9514 1404 393
Answer:
3.75 cm
Step-by-step explanation:
Corresponding sides are proportional.
CD/BC = BC/AB
CD = (BC)²/AB . . . . . multiply by BC
CD = (6 cm)²/(9.6 cm) = (36/9.6) cm
CD = 3.75 cm
Thirteen dollars and twenty two cents just add 15% to $11.50.
Answer:
a obtuse it's more than a 90 degree angle and scalene
Answer:

Step-by-step explanation:
The systems of equations are
Let us assume the rate of the current be c
Now actual speed against the current is (15 - c)
And, the actual speed with the current is (15 + c)
Here we applied the time formula i.e. distance by speed
Also the upstream time - downstream time = 4
Now the equations are

16 thru 23 look wrong and 16 is absolutely wrong. You use this:https://www.mathpapa.com/algebra-calculator.html to work out the answers and it shows the steps and explains it to you better than I could. Good luck