Can someone please help me with this and give an explenation please

Answer:

a) La distancia desde el punto del borde más cercano a la posición del escáner es 5 · √5 km

b) El perímetro del área = 84,823 km

El área de la tierra = 572.555 km²

Step-by-step explanation:

a) La distancia desde el punto del borde más cercano a la posición del escáner viene dada por la fórmula de Pitágoras;

r = √a² + b²

Por lo tanto, la distancia = √ (10² + 5²) = √125 = 5 · √5 km

La distancia desde el punto del borde más cercano a la posición del escáner es 5 · √5 km

b) El perímetro está dado por la fórmula para el perímetro de un círculo que es, perímetro, s = π × D

Dónde;

D = El diámetro de la tierra = 27 km.

El perímetro = π × 27 = 84.823 km

El perímetro del área = 84.823 km

El área está dada por la fórmula del área de un círculo = π × D² / 4

El área = π × 27² / 4 = 572.555 km²

El área de la tierra = 572,555 km².

Answer: 15 rows with 45 seats each

Step-by-step explanation:

Let x = the number of rows, then 3x= the number of seats in a row.

                                   seats × row= total

                                            3x × x=675

                                                3x²=675

                                                  x²=225

                                                   x=15

Answer:

Step-by-step explanation:

let the number of rows=x

seats in each row=3x

so number of seats=x(3x)=3x²

3x²=675

x²=225

x=15

number of rows=15

and seats in each row=15×3=45

Answer:

Loss percentage = 40% (Approx)

Step-by-step explanation:

Given:

Cost price of home = $182,000

Sales price = $110,000

Find:

Loss percentage

Computation:

Loss = Cost price - Sales price

Loss = $182,000 - $110,000

Loss = $72,000

Loss percentage = [Loss / Cost price]100

Loss percentage = [72,000 / 182,000]100

Loss percentage = 39.5604

Loss percentage = 40% (Approx)

I'm not sure what you're asking.... but

18+18=36

36 divided by 9 is equal to 4

the answer is 4

Answer:

1. 80

2. 2400

Step-by-step explanation:

1. what is the change in Dan's total pay for each copy of math is fun he sells?

2. what is Dan's total pay if he doesn't sell any copies of math is fun?

Given

y=80x + 2400

When x=0

y=80(0)+2400

=0+2400

=2400

When x=1

y=80x + 2400

=80(1) + 2400

=80+2400

=2480

change in Dan's total pay for each copy of math is fun he sells is

= 2480 - 2400

=80

2. Dan's total pay if he doesn't sell any copies of math is fun?

y=80x+2400

When x=0

y=80(0)+2400

=0+2400

=2400

Answer:

g= 6

j = 2

r= 4

Step-by-step explanation:

Gummy bears = $1.50 per pound

Jelly beans = $1.00 per pound

Runt = $1.00 per pound

Total cost of the mixture = $15.00

Let

g = quantity of gummy bears

j = quantity of jelly beans

r = quantity of runts

g + j + r=12 (1)

1.5g + 1.0j + 1.0r = 15 (2)

three times as many gummy bears as jelly beans.

g=3j

Substitute g=3j into 1

g + j + r = 12

3j + j + r =12

4j + r =12 (3)

Substitute g=3j into 2

1.5g + 1.0j + 1.0r = 15

1.5(3j) + 1.0j + 1.0r =15

4.5j + 1.0j + 1.0r = 15

5.5j + 1.0r =15 (4)

4j + r =12 (3)

5.5j + 1.0r =15 (4)

Subtract (3) from (4)

5.5j - 4j = 15-12

1.5j = 3

Divide both sides by 1.5

j = 3/1.5

= 2

j = 2

Substitute j = 2 into (3)

4j + r =12

4(2) + r =12

8 + r = 12

r= 12-8

r= 4

Substitute j=2 and r= 4 into (1)

g + j + r=12

g + 2 + 4 = 12

g + 6 = 12

g = 12-6

=6

g=6

g= 6

j = 2

r= 4

Answer:

[tex]Mean = 69[/tex]

[tex]Mode = 66[/tex]

[tex]Median = 69[/tex]

Step-by-step explanation:

Given

The frequency table

Required

Determine the mean, median and mode

Calculating Mean

[tex]Mean = \frac{\sum fx}{\sum f}[/tex]

Where

fx = product of frequency and inches

f = frequency

So;

