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Vlad1618 [11]
3 years ago
12

Rectangle ABCD has vertices at coordinates (0,8), (4,12), (12,4), and D, respectively. Which of the following correctly identifi

es the rectangle's fourth vertex?
Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

the last coordinate would be8,0 because i did it on graph paper and checked it a bunch of time even with my math teacher

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Anyone else 16 years old ????
enyata [817]

Answer: yes lol

Step-by-step explanation:

6 0
3 years ago
A rectangular phone is 3 cm longer than it is wide. The photo is surrounded with a wooden frame that is 2cm wide on all sides. T
alexdok [17]

Answer:

the width is 3.9

the length is 3+w= 3+3.9 =6.9

Step-by-step explanation:

A photo is rectangular with 3cm longer than its width

meaning length is 3+w(3  plus the dimension of the width)

area = length x breadth = (3+w)w=3w+w²=w²+3w

A frame housing the photo is 2cm wide on all sides

meaning the length is 3+w+2

the width is w+2

area of the frame is 52cm²

area of frame = length x breadth

area of frame=  (3+w+2) *  (w+2)

area of frame = (5+w)x(w+2) =w(5+w)+2(5+w)= 5w+w²+10+2w

area of frame= 5w+2w+w²+10= 7w +w²+10=w²+7w+10

area of frame= w²+7w+10

52 = w²+7w+10

w²+7w+10-52=0

w²+7w-42=0

using quadratic formula

x=-b±√b2-4ac/2a

b= 7

c=-42

a=1

x= -7±√7²-4(1)(-42)/2(1) = -7±√49+168/2

x=-7±√217/2= -7±14.7309198627/2

x= -7+14.73/2   x= -7-14.73/2

x=7.73/2       -21.73/2

x= 3.865, -10.865

since a dimension can not be negative e neglect the negative sign

x=3.9

the width is 3.9

the length is 3+w= 3+3.9 =6.9

4 0
3 years ago
What is -34/15 in decimal form
Elan Coil [88]

Answer:

2.26 repeating

Step-by-step explanation:

Convert the fraction to a decimal by dividing the numerator by the denominator.

hope this helpes

be sure to give brainliest

5 0
3 years ago
15 points Question
Mrac [35]

Answer:

18ft²

Step-by-step explanation:

V volume pyramid = 1/3× base area × height

V = 1/3 × B × h

24 ft³ = 1/3(12ft²)(6ft)

when V =54 ft³ h= 9ft B =?

V=1/3Bh

B=V3/h

B=(54×3)/9

B=6×3

B=18 ft²

7 0
2 years ago
Need help ASAP! In the figure, y= 6 units. What is the value of x? A. Z/3 units B. 3z units C. 6 units or D. 3 units
jonny [76]
D

Use the midpoint theorem of the triangle

Line x bisects the 2z and is parallel to line y (corresponding angles

Therefore x = half y
5 0
3 years ago
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