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Sav [38]
3 years ago
12

Plz help me with this

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
4 0

hey friend it is Observational study because it says that her records hourly temperature over the course of several years in order to make a decision(variations) or to analyse his experiments. ;)

Svetllana [295]3 years ago
3 0

Answer:  B) Observational Study

<u>Step-by-step explanation:</u>

A) Experiment is when the researcher influences the results in some manner

B) Observational Study is when the researcher observes or measures the data but does not influence the results.

C) Survey is when the researches collects data from a sample group to evaluate data about a larger group.

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Please hurry i need help
kirza4 [7]

Answer:

(x^2+16x+63)

Step-by-step explanation:

(x^2+17x+72)-(1x+9)

(x^2+16x+63)

If this is incorrect I appologize

6 0
3 years ago
Read 2 more answers
The sum S of the first n integers is given by the formula S=1/2n(n+1). How many integers must be taken to have a sum of
statuscvo [17]

Answer:

25

Step-by-step explanation:

We require to solve for n, hence

\frac{1}{2} n(n + 1) = 325

multiply both sides by 2 to eliminate the fraction

n(n + 1) = 650

n² + n = 650

subtract 650 from both sides to have equation in standard form

n² + n - 650 = 0 ← in standard form

(n + 26)(n - 25) = 0 ← in factored form

equate each factor to zero and solve for n

n + 26 = 0 ⇒ n = - 26

n - 25 = 0 ⇒ n = 25

however, n > 0 ⇒ n = 25


5 0
3 years ago
Can someone help me there is a picture of problem
german

Answer:

8 interior angles

Step-by-step explanation:

  • There is a simple trick to finding the number of interior angles
  • For instance, a triangle has 3 sides, and how many angles are in a triangle? 3
  • A square has 4 sides and 4 interior angles
  • A pentagon has 5 sides and 5 interior angles
  • So an octagon, the shape we have here, has 8 sides so 8 interior angles
8 0
3 years ago
I don’t quite get this question so I need some help please.
WARRIOR [948]

Answer:

if the area of the base is 20 then the volume is 300 if it's 16 then it's 240 but if it's 25.6 then the volume is 384. I would give you a specific answer if the area of base was specified

5 0
4 years ago
In how many ways can 11 bowlers be
Aneli [31]

Answer:

Yes ans = 27720. Total possibilities = C(4,1) * C(6,4) * C(11,6) = 27720.

8 0
3 years ago
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