5 Let A(-2,5) and B(5,0) be the endpoints of AB. What is the length of the segment?

Answer:

k = 20

Step-by-step explanation:

simplify both sides of the equation, then isolate the variable.

hope it helps you!:))

Answer:

i think x = 7 y = 11

Step-by-step explanation:

have a nice dae

Answer:

i think u forgot to add the picture bro?

Step-by-step explanation:

Answer:

Hi! The other answer is not correct to your question

The answer to your question is n= \(\frac{dc}{(c+d)(c-d)}\)

Step-by-step explanation:

Solve the rational equation by combining expressions and isolating the variable n

※※※※※※※※※※※※※※※

⁅Brainliest is greatly appreciated!⁆

- Brooklynn Deka

Hope this helps!!

Answer:

8 questions.

Step-by-step explanation:

100 - 2x = 84

-2x + 100 = 84

-x + 50 = 42

x - 50 = -42

x = 8

Trevor answered 8 questions incorrectly.

Hope this helps!

Answer:

8

8Step-by-step explanation:

100-2x=84

subtract 84 from both sides

16-2x=0

add 2x to both sides

16=2x

divide both by 2 to get x

x=8

hope this helped

Answer:

a) -1/3 b) 3 c) y=3x-10

Step-by-step explanation:

Answer:jh

43

Step-by-step explanation:

Trust meTrust meTrust me ps

Answer:

B

Step-by-step explanation:

The answer is B because we can estimate by seeing that: 3 x 3 = 9, so henceforth the answer must be between 3 and 4, so it must be B.

Step-by-step explanation:

Side-Angle-Side is a rule used to prove whether a given set of triangles are congruent. The SAS rule states that: If two sides and the included angle of one triangle are equal to two sides and included angle of another triangle, then the triangles are congruent.

The option that is next in the series will be option D. The Pentagon.

The next step in the series will be option D. The first circle has a vertical line with two points while the second circle has a triangle with three points.

The third circle has a shape with four points, and given this series, we can predict that the fourth circle will have a shape with five points. Option D satisfies this condition as it has a pentagon with five sides. There are five dotted points that prove that the figure is a pentagon.

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Answer:

The correct t answer are 1/3 and 2/6

I'm 100000000% sure the answers are 1/3 and 2/6.

Answer:

x = 3

Step-by-step explanation:

4x + 3 = 18 - x ( add x to both sides )

5x + 3 = 18 ( subtract 3 from both sides )

5x = 15 ( divide both sides by 5 )

x = 3

Answer:

find the width and length

Step-by-step explanation:

Step-by-step explanation:

the surface areas are always the sum of the areas of the individual sides and base area.

so, all we need to do here is calculating the areas of triangles, rectangles (actually squares) and a hexagon.

the area of a triangle is

baseline × height / 2

or with Heron's formula when we have all sides

s = (a+b+c)/2

area = sqrt(s×(s-a)×(s-b)×(s-c))

the area of a rectangle is

length × width

for a square that is then

side × side = side²

and the area of a regular hexagon can be created again as sum of multiple sub-shapes. but ultimately it is

3 × sqrt(3) × side² / 2

1.

square base area : 10×10 = 100 cm²

lateral areas :

one triangle is 10×13/2 = 65 cm²

4 triangles are then 4×65 = 260 cm²

total surface area :

100 + 260 = 360 cm²

2a.

3 lateral triangles :

3 × 8×10/2 = 120 units²

base area (Heron's, as all 3 sides are 8 units) :

s = 3×8/2 = 12

area = sqrt(12×4×4×4) = sqrt(3×4×4×4×4) = 16×sqrt(3)

total surface area :

120 + 16×sqrt(3) = 147.7128129... units²

2b.

4 lateral triangles :

4 × 8×10/2 = 160 units²

base area : 8×8 = 64 units²

total surface area :

160 + 64 = 224 units²

2c.

