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e-lub [12.9K]
3 years ago
15

*help please thanks .*

Mathematics
1 answer:
Nikolay [14]3 years ago
5 0

Answer:

i hate my self infinity times

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What is BC ACD EB.....
jek_recluse [69]

Answer:

BC=10 cm BCD= 90 degrees EB= 5 cm

4 0
3 years ago
What is the solution of the inequality?
Shalnov [3]
X/9 > 9
multiply both sides by 9
x > 81

answer is 
b.
 x > 81
6 0
3 years ago
PLEASE I NEED HELP ASAP<br> D=<br> E=<br> F=
AnnZ [28]

Answer:

d=90 e=27 f=153

Step-by-step explanation:

since 90 is one half of 180 if d was any bigger or smaller the the information given would be incorrect.

e is 27 since vertical angles

f is 157 since a line is equal to 180 and since e is 27 you subtract 27 from 180

8 0
3 years ago
A proportional equation does not have a what?
Jet001 [13]
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6 0
2 years ago
Question 13
Mrac [35]

Answer:

71.6 degrees

Step-by-step explanation:

Given the vectors

u= <8,4> v = <9.-9> (5 points)

u*v = (8, 4)*(9, -9)

u*v = 8(9)+(4)(-9)

u*v = 72 - 36

u*v = 36

|u| = √8²+4²

|u| = √64+16

|u| = √80

|v| = √9²+9²

|v|  = √81+81

|v|  = √162

Using the formula

u*v = ||u||v| cos theta

36 = √80(√162)cos theta

36 = √12960 cos theta

cos theta = 36/√12960

cos theta = 36/113.8

cos theta = 0.3162

theta = arccos(0.3162)

theta = 71.56 degrees

Hence the angle between the given vectors to the nearest tenth of a

degree is 71.6 degrees

5 0
2 years ago
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