Answer:
y= x/2-5
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
12-y=2x-5
+5 +5 ( add 5 to both sides)
17-y=2x
-17 -17 (Subtract 17 to get y by itself)
-y=2x-17
divide by -1 because y cant be negative
y=-2x+17
m=-2 and y-intercept= 17
I hope thats right :)
Answer:
Radius = 8.575 cm
Step-by-step explanation:
Formula for volume of a pyramid is;
V_p = ½Ah
Where A is area of base and h is height
Also, formula for volume of cone is given as;
V_c = ⅓πr²h
Now, we are told that V_p = V_c and that h is the same for both shapes.
Thus ;
½Ah = ⅓πr²h
h will cancel out to give;
½A = ⅓πr²
Cross multiply to give;
3A/2π = r²
Base area of pyramid is given as 154 cm². Thus;
(3 × 154)/2π = r²
r = √((3 × 154)/2π
r = 8.575 cm
The answer would be D....
Assume that x² + kx + 18 if factorable.
The factors of 18 are
(1 x 18); (2 x 9); (3 x 6).
If we use (1, 18) as factors, then
(x - 1)(x - 18) = x² - 19x + 18 => k= -19
or
(x + 1)(x + 18) = x² + 19x + 18 => k = 19
If we use (2,9) as factors, then
(x - 2)(x - 9) = x² - 11x + 18 => k = - 11
or
(x + 2)(x + 9) = x² + 11x + 18 => k = 11
If we use (3, 6) as factors, then
(x - 3)(x - 6) = x² - 9x + 18 => k = - 9
or
(x + 3)(x + 6) = x² + 9x + 18 => x = 9
Answer:
The possible values of k are -9,+9, -11, +11, -19, +19.
