All categories

3 years ago

This is part b thx for the help on the others im tryna mark u ppl

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

1. False

2. True

3. False

4. True

Step-by-step explanation:

Negative numbers are used the opposite way fo positive so the bigger the number is behind the negative sign the smaller that number is in value terms

Phoenix [80]3 years ago

4 0

1.) FALSE
2.) TRUE
3.) FALSE
4.) TRUE
Goodluck<3
I also wanna know in the comments what grade level this is

You might be interested in

Plzzz help

Marrrta [24]

LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Step-by-step explanation:

LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

4 0

3 years ago

Explain the steps you would take to find the area of the following composite shape.

julsineya [31]

What composite shape? Where is the shape?

7 0

3 years ago

A blouse that cost $16.85 is on sale for 45% off. What is the amount of the discount?

spin [16.1K]

The amount of the discount is $7.59

8 0

3 years ago

Read 2 more answers

Find the value of x and y if 50=x+y

solong [7]

180-50=130
x-y=130
x+y=50
2x=180
x=90
90+y=50
y=50-90
y=-40

6 0

3 years ago

a test consists of 10 true false questions to pass a test a student must answer at least six questions correctly if a student gu

Delicious77 [7]

Answer:

$P(X \geq 6) = P(X=6) +P(X=7) +P(X=8) +P(X=9) +P(X=10)$

And using the probability mass function we got:

$P(X=6)=(10C6)(0.5)^6 (1-0.5)^{10-6}=0.205$

$P(X=7)=(10C7)(0.5)^7 (1-0.5)^{10-7}=0.117$

$P(X=8)=(10C8)(0.5)^8 (1-0.5)^{10-8}=0.0439$

$P(X=9)=(10C9)(0.5)^9 (1-0.5)^{10-9}=0.0098$

$P(X=10)=(10C10)(0.5)^{10} (1-0.5)^{10-10}=0.000977$

And adding the values we got:

$P(X\geq 6) = 0.377$

The best answer would be:

D. 0.377

Step-by-step explanation:

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

$X \sim Binom(n=10, p=0.5)$

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:

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

For this case in order to pass he needs to answer at leat 6 questions and we can rewrite this:

$P(X \geq 6) = P(X=6) +P(X=7) +P(X=8) +P(X=9) +P(X=10)$

And using the probability mass function we got:

$P(X=6)=(10C6)(0.5)^6 (1-0.5)^{10-6}=0.205$

$P(X=7)=(10C7)(0.5)^7 (1-0.5)^{10-7}=0.117$

$P(X=8)=(10C8)(0.5)^8 (1-0.5)^{10-8}=0.0439$

$P(X=9)=(10C9)(0.5)^9 (1-0.5)^{10-9}=0.0098$

$P(X=10)=(10C10)(0.5)^{10} (1-0.5)^{10-10}=0.000977$

And adding the values we got:

$P(X\geq 6) = 0.377$

The best answer would be:

D. 0.377

8 0

3 years ago