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2 years ago

I DONT UNDERSTAND PLEASEEEEE HELP. thanks management !

Mathematics

1 answer:

lakkis [162]2 years ago

4 0

Answer:

False

Step-by-step explanation:

Exponents do involve multiplication, but the power that a number is raised to is not the number it is multiplied by. Instead, exponents are used to determine how many times that number is multiplied by itself (to a certain extent, to explain better, it will have five "2's" being multiplied in this case). So, in the case of $2^{5}$ , 2 is multiplied by itself 5 times, like so - 2×2×2×2×2 = 32. If we were to calculate 2×5, we would get 10, and $32\neq10$ (32 is not equal to 10). Therefore, $2^{5}$ is not the same as 2·5, and therefore the question is false.

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Approximately 40% of the calls to an airline reservation phone line result in a reservation being made. (round to three decimal

IRISSAK [1]

Answer:

The probability that none of the 10 calls result in a reservation is 0.60%. In turn, the probability that at least one call results in a reservation being made is 99.40%.

Step-by-step explanation:

Since approximately 40% of the calls to an airline reservation phone line result in a reservation being made, supposing an operator handles 10 calls, to determine what is the probability that none of the 10 calls result in a reservation, and what is the probability that at least one call results in a reservation being made, the following calculations must be performed:

0.6 ^ 10 = X

0.006 = X

0.006 x 100 = 0.60%

Therefore, the probability that none of the 10 calls result in a reservation is 0.60%.

100 - 0.60 = 99.40

In turn, the probability that at least one call results in a reservation being made is 99.40%.

3 0

2 years ago

The graph of a system of equations with the same slope and the same y-intercepts will have no solutions.

Liula [17]

I think the correct answer from the choices listed above is option C. The graph of a system of equations with the same slope and the same y-intercepts will never have no solutions. Rather, it has an infinite number of solutions since all points of the lines intersects.

4 0

3 years ago

13-5m=4-6m show work please

Vesna [10]

First subtract 4 from both sides
$13 - 4 - 5m = - 6m$

then simplify
$9 - 5m = - 6m$

add -5 to both sides
$9 = - m$

since a variable shouldn't be negative the answer should be
$m = - 9$

(I prefer having the variable on the left side)

4 0

3 years ago

The difference between the prediction interval and the confidence interval is that A. the prediction interval is narrower than t

Kitty [74]

Answer:

The prediction interval provides an interval estimation for a particular value of y while the confidence interval does it for the expected value of y.

Step-by-step explanation:

A. the prediction interval is narrower than the confidence interval.

the prediction interval is always wider than the confidence interval.

B. the prediction interval provides an interval estimation for the expected value of y while the confidence interval does it for a particular value of y.

False

C. the prediction interval provides an interval estimation for a particular value of y while the confidence interval does it for the expected value of y.

True

D. the confidence interval is wider than the prediction interval.

the prediction interval is wider

8 0

3 years ago

The ratio of the circumferences of two circles is 2:3. If the large circle has a radius of 39cm what is the radius of the small

maks197457 [2]

You just multiple my guy. 2:3 is like 2/3. What is 2/3 of 39
39*2/3 = 26

6 0

2 years ago

Read 2 more answers