Answer:
130
Step-by-step explanation:
31+19=50
Angle in a triangle add up to 180
180-50=130
Answer:
40π feet
Step-by-step explanation:
Using the diameter of a circle you can find the circumference much easily than the radius. To find circumference with diameter you would do π×d or in this case π*40 which would give you the answer 40π.
Answer:
61.74
Step-by-step explanation:
so u start off by solving for ghe semicircles.
the formula I wrote for it was:
1/2(3.14)(3)(3)=14.13
then i multiplied it by 2 because the other semicircle so you get:
28.26
then u find the area of the rectangle and subtract 28.26.
15x6=90
90-28.26=61.74
Answer:
420 m^2
Step-by-step explanation:
Ancho: x
Largo: 2x + 2
2x + 2(2x+2) = 88
2x + 4x + 4 = 88
6x = 88 - 4
x = 84/6
x = 14
Ancho: 14
Largo : 30
Area: 14 * 30 = 420 metros cuadrados
Answer:
D.
Step-by-step explanation:
In order to eliminate, the numbers must eliminate. If the second equation is multiplied by 3, then the 3 and the -3 can be eliminated. Since it is multiple choice, we can plug in x = 12 and y = 10 to see if they are correct. 12 + 30 = 42 and 24 - 10 = 14, so D is correct.
