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fenix001 [56]
3 years ago
9

I’ll mark brainliest

Mathematics
1 answer:
enyata [817]3 years ago
6 0

Answer:

\text{A. }y=1.30x+1.50

Step-by-step explanation:

The two ringtones will cost her a total of 0.75\cdot 2=1.50 and is a fixed amount. The relationship between the cost and number of songs only is y=1.30x and therefore the answer is \boxed{\text{A. }y=1.30x+1.50}. You can also directly find the answer by finding the y-intercept (in this case 1.50), as no other answer choices include the term 1.50, so A must be the correct answer.

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The population of a town in 2007 is 113, 505
ELEN [110]

from 2007 to 2012 is only 5 years, so we can see this as a compound interest with a rate of 1.2% per annum for 5 years, so

~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$113505\\ r=rate\to 1.2\%\to \frac{1.2}{100}\dotfill &0.012\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per year, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases} \\\\\\ A=113505\left(1+\frac{0.012}{1}\right)^{1\cdot 5}\implies A=113505(1.012)^5\implies A\approx 120481

7 0
1 year ago
A cylinder shaped container has a radius of 30 cm and a height of 100 cm. A glass sphere with a redius of 12 cm is placed inside
Artemon [7]
Vcylinder-Vsphere=water


Vcylinder=hpir^2
Vsphere=(4/3)pir^3


given

cylinderradius=30 and h=100
Vcylinder=100pi30^2=100pi900=90000pi
let's leave it in terms of pi for more exactness

sphereradius=12
Vsphere=(4/3)pi12^3=2304pi


cylinder-sphere=90000pi-2304pi=87696pi
using pi=3.14
water=275365.44 cubic cm

last option is corrrect
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3 years ago
X^3=4 then the value of x= ​
Law Incorporation [45]
X≈1.5874
(Use the answer in the photo)

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If f(x)=3x+10x and g(x)=5x-3, find (f-g)(x)
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The slope intercept form of a line is y = mx + b

  • m = slope
  • b = y-intercept

Plug in the slope, 6, into m.

Rewrite the equation;

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  • We need to find b, your y-intercept, to finish this equation.

Plug in your point coordinate, (x, y) ⇒ (-12, -14) into the equation.

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Solve for b to find the y-intercept.

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Your new equation (your answer) is<em> </em>y = 6x + 58.

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