HEY FAST I NEED HELP RNNNNNN FASTTTTTT PLZ

Answer:

60.84 cm²

Step-by-step explanation:

The formula for the area of a square is:

A=s²

A=7.8²

A=60.84 cm²

Answer:

hey i would love to help but foirst thank me

Step-by-step explanation:

Answer:

x = 1 , y = -6

Step-by-step explanation:

-5x - 1 = -x - 5

-5 x + x = -5 + 1

-4 x = -4

x = 1

if x = 1

y = -x - 5

y = -1 - 5

y = -6

Answer:

x=1 , y=-6

Step-by-step explanation:

y=-5x-1 ..............1

y=-x-5 ...............2

1×y=-5x-1 .............3

5×y=-x-5................4

y= -5×-1

5y=-5×-5

-5-(-5)=0

y=-1

5y=-5

so; 4y=-1-(-5)

4y = 4

4

y = 1

sub y =1 into eqn................. 2

y=-x-5

y=-1-5

y= -6

Answer:

287.919235271

Step-by-step explanation:

Answer:

287.919235271

Step-by-step explanation:

Order of operations:

3 + 5 - 35 + 7 x 5 x 9 - 9 / 7689 x 69

3 + 5 - 35 + 35 x 9 - 9 / 7689 x 69

3 + 5 - 35 + 315 - 9 / 7689 x 69

3 + 5 - 35 + 315 - 0.0807647288334

8 - 35 + 315 - 0.0807647288334

-27 + 315 - 0.0807647288334

288 - 0.0807647288334

287.919235271

Answer:

Step-by-step explanation:

a1 = - 2

an = a1 * r^(n - 1)

a6 = -486

-486 = - 2 * r^(6-1)                      Divide by 2

243 = r^5

The largest value that r could be is 3.

4^5 = 1024

(243)^(1/5) = 3

So the general formula

an = -2*(3)^(n - 1)

The volume in cubic feet of water the Robertson's filled the pool with is 1750

The volume of a shape is the amount of space in the shape

From the question, the dimension of water in the pool is:

35 feet by 10 feet by 5 feet

Billy's height, and the number of people in attendance do not affect the volume.

So, we have:

[tex]Volume = 35ft\times 10ft\times 5ft[/tex]

[tex]Volume = 1750ft^3[/tex]

Hence, the volume in cubic feet of water the Robertson's filled the pool with is 1750

Read more about volumes at:

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Answer:

1575

Step-by-step explanation:

We are given a lot of information here, so the first thing we need to do is figure out what the problem is. We are asked to find the volume of water in the pool during the pool party. To find this, all we need to know is the length and width of the pool, and the height of the water filled in the pool. All the other information is irrelevant. We are told that Billy is 4.5 feet tall, which is half the width of the pool. So, we multiply his height by 2 to get the width

4.5⋅2=9.

Then, we know that they are only filling the pool to a height of 5 feet and the length is 35 feet. To find the volume, we multiply the length, width, and height

35⋅9⋅5=1575.

The volume of water in the Robertson's pool for the party is 1,575 ft3.

Answer:

Part A: Determine the length of the leach- 17FT

Part B: Find the area of the mainsail-64.81FT2

Step-by-step explanation:

The mainsail foot is 13 feet long, the luff is 10 feet long has the length of the leach 6.93 ft and the area of the mainsail is 64.85 [tex]\rm ft^{2}[/tex].

The mainsail foot is 13 feet long, the luff is 10 feet long, and the luff makes a 50° angle at the head with the leach, the length of the leach and the area of mainsail is requird.

The law of sines refers to the ratio of side length of triangle to the sine of the opposite angle which is same for all the sides.

SinA / a = SinB/ b = SinC/c

where, the A,B,C are the angle of the triangle and a,b,c are the opposite sides of the angle of triangle.

Part A

By using the sines law,

SinA /10 = SinB / 13

SinA /10 = Sin50 / 13

A = 36.10

C = 180-(180-36.10)

C = 93.90

So, Sin36.10 / a = Sin50/ b = Sin93.90/c

Sin36.10 / 10 = Sin50/ 13 = Sin93.90/c

c = Sin93.90 × 13 ÷ Sin50

c = 16.93 ft

Part B

Area of the mainsail = 1/2 × abSinC

                                  = 1/2 × 10 × 13 × Sin93.90

                                  =  64.85 [tex]\rm ft^{2}[/tex]

Therefore, the length of the leach is 16.93 ft and the area of the mainsail is 64.85 [tex]\rm ft^{2}[/tex].

