45 people per square kilometer. If the region covers 33 square kilometers, what is the population of the region?

Answer:

Step-by-step explanation:

Since we are not given the dimension. Let us say the shape of the patio is a rectangle with length 30m and width 18m.

Area of the rectangle = Length * Width

Area of the rectangle = 30 * 18

Area of the rectangle = 540m²

This means that 540m² of the patio costs $2276.35. To get the cost of each square metre of patio, we will say;

540m² = $2276.35

1m² = x

cross multiply;

540x = $2276.35

x = $2276.35/540

x = $4.22

Hence each square meter of patio will cost $4.22

Note that the dimension of patio was assumed. Same explanation can be employed for any dimension.

Answer:

Equation of a line through (15, 8) that is perpendicular to the line y =57 x −1 is [tex]\mathbf{y=-\frac{1}{57}x+\frac{157}{19}}[/tex]

Step-by-step explanation:

We need to write an equation of a line through (15, 8) that is perpendicular to the line y =57 x −1.

The equation will be in slope-intercept form: [tex]\mathbf{y=mx+b}[/tex]

Where m is slope and b is y-intercept.

Finding Slope of new line

We are given equation [tex]y =57x-1[/tex] of line, which is perpendicular to the line whose equation we need to find.

If the lines are perpendicular there slopes are inverse of each other i.e [tex]m_1=-\frac{1}{m_2}[/tex]

Slope of given line is m= 57 ( compare the given equation with standard slope-intercept form the value of m is 57

Slope of new line is m= [tex]-\frac{1}{57}[/tex]

Finding y-intercept of new line

Now finding y-intercept (b) for new line. It can be found using point (15,8) and slope m = [tex]-\frac{1}{57}[/tex]

[tex]y=mx+b\\8=-\frac{1}{57}(15)+b\\8=-\frac{15}{57}+b\\b=8+\frac{15}{57}\\b=\frac{8*57+15}{57}\\b=\frac{471}{57}\\b=\frac{157}{19}[/tex]

So, y-intercept b of new line is: [tex]b=\frac{157}{19}[/tex]

Equation of required line

Equation of line having slope m= [tex]-\frac{1}{57}[/tex] and y-intercept  [tex]b=\frac{157}{19}[/tex] is:

[tex]y=mx+b\\\mathbf{y=-\frac{1}{57}x+\frac{157}{19}}[/tex]

So, equation of a line through (15, 8) that is perpendicular to the line y =57 x −1 is [tex]\mathbf{y=-\frac{1}{57}x+\frac{157}{19}}[/tex]

Answer:  Part 1: y =10x+50

Part 2:  Jordan’s total cost = $90

Step-by-step explanation:

Given: Price of each large balloon = $25

Price of each small balloon = $10

Price of 2 large balloons = 2 (Price of each large balloon)

= $2 (25)

= $50

Part 1: Total cost = (Number of small balloons)(Price of each small balloon)  +  (Number of large balloons)(Price of each large balloon)

Let x = Number if small balloons , y=  total cost Jordan must pay in dollars.

Then, y= (x)(10)+(2)(25)

⇒ y =10x+50

Part 2: If she purchases 4 small balloon animals, put x=4

Then, y= 10(4)+50=40+50= 90

i.e. Jordan’s total cost = $90

Answer:

5 hours

Equations:

first company: 17x+15

second company: 20x

Proof:

17(5)+15 => 85+15 => 100

20(5) => 100

Answer:

5 hours

Step-by-step explanation:

Answer:

Step-by-step explanation:

an isosceles triangle two adjacent sides are equal

so AB = BC

3x-4 = 5x-10

2x = 6

x= 3

so ,

3 ( 3 ) -4 = 5

5 ( 3 ) -10 = 5

Answer:

I'm pretty sure it's 16

Step-by-step explanation:

it measures up with the other triangles side

Answer:

4, 11

Step-by-step explanation:

Q# 13 :

Let the first number be 'x'

the 2nd number would be ' x + 7'

x + x + 7 = 15

2x= 15-7

x= 8/2

x= 4

2nd number: x + 7

                    = 4+7

                    = 11

Answer:

qs,wdnfm.ew fw v

Step-by-step explanation:

wdmc vw.mv / n,v

Answer:

Step-by-step explanation:

X is -18

Answer:

1

Step-by-step explanation:

61.26=61

59.593=60

61-60=1

Answer:

1

Step-by-step explanation:

61.26 rounded to the nearest whole number = 61

59.593 rounded to the nearest whole number = 60

61 - 60 = x

61 - 60 = 1

x = 1

Answer:

1a) .85/1.20 = 85/120 = 17/24. 2a) 17:24

1b) 24000/80 = 2400/8 = 300/1. 2b) 300:1

_______________________________

I believe this is what the problem is asking.

Answer:

y = x - 1

Step-by-step explanation:

If it's parallel to x - y = 7, that means the slope of that equation is the slope for the equation you're looking for.  

To get the slope, you need to put the given equation into slope intercept form, so move x to the other side. You should get: -y = 7 - x

Then, to get the y positive, divide by -1:     y = -7 + x

Slope intercept form is as follows: y = mx + b, so whatever the number is in front of x is your slope. In this instance, your slope is 1.

You now have your slope, and a point in which your new line passed through. Using slope intercept form, y = mx + b, if you substitute in what you know, you can find your answer. Right now you know y, m, and x, and you're looking for b.  

x=1; y=0; m=1.  

So, substituting, you'd get 0 = (1)(1) + b

0=1+b     Solve

You should get b= -1, leaving your final answer as y = x - 1

y=x+1 is the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

We need to find slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7.

