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sergiy2304 [10]
3 years ago
9

HELP ASAP PLEASE!! The table shows the numbers of ships that visited a port in the past 5 years. Identify a polynomial function

for the number of ships in thousands that visited the port in a given year.

Mathematics
3 answers:
shtirl [24]3 years ago
8 0

Answer:  the answer 2nd one

ASHA 777 [7]3 years ago
7 0
The Second one I believe
M2 years ago
0 0

The second one

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Rewrite using a single positive exponent.<br> 7^4 * 7^-9
dmitriy555 [2]
7^4 x 7^-9=<span>0.000059
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3 years ago
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X+8=6 you have to solve for x.
Firlakuza [10]

Answer:

x= -2

Step-by-step explanation:

8-2=6

also, 8-8=0, 6-8= -2

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I need help with some maths homework what is the answer 3(x-3)=0
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If xy=0
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8 0
3 years ago
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How many liters each of a 35% acid solution and a 80% acid solution must be used to produce 60 liters of a 65% acid solution? (R
serg [7]

Solving a system of equations we will see that we need to use <u>40 liters of the 80% acid solution</u>, and the other <u>20 liters are of the 35% acid solution</u>.

<h3>How many liters of each solution do we need to use?</h3>

First, we need to define the variables:

  • x = liters of the 35% acid used.
  • y = liters of the 80% acid used.

We know that we want to produce 60 liters of 65% acid, then we have the system of equations:

x + y = 60

x*0.35 + y*0.80 = 60*0.65

(in the second equation we wrote the percentages in decimal form).

To solve this we need to isolate one of the variables in one equation and then replace it in other one, isolating x we get:

x = 60 - y

Replacing that in the other equation:

(60 - y)*0.35 + y*0.80 = 60*0.65

y*(0.80 - 0.35) = 60*(0.65 - 0.35)

y*0.45 = 60*0.30

y = 60*0.30/0.45 = 40

So we need to use <u>40 liters of the 80% acid solution</u>, and the other <u>20 liters are of the 35% acid solution</u>.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

7 0
2 years ago
<img src="https://tex.z-dn.net/?f=e%20%3D%20mc%20%7B2%7D" id="TexFormula1" title="e = mc {2}" alt="e = mc {2}" align="absmiddle"
serg [7]

Answer:

The equation — E = mc2 — means "energy equals mass times the speed of light squared." It shows that energy (E) and mass (m) are interchangeable.

Hope this helped

6 0
3 years ago
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