3 years ago

Suppose that you flip a coin 13 times. What is the probability that you achieve at least 5 tails?

1 answer:

5 0

Heads, or tails. It's 1/2 a chance, because either way you will either land heads or tails. It would be a probability of 1-(1/2)^5. Can you solve that?

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I need help I have 10 more minutes until this quiz ends plz help

Vladimir [108]

Answer:

The second and the third one

Step-by-step explanation:

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3 years ago

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Y=f(x)=8^x find f(x) when x=1/3???????

user100 [1]

Answer: 2

8 to the power of 1/3 is 2.

Step-by-step explanation:

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3 years ago

Class A has 25 pupils and class B has 28 pupils. Both classes sit the same maths test. The mean score for class A is 69. The mea

il63 [147K]

Answer:

Step-by-step explanation:

Mean would mean average, which in this case is $\frac{x+y}{2}$

so your equation would look like $\frac{69+x}{2}=41$

Next multiply both sides by to clear the fraction $2*(\frac{69+x}{2})$

to get $69+x=89$

Subtract 69 from both sides $69+x=82\\-69 -69$

you get $x = 13$

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2 years ago

For the function f(x)=|x−7|−4, evaluate f(x+1).

GarryVolchara [31]

Answer:

$\displaystyle{f(x+1)=|x-6|-4}$

Step-by-step explanation:

To evaluate $\displaystyle{f(x+1)}$ , substitute $\displaystyle{x}$ to $\displaystyle{x+1}$ so we should have:

$\displaystyle{f(x+1) = |x+1-7|-4}$

Evaluate the expression and finally, we have:

$\displaystyle{f(x+1)=|x-6|-4}$

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brainly.com/question/27923727 - How to find inverse and value of function

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2 years ago

The opposite of twelve percent of a number

Salsk061 [2.6K]

Step -by-step explanation: the opposite of a number is the number on the other side of the numbers line eg -5 is the opposite of 5 so-12% is the opposite of 12%

Answer:-12%

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3 years ago