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Answers

Answer 1

Answer:

              P = 19.76 units

Step-by-step explanation:

1. Finding  [tex]\overrightarrow{AB}[/tex]  (or [tex]\overrightarrow{BA}[/tex]):

[tex]\overrightarrow{AB}=\overrightarrow{OA}-\overrightarrow{OB}= \left[\big5\atop\big3\right]-\left[\big2\atop-\big5\right]= \left[\big5-\big2\atop\big3-(-\big5)\right]=\left[\big3\atop\big8\right][/tex]

2. Calculating length of  [tex]\overrightarrow{OA}\,,\ \overrightarrow{OB}\ \text{and}\ \overrightarrow{AB}[/tex]:

[tex]|\overrightarrow{OA}|=\sqrt{5^2+3^2}=\sqrt{25+9}=\sqrt{34}\approx5.831\\\\ |\overrightarrow{OB}|=\sqrt{2^2+(-5)^2}=\sqrt{4+25}=\sqrt{29}\approx5.385\\\\ |\overrightarrow{AB}|=\sqrt{3^2+8^2}=\sqrt{9+64}=\sqrt{73}\approx8.544[/tex]

3. Calculating perimeter:

[tex]P=|\overrightarrow{OA}|+|\overrightarrow{OB}|+|\overrightarrow{AB}|=\sqrt{34}+\sqrt{29}+\sqrt{73}\approx5.831+5.385+8.544=19.76[/tex]

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Related Questions

Find the volume of the cone.
Either enter an exact answer in terms of or use 3.14 for radius is 6 height is 8

Answers

Answer:

Hey there!

Cone formula: [tex]\pi[/tex]hr^2/3

Plugging in the values, we get the volume is 301.59

Let me know if this helps :)

Answer:

96π

301.59

Step-by-step explanation:

The volume of a cone can be calculated using the following formula:

[tex]V=\frac{1}{3}bh[/tex]

b is the base and h is the height. The base formula for a circle (area):

[tex]b=\pi r^2[/tex]

Insert this value into the formula:

[tex]V=\frac{1}{3}\pi r^2h[/tex]

Simplify the formula:

[tex]V=\frac{\pi r^2h }{3}[/tex]

Now insert the known values:

[tex]V=\frac{\pi(6)^2(8) }{3}[/tex]

Simplify:

[tex]V=\frac{\pi*36*8 }{3}\\\\V=\frac{288\pi }{3}\\\\V=96\pi[/tex]

The volume is 96π units³ or 301.59 units³.

:Done

What is the value of x in the equation below? Negative 3 minus (negative 8) minus (negative 2) = x –13

Answers

please make me as brainliest

Answer:

A

Step-by-step explanation:

is 6 greater than 0.06 and 0.006

Answers

Answer:

Yes, 6 is greater then 0.06 and 0.006

Step-by-step explanation:

6 = 6.00

and both 0.06 and 0.006 are not even a whole number

Answer: Yes it is

Step-by-step explanation:

6>0.06 and 6 >0.006

Find the value of b×6 when b=7

Answers

Answer:

42

Step-by-step explanation:

It is basically 7×6 when you replace the b with 7

Answer:

The answer is 13.

Step-by-step explanation:

Find the value of 6 + b:

Replacing b by 7 gives 6 + 7. (example)

Find the slope and y-intercept of y = 2x - 5.
I
m =
b

Answers

Step-by-step explanation:

y=2x-5 is in y=mx+b

Where m = slope

[tex]slope = m = 2[/tex]

To find y-intercept :

[tex]y = 2x - 5[/tex]

Let x =0

[tex]y = 2(0) - 5 \\ y = 0 - 5 \\ y = - 5[/tex]

7)
The first floor of the Willis Tower is 21 feet high. Each additional floor is 12 feet high.
a
Write an equation for the nth floor of the tower.
b.
Find the height of the 65th floor.

Answers

Answer:

Step-by-step explanation:

If the first floor of the Willis Tower is 21 feet high. and each additional floor is 12 feet high, then the floor heights as we move from one floor to another we keep increasing by 12feets and forms an arithmetic progression as shown;

21, (21+12), (21+12+12), ...

21, 33, 45...

a) To write an equation for the nth floor of the tower, we will have to find the nth term of the sequence using the formula for finding the nth term of an arithmetic sequence.

