kpruitt6359
26.05.2021 •
Mathematics
2. ABCD is a parallelogram. If AD = 3x+15 and BC = 21, find AD
Solved
Show answers
More tips
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics Ws 2.1.51 a survey of students at a university shows that 4 out of 5 drink coffee. of the students who drink coffee, 1 out of 6 adds cream to it. if the university has 9,000 students...
- M Mathematics HELPPP ME I WOULD GIVE BRAINLIST...
- B Biology I LL GIVE YOU BRAINLEST! ASAP1. How is salinity affected when melting increases and when precipitation increases....
- M Mathematics Andrea said that if m∠2=40°, then m∠3 must also be equal to 40°. Which justifies Andrea’s statement?...
- E Engineering Why impedance is normalized in smith chart?...
- H History The heliocentric theory became the centerpiece for debate between?...
Ответ:
Your question I don't understand
Ответ:
2
Step-by-step explanation:
3x+15=21 (the opposite side of parallelogram is equal)
3x=21-15
3x=6
x=6/3
so x=2
AD=2
Ответ:
Her average score of the first two tests is (91+71)/2 = 81.
The geometric mean of the first two tests is sqrt(91*71) = sqrt(6461) = 80.38...
Since 81 > 80.38 > 80, Larissa should chose to take the average of her first two tests as her third test score