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3 years ago

Pls pls pls pls pls pls pls pls HELP

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

4 0

(5:20) The Answer

4 x 5 = 20
1 x 20 = 20

Margaret [11]3 years ago

4 0

5️⃣ I think cuz if the ratio is 4:1 then do 20 divided by 4 is 5

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ohaa [14]

You can name planes by one letter or using three points belonging to it that are <u>not</u> on the same line.

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Coplanar means 'on the same plane'.

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Collinear means 'on the same line'.

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1 year ago

you are rolling a 10-sided die with sides numbered 1-10. you keep rolling the die until you roll a prime number and then stop. l

evablogger [386]

The formula for E(x) would be SUM[ X(n)P(n)] from n = 1 to n = infinity until we get the prime number

In the given problem, a 10-sided die with 1-10 numbers is rolled until we get a prime number

Prime numbers between 1-10 = 2,3,5,7 (4 prime numbers)

Non - prime numbers = 1,4,6,8,9,10( 6 non-prime number)

Let X be the number of times the die is rolled

The probability of getting a prime =

$P(Prime) = \frac{4}{10}$

Now, the value of

E(X)=∑x.P(x) [ x-> {1, infinity}]

= P(1)X(1) +P(2)X(2)+P(3)X(3)+P(4)X(4)........+ P(n)X(n)

= 1. $\frac{4}{10}$ + 2. $\frac{6}{10}$ . $\frac{4}{10}$ + 3. $\frac{6}{10}$ . $\frac{6}{10}$ $\frac{4}{10}$ + 4. $\frac{6}{10}$ . $\frac{6}{10}$ . $\frac{6}{10}$ . $\frac{4}{10}$ .......

Hence, this is the value of E(x)

To learn more about Prime number, here

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2 years ago

HELP I SUCK AT MATH!!!!AND IM FAILING STILL!!!!!

alukav5142 [94]

Answer:

y=x+1

Step-by-step explanation:

The slop and y-int are 1, just like on the graph

8 0

3 years ago

Read 2 more answers

List five rational numbers between -4/5 and -2/3 . Please tell by step by step explaintion

attashe74 [19]

9514 1404 393

Answer:

-0.67, -0.68, -0.69, -0.70, -0.71

Step-by-step explanation:

There are an infinite number of ways to do this.

Perhaps the simplest is to do it in decimal.

-4/5 = -0.8

-2/3 = -0.666... (repeating 6)

Any negative decimal number between these values will do. For example, ...

-0.67, -0.68, -0.69, -0.70, -0.71

If you want to choose fractions that are evenly spaced between the given values, you can find their difference, then divide that difference into 6 parts (1 more than the number of numbers you need).

-2/3 -(-4/5) = 4/5 -2/3 = (12 -10)/(5·3) = 2/15 . . . . length of interval

1/6 of this difference is ...

(1/6)(2/15) = 2/90 = 1/45

The interval end point nearest 0 is ...

-2/3 = -30/45

so the 5 intermediate values will be that value with -1/45 repeatedly added:

-31/45, -32/45, -33/45 = -11/15, -34/45, -35/45 = -7/9

_____

<em>Additional comment</em>

The fractions we came up with could be referred to as "5 arithmetic means between -2/3 and -4/5." There is nothing in the problem statement suggesting the values need to be evenly spaced.

When doing this in decimal, you can obtain a new value simply by adding more digits to the decimal fraction:

-0.68, -0.685, -0.6853, -0.68531, -0.799

7 0

3 years ago

To become a member at a local nature preserve, applicants must pay an initiation fee of $100 plus their yearly membership dues ,

Natalija [7]

The points are (2,150), (4,200).

The slope of the line joining the points is,

$\begin{gathered} m=\frac{200-150}{4-2} \\ =25 \end{gathered}$

Thus, the slope represents the increse in cost per year of membership.

5 0

1 year ago