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andreyandreev [35.5K]
3 years ago
14

How do I find x using a mathematical operation?

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
6 0
I got this. Bottom of the triangle. that flat line is 180 degrees. you have an angle of 120, leaving an angle of 60. if you look at the top, that angle matches the other. so you have 65 degrees on one side, and 60 on the other. so 180-65-60=55. so X=55
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Plz help really bad at geometry
trapecia [35]
ST is a midsegment, which tells you that BD=2(ST) or ST=½BD. Use that to substitute the values and find ST.
BD=2(ST)
29+x=2(2x+31)
29+x=4x+62
29=3x+62
-33=3x
x=-11
Now that we know x, we can substitute that into 2x+31 to find ST
ST=2x+31
ST=2(-11)+31
ST=-22+31
ST=9
7 0
3 years ago
Hugo took a math test with 40 questions. If he got 75% of the answers correct, how many did he answer incorrectly?
Harlamova29_29 [7]

Answer:\

10

Step-by-step explanation:

25 % correct ie, 40 * 25/100

=10

plz mark as brainliest!!

7 0
3 years ago
The range of f(x)=5x2^x is all positive real numbers true or false
creativ13 [48]
Answer: true
Step by step-
6 0
4 years ago
You are at a restaurant and your bill comes to $31.18. The sales tax is 6% and you give the waitress a 20 percent tip on the tot
Vanyuwa [196]

Answer:

$ 0.34   or 34 cents

Step-by-step explanation:

Bill amount = $31.18

sales tax = 6%  of $31.18

             =  0.06 ($31.18)

             = $1.8708

Bill with tax = $31.18+$1.8708

                  = $33.0508

value of tip = 20% of 33.0508

                   =  6.61016

Total  payment  = 33.0508+ 6.61016

                           = $39.66096

                          or $39.66

                         We get change of $40 - $39.66

                                                = $ 0.34        

We shall get back in  cents that will be 34   cents


7 0
3 years ago
Use the drop-downs to complete the solution set of the given inequality.<br> Is - 141 &lt; 0.5<br> v
kotegsom [21]

Answer:

141>0.5

Step-by-step explanation:

I think is how you are supposed to answer it I wasn't sure because the question was a little bit confusing good luck

Mark me the brainliest PLEASE

7 0
3 years ago
Read 2 more answers
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