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shepuryov [24]
3 years ago
9

Radius of circle O has a slope of 2.5. What is the slope of the line tangent to circle O at point A? 0.8

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
4 0
The correct answer is D. -5
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What is the arithmetic mean of the following numbers?<br> 3,5,6,7,9,6,8
9966 [12]

Answer:

6 3/7

Step-by-step explanation:

Remember, the mean is the average of the number

Meaning that you have to add up all the numbers then divide them by the amount of numbers there are.

3, 5, 6, 7, 9, 6, 8

(3 + 5 + 6 + 7 + 9 + 6 + 8) / 7

44 / 7

6 3/7

8 0
3 years ago
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The base of a lamp is solid glass in the shape of a square prism. Each side of the square measures 5 in. If 300 in. of
Elenna [48]

Answer:The answer is 12

Step-by-step explanation:

I cheated

4 0
3 years ago
One day, eleven babies are born at a hospital. Assuming each baby has an equal chance of being a boy or girl, what is the probab
Andrews [41]
You only need to consider the situations where 10 or 11 of the babies are girls, then subtract those probabilities from 1.  This will give probability that any other number up to 9 of the babies are girls.

Use binomial theorem.
P(x=k) = (nCk) p^k (1-p)^{n-k}

n = 11
k = 10,11
p = 1/2

P(x=10) = 11 (\frac{1}{2})^{11} = \frac{11}{2048} \\  \\ P(x=11) = 1(\frac{1}{2})^{11} = \frac{1}{2048} \\  \\ P(x \leq 9) = 1 - \frac{11}{2048} - \frac{1}{2048} \\  \\ P(x \leq 9)=\frac{2036}{2048} = \frac{509}{512}
4 0
3 years ago
Iron has a density of 7.9 g/cm³. Gold has a density of 19.3 g/cm³.
alexandr402 [8]
Density = m/v
3.86kg=3860g
d= 3860/200
= 19.3g/cm^3
therefore it is gold.
7 0
2 years ago
The area of a square is 9 centimeters squared (cm^2) If the sides of the square are doubled in length, what is the new area, in
Mice21 [21]

Answer:

The question says area of a square = 9 cm squared.

And they said if the sides are doubled in length what is the new length

so new length = 9 cm^2 × 9 cm^2

which should give you 81cm^2

therefore your answer should be = C

7 0
2 years ago
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