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4 years ago

National Mobile - 300 texts for $9.99

1 answer:

3 0

For the national mobile, you have 300 texts for 9.99 dollars whereas for airtime, you have 500 texts for 17.99 dollars.

9.99 dollars/300 texts = 0.0333 dollars per text
17.99 dollars/500 texts = 0.036 dollars per text

Choose the cost which has the lowest rate. If you really like to travel to other places and you need to budget, you will choose the national mobile rate. It is cheaper and 300 texts is a lot. However, if you want to travel including using your mobile texts during air transportation, you need to buy the 17.99 dollars. It’s a bit expensive but the number of texts is a lot. Divide the cost by the number of texts. For costing purposes, its smarter to choose the national mobile rate. <span> </span>

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The temperature on the moon can vary from 243°F to -261°F. By how many degrees can the temperature vary on the moon? Need the an

Leto [7]

243 degrees to zero is 243, from zero to -261 is 261 degrees, now add them : 504 degrees.

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4 years ago

PLEASE HURRY Write the equation as a single logarithm 3log(x-2)+2log(x+2)

zubka84 [21]

Answer:

$3\,log (x-2)+2\,log(x+2)$ can be written as the single logarithm:

$log((x-2)^3\,(x+2)^2)$

Step-by-step explanation:

Start by using in both terms of the expression the property of logarithm of a power that states:

$log(a^b)=b\,*\,log(a)$

so we recognize that the factor that multiplies each logarithmic expression, can be understood as the power of the argument of the function logarithm:

$3\,log(x-2)=log((x-2)^3)\\and\\2\,log(x+2)=log((x+2)^2)$

Then we use the property of logarithm of a product which states that:

$log(a*b)=log(a)+log(b)$

So now we recognize the expression:

$log((x-2)^3)\,+\,log((x+2)^2)$

as the logarithm of the product:

$log((x-2)^3\,(x+2)^2)$

which is finally a single logarithm as requested.

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3 years ago

Which equation represents a proportional situation?

liq [111]

Answer:

y=3x

Step-by-step explanation:

A proportional situation is a situation the crosses through the origin or (0,0). This means its starting value for y-intercept value is 0. It has the form y=mx for this reason. The solution is y=3x.

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4 years ago

Malcolm is downloading a file that is 50.4 Mb. his internet connection has a download speed of 1.2 mb per second. Let t represen

VikaD [51]

The equation is 1.2t=50.2 And the solution is 42

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3 years ago

What are the numerical measures of the angles?

vredina [299]

ANSWER

The sum of m∠DEA and m∠AEB is 180°.

Reason: The sum of angles on a straight line is always 180°.

$(x + 25)+(9x + 10)=180 \degree$

Group like terms to get,

$x+9x=180-25-10$

Simplify, and get,

$10x = 145$

Divide both sides by 10 to get,

$x = 14.5$

We substitute this value to get the required angles.

$m \: ∠DEA=x+25$

$m \: ∠DEA = 14.5 + 25 = 39.5 \degree$

$m\:∠AEB=9x+ 10$

$m\:∠AEB = 9(14.5) + 10$

$m\: ∠AEB=130.5 + 10 = 140.5 \degree$

7 0

3 years ago

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