Work out area of ABCD

Work Out Area Of ABCD

Answers

Answer 1

Answer:

Area of ABCD = 45.1 cm²

Step-by-step explanation:

From the figure attached,

Area of ABCD = Area of ΔBCD + Area of ΔABD

Area of ΔABD = [tex]\frac{1}{2}(AB)(BD)[/tex]

sin(55°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

sin(55°) = [tex]\frac{AB}{BD}[/tex]

AB = 10sin(55°)

AB = 8.19 cm

cos(55°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

              = [tex]\frac{AD}{BD}[/tex]

AD = 10cos(55°)

AD = 5.74cm

Area of ΔABD = [tex]\frac{1}{2}(8.19)(5.74)[/tex]

                        = 23.51 cm²

Area of ΔBCD = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

                        = [tex]\frac{1}{2}(BD)(CE)[/tex]

tan(38°) = [tex]\frac{CE}{BE}[/tex]

BE = [tex]\frac{CE}{\text{tan}(38)}[/tex]

Similarly, DE = [tex]\frac{CE}{\text{tan}(44)}[/tex]

Since, BE + DE = 10 cm

[tex]\frac{CE}{\text{tan}(38)}+\frac{CE}{\text{tan}(44)}=10[/tex]

CE(1.28 + 1.04) = 10

CE(2.32) = 10

CE = 4.31 cm

Area of ΔBCD = [tex]\frac{1}{2}(10)(4.31)[/tex]

                       = 21.55 cm²

Area of ABCD = Area of ΔBCD + Area of ΔABD

                        = 21.55 + 23.51

                        = 45.06

                        ≈ 45.1 cm²

Work Out Area Of ABCD

Related Questions

please i need help in geometry please help

Answers

Answer:

∠AOB = 112°

Step-by-step explanation:

mentally draw line segment OC

that line bisects 124° so ∠OCB = 1/2(124°) = 62°

ΔOCB is isosceles because OB = OC

∠OBC = 62° because it is equal to ∠OCB

all triangle interior angles add up to 180°

∠BOC = 180° - 62° - 62° = 56°

∠AOC = 56° because OC was a bisector of ∠AOB

∠AOB = 56° + 56° = 112°

Leonard has 5 times as many stamps as Alison. Melissa has 7 more stamps than Leonard. If Alison has q stamps, how many stamps does Melissa have?

Answers

The answer is 35 just do 7x5

What are the x-input values of this relation? (1, 4), (2, 5), (3, 6) Choose all that apply.

1

2

3

4

5

6
pleaseee

Answers

Answer:

1, 2 and 3

Step-by-step explanation:

First you must know that the coordinate of a point is expressed as (x, y) wgere

x serves as the input value (domain)

y serves as the output values

Given the coordinates (1, 4), (2, 5), (3, 6), the input values will be the values at the x coordinates of the points that is 1, 2 and 3.

which of the following are trigonometric identities?

Answers

The answer is a okay
Explanation

Marissa went on a trip and drove her car throughout the day. The graph below shows Marissa's distance from the starting point of her trip for different segments of time

What’s the answer to this please?

Answers

Can u take a picture of the graph

A. The rate of the first segment is increasing, second segment is constant, and third segment is decreasing.

B. Marissa's distance from the starting point at the end of her trip is 40 miles.

What is a graph?

A graph can be defined as a pictorial representation or a diagram that represents data or values.

The graph below shows Marissa's distance from the starting point of her trip for different segments of time.

A. The rate of the first segment at the interval (0,3) is increasing, the rate of the second segment at the interval (3,7) is constant, and the rate of the third segment at the interval (7,10) is decreasing.

B. Marissa's distance from the starting point at the end of her trip is 40 miles.

Learn more about the graphs here:

brainly.com/question/16608196

#SPJ6

The question seems incomplete, the missing part has been below:

A. Describe each of the three segments of the graph in terms of the rate of change in Marissa's distance from the starting point throughout her tip.

