Answer:
x =34.56°
Step-by-step explanation:
adjacent/ hypotenuse =cosx
cosx = 14/17
x =
(14/17)
x =34.56°
Each side is 52 cm. because equilateral triangles have equal lengths on each side. <span />
We know that
[volume of a prism]=length*<span>width*height
</span><span>length=1 1/4 cm-------> (1*4+1)/4-------> 5/4 cm
</span><span>width = 4 cm
height=</span><span>3 1/4 cm---------> (3*4+1)/4------> 13/4 cm
</span>[volume of a prism]=(5/4)*4*13/4-----------> 65/4--------> 16.25 cm³
the answer is
the volume is 16.25 cm³ (16 1/4 cm³)
The interior angel of 7 will be angel 4
∠7 + ∠4 = 180°
Answer:
B
Step-by-step explanation:
First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial
. We can now use the quadratic formula to solve.
Remember that the quadratic formula is

Substitute the numbers from the equation into the formula.

Simplify:


Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with
.
Hope this helps!