Answer:
The value of x is 32.
Step-by-step explanation:
Because all of the sides are equal, we know all of the angles are equal. Since there is only 180 degrees in a triangle, we know each angle is equal to 60 degrees. Therefore, we can set angle Z equal to 60 degrees.
2x - 4 = 60
2x = 64
x = 32
Answer:
area= 78.5 cm²
circumference= 31.4 cm
Step-by-step explanation:

Given that the radius is 5cm, r= 5. Substitute r= 5 and π as 3.14 into the equation:
Area of circle
= 3.14(5²)
= 78.5 cm²

Circumference of circle
= 2(3.14)(5)
= 31.4 cm
For another question on area of circle, you might want to check out this question here: brainly.com/question/14068861
Answer:
5y = x + 11
Step-by-step explanation:
Given parameters:
Equation of the line ;
y = -5x + 1
Coordinates = (2, -1)
Find the equation of a line perpendicular;
Solution:
A line perpendicular to y = -5x + 1 will have slope that is a negative inverse of the given one.
Equation of a straight line is expressed as;
y = mx + c
y and x are the coordinates
m is the slope
c is the y-intercept
So, the slope of the new line perpendicular is
;
Now let us find the y-intercept of the new line;
x = -1 and y = 2
2 =
x (-1) + c
c = 2 +
=
The equation of the new line is;
y =
x +
or multiply through by 5;
5y = x + 11
9514 1404 393
Answer:
when it is a rhombus
Step-by-step explanation:
A kite is a figure in which the diagonals are perpendicular, and one of them is bisected by the other. It will be a parallelogram if both diagonals bisect each other. Such a figure (with mutually perpendicular bisectors as diagonals) is a rhombus.
A parallelogram that is a rhombus will also be a kite.
It is 1595. Put it on excel so you can better have an overview how it is done. You need 5 columns, column A-E. On column A, put 1 to 5 in rows 1 to 5. On column C, put the answers: 2, 7, 26, 101 and 400. On column D, put number 3 in all 5 rows. Back on column B, insert =sum(C1-A1) on row 1 and copy till row 5. On column E, insert =sum(B1+C1*D1) on row 1 and copy till row 5 and you will get 1595 at the end.