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Agata [3.3K]
3 years ago
5

Help finding the area

Mathematics
1 answer:
notka56 [123]3 years ago
4 0

Answer:

105

Step-by-step explanation:

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HELP PLEASE!! THANK YOU!
dmitriy555 [2]

Answer: choice B, 40.5 degrees

The triangle is isosceles based on the fact that AC = BC (the tick marks are the same). The angles opposite the congruent sides are also congruent

angle A = angle B = x for some unknown number x

The three angles A,B,C add to 180, so,

A+B+C = 180

x+x+99 = 180

2x+99 = 180

2x = 180-99

2x = 81

x = 81/2

x = 40.5

So angle A and angle B are both 40.5 degrees

Check:

A+B+C = 180

40.5+40.5+99 = 180

180 = 180 answer is confirmed

==============================

Edit

The sides with the two tick marks are the same length, so 7x-4 is the same as length as 31

7x-4 = 31

7x = 31+4

7x = 35

x = 35/7

x = 5

Answer is choice B) 5

3 0
3 years ago
The counters in a bag are red or blue one fifth of the counters are red work out the ratio of red counters to blue counters
Natali5045456 [20]

Answer:

The counters in a bag are red or blue. Assume 5 in total.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which graph represents the function?<br><br> f(x)=−x2+x+6
sergiy2304 [10]
First page , second image is the correct answer :)
4 0
3 years ago
Pls help Asap<br> I mark u brainliest
Taya2010 [7]
The answer is B i did this before hope this helps
4 0
2 years ago
What two expressions are equivalent to 6.5 divided by 1.3?
OLEGan [10]

Answer:

65/13

650/130

Step-by-step explanation:

6.5/1.3

times 10: 65/13

times 100: 650/130

3 0
2 years ago
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