Answer:
option C is correct.
Step-by-step explanation:
The area of triangle with sides a, b and c can be found by using formula
We are given:
a= 20
b=30
c=40
<u>Finding s:</u>
Putting values in the formula and solving:
Now, <u>Finding the area</u>:
Putting values in the formula and solving:
So, option C 290.5 units^2 is correct.
Answer: The answer is 6300
Step-by-step explanation:
Hello!
The equation of a circle is
(x - h)^2 + (y - k)^2 = r^2
Put in the values we know
(x - h)^2 + (y - 7)^2 = 10^2
It went through point (3, -1)
(3 - h)^2 + (-1 - 7)^2 = 100
(3 - h)^2 + (-8)^2 = 100
(3 - h)^2 + 64 = 100
Subtract 64 from both sides
(3 - h)^2 = 36
Take the square root of both sides
3 - h = +6 or -6
Subtract 3 from both sides
-h = 3 or -9
Since h is negative we can multiply both sides by -1 to make it positive
3 = -3 or 9
The answer is B) 9, -3
Hope this helps!
X=9. x=-15. you also have to turn the 24 into a negative and solve the equation
6x + 4x + 10 = 180
10x = 170
x = 17
mCA = 4(17) + 10 = 68 + 10 = 78
Answer:
mCA = 78°