The nth term of an arithmetic sequence is expressed as [tex]T_n = a + (n-1)d[/tex]

a is the first term = 21

d is the common difference = 33-21 = 45-33 = 12

n is the number of terms

Substituting the given parameters into the formula;

[tex]T_n = 21+(n-1)*12\\T_n = 21+12n-12\\T_n = 21-12+12n\\T_n = 9+12n[/tex]

Hence the equation for the nth floor of the tower is expressed as [tex]T_n = 9+12n[/tex]

b) To get the height of the 65th floor, we will substitute n = 65 into the formula arrived at in (a)

[tex]T_n = 9+12n\\T_{65} = 9 + 12(65)\\T_{65} = 9+780\\T_{65} = 789 ft[/tex]

Hence the height of the 65th floor is 789feets.

Question 3
Find the domain and range of the function represented by the graph?

A. Domain: -3 Range: -4<=y<=0

B. Domain: {-3, -2, -1, 0, 1}
Range: {-3, -2, 0, 1}

C. Domain: {-4, -3, 0, 1, 2}
Range: {-4, -3, -2, -1, 0}

D. Domain: -4 <= x<=-3
Range: 0<=y<=1

Answers

Answer:

Domain:  [tex]-3\leq x\leq 1[/tex]

Range:  [tex]-4\leq y\leq 0[/tex]

Step-by-step explanation:

If you find the coordinate of the graph you can get the domain and range

(-3,0), (-2,-4), (-1,-2), (0,0), (1, -4)

Now that we have that find the domain and range

Domain -  x coordinate

Range - y coordinate

Domain: (-3, -2, -1, 0, 1)

Range: (-4, -2, 0)

Since the domain ranges from -3 to 1 you can use the inequality [tex]-3\leq x\leq 1[/tex] to represent the domain and [tex]-4\leq y\leq 0[/tex] for the range

DJ tracks the song request she received on Friday night she noted that the number of request for country songs with two more than 4/3 times a number request for hip-hop songs they're 18 request for country songs if X represents the number of request for K-pop songs which equation represents the situation how many request for hip-hop songs did the DJ receive on Friday night

Answers

Answer: DJ receive 12 requests for hip-hop songs on Friday night.

Step-by-step explanation:

As per given , we have

[tex]\text{(Number of request country songs ) = }2+\dfrac{4}{3}\times (\text{Number of request for hip-hop songs})[/tex]

Let X represents the number of request for hip-hop songs which equation represents the situation .

If  they're 18 request for country songs, then

[tex]18=2+\dfrac{4}{3}X\\\\\Rightarrow\ 18-2 =\dfrac{4}{3}X\\\\\Rightarrow\ 16 =\dfrac{4}{3}X\\\\\Rightarrow\ X=\dfrac{3}{4}\times16= 3\times4=12\\\\\Rightarrow\ X=12[/tex]

Hence, DJ receive 12 requests for hip-hop songs on Friday night.

How do I do? What is the answer and why

Answers

Answer:

Step-by-step explanation:

∠ADE =  74   {Vertically opposite angles are equal}

∠AED + 127 = 180  {Straight line }

∠AED = 180 - 127

∠AED = 53

In ΔADE,

∠DAE + ∠AED + ∠ADE = 180 {angle sum property of triangle}

∠DAE + 53 + 74 = 180

∠DAE + 127 = 180

∠DAE = 180 -127

DAE = 53

Which expression could be used to calculate the volume of the new can?

Answers

Answer:

C.

Step-by-step explanation:

pi(r)^2

pi(2x+1)^2

6x(4pix^2+4pix+1pi)

24pix^3+24pix^2+6pix

Answer:

C

Explanation:

Volume for a cylinder is V= (pi)(r^2)(h)

r being radius, h being height.

The radius is 2x+1, so square that

(2x+1)^2 = 4x^2 + 4x + 1

Then multiply by 6x, the height

(4x^2 + 4x + 1)(6x) = 24x^3 + 24x^2 + 6x

Then multiply each term pi, which would be answer C.

−18+p=18 what property would be used for this

Answers

Answer:

addition property of equality

Step-by-step explanation:

−18+p=18

Add 18 to each side using the addition property of equality

−18+18+p=18+18

p = 36

Two co-teachers, Daniel and Mathew, have to grade a set of math journals.
Daniel grades 45% of the journals and Mathew grades 55% of them.
Mathew has to grade 121 journals. How many total journals have to be graded?

