Answer:
Step-by-step explanation:
hello :
-2x+5y=39
....(*)
2x-3y=-25....(**)
add(*) and (**) : 2y =64 so : y =64/2 = 32
put this value in (*) : -2x+5(32) = 39 ....continu
The answer is b) 70 words per minute. If you divide 245 by 3.5, you get 70. So, the answer is 70 words per minute.
The answer to this Question is A
What is Absolute Value Function or so called Modulus Function or Mod function?
It is a function that takes all real values as input and returns same values but +ve in nature eg if you give input as 2, output will be 2 and if you give input as -2, you will get output 2 again
Solution:
We have expression Ix-5I + 2
we know that I anything I , called as mod of anything, is always greater than or equal to zero so if we take its minimum value as 0 and we get 0 + 2 = 2
means this expression cant be less than 2 hence it will be greater than or equal to 2
because minimum value of mod is 0 and we are adding 2 to it hence overall the expression will be greater than 2 only
To learn more about Absolute Value Function click the link:
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Answer:
The answer to your question is below
Step-by-step explanation:
Process
To answer if they are right triangles or not use the Pythagorean theorem which states that the square of the hypotenuse equals the sum of the square of the legs.
a) 25² = 20² + 7²
625 = 400 + 49
625 ≠ 449 It is not a right triangle
b) 26² = 24² + 10²
676 = 576 + 100
676 = 676 it is a right triangle
c) 13² = 8² + (√10)²
169 = 64 + 10
169 ≠ 74 it is not a right triangle
d) 52² = 48² + 20²
2704 = 2304 + 400
2704 = 2704 it is a right triangle
