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3 years ago

Which of the following events are independent?

Mathematics

1 answer:

Svetach [21]3 years ago

6 0

Answer:

1 only

Step-by-step explanation:

because it talks about a coin and a dice and the rest is about cards

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4000 divided by 95 and show the work

Aloiza [94]

4000 divided by 95 is 42.1052631579because you can use a division table to answer this question 4000 inside 95 outside

8 0

3 years ago

In a survey of 2,800 people who owned a certain type of car, 840 said they would buy that type of car again. What percent of the

cluponka [151]

Answer:

30% of people surveyed were satisfied with the car.

Step-by-step explanation:

We are given:

Total participants in survey= 2800

People satisfied with car = 840

We need to find percent of the people surveyed were satisfied with the car.

The formula used is: $\frac{People \ satisfied \ with \ car}{Total \ participants \ in \ survey} \times 100$

$=\frac{840}{2800}\times 100\\=30\%$

So, 30% of people surveyed were satisfied with the car.

6 0

3 years ago

Find the slope of the normal line to y=x+cos(xy) at (0,1)

DaniilM [7]

Derivating the equation:

$y=x+\cos(xy)\Longrightarrow y'=1+(-y\sin(xy)-xy'\sin(xy))\iff \\\\y'=1-y\sin(xy)-xy'\sin(xy)\iff y'+xy'\sin(xy)=1-y\sin(xy)\iff \\\\y'=\dfrac{1-y\sin(xy)}{1+x\sin(xy)}$

So the slope of the tangent in the point (0,1) is:

$y'=\dfrac{1-y\sin(xy)}{1+x\sin(xy)}\Longrightarrow y'=\dfrac{1-1\sin(0\cdot1)}{1+0\sin(0\cdot1)}\Longrightarrow y'=1$

Then, the slope of the normal (n) line in the point (0,1) is:

$n\cdot y'=-1\Longrightarrow n\cdot1=-1\iff\boxed{n=-1}$

4 0

3 years ago

Read 2 more answers

Here, 30 points to whoever can answer these and explain... qwq

mr_godi [17]

I can't answer the last 2 but i can help your with the distributive property the answer to the first one is 66+6x because you distribute the 60 to each thing inside the parentheses 6×11=66 and six times X is 6X. The answer to the second one is 8x+56 because you distribute eight to x which is 8X and 8 times 7 which is 56

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3 years ago

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I need help with Question b

muminat

Answer:

Step-by-step explanation:

8 0

3 years ago