Answers

Answer:

220

Step-by-step explanation:

55 percentage of x = 121

so X = 220

as simple as that

220!!!!!!!!!!! is the answer :D

Word Problem 18.) You are ordering T-shirts from a catalog. Each T-shirt costs $15. The cost of shipping is $6 no matter how many shirts you order. The total cost is $111. How many T-shirts did you order? please i need help!!!​

Answers

Answer:

7 t-shirts

Step-by-step explanation:

Because you know the cost of shipping ($6) is constant no matter the quantity you order (fixed cost), you can subtract it from the total cost of the order to find the total variable cost. Next you divide the left over cost by the cost per t-shirt to get the quantity ordered.

$111 - 6 = $105

$105 / $15 per shirt = 7 t-shirts

Hope this helps!

-The Business Man

How many solutions does this equation have? -3 – 7t = -7t - 3
1)no solution
2)one solution
3)infinitely many solutions​

Answers

Answer:

3)infinitely many solution

Step-by-step explanation:

-3 - 7t = -7t - 3

-7t + 7t = -3 + 3

0 = 0

if there is same number on both side it have infinitely many solution.

hope u like it ‍❤️‍❤️‍‍❤️‍

for any question comment me

who would win? Justice leage or the Teen titans, the Thundercats and the Teenage mutant ninja turtles

Answers

Justice league by murder

Answer:

JUSTICE LEAGUE

Step-by-step explanation:

Given the function f(x) = -x^2 +7x + 6, find the interval(s) in which f(x) is decreasing.

Answers

Answer:

Step-by-step explanation:

f'(x)=-2x+7

f(x) is decreasing if '(x)<0

so -2x+7<0

or 7<2x

or 2x>7

or x>7/2

including end points f(x) is decreasing in [3/2,∞)

The formula for the area of a triangle is A=1/2 bh, where b is the base of the triangle. what is the length of the base if the area is 32cm squared and the height is 4 cm

Answers

Answer:

base =16

Step-by-step explanation:

[tex]A = \frac{1}{2} \times b \times h\\A = 32\\b = ?=x\\h = 4\\\\32 = \frac{1}{2} \times x \times 4\\\\32 = \frac{4x}{2} \\\\Cross \: Multiply\\\\64 =4x \\Divde \: both \: sides \: of \: the \:equation \:by \: 4\\\\\frac{4x}{4} = \frac{64}{4} \\\\x = 16[/tex]

D is the midpoint of AB. If AD=2x+11 and DB=4x-5, find the value of x and AB

Answers

Answer:

x = 8

AB  = 54

Step-by-step explanation:

AD = DB

2x+11 = 4x-5

11 = 2x - 5

16 = 2x

8 = x

2(8) + 11 =

16 + 11 = 27

What would be the total if 25%is 18

Answers

Answer:

72

Step-by-step explanation:

You would first change 25% to 0.25

Then divide 18 by 0.25 (18/0.25)

Which equals 72

Answer:

4.5 because its basically 18 divided by 4

Step-by-step explanation:

Which expressions are equivalent to 4(4a+5

Answers

Answer:

4(4a+5) = 16 a + 20 = True

Step-by-step explanation:


Write the equation for Chelsea's graph in
slope-intercept form. Make sure the slope is
written in simplest form.

Answers

Answer:

[tex]y=-4x+16[/tex].

Step-by-step explanation:

From the given graph it is clear that the y-intercept is 16.

The line passes through (-2,24) and (2,8). So, slope of line is

[tex]Slope=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]Slope=\dfrac{8-24}{2-(-2)}[/tex]

[tex]Slope=\dfrac{-16}{4}[/tex]

[tex]Slope=-4[/tex]

Slope intercept form of a line is

[tex]y=mx+b[/tex]

where, m is slope and b is y-intercept.

Substitute m=-4 and b=16 in the above equation.

[tex]y=(-4)x+(16)[/tex]

[tex]y=-4x+16[/tex]

Therefore, the required equation is [tex]y=-4x+16[/tex].

Evaluate the expression using x = –1 and y=3. (6x4y3)

Answers

((6(-1)4(3)3)) = -216

Answer:

6(-3)*4(3)*3

-12 *12 *3

-144*3

-432

Answer: -432

Step-by-step explanation:

-7 – 9x = -61
please help solve and show your work. thank you.

