Find the equations

Ernstfalld
2020-11-01
Answered

Find the equations

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Nathalie Redfern

Answered 2020-11-02
Author has **99** answers

c) A division fact of

Therefore

Since

d) A multiplication fact of

Therefore

Since

asked 2021-01-04

Write in words how to read each of the following out loud.

a. $\{x\in {R}^{\prime}\mid 0<x<1\}$

b. $\{x\in R\mid x\le 0{\textstyle \phantom{\rule{1em}{0ex}}}\text{or}{\textstyle \phantom{\rule{1em}{0ex}}}x\Rightarrow 1\}$

c. $\{n\in Z\mid n\text{}is\text{}a\text{}factor\text{}of\text{}6\}$

d. $\{n\in Z\cdot \mid n\text{}is\text{}a\text{}factor\text{}of\text{}6\}$

asked 2021-08-11

A ball is tossed upward from the ground. Its height in feet above ground after t seconds is given by the function $h\left(t\right)=-16{t}^{2}+24t$ . Find the maximum height of the ball and the number of seconds it took for the ball to reach the maximum height.

asked 2022-07-27

If the problem is $5\times 2+3-8=17$ , where would i place the parenthesis?

asked 2022-07-25

Determine: $\frac{|3-2x|}{{x}^{2}+5}\le 0$

asked 2022-05-22

I have a random variable $\xi $ with function distribution (f.d.) $G-$. Define the $p-$−dimensional random vector as

$X=({\psi}_{1}\xi ,...,{\psi}_{p}\xi )\sim F\phantom{\rule{thinmathspace}{0ex}}\phantom{\rule{thinmathspace}{0ex}}(F{\textstyle \text{is f.d.}})$

Given $a>0$, consider $A=[-a,a{]}^{p}$. I want to find an expression for:

${\int}_{A}dF$

involving $G$ and the ${\psi}^{\prime}s$

My attempt is first try to find the f.d. of $X$:

$\begin{array}{rl}F({x}_{1},...,{x}_{p})& =\mathbb{P}[{\psi}_{1}\xi \le {x}_{1},...,{\psi}_{p}\xi \le {x}_{p}]\\ & =\mathbb{P}[\xi \le \frac{{x}_{1}}{{\psi}_{1}},...,\xi \le \frac{{x}_{p}}{{\psi}_{p}}]\\ & =\mathbb{P}[{\xi}_{n}\le min{\textstyle \{}\frac{{x}_{1}}{{\psi}_{1}},...,\frac{{x}_{p}}{{\psi}_{p}}{\textstyle \}}]\\ & =G{\textstyle (}min{\textstyle \{}\frac{{x}_{1}}{{\psi}_{1}},...,\frac{{x}_{p}}{{\psi}_{p}}{\textstyle \}}{\textstyle )}\end{array}$

Even with these expressions in hand, I'm having serious trouble finding an expression for ${\int}_{A}dF$.

$X=({\psi}_{1}\xi ,...,{\psi}_{p}\xi )\sim F\phantom{\rule{thinmathspace}{0ex}}\phantom{\rule{thinmathspace}{0ex}}(F{\textstyle \text{is f.d.}})$

Given $a>0$, consider $A=[-a,a{]}^{p}$. I want to find an expression for:

${\int}_{A}dF$

involving $G$ and the ${\psi}^{\prime}s$

My attempt is first try to find the f.d. of $X$:

$\begin{array}{rl}F({x}_{1},...,{x}_{p})& =\mathbb{P}[{\psi}_{1}\xi \le {x}_{1},...,{\psi}_{p}\xi \le {x}_{p}]\\ & =\mathbb{P}[\xi \le \frac{{x}_{1}}{{\psi}_{1}},...,\xi \le \frac{{x}_{p}}{{\psi}_{p}}]\\ & =\mathbb{P}[{\xi}_{n}\le min{\textstyle \{}\frac{{x}_{1}}{{\psi}_{1}},...,\frac{{x}_{p}}{{\psi}_{p}}{\textstyle \}}]\\ & =G{\textstyle (}min{\textstyle \{}\frac{{x}_{1}}{{\psi}_{1}},...,\frac{{x}_{p}}{{\psi}_{p}}{\textstyle \}}{\textstyle )}\end{array}$

Even with these expressions in hand, I'm having serious trouble finding an expression for ${\int}_{A}dF$.

asked 2021-12-13

Turn 0.75 into a fraction.

asked 2022-02-03

How do you simplify $3a(2a+7)+5(5a+2)$ ?