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vivado [14]
2 years ago
8

See file attached below:

Mathematics
1 answer:
pochemuha2 years ago
7 0

Answer:

Goodluck my dude.

Step-by-step explanation:

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Un número real no puede pertenecer a los racionales y a los irracionales a la vez?​
Galina-37 [17]

Step-by-step explanation:

eso es cierto y correcto por supuesto, es tan obvio

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3 years ago
Please help ASAP I’m confused<br><br> I WILL GIVE BRAINLIEST
neonofarm [45]

Answer: x=4.7434

Step-by-step explanation:

Use the pythagorean theorem a^{2} +b^{2} =c^{2}

plug in and solve

x^{2} +3x^{2} =(3\sqrt{10}) ^{2}

4x^{2} =90

x^{2} =22.5

x=4.7424

if you need to solve for the sides

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3 years ago
Which equation represents a hyperbola shown in the graph?
Paladinen [302]

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It's C

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6 0
3 years ago
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Show that 6^3-1 is divisible by 5 using our identities
Doss [256]

Answer:

Step-by-step explanation:

a³-b³=(a-b)(a²+ab+b²)

6³-1=6³-1³=(6-1)(6²+6*1+1²)=5×43

so 6³-1 is divisible by 5.

8 0
2 years ago
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Katy recently hired a contractor to do some necessary work. On the final bill, Katy was charged a total of $488. $260 was listed
svetlana [45]

Answer:

(A) $260 + $57x = $488

(B) 4 hours

Step-by-step explanation:

(A) We need to find out how many hours of labor he needed to complete the job. That's what the x will represent.

We know that he charged Katy for the parts and for the labor, with an hourly rate of $57.

We need to sum the amount of money he charged for the parts with the hourly rate multiplied by the number of hours he worked.

Let's notice that we multiply the number of hours just to the hourly rate, the price of the parts doesn't depend on how many hours he worked.

That is $260 + $57*x

We know that the total was $488, so we just need to equal the expression before to the total.

$260 + $57x = $488

That's the expression we were looking for.

(B) Let's solve the equation. We need to leave the x alone on one side of the equation.

First, let's subtract $260 on both sides:

$260 + $57x - $260 = $488 - $260

$57x = $228

Now we divide by $57 on both sides:

$57x/$57 = $228/$57

x = 4

He needed 4 hours to do the job.

4 0
3 years ago
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