A submarine is 45 feet below sea level. The submarine then rises 12 feet. After a while,the submarine dives another 22 feet. At what depth is the submarine at?
Answers
Answer:
55
Step-by-step explanation:
45-12+22
Answer:
55 feet
Step-by-step explanation:
you do 45-12=33+22
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–2x + 6y = 14
What is the solution to the system?
(2, 1)
(2, –3)
(2, –1)
(2, 3)
Answers
6x – 3y = 3
–2x + 6y = 14 /*3
_________
6x – 3y = 3
–6x + 18y = 42
_________
-3y + 18y = 3 + 42
15y = 45
y = 45/15
y = 3
6x – 3y = 3
6x - 3 * 3 = 3
6x = 3 + 9
6x = 12
x = 12/6
x = 2
(x, y) = (2, 3)
The correct result would be (2, 3).
Answer:
The answer is D
(2,3)
Step-by-step explanation:
Which of the following expressions represents the nth term of the sequence?
A 4n +1
B) 4n + 5
5n+1
D) 5n + 5
Answers
If the first term of an arithmetic sequence is 5 and the third term of the sequence is 13 then the nth term is A) 4n +1.
What are arithmetic and geometric sequence?
An arithmetic sequence is a set of numbers in which every no. next to the previous number has the same common difference(d).
aₙ - aₙ₋₁ = aₙ₋₁ - aₙ ₋₂.
In a geometric sequence numbers are written in the same constant ratio(r).
It means every next number is a multiple of a common constant and the previous number.
aₙ/aₙ₋₁ = aₙ-₁/aₙ₋₂.
Given, The first term of an arithmetic sequence is 5.
The third term of the sequence is 13.
As we can conclude that for 2 terms the common difference is increased by 8.
∴ Common difference (d) = 8/2 = 4.
Now, we know the nth term of an arithmetic sequence is,
aₙ = a₁ + (n - 1).d.
aₙ = 5 + (n - 1)×4.
aₙ = 5 + 4n - 4.
aₙ = 4n + 1.
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Answer:A 4n+1
Step-by-step explanation: found the answer key
its b I just chose randomly
He should have used the median and IQR because of the outlier.
He should have compared the median and mean.
He should have compared the MAD and IQR.
Answers
Answer: The agent's error would be B) He should have used the median IQR because of the outlier.
Answers
Rearrange the second equation to give y=2-2x, substitute into the first equation to give you a value for x and then using that you can work out y for the exact coordinates of intersection :)
Also they are both straight line graphs so they will either have one or no solutions
Hope this helped :)
Answers
Answers
Hello!
The answer is:
Why?
First, we need to find the money that Jarred needs including the money that he has already saved.
So, Jarred needs $800.
If he earns $160 a week, we can find the minimum weeks he has to work in order to earn $800 following the next steps:
So, if he has to work at least 5 weeks to earn the total amount of money, it can be expressed by the following inequality:
Have a nice day!
Final answer:
Jarred has to save $800 more to buy the go-cart, that is $1,200 minus the $400 he already saved. If he earns $160 per week, the inequality representing the minimal number of weeks he has to work is: 160w >= 800. If we solve this inequality for w, we find that w must be equal or greater than 5 weeks.
Explanation:
This question is about solving inequalities. The cost of the go-cart is $1,200 and Jarred has already saved $400. That leaves him with $800 he still needs to save.
His job pays him $160 a week. Therefore, we can identify the inequality as 160w + 400 ≥ 1,200.
To determine the minimum number of weeks Jarred needs to work, we solve for w
Steps to solve:
- Subtract 400 from both sides of the equation to isolate the term with w: 160w ≥ 800.
- Divide both sides by 160 to solve for w: w ≥ 5.
- As you cannot work a fraction of a week, the minimum number of weeks he needs to work is 5.
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