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3 years ago

Determine whether the number is rational or irrational and round it to the nearest hundredth. - 3/7

Mathematics

2 answers:

Artyom0805 [142]3 years ago

8 0

Answer:

-3/7 is a rational because as it can be written as p/q form where p/q are integers and q≠0.

-3/7 = -0.4285

To the nearest hundredth,

=> -0.43

ivann1987 [24]3 years ago

6 0

Answer:

Yes, it's a rational number

Step-by-step explanation:

-3/7. It is a rational because. It can be written as p/q form. Where p/q are non zero number. And in decimal it would be -0.42

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A circle has a circumference of 25.12 inches what is the diameter of the circle

BigorU [14]

Answer:

Step-by-step explanation:

Recall these two equations for circumference and diameter.

Circumference = 2*pi*radius

Diameter = radius*2

25.12 = 2*pi*radius

Radius = 4

Diameter = 4*2 => 8

Thus the diameter is 8

4 0

3 years ago

Evaluate f(x) = 2x +3 for f(4) a-11 b-8 c-4 d-3

Scrat [10]

Answer:

the answer is a-11

Step-by-step explanation:

f(x)=2x+3

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f(4)=8+3

f(4)=11

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2 years ago

Let X be the number of Heads in 10 fair coin tosses. (a) Find the conditional PMF of X, given that the first two tosses both lan

inn [45]

Answer:

Follows are the solution to the given point:

Step-by-step explanation:

For option A:

In the first point let z be the number of heads which is available on the first two trails of tosses so, the equation is:

$P(X=k | z=2 ) = \begin{pmatrix} 10-2\\ k-2\end{pmatrix} (\frac{1}{2})^{k-2} (\frac{1}{2})^{10-k}$

$= \begin{pmatrix} 8\\k-2\end{pmatrix} (\frac{1}{2})^{k-2} (\frac{1}{2})^{10-k} \ \ \ \ \ \ \ \ \ \ \\\\$

$k= 2,3..........10$ For option B:

$P(X=k | X \geq 2 ) = \sum^{10}_{i=2} \begin{pmatrix} 10-i\\ k-i\end{pmatrix} (\frac{1}{2})^{k-i} (\frac{1}{2})^{10-k}$

$k= 2,3, 4.........10$

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3 years ago

What is the value of b? 0.4(3b+10)=19

svet-max [94.6K]

Hello!!

Isolate the variable by dividing each side by factors that don't contain the variable.

Your answer is 12.5.

Hope that you pass your test!!

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3 years ago

Read 2 more answers

What is the total cost of the menu? The total cost of the menu is $______ (approximately 2 decimal places)

stiks02 [169]

Answer:

4.67

Step-by-step explanation:

0.25 + 0.50 + 0.75 + 1.25 + 1.875 = 4.675

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2 years ago

Determine whether the number is rational or irrational and round it to the nearest hundredth. - 3/7​

Determine whether the number is rational or irrational and round it to the nearest hundredth. - 3/7