Answer:
Step-by-step explanation:
use FOIL
F-firsts
O-outer
I-inner
L-lasts
(2m+3)(m-3)
1) answer is 8 because 8 + 7 = 15
2) answer is 8 because 8 + 18 = 26
3) answer is 25 because 25 - 6 = 19
4) answer is -1 because -1 - 3 = -4
The formula for area of a circle is: πr^2
r is half the diameter.
FE is the diameter: r = 20/2 = 10
Area of circle using FE = π10^2 = π * 100 = 314 square meters.
BE is a radius:
Area = π3.5^2 = π * 12.25 = 38.465 = 38.5 square cm ( rounded to nearest tenth).
AB is a radius:
Area = π11^2 = π * 121 = 379.94 = 380 square feet ( rounded off).
EF is a diameter
r = 12/2 = 6 meters
Area = π6^2 = π * 36 = 113.04 = 113 square meters ( rounded off).
Answer:
The slope of a line is a number that measures its "steepness", usually denoted by the letter m. It is the change in y for a unit change in x along the line.
Hope it helps.
Answer:
The correct answer to given question is option (a).
Step-by-step explanation:
Given function: f(x)= -2|x+1|
we need to put random values of x in given function to see that range of the given function f(x) is all real numbers.
when:
x=0; f(0)= -2|0+1|= -2|1|= -2
when x is positive i.e. x>0
x=1; f(1)= -2|1+1|= -2|2|= -4
x=2; f(2)= -2|2+2|= -2|4|= -8
when x is negative i.e. x<0
x= -1; f(-1)= -2|-1+1|= -2|0| =0
x=-2; f(-2)= -2|-2+1|= -2|-1|=2 (with the help of mod property |-1|=1)
hence, we saw that
when we take x>0; f(x)<0
when x<0; f(x)>0
we can conclude from above steps that the range of function f(x)= -2|x+1| is all real numbers.
