Answer:
Option C, 5
Step-by-step explanation:
<u>Step 1: Make an expression</u>
Negative five is subtracted from a number the result is 10
n - (-5) = 10
<u>Step 2: Combine</u>
n - (-5) = 10
n + 5 = 10
<u>Step 2: Subtract 5 from both sides</u>
b + 5 - 5 = 10 - 5
n = 5
Answer: Option C, 5
I think it is 6(4x-8)-9y=12 hope this helps :)
Answer:
x = 4.2 cm
Step-by-step explanation:
12.6/14.7 = x/4.9
cross-multiply to solve for 'x':
14.7x = 12.6(4.9)
14.7x = 61.74
x = 61.74÷14.7
x = 4.2
The set of side measurements that could be used to form a right triangle is 3, 4 and 5 option (D) is correct.
What is a right-angle triangle?
It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.
It is given that:
The side length of the triangle is shown in the option:
As we know,
Pythagoras' theorem is the square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides.
Using Pythagoras' theorem:
From option(D):
3, 4 and 5
(3)² + (4)² = 5²
9 + 16 = 25 (True)
Thus, the set of side measurements that could be used to form a right triangle is 3, 4 and 5 option (D) is correct.
Learn more about the right-angle triangle here:
brainly.com/question/3770177
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