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makvit [3.9K]
3 years ago
14

Any chance someone can explain this ?

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0

Answer:

(-9, 5)

Step-by-step explanation:

there are 2 variable: x and y

eliminate one of the variables for example y

 -x - y = 4

-2x - y = 13  multiply  this equation by (-1)

-x - y = 4

2x + y = -13

add both equations

2x-x-y+y = 4-13

x = -9

substitute x = -9 in the first equation

-(-9)-y = 4

9 - y = 4  subtract 9 from both sides

-y = 4 - 9

-y = -5 multiply by (-1)

y = 5

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ppositional angle closure in eyes with narrow angles: comparison between the fellow eyes of acute angle-closure glaucoma and nor
skad [1K]

Here is the comparision

Purpose:To compare the topologic features of acute primary angle-closure glaucoma eyes before an attack to those of normotensive eyes, assuming that untreated fellow acute primary angle-closure glaucoma eyes are candidates for an acute attack.

Methods:Under dark-room conditions, ultrasound biomicroscopy was used to examine 50 eyes (12 fellow eyes of acute primary angle-closure glaucoma and 38 normotensive cases with a closure-possible narrow angle). Before any surgical or laser intervention, all eyes were examined and found to have normal pupillary response without the use of any topical drugs. Each eye was examined at four predetermined angle locations. The chamber angle configuration parameters were measured and compared between the two groups.

Result:Appositional angle closures were detected in 27 fellow eyes and 48 normotensive eyes with a closure-possible narrow angle. The incidence differed statistically between the two groups (69.2% in fellow eyes and 48% in normotensive eyes). In the fellow eye group, appositional angle closures beginning at the angle's entrance were more frequently detected. The distance between the iris root and the bottom of the angle varied significantly between groups.

Conclusion:Acute primary angle-closure glaucoma fellow eyes have different topologic features than normotensive narrow-angled eyes, as well as a higher incidence of appositional closure, which may predispose these eyes to an impending acute attack.

Learn more about glaucoma here:

brainly.com/question/1318395

#SPJ4

8 0
1 year ago
Please answer this question correctly for 35 points and brainliest!!
Arturiano [62]
Each family brought 11 chairs. You would just subtract 5 from 49 and divide it by 4 to get 11.
5 0
3 years ago
Read 2 more answers
Can someone help me understand how to do this
lukranit [14]
When it comes to perimeter just add all the sides I’ll insert a picture
3 0
3 years ago
Please help me in part a and b
UkoKoshka [18]
Part A: 47 x 38 + 47 x 62. You have to do your order of operations first. 47 x 38 is 1786. 47 x 62 is 2914. 2914 + 1786 is 4700, your answer.

Part B: 752 + (467+248) = 752 + (715)=1467.
8 0
3 years ago
Are x-(-4) and x+4 equal?​
Dmitry_Shevchenko [17]

Answer:

yes they are

Step-by-step explanation:

If you distribute the minus then the 4 becomes positive.

Have a great day!

If it helped mark me brainliest!

8 0
2 years ago
Read 2 more answers
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