Answer:
^algebra^
#1). a - b=4
a=4 + b .....(equation 1)
#2) a + b=12
(4 + b) + b= 12
4 + b + b=12
4 + 2b=12
2b= 12 - 4
2b =8
b= 8:2
b=4
subtituted b in equation 1
a= 4 + b
a= 4 + 4
a=8
so, the number is 8 and 4
Answer:
hmmm i wish i could help you!
Step-by-step explanation:
hope u get the answer
Answer: 4
<u>Step-by-step explanation:</u>
A =
r²θ
50 =
(5)²θ
100 = (5)²θ
100 = (25)θ
4 = θ
********************************************************************************
Answer: 1570.80 cm²
<u>Step-by-step explanation:</u>
A =
r²θ
A =
(100)²
A = 500π
A = 1570.80
********************************************************************************
Answer: 19.63 m²
<u>Step-by-step explanation:</u>
A =
r²θ
=
(5)²
= 
= 19.63
********************************************************************************
Answer: 15°
<u>Step-by-step explanation:</u>

180 = 12x
15 = x
********************************************************************************
Answer: A
<u>Step-by-step explanation:</u>
Quadrant I: 0° - 90°
Quadrant II: 90° - 180°
Quadrant III: 180° - 270°
Quadrant IV: 270° - 360°
255° is in Quadrant III
Answer:
300
Step-by-step explanation:
(75*4)/1
Answer:
A
Step-by-step explanation:
Because the x-coordinate is in seconds. Which eliminates answer B
Also, the Y-coordinate is measured in 40 meters per unit, this eliminates C and D.