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4 years ago

5

I need help with this problem.

1 answer:

liberstina [14]4 years ago

6 0

4050 divided by 3 = 1350
There is 4050 people in an arena and there is 3 sections of seats. How many people are in one section of seats?

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Solve the following word problem by using an equation and factoring. The sum of a positive number and its square is 20. What is

riadik2000 [5.3K]

Number: n
square of number: n^2
sum of n and n^2 is n+n^2=20
Rewriting this equation, we get n^2+n-20=0 = (n+5)(n-4) = 0

Then n+5=0 and n-4=0, so n = -5 and n = 4.

You must check both results. It could happen that both are correct, or that only one is correct.

5 0

4 years ago

What are the domain and range of the function

____ [38]

Answer:

Step-by-step explanation:

I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me my frnd..

8 0

3 years ago

Read 2 more answers

10 points and brainliest to correct answer plz plz answer plz help

ohaa [14]

The answer is B. A squared + B squard = C squared.

4 0

4 years ago

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A family consisting of three persons—A, B, and C—goes to a medical clinic that always has a doctor at each of stations 1, 2, and

Free_Kalibri [48]

Answer:

Step-by-step explanation:

When A, B,C are equally likely to be assigned to any one of the stations 1,2 or 3

we find that each one assigned to one station has probability 1/3

Also each person is independent of the other.

Probability that

a) All three family members are assigned to the same station

= P(ABC) to same station

= P(ABC) to 1+P(ABC) to 2 +P(ABC) to 3

=3*P(A)P(B)P(C) since independent

= $3*(\frac{1}{3} )^3\\=\frac{1}{9}$

b) This would be equivalent to 1- all 3 to the same station

= $1-\frac{1}{9} \\=\frac{8}{9}$

c) Every member to a different station

A has 3 choices while B has remaining 2 and C has 1

Hence prob = $\frac{3*2*1}{3*3*3} =\frac{2}{9}$

7 0

3 years ago

A woman making $25 an hour and gets a %15 raise. After the raise , how much does she earn for working 8 hours?

olga55 [171]

$28.75 an hour.

If she worked $25 an hour, then got a raise of 15%...It turns into $28.75.

To get the days income, you simply multiply the rate by the time. $28.75 times 8 to get $230.

Hope this helps!

7 0

4 years ago

Read 2 more answers