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Assoli18 [71]
3 years ago
8

PLEASE HELP ASAP!!!!!!!!!!!!!!!!

Mathematics
2 answers:
ser-zykov [4K]3 years ago
7 0

Answer:

25

Step-by-step explanation:

180-130=50

50/2=25

Phantasy [73]3 years ago
6 0

Answer:

x = 25 degrees

Step-by-step explanation:

the figure is an isosceles triangle

x + x + 130 = 180

2x + 130 = 180

2x = 180 - 130

2x = 50

x = 25 degrees

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OLga [1]

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I believe it is because it does not start at 0

3 0
3 years ago
If the simple interest on $2,000 for 3 years is $300 then what is the interest rate?
Alona [7]

Answer:

100 dollars a year

Step-by-step explanation:

4 0
3 years ago
545999 rounded to the nearest hundred thousand
mafiozo [28]
546000 u look at the number on the right and if it is greater than 5 u add 1
5 0
3 years ago
Find the coordinates of the circumcenter for ∆DEF with coordinates D(1,3) E (8,3) and F(1,-5).
NemiM [27]

Let the coordinates of the circumcentre O of the triangle DEF be (x, y). Circumcentre of a triangle is equidistant from each of the vertices.

1. Distance OD=distance OE, then:

(x-1)^2+(y-3)^2=(x-8)^2+(y-3)^2.

2. Distance OD=distance OE, then:

(x-1)^2+(y-3)^2=(x-1)^2+(y+5)^2.

Solve the system:

\left\{\begin{array}{l}          (x-1)^2+(y-3)^2=(x-8)^2+(y-3)^2 \\          (x-1)^2+(y-3)^2=(x-1)^2+(y+5)^2         \end{array}\right.,

\left\{\begin{array}{l}          x^2-2x+1+y^2-6y+9=x^2-16x+64+y^2-6y+9 \\          x^2-2x+1+y^2-6y+9=x^2-2x+1+y^2+10y+25         \end{array}\right.,

\left\{\begin{array}{l}          14x=63 \\          -16y=16         \end{array}\right..

Then

x=\dfrac{63}{14} =\dfrac{9}{2} =4.5,\\  \\ y=-1.

Answer: the coordinates of the circumcenter for ∆DEF are x=4.5, y=-1.


5 0
4 years ago
Simplify the expression. 3−9 ∙ 36 ∙ 36
adell [148]

Answer:

the answer is 0

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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