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2 years ago

A student ticket to the movie cost $4

Mathematics

2 answers:

Shalnov [3]2 years ago

8 0

Answer:(X x 4)=

Step-by-step explanation:

Basically u times how many tickets u need times how much it cost

Example( 1ticket X 4dollars) =4 dollars

larisa86 [58]2 years ago

3 0

Y=4x

I attached a picture of the graph

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Assume f(x) = ax^2+ bx + c Which one is true? f is a parabola that opens sideways to the right. f is a parabola that opens sidew

Viefleur [7K]

Step-by-step explanation:

f is a parabola that opens upward.

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3 years ago

Let f(x) = cxe−x2 if x ≥ 0 and f(x) = 0 if x < 0.

sergij07 [2.7K]

(a) If f(x) is to be a proper density function, then its integral over the given support must evaulate to 1:

$\displaystyle\int_{-\infty}^\infty f(x)\,\mathrm dx = \int_0^\infty cxe^{-x^2}\,\mathrm dx=1$

For the integral, substitute u = x ² and du = 2x dx. Then as x → 0, u → 0; as x → ∞, u → ∞:

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which reduces to

c / 2 (0 + 1) = 1 → c = 2

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2 years ago

Cary is 4 years older than Dan. In 7 years the sum of their ages will be 76

bekas [8.4K]

Ages of Dan and Cary are 29 and 33 respectively.

Step-by-step explanation:

Step 1:

Form equations out of the given details. Let the age of Dan be x, then age of Cary is x + 4.

In 7 years, sum of their ages = 76

⇒ (x + 7) + (x + 4 + 7) = 76

⇒ 2x + 18 = 76

⇒ 2x = 58

⇒ x = 29

Step 2:

Calculate age of Cary.

⇒ x + 4 = 33

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2 years ago

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1 year ago

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finlep [7]

Answer:

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Step-by-step explanation:

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3 years ago