Learn more about the sines law here;

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Answer:

The answer should be 9

Step-by-step explanation:

They are all being added by 2

-1+2=0

0+2=2

5+2=7

7+2=9

Answer: It is 9

Example:hope i helped

[tex] \frac{9}{ - j} [/tex]

Answer:

picture

Step-by-step explanation:

Answer:

Step-by-step explanation:

Rent=$900 per month

Annual expenses=$3075 per year

$3075/12=$256.25 per month

$875/12=$72.9166666667= $73 (2sf)

$420/12=$35

$900+$256.25+$73+$35=$1264.25

Answer:

Step-by-step explanation:

Use two pairs of points to work out the equation:

Find the slope:

Find the y-intercept:

The line is:

Correct choice is D

Answer:

52°

Step-by-step explanation:

y= 180°-67°= 113°

x=180°-15°-113°=52°

The value of x will be 52°.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The two interior angles are 15° and x°.

And, The exterior angle of triangle = 67°

Now,

Since, We know that;

The sum of two interior angles in a triangle is equal to the exterior angle of same triangle.

Hence, We can formulate;

15° + x° = 67°

Solve for x as;

15° + x° = 67°

Subtract 15 both side, we get;

x° = 67° - 15°

x° = 52°

Thus, The value of x will be 52°.

Learn more about the triangle visit:

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#SPJ2

Answer:

x ≤ 3

Step-by-step explanation:

4x + 6 ≤ 18 ( subtract 6 from both sides )

4x ≤ 12 ( divide both sides by 4 )

x ≤ 3

[tex]5x+2 =42 \\\\[/tex]

minus 2 each side.

[tex]5x=40[/tex]

then divide

[tex]x=8[/tex]

Answer:

Frankie's weight change since last week was the opposite of Victor's.

Step-by-step explanation:

Conditional relative frequency is the ratio of the the value of something with the total value for a set in data table.

Option D is the correct option which is, there is likely an association because 0.8 is not similar to 0.33.

Given information

The first column has no label with entries medium shirt, large shirt, total.

The second column is labeled child-sized hat with entries almost equals 0. 67, 0. 2, 0. 48.

The third column is labeled adult-sized hat with entries almost equals 0. 33, 0. 8, 0. 52.

The fourth column is labeled total with entries 1. 0, 1. 0, 1. 0.

Conditional relative frequency is the ratio of the the value of something with the total value for a set in data table.

Association refresh that there is a statistical relationship between two variables.

To check the association we need to calculate the percentage in the data. Here in the given table look for the values of third column.

The value of 0.8 is not similar to the value of 0.33. Thus the an association between the shirt sized and hat size is due to this on similarity.

Thus, the option D is the correct option which is, there is likely an association because 0.8 is not similar to 0.33.

Learn more about the conditional relative frequency  here;

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Answer:

38: n = 3

38. n = 11

39. n = 5

Step-by-step explanation:

A quick trick for those is to make sure the top number is one less than the bottom number. Or that the bottom number is one more than the top number

When you want to practice outlining the first paragraph of an essay after the introduction, the following key points are important: Topic Sentence, Claim, Evidence, and Concluding Statement.

Practicing and preparing an outline for your essay helps in the following ways:

See the link below to learn more about Practicing the Outline to your Essay:

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Answer:

Step-by-step explanation:

I outlined the chronological beginning of the story.

I used a number 2 for the paragraph.

I used letters to indicate details.

I included a topic sentence.

I included important details.

I based the outline on the thesis statement.

The length of the line segment BC is 31.2 units.

Triangle ABC is shown.

Angle ABC is a right angle.

An altitude is drawn from point B to point D on side AC to form a right angle.

The length of AD is 5 and the length of BD is 12.

What is the length of Line segment BC?

The altitude of the triangle is given by;

[tex]\rm Altitude = \sqrt{xy}[/tex]

Where x is DC and y is 5 units.

Then,

The length DC is.

[tex]\rm Altitude = \sqrt{xy}\\ \\ 12 = \sqrt{(DC) \times 5}\\ \\ \sqrt{DC } = \dfrac{12}{\sqrt{5}}\\ \\ [/tex]

Squaring on both sides

[tex]\rm DC = \dfrac{144}{5}\\ \\ DC = 28.8[/tex]

Considering right triangle BDC, use the Pythagorean theorem to find BC:

[tex]\rm BC^2 = DC^2+BD^2\\\\ BC^2 = (28.8)^2+(12)^2\\ \\ BC = \sqrt{829.44+144}\\ \\ BC = \sqrt{973.44}\\ \\ \rm BC = 31.2 \ units[/tex]

Hence, the length of the line segment BC is 31.2 units.

