-200+ √41292 2 - All the lengths in this question are in centimetres. 2x B F Show that x²+x-72=0. E 4x-5 D x+3 C NOT TO SCALE The diagram shows a shape ABCDEF made from two rectangles. The total area of the shape is 342 cm².
-200+ √41292 2 - All the lengths in this question are in centimetres. 2x B F Show that x²+x-72=0. E 4x-5 D x+3 C NOT TO SCALE The diagram shows a shape ABCDEF made from two rectangles. The total area of the shape is 342 cm².
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
Related questions
Question
![200X (1+ zr% +r%%>=206-46
200 +4* + 2x% = 206.46
2r²% +45 = (-46
2
+400r: 646
r ? + 200-323=0
ZY
ii) Solve the equation 2+200-323 = 0 to find the rate of interest.
Show all your working and give your answer correct to 2 decimal places.
r = -200 ± √ 200² - 4x1(-323
-200 ± √41292
2×1
B
2
r = -200+ √41292
2
C-13 All the lengths in this question are in centimetres.
x+1
Show that x²+x-72=0.
F
E
r = ...!:..
v=1.60217
4x-5
.............
D
x+3
NOT TO
SCALE
The diagram shows a shape ABCDEF made from two rectangles.
The total area of the shape is 342 cm².
[3]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc5ef26a2-4d7d-4381-9a5c-672d0d1c86b7%2F8968e0f0-6428-4f57-aaaf-a733012bea09%2F6ngw7pa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:200X (1+ zr% +r%%>=206-46
200 +4* + 2x% = 206.46
2r²% +45 = (-46
2
+400r: 646
r ? + 200-323=0
ZY
ii) Solve the equation 2+200-323 = 0 to find the rate of interest.
Show all your working and give your answer correct to 2 decimal places.
r = -200 ± √ 200² - 4x1(-323
-200 ± √41292
2×1
B
2
r = -200+ √41292
2
C-13 All the lengths in this question are in centimetres.
x+1
Show that x²+x-72=0.
F
E
r = ...!:..
v=1.60217
4x-5
.............
D
x+3
NOT TO
SCALE
The diagram shows a shape ABCDEF made from two rectangles.
The total area of the shape is 342 cm².
[3]
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning