Answer:
that is really so difficult ? what do you not understand here ? please let me know, if you need any further explanations.
you know what the perimeter is ? if it's the circumference, the way around the object. in other words, the distance you have to walk, when going along all sidelines of the object.
so the perimeter is the sum of of all side lengths.
56 = x - 1 + 3x + 3x + 1 = 7x
x = 8
that gives us the side lengths :
x - 1 = 7 cm
3x = 21 cm
3x + 1 = 22 cm
the formula for the area of a triangle
A = baseline × height / 2
the advantage of a right-angled triangle in this regard is that the sides enclosing the 90 degree angle are already "acting" as baseline and the height (standing on the baseline with a 90 degree angle).
so, we can simply say here, the 3x side is the baseline, and the x-1 side is also the height.
therefore,
A = 21×7/2 = 147/2 = 73.5 cm²
Answer:
The $3 per video game with $50 membership is more economically if you rent at least 11 games or more per year
Step-by-step explanation:
there are 365 days in a year
3 x 365 = 1095
1095 + 50 = $1145 (Cost per year)
8 x 365 = $2920 (Free Membership) cost per year
If you only rent 10 video games per year, they equals the same amount
$3 x 10 (games) = $30 Then $30 + $50 (Member Fee) = $80
$8 x 10 (games) = $80 for 10 games rental
If they rent 11 games or more per year, then the $3 rental is more economical.
$3 x 11 = $33; $33 + 50 = $83
$8 x 11 = $88
Answer:
3
Step-by-step explanation:
Calculate the distance using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (2, 2) and (x₂, y₂ ) = (5, 5)
d =
= = = 3 ← exact value
3x + (2x - 25) = 180
5x - 25 = 180
5x - 25 + 25 = 180 + 25
5x = 205
5x / 5 = 205 / 5
X = 41
Hope that is right, sorry if it’s not
Supplementary means it equals 180 degrees