[tex]Mean = \frac{63 * 2 + 65 * 1 + 66 * 4 + 67 * 3 + 68 * 1 + 69 * 2 + 70 * 2 + 71 * 1 + 72 * 3 + 74 * 2 + 75 * 2}{2 + 1 + 4 + 3 + 1 + 2 + 2 + 1 + 3 + 2 + 2}[/tex]

[tex]Mean = \frac{1587}{23}[/tex]

[tex]Mean = 69[/tex]

Calculating Mode

[tex]Mode = 66[/tex]

Because it highest frequency of 4

Calculating Median

[tex]Median = \frac{\sum f}{2}th\ position[/tex]

[tex]Median = \frac{2 + 1 + 4 + 3 + 1 + 2 + 2 + 1 + 3 + 2 + 2}{2}th\ position[/tex]

[tex]Median = \frac{23}{2}th\ position[/tex]

[tex]Median = 11.5th\ position[/tex]

Approximate

[tex]Median = 12th\ position[/tex]

At this point we, need to get the cumulative frequency (CF)

Inches ---- Frequency ---- CF

63 -------------2------------------2

65 -------------1------------------3

66 -------------4------------------7

67 -------------3------------------10

68 -------------1------------------11

69 -------------2------------------13

70 -------------2------------------15

71 -------------1------------------16

72 -------------3------------------19

74 -------------2------------------21

75 -------------2------------------23

From the above table

Since the median fall in the 12th position, then we consider the following data

69 -------------2------------------13

because it has a CF greater than 12

Hence;

[tex]Median = 69[/tex]

Answer:

Step-by-step explanation:

perp. -1/3

y + 4 = -1/3(x - 3)

y + 4 = -1/3x + 1

y = -1/3x - 3

Answer:

True

Step-by-step explanation:

A perpendicular bisector may be defined as the line segment that intersects some other given line perpendicularly and it also divides it into two congruent or equal parts. Now, two lines are said to be cut at right angles or perpendicular to each other if they intersect in a way that they form ninety degrees to each other.

Constructing a line bisector.

1. Take any line segment of any length.

2. Take your compass and adjust its length to more than the half of the length of the line segment.

3. Placing the compass pointer on one edge at a time cut arcs above and below the line segment.

4. Now mark the points where both opposite arcs meet and join the point to cut the given line segment in two equal parts.

Thus the bisector will divide the line into two equal line segments and it will be at right angles to the given line segment.

Thus it is true that constructing a line bisector is also constructing a perpendicular bisector of the line segment.

Answer:

Perimeter is irrational

Step-by-step explanation:

The attachment is missing but the question is still answerable

Given

[tex]Area = 24200 yd^2[/tex]

Required

Determine if the Perimeter is rational or not

First, we need to determine the sides of the square;

[tex]Area = Length * Length[/tex]

Substitute [tex]Area = 24200 yd^2[/tex]

[tex]24200 = Length * Length[/tex]

[tex]24200 = Length^2[/tex]

Take Square root of both sides

[tex]\sqrt{24200} = Length[/tex]

[tex]Length = 155.563492[/tex]

The perimeter of a square is calculated as:

[tex]Perimeter = 4 * Length[/tex]

[tex]Perimeter = 4 * 155.563492[/tex]

[tex]Perimeter = 622.253968[/tex]

Because the value of perimeter can't be gotten by dividing two integers, then perimeter is irrational

Answer:

see explanation

Step-by-step explanation:

They are collinear if the have the same slope

(2 - -1)/(5 - 1) = 3/4

(5 - 2)/(9 - 5) = 3/4

(5 - -1)/(9 - 1) = 6/8 = 3/4

Step-by-step explanation:

Hey, there!!!

Your question is about showing the points A(1,-1), B(5,2) and C(9,5) as a collinear point.

We generally slope to find weather the points are collinear or not.

So, let's find slope for AB.

[tex]slope(m) = \frac{y2 - y1}{x2 - x1} [/tex]

[tex] slope = \frac{2 + 1}{5 - 1} [/tex]

Therefore, slope of AB = 3/4.

Now, slope of BC.

[tex]slope(m) = \frac{y2 - y1}{x2 - x1} [/tex]

[tex]slope \: (m) = \frac{5 - 2}{9 - 5} [/tex]

Therefore, the slope is 3/4.

now, lastly slope of AC.

[tex]slope(m) = \frac{y2 - y1}{x2 - x1} [/tex]

[tex]slope(m) = \frac{5 + 1}{9 - 1} [/tex]

Therefore, the slope of AC is 3/4.

