Find the product. Write the answer in standard form.(-1 + 7i)(-1 – 7i)

Approximate the number using a calculator. Round your answer to three decimal places.5-1.9

Find the sum or difference. Write the answer in standard form.(-5 + 4i) – (5 + 7i) + (4 – 9i)

 = 5 – 2x

Solve each equation.x2 – 14x + 74 = 0

Evaluate or simplify the expression without using a calculator.log 

Determine whether the equation has a graph that is symmetric with respect to the y-axis, the x-axis, the origin, or none of these.x2 – y2 = 7

What will the following code output if the variable score is set to 75? if (marks >= 90) {    System.out.println(“A”);} else if (marks >= 80) {    if (marks > 85 && marks < 90) {        System.out.println("B+");    } else {        System.out.println("B");    }} else if (marks >= 70) {    if (marks >= 75) {        System.out.println(“C+”);    } else {        System.out.println(“C”);    }} else {    System.out.println(“D or lower”);}

Fill in the blanks of the Java code statements shown below to find the area of the right triangle shown above. Note that the formula for the area of a right triangle is 0.5 times base times height. These are the steps of the program: 1.) Declares the 3 variables needed for this problem: base for the base of a triangle, height for the height of a triangle, and area for the area of a triangle, and initialize them to the values shown in the triangle above. 2.) Writes the code that uses the base and height variables to compute the area of a triangle.3.) Prints the following results with two decimal places precision on the console: “The area of a triangle is aa.aa” Where: aa.aa is the numerical value of the area with two decimals only.   Java Code: base = 17.52; height = 10.23; area = 0.5 * base * height ;..(“The area of a triangle is f”, ); Notes: To receive credit for this question Java code entered must be correctly spelled. For each blank space, the right answer is a single identifier, keyword, or up to 4 characters placeholders.

Given the following code snippet, what will be the output? int num = 25;double pi = 3.14159;System.out.printf(“Integer: %d, Pi: %.2f%n”, num, pi);