6 lateral triangles :

6 × 8×20/2 = 480 units²

base area :

3×sqrt(3)×8²/2 = 96×sqrt(3)

total surface area :

480 + 96×sqrt(3) = 646.2768775... units²

2d.

base area : 16² = 256 units²

4 lateral triangles. but we need to get their height first.

Pythagoras :

(16/2)² + 24² = height²

8² + 24² = height²

64 + 576 = height²

height² = 640

height = sqrt(640) = sqrt(64×10) = 8×sqrt(10)

4 triangles are

4 × 16×8×sqrt(10)/2 = 256×sqrt(10) units²

total surface area :

256 + 256×sqrt(10) = 256×(1 + sqrt(10) = 1,065.543081... units²

Work Shown:

r = 6 = radius

V = volume of a sphere of radius r

V = (4/3)*pi*r^3

V = (4/3)*pi*6^3

V = 904.77868423386

V = 904.8

I used my calculator's stored version of pi (instead of something like pi = 3.14)

The units "cubic meters" can be abbreviated to m^3 or \(m^3\)

The volume of the given sphere is 904.8 cubic meters. Thus, option B is the answer.

         The volume of a sphere can be calculated using the formula:

V = \(4/3 * \pi * r^3\),

Where V is the volume and r is the radius of the sphere.

\(\pi\) = 3.14

The radius of the sphere (r) = 6m

Plugging in the given radius of 6m into the formula, we get:

V = (4/3) * \(\pi\) * (6^3)

V = 1.333 * \(\pi\) * 216

V = 1.333 * 3.14 * 216

V = 4.1866 * 216

V = 904.8 cubic meters

Therefore, when the radius of the sphere is 6m, the volume of the sphere is 904.8  cubic meters.

To practice more problems based on the sphere:

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Answer: 5

Step-by-step explanation:

To find the regression's prediction for a classroom with 22 students, you can use the given OLS regression equation: Test-Score = 520.4 - 5.82 × CS. In this equation, CS represents the class size.

Since the class size is 22 students, you can plug this value into the equation:

Test-Score = 520.4 - 5.82 × 22

Test-Score = 520.4 - 127.04

Test-Score ≈ 393.36

So, the regression's prediction for that classroom's average test score is approximately 393.36.

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The answers to the questions involving trigonometry are: 90, BC/AB ÷ BC/AB = 1, g = 6.5, <I = 62 degrees, h= 13.8, 12.0, x = 6.8, x = 66.4, 160.6, The pole = 6.7

Trigonometric ratios are special measurements of a right triangle, defined as the ratios of the sides of a right-angled triangle.  There are three common trigonometric ratios: sine, cosine, and tangent

For page 3 question 3,

a) <A + <B = 90 since <C = right angle

b) SinA = BC/AB and CosB = BC/AB

The ratio of the two angles BC/AB ÷ BC/AB = 1

I notice that the ratio of sinA and cosB gives 1

b) The ratio of CosA and SinB will give

BC/AB ÷ BC/AB

= BC/AB * AB/BC = 1

For page 5 number 3

Tan28 = g/i

g/12.2 = tan28

cross multiplying to have

g = 12.2*tan28

g = 12.2 * 0.5317

g = 6.5

b) the angle I is given as 90-28 degrees

<I = 62 degrees

To find the side h we use the Pythagoras theorem

h² = (12.2)² + (6.5)²

h² = 148.84 +42.25

h²= 191.09

h=√191.09

h= 13.8

For page 6

1) Sin42 = x/18

x=18*sin42

x = 18*0.6691

x = 12.0

2) cos28 = 6/x

xcos28 = 6

x = 6/cos28

x [= 6/0.8829

x = 6.8

3)  Tan63 = x/34

x = 34*tan63

x= 34*1.9526

x = 66.4

4) Sin50 123/x

xsin50 = 123

x = 123/sin50

x = 123/0.7660

x =160.6

5)  Sin57 = P/8

Pole = 8sin57

the pole = 8*0.8387

The pole = 6.7

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If this is sample data, the sample variance is 75.410  and the sample standard deviation is 8.68 .