To know more about Pythagoras Theorem click the link given below.

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Answer:

y = 2/5x - 2

Step-by-step explanation:

slope m = 2/5

y-intercept at -2 means (0,-2)

y = mx + b

-2 = 2/5(0) + b

b = -2

then y = 2/5x - 2

Answer:

5

Step-by-step explanation:

6 + 5 + 6 + 8 + 5 = 30

30 / 5 = 6 (mean)

it's most likely the second one

Answer:

0.6 i belive im not sure tbh look at description

Step-by-step explanation:

Simplifying

2x + 3forx = 3

Reorder the terms:

3forx + 2x = 3

Solving

3forx + 2x = 3

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Add '-2x' to each side of the equation.

3forx + 2x + -2x = 3 + -2x

Combine like terms: 2x + -2x = 0

3forx + 0 = 3 + -2x

3forx = 3 + -2x

Divide each side by '3orx'.

f = o-1r-1x-1 + -0.6666666667o-1r-1

Simplifying

f = o-1r-1x-1 + -0.6666666667o-1r-1

Reorder the terms:

f = -0.6666666667o-1r-1 + o-1r-1x-1

[tex]\huge\underline\color{skyblue}{Answer ☘}[/tex]

( Note~ refer the attachment for naming of certain points )

Now given that ,

AB = 12 cm

BC = 8 cm

We know that , angle in a semicircle = 90°

[tex]\purple{Therefore \:, triangle\: ABC\: is \:a \:right \:- \:angled\: traingle.}[/tex]

Now in right angled triangle ABC ,

[tex]\purple{by \:Pythagoras \:theorem}[/tex]

[tex]H {}^{2} = P {}^{2} + B {}^{2} \\ AC {}^{2} = AB {}^{2} + BC {}^{2} \\ AC {}^{2} = 12 {}^{2} + 8 {}^{2} \\ AC {}^{2} = 144 + 64 \\ AC {}^{2} = 208 \\ AC = \sqrt{208} = 14.42cm (approx.)[/tex]

Now , AC is the diameter of the circle and also the hypotenuse of the given right angled triangle.

And ,

[tex]\pink{AC = diameter\: of \:circle = 14.42 cm}[/tex]

[tex] \blue{Therefore \: , radius = \frac{diameter}{2} }\\[/tex]

[tex]\pink{radius = 7.21 cm}[/tex] ( approx. )

hope helpful~

The measure of the angle of depression is 67 degrees.

A helicopter is 665 feet above the ground.

A girl is looking up at the helicopter to form a line.

Her line of sight is 5 feet off the ground.

The distance between the girl and the helicopter is 280 feet.

What is the measure of the angle of depression from the helicopter to the girl’s line of sight?

A helicopter is 665 feet above the ground.

Her line of sight is 5 feet off the ground.

The distance between the girl and the helicopter is 280 feet.

The angle of depression is determined by the following formula;

[tex]\rm Tan\theta = \dfrac{Opposite \ side}{Adjacent \ side}[/tex]

The measure of the opposite side is = 665-5 = 660 feet

The measure of the adjacent side is = 280 feet

Substitute all the values in the following formula;

[tex]\rm Tan\theta = \dfrac{Opposite \ side}{Adjacent \ side}\\ \\ \rm Tan\theta = \dfrac{660}{280}\\ \\ \rm Tan\theta = 2.35\\ \\ \theta = tan{-1}(2.35)\\ \\ \theta = 67 \ degrees[/tex]

Hence, the measure of the angle of depression is 67 degrees.

To know more about Angle of Depression click the link given below.

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Answer:

sorry for the late answer but here is the correct answer according to edge 2022 hope my answer helps :)

Step-by-step explanation:

O also shown as in the picture

where,

now

applying tan 30°

tan theta = perpendicular/base

=>tan 30° = 6/a

(since tan 30° = 1/√3)

=>1/√3 = 6/a

=> a = 6√3

applying cos Q for finding b

=>cos 60° = b/h

(since cos 60° = 1/2)

=>1/2= 6/b

=> b= 12

Answer:

The answer for the first question is 1 question 2 is 3 and question 3 is D

Step-by-step explanation: