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3 years ago

Help pls itS BEEN 2 HOURS LUV U <3

Mathematics

1 answer:

nataly862011 [7]3 years ago

7 0

Step-by-step explanation:

Hey there!

The equation of a circle which passes through any point having centre (h,k) is;

$( {x - h)}^{2} + ( {y - k)}^{2} = {r}^{2}$

In first blank ( x-_ ) keep "-2". In second blank (y - _ ) keep "4" and in last blank ( _ ) keep "36".

Hope it helps..

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Construct a tangent to a circle through a point on the circle using the construction tool. Insert a screenshot of the constructi

otez555 [7]

Answer:

Below is an image of my work

Step-by-step explanation:

7 0

3 years ago

Jose paid $47.00 for 4 movie tickets. Each ticket cost the same amount. What was the cost of each movie ticket in dollars and ce

scoundrel [369]

Each ticket costed 11.75$

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3 years ago

Read 2 more answers

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

Which of the following statements about unit rates is NOT true?

atroni [7]

Answer:

A) A unit rate relates a quantity to 1 : TRUE

B) unit rates can be used to compare two rates : TRUE

C) any rate is equivalent to its unit rate

. FALSE

D) a unit rate always relates quantities with the same units. FALSE

Step-by-step explanation:

The ratio that which is used to compare quantities of different kinds is known as the rate of that quantity.

A unit rate is the ratio.

Number of units of the first type of quantity : Number of units of the second type of quantity.

Now,

A) a unit rate relates a quantity to 1.

TRUE, as a UNIT is equivalent to one.

Hence, unit rate unit rate relates a quantity to 1.

B) unit rates can be used to compare two rates

TRUE, unit rate compares two rates.

C) any rate is equivalent to its unit rate

FALSE, only the rate of one single unit is equivalent to its Unit Rate.

D) a unit rate always relates quantities with the same units

FALSE, rate compares the two terms which are in different units.

8 0

2 years ago

I need major help. I have a lot of missing work and really need help with algebra 1. (solving linear equations)

igor_vitrenko [27]

A= 5 + 2 = 7
You get this by doing the inverse operation so minus 2 by 2 and 7 then you get your answer so it should look like this
X+2= 7
-2. -2
———
X= 5

B: 15-4=11
+4. +4
————-
X= 15

C: 4(3) = 12

D: 50/5 = 10

Btw this should be easy, try doing it on to your own now.

6 0

3 years ago