Mathematics High School

need help with working perimeter and area please

Answers

Answer 1

Answer:

Area = 228 m²

Perimeter = 60 m

Step-by-step explanation:

The figure given shows a rectangle that has a cut triangular portion.

✔️Area of the figure = area of rectangle - area of the triangular cut portion

= L*W + ½*bh

Where,

L = 20 m

W = 12 m

b = 20 - (8 + 8) = 4 m

h = 6 m

Plug in the values

Area = 20*12 - ½*4*6

Area = 240 - 12

Area = 228 m²

✔️Perimeter = perimeter of rectangle - base of the triangular cut portion

= 2(L + W) - b

L = 20 m

W = 12 m

b = b = 20 - (8 + 8) = 4 m

Plug in the values

Perimeter = 2(20 + 12) - 4

= 2(32) - 4

= 64 - 4

Perimeter = 60 m

Related Questions

The area of a rectangle is x2 - 5x – 36. What is the length and width?

Answers

Answer:

[tex](x-9)(x+4)[/tex]

Step-by-step explanation:

We can solve this by factoring [tex]x^2 -5x -36 = (x-9)(x+4)[/tex]

This gives us our two sides because length and width multiplied will give us the area

Please answer correctly I will mark you Brainliest!

Answers

Answer:

5 metres

Step-by-step explanation:

Remember this!

[tex]\sf{Volume \ of \ Rectangle = Length \times Breadth \times Height}[/tex]

Hope it helps :)

a fair number cube with faces numbered 1 through 6 was rolled 12 times the cube landed with the number to face up six times what is the difference between the experiment probability and the theorical probability of the number two landing face up

1/3

1/2

1/6

2/3

Answers

Answer:

ri1/2 you should mark the other person brainliest

Step-by-step explanation:

The O'Neals purchased 2 adult and
4 children's tickets to see the show
and paid $46.50. The Gerrigs paid
$62.25 on their 3 adult and 5
children's tickets. What is the cost of
an adult ticket?
20

Answers

Answer:

See in the picture

Step-by-step explanation:

I solved the valye for the ticket using linear systems, defining X and Y as the ticket value for adults and children.

I write the number seven with a bar on it. I hope you understand it (see 7.5 in the picture)

Given the area of a rectangle is 2x2 - 5x - 12, what is the width if the length is x – 4?

Answers

Answer:

2x + 3

Step-by-step explanation:

So, the equation here is:

[tex]\frac{2x^2 - 5x - 12}{x - 4}[/tex]

And so, using this we can set up our synthetic equation using the dividends as the coefficients of the equation, which are 2, -5, and -12; and the divisor 4, which derives from -4.

It's a bit hard to create a table here, so I'll just write out the values and hope you piece it together.

4 | 2 -5 -12

| 2 8 12

2 3 0

Thus, we are given our coefficients for our desired equation.

2x + 3

And we can ascertain this to be the answer by working the converse.

(2x + 3)(x - 4)

2x² - 5x - 12

help please I don't understand

Answers

I think the answer is t=7 have a nice day!

Kaitlyn opens an account with an initial deposit of $7,250. The account earns 10% interest compounded annually. What is the amount of interest earned after 18 months if no additional money is deposited or withdrawn?

Answers

Answer:

the interest earned amount is $1,114.251

Step-by-step explanation:

The computation of the interest earned is shown below:

But before that the future value is

= Present value × (1 + rate of interest)^number of years

= $7,250 × (1 + 0.10)^1.5

= $7,250 × 1.10^1.5

= $8,634.251

Now the interets earned is

= $8,634.251 - $7,250

= $1,114.251

Hence, the interest earned amount is $1,114.251

Factor the following trinomial:

Answers

Answer:

Step-by-step explanation:

Given

n² - n - 42

Consider the factors of the constant term (- 42) which sum to give the coefficient of the n- term (- 1)

The factors are - 7 and + 6 , since

- 7 × + 6 = - 42 and - 7 + 6 = - 1 , then

n² - n - 42 = (n - 7)(n + 6) ← in factored form

Solution :-

Given,

n^2 - n - 42

We need to factorise it.

So let's start !!

Two factors are -7 and 6.

Therefore,

n^2 - 7n + 6n - 42 n (n - 7) + 6 (n - 7) (n - 7) (n + 6)

fruits are packed in boxes each weighing 2 kg 500 g .how many such boxes can be n loaded kn a van.which can not carry beyond 250kg?

Answers

Answer:

Step-by-step explanation:

Just divided

Please Brainliest me

HURR FAST MARK AS BRAINIEST PLS

Answers

Answer:it would be c

Step-by-step explanation:

Answer:

C: {-2, -1, 0, 1, 2, 3}

Kirsty bought a new TV. The total cost of the TV was £360, in the sale it has 12.5% discount. What is the new price of the TV?

Answers

12.5% of 360 is 45
360-45 is 315
Answer is £315

Help me plz. You have to evaluate the expression.

Answers

Answer:

2+4 + 0+ 1 = $7

Step-by-step explanation:

A line crosses through the points (0,2) and (-10, -16). Which of the following is the slope of the line?
A. 9/5
B. 5/9
C. -9/5
D. 1/3

Answers

Answer:

A). 9/5

Step-by-step explanation:

To find the slope, plug the values of x and y into the slope formula.

y2 - y1 / x2 - x1

-16 - 2 / -10 - 0

9/5

Jason is building a toy box for his little brother Tom. He has painted all six pieces of wood on the outside only. How much area did Jason paint if the lid has a length of 3.5 feet and a width of 3.5 feet and the toy box is 2 feet tall?

