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3 years ago

14. Lara bought gift cards to give as gifts. She bought some $20 movie

Mathematics

2 answers:

lubasha [3.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

The x intercept is represented by the coordinate (x,0) on x axis.

So, to find the x intercept ,we need to equate y=0 in the equation 20x+70y=420

=> 20x+ 70*0=420

=> x=420/20 =21.

x intercept is (21,0).

vovikov84 [41]3 years ago

3 0

Answer:

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

20*X+70*Y-420=0

Pull out like factors :

20x + 70y - 420 = 10 • (2x + 7y - 42)

Equation of a straight line:

y=mx+b

2x+7y-42 = 0

y-intercept = 42/7 = 6

x-intercept = 42/2 = 21

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Given: The price of a particular stock is represented by the linear equation

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3 years ago

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Integrate e^x(sin(x) cos(x))

Karo-lina-s [1.5K]

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Looking for $I_2$ :

$\text{If}~u=\cos(2x)\to du=-2\sin(2x)dx~\text{and}~dv=e^xdx\to v=e^x:\\\\
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3 years ago

Which expression is equal to 3⋅(10+2)+20⋅2

ANEK [815]

Answer:

Step-by-step explanation:

When you solve the equation you will do parentheses first (10+2) which equals 12 then you carry everything down. Next you will multiply 3 x 12 to get 36 then you carry the 20 and 2 down. Next you will multiply 20 by 2 to get 40 and then add 36 + 40 to get 76.

3(10+2) +20 x 2

3(12) +20 x 2

36 + 20 x 2

36 + 40

76 : answer

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