Convert - 3. - 3. - 3 to exponential form.

I’m trying to correct this problem but I don’t know how can someone help me

BartSMP [9]

Remark

It is not a straight line distance from the park to the mall. None of the answers give you that result. And if you know what displacement is, none of the answers are really displacement either. The distance is sort of a "as the crow flies." distance. There's a stop off in the middle of town.

Method

You need to use the Pythagorean Formula twice -- once from the park to the city Center and once from the city center to the mall.

Distance from the Park to the city center.

a = 3 [distance east]

b = 4 [distance south]

c = ??

c^2 = 3^2 + 4^2 Take the square root of both sides.

c = sqrt(3^2 + 4^2)

c = sqrt(9 + 16) Add

c = sqrt(25)

c = 5

So the distance from the park to the city center is 5 miles

Distance from City center to the mall

a = 2 miles [distance east]

b = 2 miles [distance north]

c = ??

c^2 = a^2 + b^2 Substitute

c^2 = 2^2 + 2^2 Expand this.

c^2 = 4 + 4

c^2 = 8 Take the square root of both sides.

sqrt(c^2) = sqrt(8)

c = sqrt(8) This is the result

c = 2.8

Answer

Total distance = 5 + 2.8 = 7.8

6 0

3 years ago

Solve. d + 4 = –1 A. –5 B. –3 C. 3 D. 5

77julia77 [94]

The answer to your question is -5

7 0

3 years ago

Read 2 more answers

32% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and a

Tems11 [23]

Answer:

a) $P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211$

b) $P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668$

c) $P(2 \leq x \leq 5)=0.211+0.264+0.218+0.123=0.816$

Step-by-step explanation:

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.32)$