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Zepler [3.9K]
3 years ago
14

I have a homework question where I have to estimate the number of dentists in the UK. There is roughly 65,000 people in the UK a

nd they 90% probably visit every 4-6 months.
Mathematics
1 answer:
kozerog [31]3 years ago
4 0
I thought I had the answer srry
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In a randomly generated list of numbers from 0 to 6, what is the chance that
inna [77]

Answer:

1/7

Step-by-step explanation:

there are 7 number possibilities 0,1,2,3,4,5,6.

so if they each have an equal probability the answer is 1/7

8 0
3 years ago
Find a formula for the nth term of the geometric sequence. Assume the n begins with 1. a1=18, a2=9​
LUCKY_DIMON [66]

Answer:

Option E

Step-by-step explanation:

Explicit formula of a geometric sequence is,

T_n=a_1(r)^{n-1}

Here, a_1= First term

r= common ratio

n= number of terms

If, a_1=18 and a_2=9

Common ratio of the sequence r=\frac{a_2}{a_1}

r=\frac{9}{18}

r=\frac{1}{2}

By substituting these values in the formula,

T_n=18(\frac{1}{2} )^{n-1}

Therefore, Option E is the answer.

6 0
3 years ago
Factorize completely 3a2+2ab-12ac-8bc​
Viefleur [7K]

Answer:

(3a+2b) (a-4c)

Step-by-step explanation:

3 0
3 years ago
Can you help me please
katrin2010 [14]

Answer:

1:) x=6

2:)x= -10

3:) x=8

4:)x=-4

Step-by-step explanation:

3 0
3 years ago
The sum of two number is 6. Twice the first number added to three times the second number is 10. Write a system of equations and
seropon [69]

Answer:

4 and 2 are the required numbers which satisfies the given equations

Step-by-step explanation:

Let the two numbers be x and y

According to the first condition

their is is 6

which is

x + y =6                ........................(i)

Now according to second condition

twice the first number i.e. 2x added to three time the second number i.e. 3y is 10

in form of equation it could be written as

2x + 3y = 10           ........................(ii)

Now from first equation we have

x + y =6

subtracting y from both sides

x = 6 - y                    .....................(iii)

Now putting this value of x in equation (ii)

equation (ii) is

2x + 3y = 10

Putting the value gives

2(6-y)+3y = 10

opening the brackets

12 - 2y + 3y = 10

12 - y = 10

subtracting 12 from both sides

12 - y -12 = 10 -12

it becomes

- y = -2

multiplying both sides by (-1)

it becomes

(-1)(-y) = (-2) * (-1)

y = 2

Now we got the value of y put it in equation iii which is

x = 6 -y

putting the value

x = 6 - 2

x = 4

So the two numbers are x = 4 and y = 2

3 0
3 years ago
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