Answer:
1-5n
Step-by-step explanation:
you would do 1-5n because its in brackets, the order of opperation is
Brakcets
Order (Power ofs)
Division and Mulitplication
then do addition and subtraction
when doing division and multiplication and subtraction and addition go left to right to find what part goes 1st.
Hope this helped!
Answer:
68 texts per day
Step-by-step explanation:
The description of the variables in the equation tells you that you want to find t (texts sent per day) for the given value of 'a' (age in years).
__
Substitute the number (15) for the variable (a) and do the arithmetic:
t = -1.63a +92.14
t = -1.63(15) +92.14 = -24.45 +92.14
t = 67.69
Keiko's trend line estimates a 15-year-old would send about 68 texts per day.
- 32 - (-5) =
- 32 + 5 =
- 27
64 - (-6) =
64 + 6 =
70
Answer:
See below ↓↓
Step-by-step explanation:
<u>Finding the radius</u>
- C = 2πr
- 25 = 2 x 3.14 x r
- r = 25 / 6.28
- r = 3.98 cm ≅ 4 cm
<u />
<u>Surface Area</u>
- 4πr²
- 4 x 3.14 x 4 x 4
- 3.14 x 64
- 200.96
- <u>201 cm²</u>
<u></u>
<u>Volume</u>
- 4/3πr³ = 4πr² x r/3
- 201 x 4/3
- 67 x 4
- <u>268 cm³</u>
Answer:
22.36
Step-by-step explanation:
22.36 X 22.36 =(Approx) 500 feet2