B. What is Marissa's distance from the starting point at the end of her trip?

can someone double check this? I got 12 as my answer​

Answers

Answer:

angle C = 69 degrees

Step-by-step explanation:

(6x - 9) + (6x - 24) + (81 - x) = 180

11x + 48 = 180

11x = 132

x = 12

(81 - 12) = 69 degrees

Answer:

69°

Step-by-step explanation:

All angles in a triangle must add to 180°:

(5x+9)+(4x+15)+(x+36)=180

10x+60=180

10x=120

x=12°

The problem asks for the measure of angle C:

C=(81-x)°=69°

You were on the right track because you got the value of x correct. You just didn't answer the problem correctly.

MY LAST QUESTION PLEASE HELP
Find the measures of a and b in the figure.

Answers

Answer:

55

Step-by-step explanation:

62+63=125

180-125=55

15 POINTS 15 POINTS !5 POINTS

Answers

Answer:

I AM SO SORRY but I need that point soo plsss Im sooo sorry

Answer:

The answer is (x+2)²+(y-3)²=29.

Hope it helps uh

Imagine you are starting an office supply business. Your overall costs for supplies are $100. You plan on selling binders for $4 each and pencils for $2 each. Let x represent the number of binders sold and y represent the number of pencils sold.

Answers

Complete question :

Imagine you are starting an office supply business. Your overall costs for supplies are $100. You plan on selling binders for $4 each and pencils for $2 each. Let x represent the number of binders sold and y represent the number of pencils sold. Give an expression for the profit made.

Answer:

(2y + 4x) - $100

Step-by-step explanation:

Given that:

Cost of supply = $100

Supplies :

binders, sales price = $4

Pencils, sales price = $2

Number of binders sold = x

Number of pencils sold = y

The revenue from sale :

(Cost of pencils * number of pencils) + (cost of binders * number of binders)

Revenue = 2y + 4x

Profit, p = Revenue - Cost of supply

p = (2y + 4x) - $100

Please help!! I'm desperate!!
How many terms are in each factor of 5(6 + 4x)?

Answers

Answer:

2

Step-by-step explanation:

What is the equation of the following line? Be sure to scroll down first to see
all answer options,
(0,0) (7,2)

Answers

y=2/7x is the correct answer

Milk that has been boiled and then covered keeps longer than fresh milk. explain​

Answers

Answer: Its also okay for drinking after boiled

Step-by-step explanation:

According to the Department of Food Science in Cornell University, pasteurised or boiled milk has a longer shelf life than raw milk, contrary to the myth that boiling milk will not reduce its lactose content.

Answer:

Milk that has been boiled and then covered keeps longer than fresh milk because the milk is absorbing the heat and when it is covered it will not be spoiled.

Step-by-step explanation:

Phil's Frozen Yogurt Shop
A yogurt cup costs
$3.00 plus Phil
charges $0.50 per
topping.
y= cost $
x= # of toppings

Answers

y = 0.5x + 3 is the equation

tap A fills a tank in 6 hours tap B fills it in 8 hours and tap C empties it in 10 hours. starting with an empty tank and all the three taps are opened find how long it takes to fill the tank?​

Answers

Answer:

It will take 5 hours and 5 minutes to fill the tank

Step-by-step explanation:

Here, we want to get how long it takes to fill the tank

Let us have the capacity of the tank as 120 l

For the first tank, the number of liters filled per hour is 120/6 = 20 l

For the second, the number of liters filled per hour is 120/8 = 15 l

For the draining tap, the amount drained in an hour is 120/10 = 12 l

So total input is (15 + 20) = 35 l

Output is 12 l

Hourly retention is 35-12 = 23 l

To complete total 120 l, time taken will be;

120/23 = 5 5/23

So what this mean is that it will take 5 hours and 5 minutes

Candice opens a savings account with money from her
birthday. She initially put in $75. Each year her
balance increases by 25%. Write an equation to show
how much money Candice will have in their account in
x years.

