Assume that 1/1, or 1, equals your whole savings.
In order to find the savings left from the two items, you need to subtract 1/2 and 1/4 from 1.
1 - 1/4 - 1/2
= 3/4 - 1/2
= 3/4 - 2/4
= 1/4
Therefore, you have 1/4 of your savings left
For chemistry you would need to get an 84.
For Spanish you would need to get an 82.
Best of luck
Answer:
a. What is the measure of ∠CAT? Answer: 70°
b. What is the measure of ∠BAR? Answer: 50°
c. What is the measure of ∠RAT? Answer: 110°
d. What is the measure of ∠CAB? Answer: 130°
e. What is the measure of ∠BAT? Answer: 60°
Step-by-step explanation:
I just looked at the degrees of the protractor.
Hope this helps!
If not, I am sorry.
There are two ways to solve this question.
1) To solve this question, we need to substitute a = 6 and b = -3 into the given expression and then evaluate:
(-a)(b)(-a + b)
= (-6)(-3)(-6 + (-3))
= 18(-9)
= -162
2) An alternative method is to simplify (-a)(b)(-a + b) into an expression without brackets and then substitute a = 6 and b = -3:
1. (-a)(b)(-a + b)
= (-ab)(-a + b)
= -ab*(-a) + (-ab)*b
= a^(2)b+ (-ab^(2))
= a^(2)b - ab^(2)
2. a^(2)b - ab^(2)
= 6^(2)*(-3) - 6*(-3)^2
= 36*(-3) - 6*9
= -108 - 54
= -162
The key to either method is to be careful with placement of brackets, especially where there are negative values involved.