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svetlana [45]
3 years ago
14

A factory makes lightbulbs. The probability that a bulb is defective is 1/8 If 500 lightbulbs are tested, about how many are exp

ected to be defective?
A.
8

B.
50

C.
63

D.
437
Mathematics
2 answers:
zhannawk [14.2K]3 years ago
6 0

Answer:

c

Step-by-step explanation:

ale4655 [162]3 years ago
3 0

Answer:

C. 63

Step-by-step explanation:

took the test

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The pyramid shown has a square base that is 12 centimeters on each side. The slant height is 18 centimeters. What is the surface
almond37 [142]

The surface area of the pyramid is 576.

<em>The square base is 144. It's just a square, so you multiply 12 (length) and 12 ( width) , which equals 144. </em>

<em>Then you find the area of one of the triangles. The equation to find triangles goes like this: 0.5 x B (base: 12) x H (height: 18). That would be 6 x 18 which is 108.</em>

<em>Since you got the area of 1 triangle and there are 4 triangles you have to multiply 108 by 4. That'll give you 432.</em>

<em>SO since you have the area of all the triangles and the square base the last thing you have to do is just add it all up. </em>

<em>The area of the triangles plus the area of the square base = the surface area.</em>

<u>432 cm + 144 cm =576 cm.</u>

7 0
3 years ago
The cross section of a beehive reveals it is made of regular hexagons. what is the measure of each angle in a regular hexagon?
defon
Regular hexagon consists of six equilateral triangles. The angle of a hexagon is equal to the sum of two angles in an equilateral triangle.

60^o+60^o=120^o


4 0
3 years ago
Read 2 more answers
PQ is the perpendicular bisector of MN what is QN?
sweet-ann [11.9K]

PN = PM

6x + 1 = 10x - 17

Add both sides 17

6x + 1 + 17 = 10x - 17 + 17

6x + 18 = 10x

Subtract both sides 6x

6x - 6x + 18 = 10x - 6x

18 = 4x

Divide both sides by 4

18 ÷ 4 = 4x ÷ 4

9/2 = x

x = 9/2

___________________________

QN = 2x + 5

QN = 2 × ( 9/2 ) + 5

QN = 9 + 5

QN = 14

6 0
3 years ago
C=5/9(F-32) If it's 32 degrees f how do I find the corresponding temperature in Celsius?
Sveta_85 [38]
C = 5/9(F - 32)....when F = 32...so sub in 32 for F
C = 5/9(32 - 32)
C = 5/9(0)
C = 0

so at 32 F, it is 0 C
8 0
3 years ago
Do this worksheet if someone do I will make him or her brainly if correct
kow [346]

Step-by-step explanation:

1) 15 % games lost

2) 3/20

3) 271/500

4) 12/25

3 0
3 years ago
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