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yawa3891 [41]
3 years ago
15

I need help with all pls help me

Mathematics
1 answer:
Margaret [11]3 years ago
7 0
Yeah,black one Lol...
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In a shipment of 58 vials, only 13 do not have hairline cracks. if you randomly select 4 vials from the shipment, what is the pr
PIT_PIT [208]
For this problem, we use the repeated trials equation:

P = n!/r!(n-r)!*p^(n-r)*q^r
where
P is the total probability of having r successful trials out of the total n trials. p is equal to 13/58, while q is equal to 1 - 13/58.

P = 4!/4!(4-4)!*(13/58)^(4-4)*(1 - 13/58)^4
P = 0.362 or 36.2%
5 0
4 years ago
In a given figure if o is the centre of circle and oabc is a parallelogram find the value of abc
ahrayia [7]

From the given information, we get the value of ABC = 120°.

<h3>How to estimate the value of ABC?</h3>

Given: In the figure, O exists the center of the circle and OABC exists as a parallelogram.

Now, the radius of the circle exists

OA = OB = OC

Opposite sides of a parallelogram are equal

AB = OC and OA = BC

In ∆OAB,

OA = OB = AB and,

In ∆OCB,

OC = OB = BC

Therefore, ∆OAB and ∆OCB exist in equilateral triangles.

All angles of an equilateral triangle are equivalent to 60°.

Hence, ∠ABC = ∠OBA + ∠OBC

∠ABC = 60° + 60°

∠ABC = 120°

Therefore, the value of ∠ABC = 120°.

To learn more about parallelogram refer to:

brainly.com/question/24291122

#SPJ9

6 0
2 years ago
HELP PLEASE I honestly need help please help
eduard

9514 1404 393

Answer:

  5.  x = 160; y = 20

  6.  h = 125°; g = i = 55°

Step-by-step explanation:

Vertical angles are found on opposite sides of a point where lines cross. Each angle is formed from rays opposite those of the other angle. Vertical angles are congruent.

5. x° and 160° are vertical angles: x° = 160°

  y° and 20° are vertical angles: y° = 20°

__

6. h° and 125° are vertical angles: h° = 125°

The angles g° and 125° form a "linear pair" so total 180°.

  g° = 180° -125° = 55°

  g° and i° are vertical angles: g° = i° = 55°

4 0
3 years ago
Riley has a piece of yarn that is 6 1/2 ft long. She wants to cut the yarn into sections that are each 1/4 ft long.
Semmy [17]

Answer:

26

Step-by-step explanation:

First take your too fractions.

6 1/2

1/4

Divided 6 1/2 by 1/4 to get your answer!

7 0
4 years ago
Read 2 more answers
If f (x)=x^3 + 2x2^-3, what is f (-1)?
scoray [572]

Answer:

1

Step-by-step explanation:

f(x)=x^3+2x^2-x-1

f(1)=1^3+2(1)^2-1-1

f(1)=1+2*1-1-1

f(1)=1+2-1-1=3-1-1=2-1=1

3 0
3 years ago
Read 2 more answers
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