The term variance refers to a statistical measurement of the spread between numbers in a data set. More specifically, variance measures how far each number in the set is from the mean (average), and thus from every other number in the set.

Variance is a statistical measurement used to determine how far each number is from the mean and from every other number in the set. You can calculate the variance by taking the difference between each point and the mean. Then square and average the results.

If this is population data, the population variance is 65.98  and the population standard deviation is8.12  .

If you were to recalculate the variance and standard deviation with the 80 instead of the 72,

Sample variance = 43.125

Sample standard deviation = 6.567

Population variance =  37.734

Population standard deviation = 6.14

Step-by-step explanation

Dats given are 88, 96, 72, 84, 95, 100, 92 and 90

Mean,  μ  = 89.625

Number of data, N = 8

Sample variance s2 =  Σ  ( xi -  μ  )2 / N-1

N -1 = 8-1 = 7

Given that xi -  μ  for each data are  -1.625, 6.375, -17.625, -5.625, 5.375, 10.375, 2.375  and 0.375

Σ  ( xi -  μ  )2  =  -1.6252 + 6.3752 + -17.6252 +-5.6252 + 5.3752 + 10.3752 + 2.3752 + 0.3752 = 527.870

Sample variance, s2 =  8−1−1.6252+6.3752+17.6252+5.622+5.3752+10.3752+2.3752+0.3752

 =  7527.870  = 75.410

sample standard deviation s =  75.410

= 8.68

Population variance ,  σ  2 =  Σ  ( xi -  μ  )2 / N

Population variance ,  σ  2  =  81.6252+6.3752+17.6252+5.6252+5.3752+10.3752+2.3752+0.3752

 =  8527.870

 = 65.96

Population standard deviation,  σ   =  65.98  = 8.12

If 72 is recalculated with  80 , datas are 88, 96, 80, 84, 95, 100, 92 and 90  888+96+80+84+95+100+92+90

New mean,  μ   =  888+96+80+84+95+100+92+90

= 90.625

The deviations from the mean ( xi -  μ  ) are -2.625, 5.375, -10.625, -6.625, 4.375 , 9.375, 1.375 and -0.625

Σ  ( xi -  μ  )2  = -2.6252 + 5.3752 + -10.6252+ -6.6252 + 4.3752 + 9.3752 +  1.3752 + -0.6252 = 301.875

Sample variance s2 =  Σ  ( xi -  μ  )2 / N-1

Sample variance s2  =  8−1−2.6252+5.3752+10.6252+6.6252+4.3752+9.3752+1.3752+0.6252

=  7301.875

  = 43.125

Sample standard deviation s =  43.125

 = 6.567

Population variance,  σ  2 =  Σ  ( xi -  μ  )2 / N

Σ  ( xi -  μ  )2  = -2.6252 + 5.3752 + -10.6252+ -6.6252 + 4.3752 + 9.3752 +  1.3752 + -0.6252 = 301.875

Population standard deviation,  σ^2   =   sqrt(37.734)

​Population standard deviation,  σ   = 6.14

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Answer:

It should.

Step-by-step explanation:

If a nearby city is losing people then the large city should try to help.  

Answer:

D. 6 feet

Step-by-step explanation:

The volume of a rectangular prism can be found by using L * W * H, or B * H

-> The length (L) times the width (W) is equal to the base (B)

V = B * H

528 = 88H

6 = H

Check the picture below.

\(\cfrac{17.5+14}{17.5}~~ = ~~\cfrac{x}{12.5}\implies \cfrac{(17.5+14)(12.5)}{17.5}~~ = ~~x\implies 22.5=x\)

Answer:

− 9 m + n + 5

Step-by-step explanation

I did the quiz

Answer:

Start your streak by answering any question. You'll get bonus points from day 2.