Answers

Y = 75 * 1.25x.
X would represent the number of years, and y would represent how much money is in the account

help its for someone!!​

Answers

Answer:

b 17/18

Step-by-step explanation:

Solve the one's in bracket then later solve everything together

Rodrigo buys a jacket that is on sale for 1/4 off the original price of 80$.he has a coupon for an additional 10% off.how much does Rodrigo pay for the jacket

Answers

The jacket was $54.00. Since 80 is the price you multiply it by 25% of 80, you would get 80*0.25=20, then you should subtract the values to know the value of 1/4 of the jacket off 80-20=60. Then you multiply 10% from the price of 1/4 off the jacket 60*0.10 and get 6, then you subtract the values 60-6=54. So therefore $54 is the price of the jacket.

Answer:

Price after off =80-  1/4 * 80 = 80-20 = $60

Coupon discount = 60*10/100 = $6

So, he have to pay, 60-6 = $54

A baker recorded the number of batches of

cookies he made on each of seven days. He

baked a different number of batches of cookies

each day. This box-and-whisker plot

summarizes his data.

Number of Cookies

+

9 10 11 12 13 14 15

1 2

3

4

5

6

7

8

The baker baked 20 batches of cookies on the

eighth day. He redraws the box-and-whisker plot

to include his data. Which statement comparing

the new box-and-whisker plot to the original box-

and-whisker plot is NOT true?

A. The median increased.

B. The lower extreme increased.

C. The upper extreme increased.

D. The value of the interquartile range

increased

Answers

Answer:

B. The lower extreme increased.

Step-by-step explanation:

From the original box and whisker plot, the lower extreme (minimum) is 5 ; The upper extreme, maximum is 15.

The number of batches baked on the eight day is 20. This exceeds tbe previous maximum value. Hence, upper extreme( maximum) value of the new plot will change from 15 to 20.

The lower extreme isn't affected as the obtained value isn't below 5.

The median value will Increase and the upper quartile value will also increase. Once the upper quartile value increases, the interquartile range will also increase

Divide 20x^4 by 10x^2​

Answers

Answer:

The answer for this equation is 2x⁶.

Step-by-step explanation:

In order to solve the equation, you have to Take out the Constants.

[tex] \frac{20}{10} {x}^{4} {x}^{2} [/tex]

Now you have to Simplify 20/10 to 2 because 10 divided by 20 is 2.

[tex] {2x}^{4} {x}^{2} [/tex]

And now you have to Use the product rule:

[tex] {x}^{a} {x}^{b} = {x}^{a + b} [/tex]

[tex]2x ^{4 + 2} [/tex]

and lastly, you have to simplify 4 + 2 to 6.

[tex] {2x}^{6} [/tex]

Therefor, the answer for this equation is 2x⁶.

Answer:

i have questine

Step-by-step explanation:

hi i need some help on this, please explain

Answers

Answer:

w = 32

Step-by-step explanation:

Remark

The value of the exterior angle (marked w + 33) = the sum of the two angles not connected to it. w and w + 1

Equation

w + w + 1 = w + 33

Solution

2w + 1 = w + 33      Subtract w from both sides.

2w - w + 1 = 33       Combine

w + 1 = 33               Subtract 1 from both sides.

w = 33 - 1

w= 32        

Identify the type of triangle by looking at the sum of the angle
measures.
145 + 20 + 15 = 180°

Answers

Answer:

Scalene triangle because it's all sides are unequal

Answer:

Scalene triangle

Step-by-step explanation:

3. Determine the value of b.
94
18

Answers

Answer:

56

Step-by-step explanation:

hope this is correct

WHAT IS THE TOTAL SURFACE AREA OF THE SQUARE PYRAMID???? THIS IS THE LAST QUESTION AND I ONLY HAVE 13 POINTS SO PLEASE ANSWER CORRECTLY!!!! :DD WILL GIVE BRAINLIEST AND 5 STARS AND THANKS IF YOUR RIGHT

