Answer: 1-250(+80-18)=-188
Step-by-step explanation: the submarine starts at sea level, goes down 250 feet (-250). rises 80 feet (-170). descends 18 feet (-188). i don't know if this is correct or not. i haven't learned descending yet so idk- i think it's right i'm not sure. i don't know if this is right i'm so sorry.
Answer:
I say its B
Step-by-step explanation:
Have good day
Answer:
Quotient = a²+ 4a- 2
Step-by-step explanation:
(8a3+31a2-20a-5)/(8a-1)
=
<u> a² +4a-2 ⇒ quotient</u>
(8a-1)√(8a3+31a2-20a-5)
8a²- a² ⇒ Multiplying (8a-1) by a²
<u> - + </u> ⇒ Changing signs
32a²- 20a- 5
32a²- 4a ⇒ Multiplying (8a-1) by 4a
<u> - + </u> ⇒Changing signs
-16a -5
- 16a +2 ⇒ Multiplying (8a-1) by -2
<u> + - ⇒</u> Changing signs
-7 ⇒ Remainder
We follow the steps of simple division to get the quotient which is a²+ 4a- 2
We multiply (8a-1) by factors such as a², +4a and -2 to get the same terms as given in the dividend.
Just do for example on number 38 you will do 6.8/1000= 0.0068 which is the answer
