42 firefighters in total.
16 volunteered for the special rescue team.
n + 16 = 42
or it could be this way:
42 - 16 = n
Hi!
This is a fun one, as it delves into basic trigonometry.
We're going to use the Pythagorean theorem here, which says that for right triangles where "c" is the hypotenuse,
a² + b² = c²
We have to split this large triangle into two parts, both of which are right triangles. (This is why they drew a line in the middle to tell you that the larger triangle is composed of two right triangles.)
Let's do the one on the right first.
We know that the length of the hypotenuse is 10, and that the length of one of the legs is 6.5. If we plug this into our equation, we'll get the length of the other leg. I'm choosing "b" to be 6.5, but it really doesn't matter if you pick "a" or "b", so long as you reserve "c" for the hypotenuse (longest side).
a² + 6.5² = 10²
a² + 42.25 = 100
a² = 57.75
√a² = √57.75
a ≈ 7.6
Therefore, the length of DC is about 7.6.
Find the length of AD using the same method (7.5 is the hypotenuse "c", and 6.5 is one of the legs "a" or "b"). Then, once you have AD, add the lengths of AD and DC to get AC.
Have a great one!
Answer:
3 - B
4 - D
Step-by-step explanation:
Hey There!
they are asking for the slope in slope intercept form
y = mx + b
where m = slope and b = y intercept
The slope is change in y over change in x
as y goes up 4 x goes up 2
4/2=2 so the slope (or m ) is 2
The y intercept is at point (0,-4)
So the y intercept (or b) is -4
now we add everything together and get that the equation of the line is
y=2x-4
for 4
the best rule is D 2n+2
Why? because the rate of change is 2
and the y intercept is at (0,2) so the best rule would be 2n+2
Ggggggggggggggggggggggggggg