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4 years ago

HELP I WILL MARK BRAINILEST

Mathematics

1 answer:

Lilit [14]4 years ago

5 0

I know that b and d are correct because c is just silly and a is just incorrect :)

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Select the correct answer from each drop-down menu.

chubhunter [2.5K]

The answer is 5x+8 i hope I helped you

5 0

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

Please need help asap ❤️You have placed your money in a bank account with an interest rate of 5.8% compounding annually. After 5

luda_lava [24]

Formula for compound interest is stated as follows:

A = P(1+r)^n; where A = Amount in the bank after compounding, P = Principal amount deposited in the account, r = annual interest rate as a decimal, n = number of years to accumulate amount A in the account.

Using the values given;
9090 = P(1+0.058)^5
P = 9090/[(1+0.058)^5] = 9090/1.3256 = 6857.02

Therefore, the amount put in the account must be $6,857.02

6 0

4 years ago

Write as a fraction with a whole number divisor: 35.7 ÷ 0.07

AlladinOne [14]

Answer:

510

that the whole number

3 0

3 years ago

Is 6 cm less than greater than or equal to 600 mm

mariarad [96]

no because 6 cm is equal to 60 cm and 600 cm is equal to 1200 cm.

8 0

3 years ago