The difference between properties of equality and properties of inequality that you need to take into account when you are solving equalities and inequalities is the effect that some operations have on the sign.
1) The multiplicative property of equality permits you to multiplicate both members (sides) on an equality times a factor and the equality will remain. But in an inequality, while the factor is positive the inequality will remain but when the factor is negative, the sign of the inequality will change.
2) The same is true about the division property:
3) When you use othe functions like absoulte value and square root you will also need to be attentive of the effect of the function on the sign of the equality,.
Answer:
432
Step-by-step explanation:
2250x4.8=10,800
5x5=25
10,800/25=432
2. 8<span>√17
I hope this helps you out 4sunmoonstar!</span>
Answer:
8 more teachers
Step-by-step explanation:
Since 15% of the committee are parents of students, 45% are teachers from the current high school, 25% are school and district administrators, the total percentage is
→ 15 + 45 + 25 = %85
The remaining percentage is 15, and it is equal to 6 students. Then, the total number of people in the committee is
→ 
= 
→ x = 40
Since %45 of the committee are teachers, the number of teachers is
→ 40(
) = 18
Since %25 of the committee are school and district administrators, the number of school and district administrators is
→ 40(
) = 10
That means, there are 18 - 10 = 8 more teachers
Answer:
Option A.) 1.30
Step-by-step explanation:
we know that
The secant of x is 1 divided by the cosine of x:
so
sec(40°)=1/cos(40°)
using a calculator
sec(40°)=1.30
