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trasher [3.6K]
3 years ago
13

A submarine dives to a depth of 54.6 meters below the surface of the water in 4 minutes. What integer represents the constant ra

te the submarine travels per minute? I need work with the answer to. step by step
Mathematics
1 answer:
Katen [24]3 years ago
8 0
Just divide the depth he dove by the time it took him to dive.

54.6 / 4 = 13.65

So he traveled at a constant rate of 13.65 meters a minute.
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Find the length of the segment with endpoints of (3,2) and (-3,-6).
MakcuM [25]
The formula of the length of the segment AB:
A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}
We have:
A(3;\ 2)\to x_A=3;\ y_A=2\\\\B(-3;\ -6)\to x_B=-3;\ y_B=-6
Substitute:
|AB|=\sqrt{(-3-3)^2+(-6-2)^2}=\sqrt{(-6)^2+(-8)^2}\\\\=\sqrt{36+64}=\sqrt{100}=10
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5 0
4 years ago
What is the vertex form of y=-2x2+4x + 3?
sukhopar [10]

Answer:

y=-2(x-1)^2+5

Step-by-step explanation:

we have

y=-2x^2+4x+3

This is the equation of a vertical parabola open downward

The vertex represent a maximum

Convert the quadratic equation into vertex form

step 1

Factor -2

y=-2(x^2-2x)+3

step 2

Complete the square

y=-2(x^2-2x+1)+3+2

y=-2(x^2-2x+1)+5

step 3

Rewrite as perfect squares

y=-2(x-1)^2+5 ----> equation in vertex form

The vertex is the point (1,5)

3 0
3 years ago
A marching band was in a parade. the band members marched in 8 rows. there were 6 band members in each row. explain how the fact
natta225 [31]
If 5 x 6 = 30 you can figure out 8 x 6 by adding 6 three times to 30!

30 + 6 = 36

36 + 6 = 42

42 + 6 = 48 <-- the answer is 48!
6 0
3 years ago
HELP ASAP
joja [24]

Answer: The solutions are not viable because the amount of the sale cannot be negative.

Step-by-step explanation:

The solution A = -5 is not viable because A represents the amount of sale in dollars and so cannot be a negative number. The minimum amount that a person can make from sales is $0 so anything less than that is not viable.

For instance, if you are selling shoes for $4 each and make no sales in the day, your sales would be $0. It is not possible that your sales would be -$4.

6 0
3 years ago
the total is 30 coins and 3 dollars. there are twice as many nickles as dimes. how many nickles and dimes and there
beks73 [17]

Answer:

20 nickels and 10 dimes.

8 0
3 years ago
Read 2 more answers
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