Answer:
A) 40
B) length = 4.275 km; not quite true. See below for explanation.
Step-by-step explanation:
A) Your calculator can tell you the ratio ...
(national pennies)/(local pennies) = (8×10⁶)/(2×10⁵)
= (8/2)×10⁶⁻⁵ = 4×10¹ = 40
The national drive collected 40 times as many pennies as the Valley Stream Central goal.
__
B) Multiplying the number of pennies by the diameter of each will tell the length of the line of pennies. That length can be compared to the 5 km distance to determine if the reporter's statement is true. (It is <em>not</em> true.)
length of string = (length of penny) × (number of pennies)
= (19×10⁻⁶ km) × (2.25×10⁵) = 42.75×10⁻¹ km = 4.275 km
The length of the pennies laid side-to-side is less than 5.0 km. The reporter's statement is not true.
_____
All scientific and graphing calculators and many 4-function calculators will let you enter numbers in scientific notation.
We can use an approximation of pi. pi = 3.14.
sqrt(16)/4 = 4/4 = 1
2pi = 2 * 3.14 = 6.28
We need to find the number that is not between 1 and 6.28.
A pi = 3.14; 3.14 is between 1 and 6.28, so this is not the answer.
B sqrt(9) = 3; 3 is between 1 and 6.28, so this is not the answer.
C pi/9 = 3.14/9 = 0.349; 0.349 is not between 1 and 6.28, so this is the answer.
D pi^2/9 = (3.14 * 3.14)/9 = 9.86/9 = 1.095; 1.095 is between 1 and 6.28, so this is not the answer.
Answer: C pi/9
Answer:
D. g(x) = -x² - 3
Step-by-step explanation:
The g(x) is in the opposite side of f(x). So it is negative.
-x²
The y-intercept is (0, -3).
g(x) = -x² - 3
Answer:
-3
Step-by-step explanation:
My knowledge ;D
Answer: 2x^2+ 9x +16+ 24x- 17/ x^2- 2x +1
Step-by-step explanation: