Determine whether the situation calls for a survey, an observational study, or an experiment. You want to find out if a new drug can help decrease the symptoms of migraine headaches.
experiment
observational study
survey
observational study is the wrong answer

Answers

Answer 1

Answer:

Experiment.

Step-by-step explanation:

It helps you determine the effect of the medication in a controlled environment with variables and controls.


Related Questions

What would be the volume to this equation?

Answers

Answer:

you times 11.3 by 15.1 then times it by 18.9

Manny's muffins sells 50 muffins each day. 12 of these are blueberry. If they sell a 150 muffins tomorrow, how many blueberry muffins can they expect to sell?

Answers

Answer:

36

Step-by-step explanation:

12 times 3

Answer:

probably 36

Step-by-step explanation:

Please help ASAP and show working out

Answers

Answer:

card 7 was removed

Step-by-step explanation:

This is so easy if you just do it one step at a time.

Anyway,

2 + 5 + 8 + 9 = 24

24 / 4 = 6

HELP PLEASE DUE IN 4 MINUTES

Answers

It’s 1 ()(‘GF ykyxmhxmhmxmhdmydkyxk)
^ that’s to match the character limit

A rocket is fired directly upwards with a velocity of 80 ft/sec. The equation for its height, H, as a function of time, t, is
given by the function
H (t) = -1612 + 80+
Find the time at which the rocket reaches its maximum height, and its maximum height.
5
a) O time =
22
sec, max height = 200 ft
b) O time = 80 sec, max height = 100 ft
5
c) O time =
2
sec, max height = 100 ft
d) O time = 5 sec, max height = 200 ft
5
e) Otime = sec, max height = 400 ft
23
Revie

Answers

Answer:

(c).

Step-by-step explanation:

h(t) = - 16 t² + 80 t

Coordinates of the vertex are:

t = - [tex]\frac{80}{2(-16)}[/tex] = [tex]\frac{5}{2}[/tex] = 2.5 sec.

h = - 16(2.5)² + 80(2.5) = - 100 + 200 = 100 ft.

5th grade math. Correct answer will be marked brainliest.

Answers

Answer: The answer would be (0,3)

Answer:

(0,3)

Step-by-step explanation:

The horizontal line is always x, and the vertical line is always y. You can see that D is 0 to the right and 3 up, so the answer will be (0,3)

The graph of the function y=f(x)+35 can be obtained from the graph of y=f(x) by one of the following actions:

Answers

I’m pretty sure it’s the second one if not I’m so sorry

Please answer this problem 3x−9<6

Answers

Answer:

your answer is five

Step-by-step explanation:

and stay safe and happy

what is 5m-4-m+2 simplify​

Answers

Step-by-step explanation:

5m-4-m+2

Simplifying

4m - 2

Hope it helps :)❤

Answer: 4m - 2

Steps:
5m - 4 - m + 2
COMBINE LIKE TERMS
4m - 4 + 2
4m - 2

I would appreciate brainliest if this was correct and helpful! :)

what is 37.13 + 21.03 =

Answers

Answer:

58.16

Step-by-step explanation:

is the answer

easy question

Shade 50% of the figure

Answers

Answer:

All you have to so is shade in 2 mini squares and your good

Find the axis of symmetry of the parabola defined by the given quadratic function.
2) f(x) = 8 - (x + 2)2
A) x = -8
B) X = 2
C) X = 8
D) x = -2

Answers

The answer is x = 2 which is b

When you roll a number cube, there are 6 possible _____.

a.) dots
b.) sides
c.) outcomes
b.) none of these

Answers

the correct answer is C, outcomes

Answer:

c. outcomes

Step-by-step explanation:

What should be placed in the box to make the equation true?

Answers

Answer:

2x^4

Step-by-step explanation:

When multiplying variables with exponents multiply the coefficients (the number before the variable) and add the exponents.

SO to solve you have to find a number that when multiplied by 32 equals 64 and a number when added to 8 gives you 12.

2*32=64

8+4=12

So the answer is 2x^4

If this helped please consider giving brainliest.

Consider random samples of size 80 drawn from population A with proportion 0.48 and random samples of size 66 drawn from population B with proportion 0.13 . (a) Find the standard error of the distribution of differences in sample proportions, . Round your answer for the standard error to three decimal places. standard error

Answers

Answer:

Standard error = 0.070

Step-by-step explanation:

Formula for the standard error of the distribution of differences in sample proportions is;

σ_(A - B) = √((p_a^(1 - p_a^)/n_a) + (p_b^(1 - p_b^)/n_b))

We are given;

p_a^ = 0.48

n_a = 80

p_b^ = 0.13

n_b = 66

Thus;

σ_(A - B) = √((0.48(1 - 0.48)/80) + (0.14(1 - 0.13)/66))

σ_(A - B) = √0.00496545455

σ_(A - B) = 0.070

The sum of a number y and 3 is 4.5. Pls help!!!

