X2 - 2x + 9x - 18
X2 + 7x - 18
Answer:
D.
Step-by-step explanation:
There are 60 seconds in 1 minute, times 2 for 2 minutes, that makes 120 seconds. 120 multiplied by 20 is equal to 2400. Brainliest?
Answer:
5 more men
Step-by-step explanation:
10 men do a job in 6 hours.
To do the job in 2 hours, 1/3 of the time, you need 3 times as many men.
30 men do a job in 2 hours.
To do the job in twice the time, 4 hours, you need half the men.
15 men do a job in 4 hours.
15 men - 10 men = 5 men
You need 5 more men.
I found this online I hope it helps a little if not, then sorry.
Answer: correct trigonometric ratios
SinB, tanA and cos A.
Step-by-step explanation:
The right triangle has two sides 5 and 12 , by Pythagoras it's hypotenuse is 13.
Tan B=5/12,
Sin A =12/13
