Answer:
77.5°
Step-by-step explanation:
Draw a picture.
tanθ = 346/77
θ = arctan(346/77) ≅ 77.5°
Answer:
15/2r - 40; Distributive Property
Step-by-step explanation:
You can use the Distributive Property to multiply the 5 across the expression in the parentheses.
5(3/2r - 8)
5 × 3/2r = 15/2r
5 × -8 = -40
Combine.
15/2r - 40
Hope this helps!
<h3>
Answer: x = 7</h3>
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Explanation:
We have n = 8 sides for this octagon.
This means the interior angles sum to 180(n-2) = 180(8-2) = 180*6 = 1080 degrees.
The tickmarks tell us that each side is the same length, so we have a regular octagon. This means that all 8 angles are the same measure. Let's say each angle is y degrees.
1 angle = y degrees
8 angles = 8y degrees
Solving 8y = 1080 leads to y = 1080/8 = 135
Each angle of this regular octagon is 135 degrees.
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Now set 16x+23 equal to 135 and solve for x
16x+23 = 135
16x+23-23 = 135-23
16x = 112
16x/16 = 112/16
x = 7
The media is 94.5
Because you first order the number and then you have to add 87 and 100 dividend by 2 =187 over 2= 94.5
Answer:
The surface area is 91
Step-by-step explanation:
3*4=12
12/2=6
6*2=12
7*5=30
4*7=28
3*7=21
12+30+28+21=91
The equations that are on the left are caculations triangle calcuations. The equations on the right are the ones that equal each of the 2d shapes in the prism and if u add them all up you get your surface area.