Answers

Answer:

The answer is 203 cubed in

Step-by-step explanation:

7 x 11 = 77

77 x 2 = 154

7 x 7 = 49

154 + 49 = 203

what is the solution of x+4=10

Answers

Answer:

x=6

Step-by-step explanation:

Subtract 4 from both sides of the equation.
X+4-4 = 10-4
Simplify and subtract he numbers
X=6
And your answer is x=6

I need help immediately ASAP!!!!!!!! it's due today and I don't know what will happen to me. I'm dead​

Answers

Answer:

C. y = 1/2x - 1

Step-by-step explanation:

The slope is 1/2 (line moves up 1 and right 2).

The y-intercept is -1 since that is where the line crosses the y-axis.

NEED ASAP!!!
1. Find the value of x in the diagram below.
120°
x

Answers

x and the 120 degrees are Complementary angles so they are the same. x=120˚

A rock is dropped down from the top of a​ 500-foot cliff. After 1​ second, the rock is traveling 32 feet per second. After 5 ​seconds, the rock is traveling 160 feet per second.
a. Assume that the relationship between​ time, t, and​ speed, s, is linear, and write an equation describing this relationship. Use ordered pairs of the form​ (time, speed).
b. Use this equation to determine the speed of the rock 7 seconds after it is dropped.

Answers

Answer:

A) s=32t

B) 224 ft/s

Step-by-step explanation:

A)

In the form (time, speed), the question gives us the following data: (1,32) and (5,160). Since we are told that the relationship between​ time, t, and​ speed, s, is linear, we know the equation will fit the formula y=mx+c, where m is slope c is the y-intercept and y and x are the co-ordinate values. Plug in (1,32) and (5,160) to find the formula:

y=mx+c

s=mt+c

32=1m+c

c=32-m

160=5m+C

160=5m+32-m

128=4m

m=32

c=32-m

=32-32=0

So our equation is s=32t

B)

s=32t

s=32(7)=224 ft/s

Please help!
Passes through (- 1, - 8) and perpendicular to x + 3y = - 6
What is the equation?

Answers

Answer:

y = 3x - 5  

Step-by-step explanation:

1) First, place the given equation in slope-intercept form, represented by the formula [tex]y = mx +b[/tex], to find the slope. Whatever [tex]m[/tex] or the coefficient of x-term is will be the slope. Isolate y in the equation:

[tex]x + 3y = -6\\3y = -x -6\\y = -\frac{1}{3}x-2[/tex]

So, the slope of that line is [tex]-\frac{1}{3}[/tex]. Lines that are perpendicular have slopes that are opposite reciprocals, thus the slope of the new line will be 3.

2) Now, use the point-slope formula [tex]y-y_1 = m (x-x_1)[/tex] to find the equation of the new line. Substitute real values for the [tex]m[/tex], [tex]x_1[/tex] and [tex]y_1[/tex] in the equation.

Since [tex]m[/tex] represents the slope, substitute [tex]-\frac{1}{3}[/tex] in its place. Since [tex]x_1[/tex] and [tex]y_1[/tex] represents the x and y values of one point the line passes through, substitute the x and y values of (-1,-8) into the formula as well. Then, isolate the y in the resulting equation to put the equation in slope-intercept form and find an answer:

[tex]y-(-8) = 3 (x-(-1))\\y + 8 = 3(x+1)\\y + 8=3x + 3\\y = 3x -5[/tex]

Which of the following equations shows how to correctly calculate the volume, V, in cubic centimeters, of the prism below?

A.V = (9)(12) × 18
B.V = × 9
C.V = × 12
D.V = × 18

Answers

Answer:

A

Step-by-step explanation:

need help with surface area​

Answers

The area surface is “20,736”
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