Answer:
Step-by-step explanation:
The slant height of one side of this pyramid is 5, and the base of this side is 4. Thus, the area of one slant side is (1/2)(5)(4) = 10 units^2.
There are 4 such sides. Thus, the total slant surface area is 4(10 units^2), or 40 units^2.
If you also want to include the base area, the total would be
40 units^2 + 16 units^2 = 56 units^2.
The expression obtained after solving the given expression is,
<h3>What is a BODMAS rule?</h3>
For the Bracket, Order, Division, Multiplication, Addition, and Subtraction rules, BODMAS stands for Bracket, Order, Division, Multiplication, Addition, and Subtraction.
Given expression ;
9(5x + 1) ÷ 3y
Follow the BODMAS rule;
Step 1; Divide

Step 2; Multiply

Hence the expression obtained after solving the given expression is,
To learn more about the BODMAS rule, refer to brainly.com/question/23827397.
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Answer:
I don't understand what you are trying to ask? Sorry
Given that a polynomial function P(x) has rational coefficients.
Two roots are already given which are i and 7+8i,
Now we have to find two additional roots of P(x)=0
Given roots i and 7+8i are complex roots and we know that complex roots always occur in conjugate pairs so that means conjugate of given roots will also be the roots.
conjugate of a+bi is given by a-bi
So using that logic, conjugate of i is i
also conjugate of 7+8i is 7-8i
Hence final answer for the remaining roots are (-i) and (7-8i).
Because if you did not you would not have a exact answer.