Answer:
45
Step-by-step explanation: 15x3
Answer:
y = 3x - 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
3x - y + 12 = 0 ( subtract 3x + 12 from both sides )
- y = - 3x - 12 ( multiply through by - 1 )
y = 3x + 12 ← in slope- intercept form
with slope m = 3
Parallel lines have equal slopes , thus
y = 3x + c ← is the partial equation
To find c substitute (2, 5) into the partial equation
5 = 6 + c ⇒ c = 5 - 6 = - 1
y = 3x - 1 ← equation of parallel line
Answer:
5/9
Step-by-step explanation:
Let the total number of buttons is x.
- Round buttons = 80% of x = 0.8x
- Square buttons = 0.2x
<u>Number of red buttons:</u>
- 0.1*0.8x + 0.5*0.2x =
- 0.08x + 0.1x =
- 0.18x
Number of red square buttons is 0.1x
<u>Required probability:</u>
- P = 0.1x/0.18x = 10/18 = 5/9
Answer:
12.7
Step-by-step explanation:
Use the Pythagorean Theorem.
The wall and ground are the legs. The ladder is the hypotenuse.
a² + b² = c²
8² + b² = 15²
b² = 225 - 64
b² = 161
b = √161 = 12.7
Answer: 12.7 ft
