Eighth grade
T.3 Area and perimeter: word problems MY
you have prizes to reveals Got
Nancy has a pool in her backyard, and she wants to build a fence around the entire area,
Nancy's backyard is 10 meters wide and 15 meters long. It costs $10.00 per meter to install
a wooden fence. How much would it cost to put a wooden fence around Nancy's backyard?
Submit

Answer:

the answer should be 15 marbles

Answer: 33 mph

Step-by-step explanation:

First find out what 40% of 55 is:

= 40% * 55

= 22 mph

This means that the speed reduces by 22 mph inside the city.

The speed inside the city is therefore:

= 55 - 22

= 33 mph

Answer:

2nd and 3r are the correct options.

Step-by-step explanation:

Answer:

x = 88.333

Step-by-step explanation:

Octagon = 1080 degrees

1080 = 2x + x + 143 + 152 + 116 + 125 + 140 + 139 (Clean up the problem)

1080 - 815 = 3x

265 = 3x (Divide each side by 3)

x = 88.333

Step-by-step explanation:

9x + y = -12

8x -y = 5

17X = -7

x -7/17

8(-7/17) -y = 5

-3.3 - Y = 5

-y = 8.3

Y = -8.3

Answer:

d=2

Step-by-step explanation:

3d + 6 = 12

first subtract 6 from both sides

3d=6

divide by 3 on both sides

d=2

Step-by-step explanation:

When lines are perpendicular to each other

multiplying their gradients(m) will equal to - 1

so , m1 × m2 = -1

1st:Find m1

5x+6y= -6

make y the subject,

6y= -5x -6

[tex]y = \frac{ - 5x - 6}{6} [/tex]

y= -5/6x - 1

because y = mx + c

m1 = -5/6

2nd:find m2

-5/6 × m2 = -1

m2 = 6/5

3rd: substitute m2 and the coordinates into y=mx+c

y=mx+c

-1= (6/5)(-2)+c

-1 = -12/5 + c

-5 = -12 + c

-5+12= c

c = 7

4th: substitute m2 and c into y= mx+c to find the equation the line

y =6/5x + 7 (Ans)

As per slope-intercept form, the equation of the line through point (−2,−1) and perpendicular to 5x + 6y = -6 is 5y = 6x + 7.

The slope-intercept form of a straight line is y = mx + c.

Here, 'm' is the slope and 'c' ix the y-intercept of the given line.

The given equation is 5x + 6y = - 6

Therefore, in slope-intercept form, this equation will be:

y = - 5x/6 - 1

Therefore, the slope of this line is m = - 5/6 and the y-intercept is c = - 1.

The required line is perpendicular to the given line.

Therefore, the slope of the required line is

= - 1/m

= 6/5

Again, the required line passes through the point (- 2, - 1).

Therefore, - 1 = - 2(6/5) + c

⇒ c = - 1 + 12/5

⇒ c = 7/5

The equation of the required line is

y = (6/5)x + 7/5

⇒ 5y = 6x + 7

Learn more  about the slope-intercept form of a straight line here: https://brainly.com/question/14534555

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Answer:

0 visits

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Rewards for signing up = 80 points

Reward per visit = 2.5 points

Total points needed = 105

Let, number of visits = x

So, we can calculate number of visits by using following formula,

80 + (2.5 × X) = 105

2.5X = 105 - 80

2.5X = 25

X = 25 ÷ 2.5

X = 10 visits.

Hence, Olivia needs to make 10 visits in order to earn a free movie ticket

Step-by-step explanation:

Answer:

17

Step-by-step explanation:

130-7.5=122.5

122.5÷7.5≈16R2

 16+1=17

Answer:

thenk you for the points give me brainlist pleasee

Answer:

love you valentines

Step-by-step explanation:

Answer:

75.36mm

Step-by-step explanation:

Answer:

= 18

Step-by-step explanation:

3(11−5)

Answer:

=18

Step-by-step explanation:

I did the quiz 100 percent

The measures of spread include the range, quartiles and the interquartile range, variance and standard deviation. Let's consider each one by one.

Interquartile Range:

Given the Data -> First Quartile = 2, Third Quartile = 5

Interquartile Range = 5 - 2 = 3

Range: 8 - 1 = 7

Variance:

We start by determining the mean,

[tex]\:1+\:2+\:3+\:3+\:3+\:5+\:8 / 7 = 3.57[/tex]

n = number of numbers in the set

Solving for the sum of squares is a long process, so I will skip over that portion and go right into solving for the variance.

[tex]\sum _{i=1}^n\frac{\left(x_i-\bar{x}\right)^2}{n-1},\\\\=> SS/n - 1\\\\=> 31.714/7 - 1\\=> 5.28571[/tex]

5.3

Standard Deviation

We take the square root of the variance,

[tex]\sqrt{5.28571} = 2.29906[/tex]

2.3

If you are not familiar with variance and standard deviation, just leave it.

