Answer:
x = 14
Missing angles: 33° and 57°
Step-by-step explanation:
(2x + 5) + (3x + 15) = 90° (complementary angles)
Add like terms
5x + 20 = 90
5x = 90 - 20
5x = 70
x = 70/5
x = 14
✔️Plug in the value of x to find each missing angle:
2x + 5 = 2(14) + 5 = 33°
3x + 15 = 3(14) + 15 = 57°
Answer:
B. trapezoid
Step-by-step explanation:
The other three have two pairs of parallel sides
Answer:
Step-by-step explanation:
me
Answer:
Step-by-step explanation:
.01 (subtract confidence level from 100)
Answer: 3x⁴ + x + 7
<u>Step-by-step explanation:</u>
(5x⁴ - 3x² + 7x - 10) - (2x⁴ - 3x³ + 6x - 17)
Distribute the negative to the second expression, which means "change all of the signs" and then add the two expressions.
( 5x⁴ - 3x² + 7x - 10)
+ <u>(-2x⁴ + 3x³ - 6x + 17)</u>
= 3x⁴ + 0x³ + 1x + 7
= 3x⁴ + x + 7
Note: If you need to show work for distributing the negative sign, multiply each term of the second expression by -1.
