Answer:
Step-by-step explanation:
We know that the sum of all the angles of a triangle add up to 180 degrees.
So, let's combine like terms:
7x + 3x + x = 11x
5 + 10 = 15
So, 11x + 15 = 180
We can rearrange the equation to look like this:
180 - 15 = 11x
180 - 15 = 165
So, 11x = 165
Then, divide:
165 / 11 = 15
So, x = 15.
Now we can find the measure of all the angles!
3x = 3 x 15 3 x 15 = 45.
7x + 5 = (7 x 15) + 5 7 x 15 = 105 105 + 5 = 110
x + 10 = 15 + 10 15 + 10 = 25
So, the angles are:
45 degrees
110 degrees
And 25 degrees
Answer:
B
Step-by-step explanation:
Given
7 -
= 7 + (- ) ← equivalent expression
= -
= or 7
Answer:
area will be four times the first area
Step-by-step explanation:
the diameter of the first sphere=d
therefore radius=d/2
=r
the diameter of the second sphere becomes 2d
therefore the radius of second sphere=2r
area of a sphere=4×pi×r^2
the ratio of the two spheres=(4pi(2r)^2)/(4pir^2)
=(4pi4r^2)/4pir^2
cancelling 4pir^2, you get 4:1
therefore the area of the second sphere is 4 times the first one
Answer:
16
Step-by-step explanation:
(3x - 1) + 2
(3(5) - 1) + 2
(15 - 1) + 2
14 + 2
16
The answer is A. m = undefined, C'D' = 13.2 units. When you dilate both C and D with the scale factor 2.2 with the origin as the center of dilation, their coordinates respectively become the following:C' (22, 13.2) and D (22,26.4)
The difference between 26.4 and 13.2 is 13.2. The slope is undefined since it is s vertical line.
Hope i helped