Answer:
12 Newtons
Step-by-step explanation:
We can use Newton’s Second Law to find the mass first.
F = ma
9 = 3m
mass = 3
Substitute this into the second equation.
F = ma
F = 3(4)
F = 12N
Hope this helps! :D
Answer: When scaling something, only the lengths of the sides change, the angles would remain the same. The answer is stay the same.
Step-by-step explanation:
3 - 2a > 7
We need to solve for a
First, let's subtract 3 on both sides to have the variables on a side and the numbers on another side:
3 - 2a > 7
3 - 2a - 3 > 7 - 3
- 2a > 4
Let's divide both sides by -2 to have a on side and its value on the other side:
-2a > 4
(-2a)/(-2) > (4/-2)
a < -2 (In a case of an inequality, we change the sign when we divide by a negative number to its opposite).
So 3 - 2a > 7 when a < -2 (answer c)
Hope this helps! :D
Answer:
x = 76
Step-by-step explanation:
A line has an angle measurement of 180 degrees.
Knowing that, let's first find the angle measurement of DIJ:
180 - 107 = 73
Angle DIJ has an angle measurement of 73
To find the angle measurement of DJI, we have to apply knowledge of angles in a triangle. When you add all the angles in a triangle, they ALWAYS equal to 180 degrees.
Using that knowledge, we can add 73 and 31 and subtract that value from 180:
73 + 31 = 104
180 - 104 = 76
The angle measurement of Angle DJI is 76.
Because vertical angles are ALWAYS going to have the same angle measurement, Angle AJF is going to have an angle measurement of 76 as well.
So x = 76
Hope that helps (●'◡'●)
Answer:
The lateral area of the pyramid is 
Step-by-step explanation:
we know that
The lateral area of the pyramid is equal to the area of its three triangular lateral faces
so
![LA=3[\frac{1}{2}(b)(k)]](https://tex.z-dn.net/?f=LA%3D3%5B%5Cfrac%7B1%7D%7B2%7D%28b%29%28k%29%5D)
where
------> the slant height
substitute the values
![LA=3[\frac{1}{2}(10)(8)]=120\ cm^{2}](https://tex.z-dn.net/?f=LA%3D3%5B%5Cfrac%7B1%7D%7B2%7D%2810%29%288%29%5D%3D120%5C%20cm%5E%7B2%7D)