As all point have same slope. They are collinear point.

Hope it helps...

Answer:

Sally ends at 3 feet below zero point.

Step-by-step explanation:

Let be [tex]h[/tex] the height with respect to zero point, which is represented by the following sum:

[tex]h = \Sigma_{i=1}^{n} h_{i}[/tex]

Where:

[tex]h_{i}[/tex] - i-th travelled height, measured in feet.

In addition, positive sign means ascension, whereas negative sign means descent.

The statement can be translated into the following mathematical identity:

[tex]h = h_{1}+h_{2}+h_{3}+h_{4}[/tex]

[tex]h = 224\,ft+(-131\,ft)+67\,ft -163\,ft[/tex]

[tex]h = -3\,ft[/tex]

Sally ends at 3 feet below zero point.

Answer:

306 miles

Step-by-step explanation:

68 divided by 2 is 34

34 times 9 equals

Answer:

306 miles

Step-by-step explanation:

68 divided by 2 = 34

a.k.a. 34 miles a gallon

34 times 9 miles = 306 miles

William's car can travel 306 miles with 9 gallons in its tank.

Answer:

$9

Step-by-step explanation:

1.) First, divide 42 by 6 since there are six people and the total is $42.

42/6 = 7

2.) Now, add $2 to 7 since 7  was the price of the movie ticket AFTER the $2  were taken off of it

x = 7+2x=9

4.) So, one movie ticket (x) = $9

Answer:

-8

Step-by-step explanation:

First add together the x's.

2x + 1 - 5 = -20

Now add 1 and -5,

2x - 4 = -20

Add 4 to both sides,

2x - 4 + 4 = -20 + 4

2x = -16

Divide both sides by 2,

2x/2 = -16/2

x = -8

Answer:

A rule that the sequence could follow is that the number so for example 1/8 will have to be multiplied by 1/2 so your answer would be 1/16.

Step-by-step explanation:

Answer:

G

Step-by-step explanation:

Area of square = 8 m²

Side * side = 8

         side = √8

         side = 2.82

        Side = 2.8 m

Answer:

G 2.8

Step-by-step explanation:

Answer:

y = 4x

Step-by-step explanation:

Points on the graph:

Slope intercept form:

Working out slope using two of the points:

The equation is now:

Using one of the points to find b:

So the final form is:

Correct answer choice is the last one

Answer:

The Answer would be y=4x

Step-by-step explanation:

I had this on a quiz once

Answer:

r = 3

Step-by-step explanation:

Here in this question, we are told that the surface area of the sphere varies directly as square of radius;

The first thing to do here is to assign variables;

let s be the surface area and r be the radius;

Now;

Since it is a direct proportional relationship;

s = k•r^2

where k represents the constant of proportionality.

now, let’s get k at first.

From the first part of the question, s = 16 and r = 2; Substituting this, we have

16 = k•2^2

4k = 16

k = 16/4

k = 4

Now from the second part of the question, we want to find r when s = 36

Let’s rewrite our equation;

s = k•r^2

where in this case, r = ? and s = 36

36 = 4 * r^2

4r^2 = 36

r^2 = 36/4

r^2 = 9

r = √9

r = 3

Kindly note we do not pick the negative square root value as radius cannot be negative

The surface area of the sphere when the radius is 5 inches is [tex]100\pi[/tex] and this can be determined by using the given data.

Given :

The following steps can be used in order to determine the surface area S of the sphere:

Step 1 - According to the given data, the surface area S of the sphere varies directly as the square of the radius.

Step 2 - The mathematical expression of the above statement is:

[tex]\rm S= k\times r^2[/tex]    --- (1)

where k is the proportionality constant.

Step 3 - Now, substitute the value of r and S in the above expression.

[tex]\rm 36\pi=k \times 3^2[/tex]

[tex]\rm k = 4\pi[/tex]

Step 4 - Now, substitute the value of [tex]\rm k = 4\pi[/tex] and r = 5 in the expression (1).

[tex]\rm S = 4\pi \times 5^2[/tex]

[tex]\rm S = 100\pi[/tex]

For more information, refer to the link given below:

https://brainly.com/question/1631786

Answer:

Step-by-step explanation:

[tex]f(x)=1-3x\\f(-2) = 1-3(-2)\\= 1+6\\=7[/tex]

Answer:

  if one equation has no real roots, the other must have real roots. Hence, at least one equation has real roots.

