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Juliette [100K]
3 years ago
7

Eva has 2 apples in her basket she eats 1 apple and gives 1 apple to her friend how many apples does Eva have now

Mathematics
1 answer:
V125BC [204]3 years ago
3 0
She has zero apples now. Since there was 2 at the start, then she eats one (1 apple) then again another apple is subtracted, leaving Eva with zero apples.
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Which of these is the algebraic expression for 5 times the sum of 2 and y
Vaselesa [24]
The answer is d because 2+y is the sum of 2 and y and then you multiply it by 5
8 0
3 years ago
Read 2 more answers
F(n)=5.(-2)n-1<br>Complete the recursive formula of f(n).​
Alex73 [517]

Answer:

a(n) = (-2)(a_{n-1})

a_{1}=5

Step-by-step explanation:

The given expression is in the form of the explicit formula of a geometric sequence.

f(n) = a(r)^{n-1}

Where 'a' = First term of the sequence

r = common ratio

Recursive formula of a geometric sequence is,

a(n) = (a_{n-1}).(r)^{n-1}

a(n) = (-2)(a_{n-1})

Where, a_{1}=5

So the recursive formula will be a(n) = (-2)(a_{n-1})

6 0
3 years ago
Can someone tell me the right answer pls and thank you
umka2103 [35]
B. -2 is the aswers

hope it help... :)
7 0
3 years ago
Can i please have help with number 6
Allisa [31]
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  = sqrt  (16 + 4) = sqrt20 
so radius = sqrt 20 / 2 = sqrt5
so r^2 = 5


Center of the circle = coordinates of the midpoint of the diameter =

-8-12/2 , 2-0 / 2  =    (-10, 1)

(x - a)^2 + (y - b)^2 = r^2  is general form of a circle so here the circle is:_

(x + 10)^2 + (y - 1)^2 = 5  Answer

Its B
7 0
3 years ago
A school teacher wants to survey students at her elementary school. She surveys 20 students from each grade level. What type of
Elan Coil [88]

Answer:

Stratified Random sampling

Step-by-step explanation:

When a random observations are selected from a number of individual groups in a particular population, the type of sampling technique is called Stratified Random sampling. Stratified Random sampling begins with the partitioning or splitting or a population into subgroups. A number of random selection are then made from each of the subgroups to form a collection of larger samples. This is different from the simple random sampling technique which makes random selection directly from a larger sample or population without prior partitioning of the population. The different grades of students represents the individual stratum from which random selections are made.

4 0
3 years ago
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