3 years ago

Plz help me with this

2 answers:

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.

You might be interested in

Solve for z -9(d+z)=-2z+59

neonofarm [45]

$-9(d+z)=-2z+59\\\\\text{Use multiply distributive property:}\\a\cdot(b+c)=ab+ac\\\\-9d-9z=-2z+59\ \ \ |+9d\\\\-9z=-2z+59+9d\ \ \ |+2z\\\\-7z=59+9d\ \ \ \ |:(-7)\\\\\boxed{z=-\dfrac{59+9d}{7}}$

7 0

4 years ago

Read 2 more answers

Tom wants to put up Christmas lights around his house.

Alex_Xolod [135]

Answer:

525 meters

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Margo’s Dad offers to give her 5 cents on sunday. Then for each day of the week, he offers to give her 5 times the amount from t

goblinko [34]

Answer:

Step-by-step explanation:

First you need to do 5x5=25

6 0

3 years ago

Read 2 more answers

I need help with 1 and 2

oee [108]

1) -149, -1; -148, -2; -147, -3
2) No, according to the commutative property of addition, it does not matter the order they are put in.

Hope this helps!

6 0

3 years ago

Read 2 more answers

Approximate the real zeros of x^4-5x^3+6x^2-x-2 to the nearest tenth. a. 0.4, c. 4, 3.4 b. , 3.4 d. -4, 3.4

levacccp [35]

Answer:

x=−0.433107,3.352224

Rounding up should be -0.4 and 3.4

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers