Answer:
a = 4
b = -2
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Equality Properties
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
a + 4b = -4
a + 10b = -16
<u>Step 2: Rewrite Systems</u>
a + 4b = -4
- Subtract 4b on both sides: a = -4 - 4b
<u>Step 3: Redefine Systems</u>
a = -4 - 4b
a + 10b = -16
<u>Step 4: Solve for </u><em><u>b</u></em>
<em>Substitution</em>
- Substitute in <em>a</em>: -4 - 4b + 10b = -16
- Combine like terms: -4 + 6b = -16
- Isolate <em>b</em> term: 6b = -12
- Isolate <em>b</em>: b = -2
<u>Step 5: Solve for </u><em><u>a</u></em>
- Define equation: a + 4b = -4
- Substitute in <em>b</em>: a + 4(-2) = -4
- Multiply: a - 8 = -4
- Isolate <em>a</em>: a = 4
Answer:
rainy
Step-by-step explanation:
because of the rain cloud is problye going to rain.
Answer:
I'm pretty sure the answer is B
Answer: 132.50
Step-by-step explanation:
120/106 = 1.132
150/1.132 = 132.508
Answer:
Option B. 7/11
Step-by-step explanation:
The following data were obtained from the question:
Sin x = 7/11
Cos(90 – x) =..?
The value of Cos(90 – x) can simply be obtained as follow:
Recall:
Sin x = Cos(90 – x)
Sin x = 7/11
7/11 = Cos(90 – x)
Therefore, the value of Cos(90 – x) is simply 7/11.