3 years ago

What is 45 + 97 + 140

Mathematics

1 answer:

sweet [91]3 years ago

6 0

Answer:

Use a Calculator

Step-by-step explanation:

You have on on you phone

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(5f − 3) (–2) <br><br> help me plz lolz

Marat540 [252]

Answer:

Step-by-step explanation:

(5f-3)(-2)

-10f + 6 = 0

f= 6 + 10

f = 16

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2 years ago

10.5% of the population is 65 or older. Find the probability that the following number of persons selected at random from 25 peo

julia-pushkina [17]

Given:

The sample size n=25

Probability of population is 65 or older is 10.5%.

This date follows the binomial distribution,

$\begin{gathered} n=25,p=0.105 \\ X\rightarrow B(n=25,p=0.105) \end{gathered}$

To find the probability that at most 2 are 65 or older,

$\begin{gathered} P(X=x)=^nC_x(p)^x(1-p)^{n-x} \\ P(0\leq X\leq2)=P(X=0)+P(X=1)+P(X=2) \\ =^{25}C_0(0.105)^0(1-0.105)^{25-0}+^{25}C_1(0.105)^1(1-0.105)^{25-1}+^{25}C_2(0.105)^2(1-0.105)^{25-2} \\ =0.0625+0.1832+0.2579 \\ =0.5036 \\ \approx0.504 \end{gathered}$

Answer: Probability is 0.504 .

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1 year ago

Juan purchased 6 soccer jerseys for $105.<br> How much would 12 soccer jerseys cost?

ehidna [41]

For twelve jerseys it would be $210

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3 years ago

Which of the following is the solution set of -2|x| < -8

liraira [26]

-2|x|<-8

(-2|x|)/-2<-8/-2

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x>4 or x>-4

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2 years ago

18 • 1 and 18 = ?<br> help

Lady_Fox [76]

Answer: 18 = 36.

Step-by-step explanation: (18x1) + 18 = 36

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3 years ago