Answer:

Step-by-step explanation:

3y - 1 < 3
Isolate the y. Treat the less than or equal like an equal sign.
Do the opposite of PEMDAS. First, add 1 to both sides
3y - 1 (+1) < 3 (+1)
3y < 4
Next, divide 3 from both sides
3y/3 < 4/3
y < 4/3
y < 4/3 is your answer
hope this helps
- 4x^2y * 3xy^3
multiply the numbers : 4*3 = 12
-12x^2xy^3y
apply exponent rule : x^2x = x^2+1 = x^3
-12x^3y^3y
apply exponent rule again : y^3y = y^1+3 = y^4
answer : -12x^3y^4
Reorder the terms: 6.25 + -5y + y^2 = -14 + 6.25
Combine like terms: -14 + 6.25 = -7.75 6.25 + -5y + y2 = -7.75
Factor a perfect square on the left side: (y + -2.5)(y + -2.5) = -7.75
Can't calculate square root of the right side (negative). The solution to this equation could not be determined.
Answer:
<h2><u><em>
c = 23°</em></u></h2><h2><u><em>
b = 157°</em></u></h2>
<u><em>watch the picture</em></u>
<u><em></em></u>
Step-by-step explanation:
sum of all angles = 360°
c = 23° (opposite vertical angles so congruent)
b = (360° - 23 - 23) : 2 (opposite vertical angles so congruent)
b = 314 : 2
b = 157
----------------------
check
23 + 23 + 157 + 157 = 360°
the answer is good