Answer:

the one above is right lol

Step-by-step explanation:

Answer: v ≥ 6

This means that Adrian needs to do at least 6 visits.

Step-by-step explanation:

First, we know that he gets 20 points just for signing up, so he starts with 20 points.

Now, if he makes v visits, knowing that he gets 2.5 points per visit, he will have a total of:

20 + 2.5*v

points.

And he needs to get at least 35 points, then the total number of points must be such that:

points ≥ 35

and we know that:

points = 20 + 2.5*v

then we have the inequality:

20 + 2.5*v  ≥ 35

Now we can solve this for v, so we need to isolate v in one side of the equation:

2.5*v ≥ 35 - 20 = 15

2.5*v ≥ 15

v ≥ 15/2.5 = 6

v ≥ 6

So he needs to make at least 6 visits.

Answer:

2.5v+20=35

V=6

Step-by-step explanation:

Answer:

110°

Step-by-step explanation:

In triangle AOB

OA = OB (radii of same circle)

[tex] m\angle OAB = m\angle OBA =20\degree [/tex]

[tex] m\angle AOB = 180\degree - (20\degree +20\degree) [/tex]

[tex] m\angle AOB = 180\degree - 40\degree [/tex]

[tex] m\angle AOB = 140\degree [/tex]

[tex] m\widehat {ACB} =m\angle AOB = 140\degree[/tex]

(measure of minor arc is equal to corresponding central angle)

[tex] x\degree = \frac{1}{2} (360\degree - 140\degree) [/tex]

(inscribed angle theorem)

[tex] x\degree = \frac{1}{2} \times 220\degree [/tex]

[tex]\huge\purple {x = 110} [/tex]

Step-by-step explanation:

I got these answers from brainly click on the picture I hope this might help.

Answer:

49°

Step-by-step explanation:

i + 131 ° = 180° ( being co-interior angles)

i = 180° - 131°

i = 49°

Answer:

Step-by-step explanation:

i + 131 ° = 180° ( being co-interior angles)

i = 180° - 131°

i = 49°

Answer:

unlikely

Step-by-step explanation:

It's unlikely because half of the pens are black and red is only 25% of the total.

Answer:

The zeros are the points on the x-axis where the graph intersects.

For factorization, you do (x - the zero) for each zero, and multiply them together.

7. A. The zeros are -2 and 4.

The factorization is (x + 2)(x - 4)

7 B. The zeros are 1 and 3.

The factorization is (x - 1)(x - 3)

Step-by-step explanation:

Answer:

A. What are the zeros of this function? (2 points)

-2, 4

What is the factorization of the polynomial? (2 points)

y = (x +2)(x -4)

B.

What are the zeros of this function? (2 points)

2, 3

What is the factorization of the polynomial? (2 points)

y = (x - 2)(x - 3)

Step-by-step explanation:

Answer:

yx=yz+ax

Step-by-step explanation:

Answer:

Step-by-step explanation:

Pretty Tall.

Tan(72) = opposite / adjacent

The opposite is the height of the building

The adjacent = 100

Tan 72 = 3.077

Tan (72) = opposite / 100

3.077 = opposite / 100                   Multiply by 100

3.077 * 100 = opposite

opposite = 307.7

opposite rounded = 308

Answer:

x>4y−5

Step-by-step explanation:

Answer:

1.335

Step-by-step explanation:

you have to do this equation .445 x 3 =1.335

Answer:12

Step-by-step explanation:

The range is simply the highest number minus the smallest number. Since we are told that 2 members of the family have shoe size of 7 and the range is 5, then Melissa shoes size will be:

= 5 + 7

= 12

Answer:

Find the x-intercepts.

x-intercept(s):

(9,0)

Find the y-intercepts.

y-intercept(s):

(0,−9/2)

List the intersections.

x-intercept(s):

(9,0)

y-intercept(s):

(0,−9/2)

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

x-intercept(s):

(−27/7,0)

y-intercept(s):

(0,−27)

Step-by-step explanation:

Hope it is helpful....

Answer:

the answer is C

Step-by-step explanation:

Answer:

Negative integers, or numbers below zero, are still whole numbers- just not positive whole numbers. This should help you.

Step-by-step explanation:

The statement describes values of x and y such that could be an irrational numbers, the value of x is the square root of an integer, and the value of y is an integer greater than zero.

We have given that the value of x and y,

such that could be an irrational number.

An irrational number, any real number that cannot be expressed as the quotient of two integers.

Negative integers, or numbers below zero, are still whole numbers- just not positive whole numbers.

Therefore we can conclude that

The statement  A, C, or D do not show the irrational numbers

because they all are stated as integers,

which cannot be irrational.

Therefore option B is correct.

The value of x is the square root of an integer, and the value of y is an integer greater than zero.

To learn more about the irrational numbers visit:

https://brainly.com/question/86406

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