when you take the square root of a negative number, since the imaginary unit [tex]i[/tex] is defined by the relation [tex]i^2=-1[/tex], which implies [tex]\sqrt{-1}=i[/tex]

The only option involving the square root of a negative number is the last one.

Answer:

option D

Step-by-step explanation:

Complex number is a number that has negative under the square root.

Square root (-1) =i is a complex number

square root of a negative number is a complex.

First option does not have any negative number under the square root so it is not a complex.

second option also not have negative number under square root . So it is not a complex

third option have positive 7 under the square root so it is not a complex

Fourth option have -9/5 under the square root . So it is a complex number