Answer:
C
Step-by-step explanation:
C. x=7, y=5
Answer:Answer: x = 2.55
Step-by-step explanation: We will start off with triangle CBD, since it has two sides with known values.
In triangle CBD, the hypotenuse is 6 units (it's facing the right angle).
Using the Pythagoras theorem, CB² = CD² + BD²
6² = CD² + 4.2²
36 = CD² + 17.64
Subtract 17.64 from both sides of the equation
18.36 = CD²
Add the square root sign to both sides of the equation
√18.36 = CD
CD = 4.28 (approximately 4.3)
We can now solve for x in triangle ACD.
The hypotenuse is 5 (because it's facing the right angle)
Using the Pythagoras theorem
AC² = CD² + AD²
5² = 4.3² + x²
25 = 18.49 + x²
Subtract 18.49 from both sides of the equation
6.51 = x²
Add the square root sign to both sides of the equation
√6.51 = x
2.55 = x
Therefore, x = 2.55
Answer:
$191.25
Step-by-step explanation:
To find the price after the discount you will need to turn the percentage into a decimal. Since 1 represent as a 100% we will subtract 15% percent from it. To do this we will divide 15 by 100 to get .15. Subtract .15 from 1. This will give you .85. With .85 you multiply it by the original price of the shoes ($225). This will give you 191.25.
The area for rectangle is (l x w) or (length times width) or (length x width)
*just in case you get confused
so the length is 10, and the width is 2.5 so you plug in.
10 x 2.5 = 25
your answer is 25 mm²
hope this helps
The answer should be (C):y=(-3/7)x+3 because:
if you use the slope formula: (Y2-Y1)/(X2-X1) it would look like this:
(0-3)/(7-0) and the slope of the line would be -3/7
then using the slope you just found, plug it into the y=mx+b equation along with one set of coordinates to find b (the y-intercept):
y=mx+b
0=(-3/7)(7)+b
b=3
SO, overall if you put the slope (m) and the y-intercept (b) that you found together, you get the line formula of y=(-3/7)+3
