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Monica [59]
3 years ago
5

To determine her heart rate, Keri divides up her day into three parts: moming, afternoon, and evening She then measures her hear

t rate at 2 randomly selected times during each part of the day. What type of sampling is used?
A. Convenience
B. Simple random
C. Stratified
D. Systematic
E. Cluster
Mathematics
1 answer:
balu736 [363]3 years ago
8 0
Idk if I’m right but I think the answer is E
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At the start of 2014 Tim's house was worth 100,000.
Novay_Z [31]
For this case we have a function of the form:
 y = A * (b) ^ t
 Where,
 A: initial amount
 b: growth rate
 t: time
 Substituting values we have:
 y = 100000 * (1.10) ^ 4
 y = 146410
 Answer:
 
the value of his house at the start of 2018 is:
 
y = 146410
5 0
3 years ago
Activity ||| : Define the following terms:
slamgirl [31]

7).Venn diagram is an illustration that uses circles to show the relationships among things or finite groups of things. Circles that overlap have a commonality while circles that do not overlap do not share those traits. Venn diagrams help to visually represent the similarities and differences between two concepts.

8).In set theory, the union of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other. A nullary union refers to a union of zero sets and it is by definition equal to the empty set.

9).The intersection of two or more given sets is the set of elements that are common to each of the given sets. The intersection of sets is denoted by the symbol '∩'. In the case of independent events, we generally use the multiplication rule, P(A ∩ B) = P( A )P( B ).

10).Sets in mathematics, are simply a collection of distinct objects forming a group. A set can have any group of items, be it a collection of numbers, days of a week, types of vehicles, and so on. Every item in the set is called an element of the set. ... Sets are usually represented using a roster form or a set builder form.

Step-by-step explanation:

please mark me brainliest

8 0
2 years ago
Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.
natulia [17]
Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

(x + 1)

(2x + 1)

(x + 2)

(5x + 1)

<span>(5x – 2)

Solution :

By multiplying (5x - 2) and (x + 2), the given trinomial will be obtain as follow. 
 </span>(5x - 2) * (x + 2) = (5x * x) + (5x * 2) - (2 * x) - (2 * 2)
=  <span>5x^2 + 10x - 2x - 4
= </span>5x^2 + 8x - 4
4 0
3 years ago
Read 2 more answers
Use the formula an = d (n − 1) + aj to write a formula for the arithmetic sequence below.
xenn [34]

Answer:

a_{n} = 4n - 2

Step-by-step explanation:

There is a common difference d between consecutive terms in the sequence, that is

6 - 2 = 10 - 6 = 14 - 10 = 18 - 14 = 4

This indicates the sequence is arithmetic with n th term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = 4 , thus

a_{n} = 2 + 4(n - 1) = 2 + 4n - 4 = 4n - 2

3 0
2 years ago
Help me with this pie chart [urgent i guess]​
Leokris [45]

(b) 40 * \frac{72}{360} = 40 * \frac{1}{5} = 8

(c) 360 - (72 + 144 + 81) = 360 - 297 = 63

(d) \frac{144}{360} = \frac{2}{5}

4 0
2 years ago
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