The original price is $30 because 40% off of 12 = 30
Answer:
400 cm² of stickers
Step-by-step explanation:
A wooden box has the shape of a rectangular prism.
To solve for the above question, we would be using the formula for the Surface Area of a rectangular prism to calculate how much stickers are required .
The formula for the surface area of a rectangular prism =
A=2(wl + hl + hw)
l = Length = 20cm
w = Width = 4cm
h = Height = 5m
Hence,
= 2 × (4 × 20 + 5 × 20 + 5 × 4)
=400 cm²
Therefore, 400cm² of stickers would be needed to cover the wooden box.
Answer:
Step-by-step explanation:
Since this is a 30-60-90 triangle, we need the Pythagorean triple for such a triangle. the side length across from the 30 degree angle is labeled as x, the side across from the 60 degree angle is x√3, and the hypotenuse is 2x. Since we know the side length of the side across from the 60 degree angle, we use that identity and solve for x:
and
and rationalizing the denominator,
This is the side length of the side across from the 30 degree angle. In order to find the hypotenuse, we have to multiply this value by 2 to get
12√3, the third choice down.
sin 40° = 0.6428
<u>Step-by-step explanation:</u>
The complementary ratio of sine is cos and vice-versa.
sin θ = cos (90 - θ)
cos θ = sin (90 - θ)
So cos 50° = sin (90 - 50)°
= sin 40°
sin 40° = 0.6428
This indicates that the complement of cos 50° is sin 40° which is equal to 0.6428.
Answer:
the domain is -5 to infinity
Explanation:
f
(
x
)
=
√
x
+
5
A square root is
≥
0
so
x
+
5
≥
0
Here is a graph of the function
x
≥
−
5
g
r
a
p
h
{
√
x
+
5
[
−
10
,
10
,
−
5
,
5
]
}