Answer:
ow do you find arc length without the radius?
To calculate arc length without radius, you need the central angle and the sector area:
Multiply the area by 2 and divide the result by the central angle in radians.
Find the square root of this division.
Multiply this root by the central angle again to get the arc length.
The units will be the square root of the sector area angle.
Check your result with Omni Calculator.
Or the central angle and the chord length:
Divide the central angle in radians by 2 and perform the sin function on it.
Divide the chord length by double the result of step 1. This gives you the radius.
Multiply the radius by the central angle to get the arc length.
Check your result with Omni Calculator
Step-by-step explanation:
Answer:
3cm
Step-by-step explanation:
cb is the same length bisector ac, so the answer is <u>3 cm</u>
Answer:
The area is 19.63.
Step-by-step explanation:
y = mx + b
y = 2x + 1
y - y₁ = m(x - x₁)
y - 4 = 2(x - 5)
y - 4 = 2(x) - 2(5)
y - 4 = 2x - 10
+ 4 + 4
y = 2x - 6
Answer:
One possible equation is , which is equivalent to .
Step-by-step explanation:
The factor theorem states that if (where is a constant) is a root of a function, would be a factor of that function.
The question states that and are -intercepts of this function. In other words, and would both set the value of this quadratic function to . Thus, and would be two roots of this function.
By the factor theorem, and would be two factors of this function.
Because the function in this question is quadratic, and would be the only two factors of this function. In other words, for some constant ():
.
Simplify to obtain:
.
Expand this expression to obtain:
.
(Quadratic functions are polynomials of degree two. If this function has any factor other than and , expanding the expression would give a polynomial of degree at least three- not quadratic.)
Every non-zero value of corresponds to a distinct quadratic function with -intercepts and . For example, with :
, or equivalently,
.