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slava [35]
3 years ago
8

A quality control technican checked a sample of 30 bulbs. Two of the bulbs were defective. If the sample was representative, fin

d the number of bulbs expected to be defective in a case of 450.
Mathematics
1 answer:
masha68 [24]3 years ago
3 0

Answer:30

Step-by-step explanation: Put 30 times 15 into a calulater. Then do 15 times  2 then you find your answer.

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Bill bought a new cellular phone. His monthly bill will be $34.99 each month which includes 100 minutes of use. Additional minut
GarryVolchara [31]
B) C=0.23m+34.99

because you get you base price definitely and extra minute price can be removed if you don't use more than 100
6 0
2 years ago
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Determine whether this system of equations has one solution, no solution, or infinitely many solutions.
prohojiy [21]

Answer:

The only solution I see is for x=0

Step-by-step explanation:

y=8x+2

y=-8x+2

y=y so substitute:

8X+2=-8X+2

Subtract 2 from each side

8X=-8X

divide each side by 8

x=-x

The only solution I see is for x=0

4 0
3 years ago
If cos Θ = negative 4 over 7, what are the values of sin Θ and tan Θ?
FinnZ [79.3K]
Given cos theta is equal to - 4/ 7 then we can conclude that theta is in the second and third quadrants. In this case, the other leg is equal to square root of (7^2 - 4^2 ) equal to square root of 33. In this case, sin theta can be equal to +- square root of 33 / 7 and tan theta is equal to +-square root of 33 / 4.
7 0
3 years ago
At a certain college, 28% of the students major in engineering, 18% play club sports, and 8% both major in engineering and play
Alex

Answers: 0.286

Explanation:

Let E → major in Engineering

Let S → Play club sports

P (E) = 28% = 0.28

P (S) = 18% = 0.18

P (E ∩ S ) = 8% = 0.08

Probability of student plays club sports given majoring in engineering,

P ( S | E ) = P (E ∩ S ) ÷ P (E) = 0.08 ÷ 0.28 = 0.286

8 0
3 years ago
The decimal number 2.0159793 when rounded to 3 significant figures is?​
Paul [167]

Answer:

2.02 may be I thinks tell me if it's right

4 0
3 years ago
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