Answer:
a = -15.5, b = -32.5
Step-by-step explanation:
Let's say the first number is a, and the second is b.
a + b = - 48
a - b = 17
If you add both equations, you get 2a = -31, because the
+b and -b cancel each other.
So you would get a + a = 2a, then -48 + 17 = -31
2a = -31
--- ---
2 2
Divide both sides by 2 to get a by itself.
a = -15.5
Then let's go to the next equation (a - b = 17)
Plug in a..
-15.5 - b = 17
+ 15.5 + 15.5
------
-b = 32.5
--- ------
-1 -1
b = -32.5
Hope this helps.
Answer:
F. None of the above
Step-by-step explanation:
A cone is produced by rotating the shape about line m.
The height of the cone will be 0.5 because it's perpendicular to the base.
Since the height is 0.5, the answer is not A or B.
The circular base is formed by the line split into two "1"s. Each "1" is the radius, together, the diameter of the base.
Since r = 1, the answer is not C.
Since d = 2r = 2(1) = 2, the answer is not D.
∴ The answer is none of the above, F.
Answer:
12.
Step-by-step explanation:
Answer:

Step-by-step explanation:

Distribute 4(x+2).

Subtract 2x and 8 from both sides.


Divide both sides of the equation by 2.


Answer:
Step-by-step explanation:
In case someone is not sure what consecutive prime numbers are, here is an example: 17, 19, 23, 29, 31, and 37 are six consecutive prime numbers because they are ALL the prime numbers from 17 to 37 and they are listed in order.