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3 years ago

What expression is equivalent to 2 m plus m plus m

Mathematics

1 answer:

Masteriza [31]3 years ago

8 0

Answer: 2m+m+m is really the same thing as saying m+m+m+m, or 4m. Use whatever you like as the expression :)

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Which relation is a function? Question 3 options: {(1, 2); (1, 3); (1, 4); (1, 5)} {(1, 2); (2, 3); (3, 4); (4, 5)} {(1, 2); (3,

NeTakaya

To be a function for every identical x value it has to have a different Y value. If the set has two identical X values but they have different Y values it can't be a function.

The set that is a function is:

{(1, 2); (2, 3); (3, 4); (4, 5)}

4 0

2 years ago

If my dog is on a 5ft long leash, what is the area of the circle that he can run around in

xxMikexx [17]

Answer:

2/5

Step-by-step explanation:

vlabkajsheyevw8qvetegvhwhw

7 0

3 years ago

Hello math olzzzzzzz

galben [10]

Answer:

<u>Checkmark:</u>

✓ The sequence is geometric

✓ The recursive formula for the sequence is $An = A_{n-1}(-3)$ ; $A_{1} =-2$

✓ The explicit formula for the sequence is $t_{n} = (-2) (-3)^{n-1}$

Step-by-step explanation:

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by -3 gives the next term.

r = -3

$t_{n} = t_{1} r^{n-1}$

$t_{1}$ = -2

Substitute the values in the equation:

$t_{n} = (-2) (-3)^{n-1}$

This is a explicit formula since the next value depends on the position of n (1, 2, 3 .etc)

The recursive formula would be:

$An = A_{n-1}(-3)$

Checkmark:

✓ The sequence is geometric

✓ The recursive formula for the sequence is $An = A_{n-1}(-3)$ ; $A_{1} =-2$

✓ The explicit formula for the sequence is $t_{n} = (-2) (-3)^{n-1}$

6 0

3 years ago

Assume A, B, C, and D function independently. If the probabilities that A, B, C, and D fail are 0.10, 0.05, 0.10 and 0.20, respe

KIM [24]

Answer:

The probability that the system function is 0.6156

Step-by-step explanation:

We can calculate the chances of two or more independent events by multiplying the chances.

Since the chances of fail are given, to get the chance of pass, we subtract from 1.

Probability that it works = 1 - prob that it fails

For A (probability of fail = 0.10)

Probability that it works = 1 - 0.10 = 0.9

For B (probability of fail = 0.05)

Probability that it works = 1 - 0.05 = 0.95

For C (probability of fail = 0.10)

Probability that it works = 1 - 0.10 = 0.9

For D (probability of fail = 0.20)

Probability that it works = 1 - 0.20 = 0.8

Therefore, the probability that the system function is:

$0.9 * 0.95 * 0.9 * 0.8 = 0.6156$

Approximately, the probability can be written as 0.6 to one decimal place.

3 0

2 years ago

Create a set of data that contains exactly 4 values and has a mean of 20. Please help me out. I really need it!

Nadusha1986 [10]

The set of data can be:

20, 20, 20, 20

Their mean would be:

20 + 20 + 20 + 20 = 80/4 = 20

Hope this helps :)

8 0

3 years ago