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NikAS [45]
4 years ago
6

What is 245-(-57)? answer is worth 15 poibts

Mathematics
2 answers:
svp [43]4 years ago
6 0
When you subtract a negative number, add the values.

245+57=302

Final answer: 302
olganol [36]4 years ago
5 0
302
When you subtract a negative number you just add it as a positive
.
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Find m∠1<br><br> A. 38 degrees<br> B. 42 degrees<br> C. 52 degrees<br> D. 78 degrees
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Let's solve this problem step-by-step.

Let's first establish the following formula:

Angle sum of a triangle = 180°

Also, note that the square shape in the top-right corner of the triangle indicates that it is a right-angle. This means that, that angle is equal to 90°.

Now, let's establish the equation we will be using to solve this problem based on the previous information as displayed below:

m + 38° + 90° = 180°

We will now simply solve the equation in order to obtain the value of ( m ) as display below:

m + 38° + 90° = 180°

m = 180 - 38 - 90

m = 52°

ANSWER:

Therefore, the answer is:

C. 52 degrees.


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