Answer:
Grand Theft
Step-by-step explanation:
i really cant see what it says sorry
Answer:
<em>x</em> = 3
<em>y</em> = -7
Step-by-step explanation:
<em>y</em> = -4<em>x </em>+ 5
<em>y </em>= 3<em>x </em>- 16
<u>Substitute </u><u><em>y</em></u><u> in the first equation with 3</u><u><em>x</em></u><u> - 16</u>
3<em>x</em> - 16 = -4<em>x </em>+ 5
+4<em>x </em>+4<em>x</em>
7<em>x</em> - 16 = 5
+16 +16
7<em>x</em> = 21
÷7 ÷7
<em>x</em> = 3
<u>Then, put </u><u><em>x</em></u><u> = 3 in </u><u><em>y</em></u><u> = -4</u><u><em>x</em></u><u> + 5</u>
<em>y</em> = -4(3) + 5
<em>y</em> = -12 + 5
<em>y</em> = -7
<h2>
Answer:</h2>
0 - 17i
<h2>
Step-by-step explanation:</h2>
Given expression;
i⁸⁰ + i³⁸ - i17
To express the expression in the form a+bi;
<em>i. Rewrite the expression such that it contains terms in i²</em>
(i²)⁴⁰ + (i²)¹⁹ - i17
<em>ii. Solve the result from (i) above using the identity i² = -1</em>
We know that the square root of -1 is i. i.e
<em>Squaring both sides gives</em>
<em>=> </em><em />
=> -1 = i²
Therefore,
i² = -1
<em>Substitute i² = -1 in step (i) above</em>
(-1)⁴⁰ + (-1)¹⁹ - i17
<em>(iii) Solve the result in (ii)</em>
We know that the when a negative number is raised to the power of an even number, the result is a positive number. If it is raised to the power of an odd number, the result is a negative number. Therefore,
(-1)⁴⁰ + (-1)¹⁹ - i17 becomes
1 + (-1) - i17
0 - i17
<em>(iv) Write the result from (iii) in the form a+bi</em>
0 - 17i