Quadratic formula since this trinomial is not factorable.
Answer:
The tax was 5.13
Step-by-step explanation:
Take the amount and multiply by the tax rate
78.99 * 6.5 %
Change to a decimal
78.99 * .065
Round to the nearest cent
5.13
Answer:
Step-by-step explanation:
i don't take trig :/
Answer:
9cm
Step-by-step explanation:
- Since PQST is a rectangle, ∠QST=∠QSR=∠90º. So triangle QSR is a right triangle.
- By the Pythagorean Theorem and that SR=6 and QR=10, we can say that 6^2+b^2=10^2. So, 36+b^2=100. And b^2=64 and b=8. So QS=8.
- Now we know that QS=PT=8.
- By the Pythagorean Theorem and that PR=17 and PT=8, we can say a^2+8^2=17^2. So, a^2+64=289. And a^2=225 and a=15.
- We know that TR=15 and SR=6 and TR-SR=TS, so 15-6=9.
304 would be the correct answer
