Find the solution set of each equality if the replacement set for each variable is {-10,-9,-,9,10}. 16-19? !

QUESTION 16

The given inequality is .

We first multiply through by the least common multiple, which is to get,

This simplifies to

We expand brackets to get,

We group like terms to get,

.

We now choose the values from the replacement set

{}.

The solution set is therefore

{}

QUESTION 17

We want to solve

We multiply through by 3 to get,

This simplifies to,

We now expand brackets to get,

We group like terms to get,

We now choose the values from the replacement set

{}.

The solution set is therefore

{}

QUESTION 18

We want to solve .

We group like terms to get,

.

We simplify to get,

.

We divide through by 0.4 to get,

.

This time the complete replacement is the solution set of the inequality because all the elements satisfies  .

The solution set is

 {}

QUESTION 19

We want to solve .

We group like terms to get,

This implies that,

We divide through by 7 to get,

We can rewrite this as .

We now choose the values from the replacement set {}. The solution set is therefore

{}

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: