Answer:
All of the following are examples of propositions: "The U. S. holds presidential elections every four years." "Bob bought a new car." "Suzanne has the measles."
Answer:
A) 3
Step-by-step explanation:
Slope defines the rate of a change in a linear equation. As the function is written in slope-intercept form, mx + b, in which m is the slope and b is the y-intercept, 3 is your slope.
Answer:
f(9)=-22-9(9)+20=-83
Step-by-step explanation:
f(9) means x = 9, Just substitute 9 into the function.
-9(9) = -81
-22-81+20 = -83
Answer:
Step-by-step explanation:
Use the formule V=4/3 *Pi*R^3
where R =10
so V=4/3*Pi*10^3
v= 4000Pi/3 =4188.7902
Answer:
see explanation
Step-by-step explanation:
Using the sum/ difference → product formula
cos x - cos y = - 2sin(
)sin (
)
sin x - sin y = 2cos (
)sin (
)
Given
(cosA - cosB)² + (sinA - sinB )²
= [ - 2sin(
)sin(
) ]² + [ 2cos(
)sin(
) ]²
= 4sin² (
)sin² (
) + 4cos² (
)sin² (
)
= 4sin² (
)[ sin² (
) + cos² (
) ← sin²x + cos²x = 1
= 4sin² (
) × 1
= 4sin² (
) = right side ⇒ proven