Answer:
3, 4, 6, 7, 8, 9 are some examples
Answer:
Step-by-step explanation:
The x-coordinate vertex of a parabola in standard form is equal .
In , we have:
- equals 3
- equals -30
Therefore, the x-coordinate of the vertex is equal to .
To find the y-coordinate, simply substitute into the parabola's equation:
Thus, the vertex of the parabola is
Answer:
x = and y =
Step-by-step explanation:
Applying the trigonometric functions to the given triangle;
i. To determine the value of x;
Sin θ =
Sin 45 =
x = 16 * Sin 45
= 16 *
x =
ii. To determine the value of y;
Cos θ =
Cos 45 =
y = 16 * Cos 45
= 16 *
y =
Thus, x = and y =
Answer:
378 ≤ x ≤ 678
Step-by-step explanation:
If you're looking to book both a DJ and a light show we have to take into account the minimum that you'll pay up to the maximum cost "x". This can be done by adding the lowest cost for both meaning:
$219 + $159 = $378
And the most you'll pay:
$369 + $309 = $678
So you can say that the amount you'll pay is in between $378 and $678. Mathematically speaking you can also say that you'll pay more than or equal to $378 and less than or equal to $678. The previous statement can be written mathematically as a compound inequality as such:
X+y=28
xy=7
xy=7
divide both sides by x
y=7/x
sub 7/x for y in first equation
7/x+x=28
times both sides by x
7+x^2=28x
minus 28x from both sides
x^2-28x+7=0
use quadratic formula
if
ax^2+bx+c=0
x=
x=
x=
sub for y
y=7/x
y=
the reciprocals are
and
times first one by
and second by 7/7
evaluate the plus and minus yourself please, my head hurts