Answers

Answer:

52.5 feet

Step-by-step explanation:

3.5x2.5x2=52.5

PLEASSSEEE HELLPPP
What is the product if q and r are positive integers?

A
B
C
D

**I cannot type the answers and part of the question on here, so please refer to the image I attached**

Answers

Answer:

D: 14q + 21√qr

Step-by-step explanation:

We want to find the product of;

(2√q + 3√r) and 7√q.

Where p and q are integers.

Using distributive property, we have;

(2√q × 7√q) + (3√r × 7√q)

>> 14q + 21√qr

Correct option is D

I don’t get it honestly

Answers

Answer:

Step-by-step explanation:

Evaluate 5c – 3d + 11 when c= 7 and d= 8.

Answers

answer: aiuaejaeijaeokjaea;ij;eoiroier;iijw;ije;ipjeja;eoijie;iw

Step-by-step explanation:

Answer:

Step-by-step explanation:

Substitute the values

5(7) - 3(8) + 11

35 - 24 + 11

11 + 11

HELLLLLP ME DON'T GO PAST THIS QUESTION!!!!!! JUST AREA WITH COMPOSITE 3D SHAPES!!!! 100 POINTS!!!!!

Answers

Answer: v+6*8*2 = 96

v = 6*8 = 48

5.5-2 = 3.5

48*3.5 = 168

168/2 = 84

96+84 = 180

The volume is 180 feet.

b) The graph of y = x^2–2x + 5 is
drawn on the axes on the left.
Use the graph to estimate the
values of x when y = 6.
Give your answers to 1 decimal
place.

Answers

Better yet, let y = 6 and solve for x.

6 = x^2 –2x + 5

Now solve for x.

A survey of 5,913 American adults concludes that 53% of them prefer Captain America to Ironman. Find the Margin of Error. Type your answer as a Percentage rounded to 1 decimal.

Answers

Answer:

1.3%

Step-by-step explanation:

Phat = 0.53

1 - phat = 1 - 0.53 = 0.47

Sample size, n = 5913

Assume the confidence level = 95%

Zcritical at 95% = 1.96

Margin of Error = Zcritical * √(phat(1 -phat)) / n

Margin of error :

1.96 * √((0.53 * 0.47) / 5913)

1.96 * 0.0064905

= 0.0127215

= 0.0127215 * 100%

= 1.272%

= 1.3%

Find mAB.

I need help!

Answers

Answer:

Im working on it hold tight!

Step-by-step explanation:

What number must be divided by 15 3/4 so that the quotient is 60?

Answers

The answer is 945

If we take 15.75*60=945

Let’s check our answer

945/15.75=60

Hope it helps

A large clock on a county courthouse has a circumference of about 25 feet. The minute hand extends from the center of the clock to the edge of the clock. How long is the minute hand?

Answers

Answer:

Minute hand = 3.98 feet

Step-by-step explanation:

Circumference of a circle can be calculated by

C = 2 x pi x radius

The minute hand extends from center to the edge means that minute hand is the radius and that is required.

putting values in above equation

C = 25 and pi = 3.14

25 = 2 x 3.14 x radius

radius = 25 / 6.28

Radius = 3.98 feet

Margret works at a bakery. She is paid $300 every week plus $12 an hour for any
overtime she puts in. Which equation best represents the overtime, x, she put in, if she
earned $450 in one week?

Answers

Answer:

300+12x=$450

Step-by-step explanation:

please help i will give you brainliest!!!!!

Answers

Answer:

a:5400

b:5400

Step-by-step explanation:

if you take 3 and multiply it by 30 then add 60 then it equals 5400

Can someone please help i can’t tell which side the base would be and i don’t understand- i will mark brainliest if correct- Thanks !!

Answers

Answer:

Base = 4 units

Height = 8 units

I think the blocks are a unit each and you have to count how much space the triangle is taking up

Answer:

Step-by-step explanation:

Remark

This is one of those things that when you see it, you think that really is something.

The trick is to subtract a smaller right triangle from a larger one.

The base for both triangles is 4 (going from where the right angle is to your right where the lines of the red enclosure meet.

Calculations

The height of the larger triangle is 8

The height of the smaller triangle is 5

Area_L = 1/2 8 * 4 = 1/2 * 32 = 16

Area_S = 1/2 5 * 4 = 1/2 * 20 = 10

Red area = 1/2 * 32 - 1/2*20 = 16 - 10 = 6 units

what is the circumference of the circle if r= 3.5 feet? Use 22/7 for pi

Answers

Answer:

circumference of circle=2πr

2×22/7×3.522

hope it helps.

Answer:2.x22/7x3.5
22

what is the area of this figure?

Answers

Answer:

A = 147 m²

Step-by-step explanation:

The area of this figure is a sum of areas of a rectangle 5 m × 21 m and a triangle with base of 21 m and hight of 4 m.

A = 5×21 + 0.5×21×4 = 105 + 42 = 147 m²

PLEASE HELP MATH 10+ POINTS PLEASE

Answers

Answer:

749

Step-by-step explanation:

8349

Answer:

Step-by-step explanation:

help pls 20 points
this is geometry/algebra

Answers

Answer:

cymath.com

Step-by-step explanation:

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