Step-by-step explanation:

The discriminant of the first equation is ...

  d1 = b^2 -4ac

The discriminant of the second equation is ...

  d2 = b^2 +4ac

__

Suppose the first equation has no real roots. Then ...

  d1 < 0

  b^2 -4ac < 0

  b^2 < 4ac

We know that b^2 is non-negative, so this means 4ac is positive. For that case,

  d2 = b^2 +4ac

is the sum of a positive number and a non-negative number so will be positive. When the discriminant is positive, there are two real roots.

When the first equation has no real roots, the second one must have two real roots.

__

Suppose the second equation has no real roots. Then ...

  d2 < 0

  b^2 +4ac < 0

  b^2 < -4ac

Again, b^2 is non-negative, so -4ac must be positive. For this case, the sum ...

  d1 = b^2 -4ac

is the sum of a non-negative and a positive number, so will be positive. The positive discriminant means there are two real roots.

When the second equation has no real roots, the first one must have two real roots.

One of these equations will have real roots, or not. If not, the other must have (distinct) real roots.

Answer:

y = 2x - 5

Step-by-step explanation:

y = 2x - 5 is in the form

y = mx + b

which is the slope-intercept form.

Answer: Answer below :)

Step-by-step explanation:

Using distance formula: { origin is (0,0)}

√(x - 0)² + (y - 0)²

√x² + y²

The distance between the origin and the point P(x,y) is √(x² + y²).

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

The distance between the origin (0,0) and the point P(x,y) is calculated as below:-

Distance = √(x - 0)² + (y - 0)²

Distance = √(x² + y²)

Therefore, the distance between the origin and the point P(x,y) is √(x² + y²).

To know more about Expression follow

https://brainly.com/question/723406

#SPJ6

Answer:

[tex]\frac{8}{3}[/tex]

Step-by-step explanation:

Given

[tex]\frac{7}{3}[/tex] + 3([tex]\frac{2}{3}[/tex] - [tex]\frac{1}{3}[/tex] )²

= [tex]\frac{7}{3}[/tex] + 3 ([tex]\frac{1}{3}[/tex] )²

= [tex]\frac{7}{3}[/tex] + 3 × [tex]\frac{1}{9}[/tex]

= [tex]\frac{7}{3}[/tex] + [tex]\frac{1}{3}[/tex]

= [tex]\frac{8}{3}[/tex]

Answer:

8/3

Step-by-step explanation:

7/3+3(2/3-1/3)^2

=7/3+3(1/3)^2

=7/3+3(1/9)

=7/3+3/9

=7/3+1/3

=8/3

Answer:

FOR red one = 1/26

FOR black three = 1/26

FOR six of hearts = 1/52

Step-by-step explanation:

TECHNICALLY EVERY CARD WOULD BE 1/52 BUT SINCE THERE R TWO DIFFERENT TYPES OF BLACKS AND REDS THE FIRST TWO ARE 1/26

HOPE I HELPED

PLS MARK BRAINLIEST  

DESPERATELY TRYING TO LEVEL UP

✌ -ZYLYNN JADE ARDENNE

JUST A RANDOM GIRL WANTING TO HELP PEOPLE!

                     PEACE!

Answer:

8640 m, or 8.64 km, assuming it flew in a straight line

Step-by-step explanation:

Distance = rate (or speed) * time (d = rt)

The rate is 4 m/s and the time is 2160 s.

d = rt

d = 4 * 2160

d = 8640 m, or 8.64 km, assuming it flew in a straight line

Answer:

Option (B)

Step-by-step explanation:

Given equation of the absolute function is,

y = |x|

When this function is reflected across the x-axis, new equation of the graph will be

y = -|x|

Now the image of the given function has been scaled vertically by a factor of 7,

Therefore, equation of the new graph will be,

y = -7|x|

Option (B) is the correct option.

Answer:

a) la altura es de 1.6 metros

b) contendría 3750 litros

Step-by-step explanation:

1000 litros = 1m³

8000 litros = 8000/1000 = 8m³

La formula del volumen de un prisma rectangular es:

v = área de la base * altura

el área de la base es:

ab = 2.5m * 2m = 5m²

entonces:

v = 5 * altura

v = 8m³

así que:

8m³ = 5m²* altura

altura = 8m³/5m²

altura = 1.6 metros

1 metro = 100 centímetros

75 cms = 75/100 = 0.75 metros

entonces:

volumen = 5m² * 0.75m

volumen = 3.75m³

3.75m³ = 3.75*1000 = 3750 litros

El agua que contendría sería de:

3750 litros