Answer:
She deposits $350 into the account at the beginning of the year.
Step-by-step explanation:
Let us assume that Keegan deposits $P into her savings account at the beginning of the year.
The account earns 3% simple interest each year and she has $360.50 in her account at the end of the year.
If Keegan did not make any additional deposits or withdrawals during the year.
So, we can write that ![P[1+\frac{3}{100} ]= 360.50](https://tex.z-dn.net/?f=P%5B1%2B%5Cfrac%7B3%7D%7B100%7D%20%5D%3D%20360.50)
⇒ P = $350 (Answer)
Answer:
Absolute error = 13-12.7=0.3
13 =100%
12.7=x
x=(12.7)(100)/13
x=97.7
the percentage error is 97.7%
Answer:
X=80
Step-by-step explanation:
I suppose the graph will be like this:
Since isosceles trapezoid, red lines are parallel.
X+x+20= 180
2x+20=180
2x=160
X=80
Answer:
1.05 miles per hour
Step-by-step explanation:
m = y2 - y1/ x2 - x1 (It doesn't matter which you choose to be y2 and y1, just make it consistent)
m = 4.2 - 2.1/ 4 - 2
m = 2.1 / 2
m = 1.05
X + 5y = 14
5y = -x + 14
y = -1/5x + 14/5.....the slope here is -1/5. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So our perpendicular slope will be 5. See how I flipped -1/5 making it -5/1...and then changed the sign, making it 5.
y = mx + b
slope(m) = 5
(-5,-2)....x = -5 and y = -2
now we sub and find b, the y int
-2 = 5(-5) + b
-2 = -25 + b
-2 + 25 = b
23 = b
so ur perpendicular equation is : y = 5x + 23 <==