Answers

Answer:

Step-by-step explanation:

-7 - 9x = -61

-9x = -54

x = 6

Evaluate the expression when x = 11-2
10
1.-6x4 +X +20
2. 5x2 - 9x2 + 35
3. -8x + 13x3 -10
4. -9x2 + 10x -15
5. -8x2 + 13x3 +20
6. 8x4 + 13x - 10
7.-9x + 10x4 -15
8.-18x3 + 10x2 +20
9. 7x4 + 13x2-10
10. 6x3 + 13x - 10
11. 3x2 + 13x2 -10
12. 2x4 + 13x - 10
Can someone help me please

Answers

I'm confused as to why there's a random "10" but the answer is actually pretty simple. Insert (11-210) into the problems.

Basically substitute (11-210) into the numbers with the x variable.

-18x3 + 10x2 +20 is the answer

I'm bad at math. a plan for a baseball diamond is drawn in a coordinate plane. the baseball diamond is in a shape of a square.with vertices at approximately (0,64),(64,0),(0,—64), and (—64,0). one unit in the coordinate plane represents 1 ft. what is the approximate area of the baseball diamond? what is the area of the trapezoid shown?​

Answers

Answer:

Area of diamond=8192

Area of trapezoid =72 square unit

Step-by-step explanation:

Area of diamond:

find the distance between the points:

(0,64), (64,0), (0,-64),(-64,0)

d=√(x2-x1)²+(y2-y1)²

d=√64²+64²

d=64√2=90.51( rounded to the nearest hundredth)

since it is shape of square then all sides are equal

A=length*width

A=64√2*64√2

A=8192 square unit

4- Area of trapezoid= ((base a +base b)/2) h

base a=3, base b=6 height=8 ( from graph count the tiles)

Area of trapezoid = ((3*6)/2 )* 8

Area=18/2*8

Area=9*8=72 square unit

The area of a diamond is 8192 square units and the area of a trapezoid is 72 square units.

What is an area?

The space occupied by any two-dimensional figure in a plane is called the area. The area of the outer surface of any body is called the surface area.

The area of the diamond will be calculated as below:-

find the distance between the points:

(0,64), (64,0), (0,-64),(-64,0)

d=√(x2-x1)²+(y2-y1)²

d=√64²+64²

d=64√2=90.51( rounded to the nearest hundredth)

Since it is the shape of a square then all sides are equal

A=length x width

A=64√2 x 64√2

A=8192 square unit

The area of the trapezoid will be calculated as below:-

Area of trapezoid= ((base a +base b)/2) h

base a=3, base b=6 height=8 ( from graph count the tiles)

Area of trapezoid = ((3*6)/2 )* 8

Area=( 18/2 ) x 8

Area=9 x 8=72 square unit

Therefore, the area of a diamond is 8192 square units and the area of a trapezoid is 72 square units.

To know more about the area of the trapezoid follow

https://brainly.com/question/1410008

#SPJ2

evaluate zx-xy-7 use x=-3, y=8, and z=-9*​

Answers

Answer:

44

Step-by-step explanation:

1. substitute variables with their constants

(-9)(-3) - (-3)(8) - 7

2. multiply all like terms

(27) - (-24) - 7

3. Combine all like terms

27 + 24 - 7

51 - 7

= 44

Answer:

44

Step-by-step explanation:

Evaluate z x - x y - 7 where x = -3, y = 8 and z = -9:

z x - x y - 7 = -9 (-3) - -3×8 - 7

Hint: | Multiply -9 and -3 together.

-9 (-3) = 27:

27 - -3×8 - 7

Hint: | Multiply -1 and -3 together.

-(-3) = 3:

27 + 3×8 - 7

Hint: | Multiply 3 and 8 together.

3×8 = 24:

27 + 24 - 7

Hint: | Evaluate 27 + 24 using long addition.

| 1 |  

| 2 | 7

+ | 2 | 4

| 5 | 1:

51 - 7

Hint: | Subtract 7 from 51.

| 4 | 11

| 5 | 1

- | | 7

| 4 | 4:

Answer: 44

Which of the following is a factor of x^2 -5x-6

Answers

Answer:

(x-6)(x+1)

Step-by-step explanation:

(X-6)(x+1)

Show your work t

A number increased by 5 is less than or equal to 26

Answers

Answer:

Equation: x + 5 ≤ 26

Solved: x ≤ 21

Nevaeh had 12 blue pencils and 18 red pencils to give out equally among the maximum number of classmates. How many red pencils will she give to each classmate?

Answers

Answer:

The answer to this problem is 3

Step-by-step explanation:

please helppp!!!!!!!!​

Answers

Yeah yeah singing challenge
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