3 years ago

Perform the indicated operation. 15 - 12 3 -3 -27 27

Mathematics

1 answer:

Leviafan [203]3 years ago

7 0

Answer:

Step-by-step explanation:

you just have to subtract

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Quizizz help pls 10 pts each brainliest guaranteed WITH A PICTURE

jeyben [28]

Answer:

$9x^3-8x^2$

Step-by-step explanation:

$(7x^3-4x^2)+(2x^3-4x^2)$

Combine $7x^3$ and $2x^3$ to get $9x^3$ .

$9x^3-4x^2-4x^2$

Combine $4x^2$ and

9x^3-8x^2

Hope this helps.

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3 years ago

Find the area of the<br> circle below<br> Need it ASAP

pishuonlain [190]

Answer:

113.04 (i used 3.14 for pi)

Step-by-step explanation:

area of circle formula = pi r^2

radius = 6

6^2 = 36

3.14 x 36 = 113.04

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3 years ago

For i≥1 , let Xi∼G1/2 be distributed Geometrically with parameter 1/2 . Define Yn=1n−−√∑i=1n(Xi−2) Approximate P(−1≤Yn≤2) with l

murzikaleks [220]

Answer:

The answer is "0.68".

Step-by-step explanation:

Given value:

$X_i \sim \frac{G_1}{2}$

$E(X_i)=2 \\$

$Var (X_i)= \frac{1- \frac{1}{2}}{(\frac{1}{2})^2}\\$

$= \frac{ \frac{2-1}{2}}{\frac{1}{4}}\\\\= \frac{ \frac{1}{2}}{\frac{1}{4}}\\\\= \frac{1}{2} \times \frac{4}{1}\\\\= \frac{4}{2}\\\\=2$

Now we calculate the $\bar X \sim N(2, \sqrt{\frac{2}{n}})\\$

$\to \frac{\bar X - 2}{\sqrt{\frac{2}{n}}} \sim N(0, 1)\\$

$\to \sum^n_{i=1} \frac{X_i - 2}{n} \times\sqrt{\frac{n}{2}}} \sim N(0, 1)\\\\\to \sum^n_{i=1} \frac{X_i - 2}{\sqrt{2n}} \sim N(0, 1)\\$

$\to Z_n = \frac{1}{\sqrt{n}} \sum^n_{i=1} (X_i -2) \sim N(0, 2)\\$

$\to P(-1 \leq X_n \leq 2) = P(Z_n \leq Z) -P(Z_n \leq -1) \\\\$

$= 0.92 -0.24\\\\= 0.68$

6 0

3 years ago

16,500 rounded to nearest ten thousand

kari74 [83]

Hi,

16,500 rounded to the nearest ten thousand is 20,000.

Have a great day!

4 0

4 years ago

Read 2 more answers

Write the equation for g(x)

polet [3.4K]

I the answer is g(x)

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3 years ago