Answer:
y=7x+4
Step-by-step explanation:
slope- intercept form is y=mx+c
m=7
so y=7x+c
substitute (0,4) into y=7x+c
so 4=(7x0)+c
c=4
so y=7x+4
Answer:
∠B
Step-by-step explanation:
To convert from radians to degrees, multiply the radians by 180°/π
⇒ ∠B = 4 × 180°/π
⇒ ∠B = 229.2° (nearest tenth)
As 229.2° > 210° then ∠B is bigger than ∠A
Answer:
(or 6)
Step-by-step explanation:
<u>Set f(x)=0:</u>
or
<u>Now check both solutions:</u>
Therefore, 
because there is a hole at 
. The denominator, in addition, can never be 0, so the function is undefined for .
Since , then is the only zero of the function.
Answer:
r≈4.51yd
Step-by-step explanation:
The surface area of a sphere is given by the formula SA = 4r2, where r is the radius of the sphere. If the surface area of a sphere is 256 square yards, then the radius of the sphere is 4.51yd.
Formula: A=4πr^2
Answer:
C
Step-by-step explanation:
