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3 years ago

I need help with this one

Mathematics

1 answer:

Gwar [14]3 years ago

8 0

Factors always multiply each other.

The only option that multiplies something is (y^3 + 3)
So the answer is B.

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If 3/5 of a sum of money is 1200. what is the sum

inna [77]

Answer:

2000

Step-by-step explanation:

let the sum=x

3/5 of x=1200

x=1200×5/3=2000

5 0

3 years ago

Read 2 more answers

Help, please! :(

Mashutka [201]

Answer:

A. The greatest one year increase in tuition ocurred from 1997 to 1998.

Step-by-step explanation:

If you look at the graph, at the points above 1997 and 1998, you'll see that the dots are separated by two lines, not just one.

3 0

3 years ago

I need a step by step instruction please

Alika [10]

Answer: $x=52$

Step-by-step explanation:

$x-45+45=7+45\\x=52$

3 0

2 years ago

1. What percent of students need swimming lessons?

ANEK [815]

1.)
460. 100%
74. X
X= 100•74/460
X=16.09%

2.)
175 100%
172. X
X=172•100/175
X=98.28%

4 0

3 years ago

Customer arrivals at a bank are random and independent; the probability of an arrival in any one-minute period is the same as th

deff fn [24]

Answer:

a)0.2240

b)0.5768

Step-by-step explanation:

Given:

µ=3

Poison probability is given by :

$f_k=\frac{\mu^ke^-^\mu}{k!}$

a) Evaluating at k=3

$f(3)=\frac{3^3e^-^3}{3!} \approx 0.2240$

b)Evaluating at k=0,1,2:

$f(0)=\frac{3^0e^-^3}{0!} \approx 0.0498$

$f(1)=\frac{3^1e^-^3}{1!} \approx 0.1494$

$f(2)=\frac{3^2e^-^3}{2!} \approx 0.2240$

Use complement rule:

P(x≥3)= 1 - f(0) - f(1) - f(2)= 1- 0.0498 - 0.1494 - 0.2240 =0.5768

4 0

3 years ago