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3 years ago

Mr. Anderson paid $19.18 for a CD cover. This amount included a tax of 2%. What was the cost of the CD cover before tax

Mathematics

1 answer:

uysha [10]3 years ago

7 0

The price is around 18.80

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HOW DO I SOLVE THIS PLEASE HELP

LenKa [72]

Answer:

Step-by-step explanation:

Euclide's theorem states that in a right triangle, the square built of the side lenght is equivalent of the rectangle with sides hypotenuse and projection of the same side lenght. In formula, given the measures on the triangle:

$60^2 = (36+x)(36) \rightarrow 3600 = 36(x+36) \rightarrow 100=x+36\\ x=64$

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2 years ago

27654 x 8976 solve that without a calculater uwu and i will give you the brainliest when i fugure out how tu do that UWU

vfiekz [6]

Answer:

mhmmm w/o calc here we go. thats a lot of typing tho so just trust me ok?

Step-by-step explanation:

2848222304???

my mom used to give me stuff like this as soon as i learned how to multiply #asianmomsbelike

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3 years ago

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What is the radius and diameter of the following circle?

Vinvika [58]

Answer:

Radius: 4.2 cm

Diameter: 8.4 cm

Step-by-step explanation:

Radius: The number that is half the circle.

Diameter: The radius times 2

5 0

3 years ago

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The melting point of substance X is -20 degrees Celsius and the boiling point is 90 degrees Celsius. How many Celsius degrees ar

Kazeer [188]

To find the distance between 2 numbers you must take the absolute value of the difference

|90-(-20)|
|110|
110

110 degrees celsius

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3 years ago

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Use the divergence theorem to find the outward flux of the vector field F(x,y,z)=2x2i+5y2j+3z2k across the boundary of the recta

aksik [14]

Answer:

The answer is "120".

Step-by-step explanation:

Given values:

$F(x,y,z)=2x^2i+5y^2j+3z^2k \\$

differentiate the above value:

$div F =2 \frac{x^2i}{\partial x}+5 \frac{y^2j}{\partial y}+3 \frac{z^2k }{\partial z} \\$

$= 4x+10y+6z$

$\ flu \ of \ x = \int \int div F dx$

$= \int\limits^1_0 \int\limits^3_0 \int\limits^1_0 {(4x+10y+6z)} \, dx \, dy \, dz \\\\ = \int\limits^1_0 \int\limits^3_0 {(4xz+10yz+6z^2)}^{1}_{0} \, dx \, dy \\\\ = \int\limits^1_0 \int\limits^3_0 {(4x+10y+6)} \, dx \, dy \\\\ = \int\limits^1_0 {(4xy+10y^2+6y)}^3_{0} \, dx \\\\ = \int\limits^1_0 {(12x+90+18)}\, dx \\\\= {(12x^2+90x+18x)}^{1}_{0} \\\\= {(12+90+18)} \\\\=30+90\\\\= 120$

6 0

3 years ago