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3 years ago

325.6 rounded to the nearest whole number

Mathematics

2 answers:

ss7ja [257]3 years ago

8 0

Answer:

326

Step-by-step explanation:

when the number after the point is 5 or higher the number is rounded up.

vladimir2022 [97]3 years ago

8 0

Answer:

326.

...

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Some parts of California are particularly earthquake- prone. Suppose that in one metropolitan area, 25% of all homeowners are in

aleksandrvk [35]

Answer:

a. Binomial random variable (n=4, p=0.25)

b. Attached.

c. X=1

Step-by-step explanation:

This can be modeled as a binomial random variable, with parameters n=4 (size of the sample) and p=0.25 (proportion of homeowners that are insured against earthquake damage).

a. The probability that X=k homeowners, from the sample of 4, have eartquake insurance is:

$P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}\\\\\\P(x=k) = \dbinom{4}{k} 0.25^{0}\cdot0.75^{4}$

The sample space for X is {0,1,2,3,4}

The associated probabilties are:

$P(x=0) = \dbinom{4}{0} p^{0}(1-p)^{4}=1*1*0.3164=0.3164\\\\\\P(x=1) = \dbinom{4}{1} p^{1}(1-p)^{3}=4*0.25*0.4219=0.4219\\\\\\P(x=2) = \dbinom{4}{2} p^{2}(1-p)^{2}=6*0.0625*0.5625=0.2109\\\\\\P(x=3) = \dbinom{4}{3} p^{3}(1-p)^{1}=4*0.0156*0.75=0.0469\\\\\\P(x=4) = \dbinom{4}{4} p^{4}(1-p)^{0}=1*0.0039*1=0.0039\\\\\\$

b. The histogram is attached.

c. The most likely value for X is the expected value for X (E(X)).

Is calculated as:

$E(X)=np=4\cdot0.25=1$

6 0

3 years ago

Find the amount paid for the loan- <br> $4800 at 9.9% for 4 years

horsena [70]

Answer:

6700.80

Step-by-step explanation:

4800*.099= 475.20

475.20*4=1900.80

1900.80+4800=6700.80

8 0

3 years ago

Help please please show work

Nana76 [90]

Answer: $1267.18yd^2$

Step-by-step explanation:

$Formula: \pi r(r+\sqrt{h^2+r^2} )$

We need;

$\pi = 3.14\\r=?\\h=18yd$

We don't have the radius, but we do have the diameter. A diameter is twice the radius. Therefore, we can divide the diameter by 2 in order to obtain the radius.

$\frac{d}{2}= \frac{24}{2}=12yd$

Now plug this info into the formula.

$(3.14)(12yd)[(12yd)+\sqrt{(18yd)^2+(12yd)^2} ]$

Let's solve the square root first.

$(3.14)(12yd)[(12yd)+\sqrt{324yd^2+144yd^2} ]$

$(3.14)(12yd)[(12yd)+\sqrt{468yd^2} ]$

$(3.14)(12yd)[(12yd)+\sqrt{468yd^2} ]\\(3.14)(12yd)(12yd+21.63yd)$

Now solve the sum

$(3.14)(12yd)(33.63yd)\\$

Multiply

$1267.18yd^2$

5 0

4 years ago

Need help step by step

lukranit [14]

My work is in the photo. I'm only still typing because it requires me to have atleast 20 characters

4 0

3 years ago

SOMEONE HELP ME ASAP I will give BRAINLIEST

DedPeter [7]

$6.\\-6(a-7)=(-6)(a)+(-6)(-7)=-6a+42\\\\distributive\ property:\ a(b\pm c)=ab\pm ac$

$7.\\The \formula of\ slope:\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

$We\ have:\\\\(3;\ 4);\ (-6;\ 10)\\\\m=\dfrac{10-4}{-6-3}=\dfrac{6}{-9}=-\dfrac{2}{3}$

$Answer:\ m=-\dfrac{2}{3}$

8 0

3 years ago

325.6 rounded to the nearest whole number​

325.6 rounded to the nearest whole number