Answer: 14
Step-by-step explanation:
the question is just asking you to replace the x and y with the corresponding numbers.
x = 4
y = -3
Since x is 4 squared it would be 16.
-4 times -3 equals positive 12.
That would make the equation
(16 + 12) divided by 2
16 + 12 = 28 divide that by 2 and you’ll get 14.
The logarithmic form of 13² = 169 is ㏒₁₃ 169 = 2
<h3>How to determine the logarithmic form</h3>
Using the logarithmic rule , we have that
㏒ₙn = bⁿ
Given 13² = 169
It is important to note that it can be written either in the logarithmic form or in the index form.
In this case, we have written in the index form as .
㏒₁₃ 169 = 2
Thus, the logarithmic form of 13² = 169 is ㏒₁₃ 169 = 2
Learn more about logarithm form here:
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Answer:
21^2 − 14 − 7
Step-by-step explanation:
(3+1)(2+5−7)
(3x+1)({\color{#c92786}{2x}}+{\color{#c92786}{5x}}-7)
(3x+1)(2x+5x−7)
(3+1)(7−7)
(3x+1)({\color{#c92786}{7x}}-7)
(3x+1)(7x−7)
2
Distribute
3
Distribute
again
4
Multiply by 1
5
Combine like terms
Solution
21^2 − 14 − 7
Answer:
Step-by-step explanation:
By the Triangle Angle-Sum Theorem, the angles of a triangle add up to equal 180, regardless of the size of the triangle. We are given the angle measures, so adding them together and setting them equal to 180 is
60 + 3x + x + 20 = 180 and, combining like terms,
4x + 80 = 180. Subtracting 80 from both sides,
4x = 100 so
x = 25
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