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3 years ago

I need help with math I have no clue how to do these

Mathematics

2 answers:

Fofino [41]3 years ago

8 0

20579.5 or something I think lol

I’m not very good at math, I mainly use calculators but I didn’t have this on me today haha

Btw, me and my friend made a deal, if I lost the deal, I’d have to upload an embarrassing photo to my private insta. Should this be that photo? Please explain why.

borishaifa [10]3 years ago

7 0

The answer is 20579.5

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What is the probability of drawing the compliment of a king or a

inna [77]

Answer:

The probability of drawing the compliment of a king or a queen from a standard deck of playing cards = 0.846

Step-by-step explanation:

Step(i):-

Let 'S' be the sample space associated with the drawing of a card

n (S) = 52C₁ = 52

Let E₁ be the event of the card drawn being a king

$n( E_{1} ) = 4 _{C_{1} } = 4$

Let E₂ be the event of the card drawn being a queen

$n( E_{2} ) = 4 _{C_{1} } = 4$

But E₁ and E₂ are mutually exclusive events

since E₁ U E₂ is the event of drawing a king or a queen

step(ii):-

The probability of drawing of a king or a queen from a standard deck of playing cards

P( E₁ U E₂ ) = P(E₁) +P(E₂)

$= \frac{4}{52} + \frac{4}{52}$

P( E₁ U E₂ ) = $\frac{8}{52}$

step(iii):-

The probability of drawing the compliment of a king or a queen from a standard deck of playing cards

$P(E_{1}UE_{2}) ^{-} = 1- P(E_{1} U E_{2} )$

$P(E_{1}UE_{2}) ^{-} = 1- \frac{8}{52}$

$P(E_{1}UE_{2}) ^{-} = \frac{52-8}{52} = \frac{44}{52} = 0.846$

Conclusion:-

The probability of drawing the compliment of a king or a queen from a standard deck of playing cards = 0.846

5 0

3 years ago

If you prove that △ABD is congruent to △CDB, which general statement best describes what you have proved?

fredd [130]

Answer:

A: Opposite sides of a parallelogram are congruent

Step-by-step explanation:

The only diagonal involved is BD, so none of the statements regrading diagonals has been proven. The only thing proven is ...

AB ≅ CD . . . . opposite sides are congruent

AD ≅ CB . . . . opposite sides are congruent

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2 years ago

The function below crosses the x-axis once. y=3x^2-8x+8

Mekhanik [1.2K]

I believe it is false because it only passes through the y-axis not the x-axis.

6 0

3 years ago

1.V Diferența a două numere este 38, iar descăzutul este 76. Scăzătorul este:

AysviL [449]

Răspuns:

Explicație pas cu pas:

Dat fiind :

Diferența dintre numere = 38

Subtractorul = x

Scădere = 76

Diferența dintre numere;

Scădere - scădere = diferență

76 - scădere = 38

76 - 38 = subtractor

Subtractor = 38

6 0

3 years ago

Find the value of x

KATRIN_1 [288]

Answer:

Step-by-step explanation:

Here we have the length of the hypotenuse (16) and that of the vertical leg (11). The cosine function inputs this data:

adjacent side 11

sin x = ----------------------- = ---------------- = 0.6875

hypotenuse 16

We find x using the arccos function: arccos 0.6875 = 0.81 radians or

46.57 degrees

3 0

4 years ago