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3 years ago

Jemina flips a disc of the type shown below:

Mathematics

1 answer:

LekaFEV [45]3 years ago

5 0

Answer: 1/2

Step-by-step explanation: There are only 2 sides in the disc, so there will be a 1/2 chance of landing in one side, and a 1/2 chance of landing in the other side.

So the answer is 1/2!

Hope this helped!

Plz mark brainliest!

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Find the surface area of the sphere.

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2 years ago

Multiply. Write 4/1/5 time 8/9 as a mixed number in simplest form

choli [55]

$4 \times \frac{1}{5} \times \frac{8}{9} \\ \\ \frac{21}{5} \times \frac{8}{9} \\ \\ \frac{168}{45}$
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2 years ago

PLEASE HELP!!

aev [14]

Answer:

D. No, because $P(A|B)=0.22$ and the $P(A) = 0.53$ are not equal.

Step-by-step explanation:

Given:

Probability of doing yard work is, $P(A)=53\%=0.53$

Probability of raining, $P(B)=68\%=0.68$

Probability of doing yard work and it raining is, $P(A\cap B)=15\%=0.15$

Now, two events A and B are independent if,

$P(A|B)=P(A);P(B|A)=P(B)$

Conditional probability of event A given that B has occurred is given as:

$P(A|B)=\frac{P(A\cap B}{P(B)}\\P(A|B)=\frac{0.15}{0.68}=0.22$

So, $P(A|B)=0.22\ and\ P(A)=0.53$

Since, $P(A|B)\ne P(A)$ , A and B are not independent events.

8 0

3 years ago

Find cotθ, cosθ, and secθ, where θ is the angle shown in the figure.

Darina [25.2K]

Answer:

$\cos( \theta) = \frac{5}{8} \\ {8}^{2} = {5}^{2} + {opp}^{2} \\ {opp}^{2} = 64 - 25 = 39 \\ opp = \sqrt{39} \\ \sin(\theta) = \frac{\sqrt{39}}{8} \\ \tan(\theta) = \frac{ \sqrt{39} }{5} \\ \cot(\theta) = \frac{1}{\tan(\theta)} = \frac{1}{\frac{ \sqrt{39} }{5}} \\ \cot(\theta) = \frac{5}{ \sqrt{39} } \\ \csc( \theta) = \frac{1}{\sin(\theta)} = \frac{1}{\frac{\sqrt{39}}{8}} \\ \csc( \theta) = \frac{8}{ \sqrt{39} } \\ \sec( \theta) = \frac{1}{\cos( \theta) } = \frac{1}{ \frac{5}{8} } \\ \sec( \theta) = \frac{8}{5}$

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2 years ago

10) The scale of a map is 1 inch represents 4 miles. How many miles does 0.5 inches represent?

scoundrel [369]

Answer:

2 miles

Step-by-step explanation:

1 in=4miles

0.5 in=2miles

so divide by two on each side

7 0

2 years ago

Read 2 more answers