-0.4a = 7 - 3
-0.4a = 4
a = -10
Answer:
N(1) = -10
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
N(y) = -3y - 7
N(1) is y = 1
<u>Step 2: Evaluate</u>
- Substitute in <em>y</em> [Function]: N(1) = -3(1) - 7
- [Function] Multiply: N(1) = -3 - 7
- [Function] Subtract: N(1) = -10
To find her heart rate per minute, set up a proportion.
Let x represent the number of heart beats in a minute.
12/5=x/60
5x=720
5/5x=720/5
X=144
Thus, her heart was beating at a rate of 144 beats per minute.
Answer:
The number she needs to multiply with is 4 and the volume of the sphere is 1436.03in³
Step-by-step explanation:
Volume of a sphere = 4/3×πr³
Radius = 7in
π = 3.14
Volume of the sphere = 4/3 × 3.14 × 7³
Volume = 4/3 × 1077.02
Volume = 1436.026in³
The number that she needs to multiply with pi is 4 and the volume of the sphere is 1436.03in³