The slope will be same as it is parallel.

x - y = 7.

-y=7-x

y=x-7

Slope is 1.

Now equation of line passing through (1,0)

0=1(1)+c

c=-1

y=x-(-1)

y=x+1

Hence y=x+1 is the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7.

To learn more on slope of line click:

https://brainly.com/question/14511992

#SPJ2

Answer:

2a^2 b^3(3a^2 b^3 - 4ab^2 + 6)

_44_3_10 4 0 ×53 ×<9 =02947</245

Answer: Two sides of a triangle have lengths 2 and 7. Find all possible lengths of the third side. Show Answer. difference $$< x <$$ sum $$7 -2 < x < 7+2$$ Answer: $$5 < x < 9$$ Problem 7. Two sides of a triangle have lengths 12 and 5. Find all possible lengths of the third side

Step-by-step explanation: i hope i helped

Answer:

4. The solution to the system of equations is: (2,-1)

5. The solution to the system of equations is: (3,5)

Step-by-step explanation:

4. What is the solution to the system of equations?

[tex]2x+3y=1\\-3x+4y=-10[/tex]

Let:

[tex]2x+3y=1--eq(1)\\-3x+4y=-10--eq(2)[/tex]

Multiply eq(1) by 3 and eq(2) by 2 and add both equations

[tex]6x+9y=3\\-6x+8y=-20\\---------\\0x+17y=-17\\y=\frac{-17}{17}\\y=-1[/tex]

So, value of y=-1

Now finding the value of x bu putting value of y in eq(1)

[tex]2x+3y=1\\2x+3(-1)=1\\2x=1+3\\2x=4\\x=\frac{4}{2}\\x=2[/tex]

So, value of x=2

The solution to the system of equations is: (2,-1)

5. What is the solution to the system of equations?

[tex]y=2x-1\\6x-y=13[/tex]

Let:

[tex]-2x+y=-1--eq(1)\\6x-y=13--eq(2)\\------\\4x=12\\x=\frac{12}{4}\\x=3[/tex]

So, value of x=3

Putting value of x in equation 1 to find value of y

[tex]y=2x-1\\y=2(3)-1\\y=6-1\\y=5[/tex]

So, value of y=5

The solution to the system of equations is: (3,5)

Answer:

8

Step-by-step explanation:

Measure of one interior angle of a regular polygon of n sides:

(n - 2)180/n

Measure of one exterior angle of a regular polygon if n sides:

360/n

"the interior angle is thrice the exterior angle"

(n - 2)180/n = 3 * 360/n

(n - 2)180 = 3 * 360

n - 2 = 3 * 2

n = 8

The number of sides is 8.

Answer:

The relationship between the angles would be parallel because they are the exact same degree now if they were different degrees their relationship would be perpendicular but with them being the same the answer is parallel

Answer:

Perimeter = 15

Step-by-step explanation:

We are told that the length of each of the 3 sides of the triangle are consecutive odd integers.

Thus means that we can write the 3 terms as;

(x - 2), x, (x + 2)

Thus, perimeter is;

P = (x - 2) + x + (x + 2)

P = 3x

If an angle is 120°, it means that the corresponding side that is directly opposite the angle is the largest side of the triangle.

Thus, this side is (x + 2)

Using cosine rule, we have;

(x + 2)² = x² + (x - 2)² - 2(x(x - 2))cos 120

Expanding, we have;

x² + 4x + 4 = x² + x² - 4x + 4 - (2x² + 4x)(-½)

This reduces to;

4x = x² - 4x + x² - 2x

2x² = 10x

2x = 10

x = 10/2

x = 5

Thus, other sides are;

(x - 2) = 5 - 2 = 3

And (x + 2) = 5 + 2 = 7

So,perimeter is;

P = 3x = 3 × 5 = 15

Answer:

the answer is 2

Step-by-step explanation:

Bcz u choseine option and lose the next bet benefit

Answer:

15%

Step-by-step explanation:

Trust me, i took the K12 test and got it correct :)

Answer:

1, 3

Step-by-step explanation:

1. x > x

Technically, one number cannot be more than itself. It can only equal to itself.

3. –4 + x > –2 + x

If you minus x from both sides of the equation, it becomes:

-4 > -2

This is not true no matter what x is, thus it has no solution.

4. x – 2 < x + 3

If you add 2 on both sides, it becomes:

x < x + 5

This inequality is possible and has infinitely many solutions.

Note: I will update this answer and address Question 2 once the inequality sign is given :)

Answer:

No, it does not

Step-by-step explanation:

Answer:

Step-by-step explanation:

We can see y-intercept is 1 as per point (0, 1)

Using another point to find the slope (-3, -5)

So the function is:

Answer:

2/5

Step-by-step explanation:

Answer:2/5

Step-by-step explanation:

Answer:

Step-by-step explanation:

8C2  * 6C2

============

14C4

8C2 = 8*7/1 * 2 = 28

6C2 = 6*5 / 1*2 = 15

14C4 = 14*13 *12 * 11 / (1 * 2 * 3 * 4) = 1001

28 * 15 / 1001 = .4195

Answer:

C

Step-by-step explanation:

I believe this is the correct one.

Answer:

C

Step-by-step explanation:

C has the point (-2, -3.5) and the point (0.5, -4)

Answer:

(-8,-4)

Step-by-step explanation:

Answer:

EASY (-8,-4)

Step-by-step explanation:

Answer: Add 11 to the other side of the equation, giving you 81. Then, since x is square you are going to need to square root both sides ([tex]\sqrt{x}[/tex] this symbol). When you do that, you should get what x is! Let me know if you still need help!

Answer:

150 units woild fill the volume of the prism.