3 years ago

Plz guys I need help

Mathematics

1 answer:

k0ka [10]3 years ago

6 0

the answer will be 16x

1 gallon 16x as constant variable

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Can someone help me understand this.

3241004551 [841]

Answer:

easy-peasy

Step-by-step explanation:

Perimeter:

P=2(a+b)

P=2(50+70)

P=2(120

P=240

Area:

A=50*70

A=3,500

I really hope it helped:)

8 0

3 years ago

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FxUCK this honor code im cheating

malfutka [58]

oi-

well gl ig

;-;

o-O

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3 years ago

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The lifetime, in years, of some electronic component is a continuous random variable with the density f(x) =   k x4 for x ≥ 1

yuradex [85]

I suppose the density is supposed to be

$f(x)=\begin{cases}\frac k{x^4}&\text{for }x\ge1\\0&\text{otherwise}\end{cases}$

(since $kx^4$ diverges as $x\to\infty$ , and 0 is conveniently left out of the domain)

For this to be a proper density function, it must be positive (it is) and its integral over the support $[1,\infty)$ must evaluate to 1. We have

$\displaystyle\int_{-\infty}^\infty f(x)\,\mathrm dx=\int_1^\infty\frac k{x^4}\,\mathrm dx=-\frac k{3x^3}\bigg|_1^\infty=\frac k3=1$

which means $k=3$ .

The distribution function is obtained by integrating the density:

$F(x)=\displaystyle\int_{-\infty}^xf(t)\,\mathrm dt=\begin{cases}0&\text{for }x$

The probability that the component exceeds 2 years in its lifetime is

$P(X>2)=1-P(X\le 2)=1-F(2)=1-\left(1-\dfrac18\right)=\dfrac18$

3 0

3 years ago

(1 point) Solve the equation 10 – 2+x= -2.<br> The only solution is I =

Svetach [21]

Answer:

dddddddddddddddddddd

Step-by-step explanation:

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3 years ago

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In ΔPQR, the measure of ∠R=90°, RQ = 55, PR = 48, and QP = 73. What ratio represents the sine of ∠Q?

navik [9.2K]

Answer:

48/73

Step-by-step explanation:

6 1

3 years ago