Answer:
the zeros are f(x= 3) and f(x= -4)
Step-by-step explanation:
x²+x-12
x²+4x-3x-12
x(x+4) -3(x+4)
(x-3) (x+4)
x=3 and x= -4
f(x)= x²+x-12
using x=3;
f(3)= 3²+3-12 = 9+3-12= 12-12=0
using x= -4;
f(-4)= (-4)² + (-4) - 12= 16-4-12= 12-12= 0
the zeros are f(x= 3) and f(x= -4)
Step-by-step explanation:
the 1th 3th and 5th are not functions the rest are
Answer: The wingspan is 36 m.
Using a proportion to solve this, we write the scale factor as a ratio first: 19/38, since 19 is the size of the model's length and 38 is the real length. For the second ratio, we have 18 for the size of the model wingspan and x for the real wingspan:
19/38 = 18/x
Cross multiply:
19*x = 38*18
19x = 684
Answer:
128.57 degrees
Step-by-step explanation:
To find the measure of an interior angle of a regular polygon with sides, we can use the formula:
To find the measure of an interior angle of a polygon with 7 sides, all we have to do is plug in 7 into the formula:
7 minus 2 equals 5, so the answer is
÷
180 times 5 is equal to 900, and 900 divided by 7 is approximately 128.57
Answer:
65$
Step-by-step explanation:
390 divided by 6 = 65