Answer:
30 degrees
Step-by-step explanation:
Keep this in mind, ALL triangles must equal 180 degrees.
This is an acute triangle, hence one of the angles is 90 degrees. To find the other two angles, we must solve for x. Since we know the sum of all angles in this triangle must equal 180 degrees, we know for setting up our equation, all the angles should equal 180.
Now solve for x by isolating x
Our x is -7, now that we know that the numerical value of x is -7, replace x with -7 for angle A.
-7 + 37 = 30
<A is 30 degrees.
<u>Check your work</u>
Plug in -7 where you see x.
Turns out this was a 30-60-90 triangle. ✅
Answer:
Solution below.
Step-by-step explanation:
This question may seem complicated, but it is really on the concept of substitution.
So given:
f(x) = 3x
g(x) = x - 4
h(x) =
We are asked to find (h•(f-g))(2).
Note: This is not a composite function.
First, lets find (h•(f-g))(x) first.
(f-g)(x) = f(x) - g(x) = 3x - (x - 4) = 2x + 4
(h•(f-g))(x) =
Now we can find (h•(f-g))(2) by substituting x = 2 into the function.
(h•(f-g))(2) =
Answer:
3
Step-by-step explanation:
i think
9*2=18
36-18=18
18/2=9
the width is 9cm