I think this is right maybe
1) tan 41°= 30cm divide by y cm
y= 30 divide by tan-1 41°
-8=-(x+4)
-8=-x-4
Move x to one side and add 8 to both sides
X=4
Answer:
a) 3₁₀
b) 6₁₀
c) 7₁₀
f) 19₁₀
i) 181₁₀
Step-by-step explanation:
<u>Binary to Decimal Conversion (Positional Notation Method)</u>
- Multiply each digit by the base (2) raised to the power dependent upon the position of that digit in the binary number.
- Sum all the values obtained for each digit.
- Express the number as a decimal number by placing subscript 10 after it.
For a binary number with 'n' digits:
- The right-most digit is multiplied by 2⁰
- The left-most digit is multiplied by

For example, to convert the binary number 111001₂ into a decimal:

Multiply each digit by the base (2) raised to the power as indicated above and sum them:



Finally, express as a decimal number ⇒ 111001₂ = 57₁₀
<u>Question (a)</u>

Therefore, 11₂ = 3₁₀
<u>Question (b)</u>

Therefore, 110₂ = 6₁₀
<u>Question (c)</u>

Therefore, 111₂ = 7₁₀
<u>Question (f)</u>

Therefore, 10011₂ = 19₁₀
<u>Question (i)</u>

Therefore, 10110101₂ = 181₁₀
Answer:
4
Step-by-step explanation:
2 + 2 = 4