Answer:
Subtraction
Step-by-step explanation:
Since 8 is being added to the x, in order to get rid of it on the left side to solve for x you need to subtract 8 on both sides.
9514 1404 393
Answer:
x = -1/2, x = 7
Step-by-step explanation:
Written in standard form, the equation is ...
2x² -13x -7 = 0
We observe that factors of (2)(-7) that have a sum of -13 are -14 and +1. Rewriting the middle term using these numbers, we have ...
2x² -14x +x -7 = 0
2x(x -7) +1(x -7) = 0 . . . . . factor pairs of terms
(2x +1)(x -7) = 0 . . . . . . . . factored form
The solutions are the values of x that make these factors zero.
2x +1 = 0 ⇒ x = -1/2
x -7 = 0 ⇒ x = 7
The solutions to the quadratic are x = -1/2 and x = 7.
Answer:
80
Step-by-step explanation:
The sum of the opposite inscribed angles is 180
x+100 = 180
X = 80
Answer:
30%
Step-by-step explanation:
- 500 - 350 = 150
- Set up a proportion:
- Cross multiply, then divide: 150 × 100 = 15000, 15000 ÷ 500 = 30
- Write the completed fraction:
- 30%
I hope this helps!
The congruence symbol is this: ≅.
It’s saying to write the statement that’s saying both shapes are congruent. For example ABC ≅ DEF but use the letters in the shapes they gave.