Ask question

Ask question

All categories

2 years ago

15

The triangle on the right is a scaled copy of the triangle on the left. Identify the scale factor. Express your answer as a whol

e number or fraction in simplest form.

1 answer:

Maru [420]2 years ago

6 0

Step-by-step explanation:

let x=8 for a small triangle

y=10 for a big triangle

You might be interested in

A manufactured lot of buggy whips has 20 items, of which 5 are defective. A random sample of 5 items is chosen to be inspected.

Finger [1]

Answer:

$P(X=1)$

And using the probability mass function we got:

$P(X=1) = (5C1) (0.25)^1 (1-0.25)^{5-1}= 0.396$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

For this cae that one buggy whip would be defective is $p = \frac{5}{20}=0.25$

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=5, p=0.25)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(X=1)$

And using the probability mass function we got:

$P(X=1) = (5C1) (0.25)^1 (1-0.25)^{5-1}= 0.396$

3 0

3 years ago

The total cost of Anja’s trip to the dentist was $628.35. She paid a flat fee of $89.95 which included the checkup and cleaning

Anna11 [10]

4x + 89.95 = 628.35 <== ur equation
4x = 628.35 - 89.95
4x = 538.40
x = 538.40 / 4
x = 134.60 <== the cost for each cavity filling

8 0

3 years ago

Read 2 more answers

What's the Area for each shape?

Vitek1552 [10]

Answer:

$(6 \times 5) + (2 \times 3) \\ 30 + 6 \\ = 36cm^{2}$

3 0

3 years ago

Evan makes cards numbered 1-18 and places them in a bag. What is the probability that he will pull out an even number, replace t

lubasha [3.4K]

Answer:

1-8

Step-by-step explanation:

6 0

3 years ago

What is the measure of i substract 45 from 135 i got 90 ans so is it right or wrong

RoseWind [281]

Yes it is correct .
45 plus 90 =135
which means that 135 - 45=90

6 0

3 years ago

Read 2 more answers