<img src="https://tex.z-dn.net/?f=%283%20%2B%20i%29%282%20%2B%20i%29" id="TexFormula1" title="(3 + i)(2 + i)" alt="(3 + i)(2 + i

egoroff_w [7]

3 years ago

)" align="absmiddle" class="latex-formula">

Mathematics

2 answers:

Papessa [141]3 years ago

8 0

Answer: you add 3+2 and that =5. There are 2 i. That is equal to 2i. Final answer: 5+2i

Step-by-step explanation:

Alinara [238K]3 years ago

5 0

$\bf (3+i)(2+i)\implies \begin{cases} 3(2+i)\\ 6+3i\\[-0.5em] \hrulefill\\ i(2+i)\\ 2i+i^2\\ 2i+(-1)\\ 2i-1 \end{cases}\implies 6+3i+2i-1\implies 5+5i$

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(25 pts) The volume of a rectangular prism can be computed using the formula v = lwh. what is the length of a prism that has a v

MatroZZZ [7]

16 x w x 8 = 1664
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8 0

3 years ago

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ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$