Answers

Answer:

60

Step-by-step explanation:

Answer: 1.5

Step-by-step explanation:

I did 4.5 subtract 3 and got 1.5= y

Given: −3(a–b) < 0, which is the greater: a or b? Give numerical examples.

Answers

Answer:

a

Step-by-step explanation:

a = 3

b = 2

divide by -3, change the sign:

(a-b) > 0

a always has to be greater than be to be true

Answer: a > b

Start Learning and Start Growing

A baseball player throws a ball from second base to home plate. How far does the player throw the ball? Include a diagram showing how you got your answer. Decide how many decimal points of accuracy are reasonable. Explain your reasoning.

Answers

Answer:

Distance=123.28. Two decimal places is reasonable, because it gives a close approximate to the exact answer, while remaining short and easy to use.

Step-by-step explanation:

Use Pythagorean theorem.

90^2+90^2=c^2

8100+8100=16200

The square root of 16200 is 127.279220614

127.279220614~127.28

Please help!!! I’ll mark you the Brainlyest!!

Answers

Answer: C.

Step-by-step explanation:

i hope this helpes!!

Answer: I believe it's D

Hope this helps love

Jerome earned an 80% on his math test. If there were thirty-five questions on the test, how many questions did he answer correctly? Explain your work

Answers

Answer:

28 questions

Step-by-step explanation:

80% is 80 out of 100, so we can represent it as 80/100.

80 / 100 = y / 35

We need to find the value of y.

To do this we can cross multiply, with a method I like to call the butterfly method.

80         y

100       35

80x35=2800

Therefore, 100 times y equals 2800.

So we divide 2800 by 100.

2800/100=28.

Therefore, y equals 28.

y=28.

Doug took 180 photos during his vacation. He took 2/3 of photos during
the first day of his vacation. Of those photos, ¼ were of landscapes and
0.3 were of people. How many photos were of landscapes and people?

Answers

Answer:

66 pictures

Step-by-step explanation:

180 ÷ 3 = 60      60 x 2 = 120

120 = 2/3. He took 120 pictures on the first day of his vacation.

120 ÷ 4 = 30    30 x 1 = 30

30 = 1/4. He took 30 pictures of landscapes

120 ÷ 10 = 12     12 x 3 = 36

0.3 = 36. He took 36 pictures of people.

36 + 30 = 66 pictures.

He took 66 pictures of landscapes and people.

Hopefully this helps :3 sorry if wrong :( plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

easy 5th grade math please look at photo and answer. Giving brainliest!!

Answers

C is the answer 1 3/8

A triangle has side lengths of 11 cm and 6 cm. Which could be the value of the third side, 21 cm or 14 cm? Is it 14 or 21?

Answers

Answer:

14

Step-by-step explanation:

As long as two sides of a triangle added together are larger than the third side, it is an accurate triangle!

A system of equation is shown below.

2x + 3y = 34

y = 5x

What is the value of x + y ?

Answers

Answer: 29

Step-by-step explanation:

2 + 3 = 5

34 = 5 = 29

A store sold 14 more colored shirts than white shirts. The white shirts cost $9.95 and colors cost $10.50. If a total of $310.60 were sold, how many of each type were sold?

Answers

9514 1404 393

Answer:

8 white shirts22 colored shirts

Step-by-step explanation:

Let c represent the number of colored shirts sold. Then c-14 is the number of white shirts sold. The total revenue is ...

  10.50c +9.95(c -14) = 310.60

  20.45c -139.30 = 310.60 . . . . . . simplify

  20.45c = 449.90 . . . . . . . . . . add 139.30

  c = 22 . . . . . . . . . . . . . . . . . divide by 20.45

  c-14 = 8

22 colored shirts and 8 white shirts were sold.

can u plz tell me hurry

Answers

X=3
Divide by -2
-6/-2 = 3
X=3

Find the surface area, given that the area of each hexagon is 166 square feet.

Answers

Answer:

1148 square feet

Step-by-step explanation:

Find the surface area of the figure

a. 150 square cm
b. 228.4 square cm
c. 78.4 square cm
d. 210 square cm

Answers

Answer:

c

Step-by-step explanation:



The length of a rectangle is 2 units more than the width. The area of the rectangle is
35 units. What is the width, in units, of the rectangle?

Answers

The width of the rectangle is 5 units


The quotient of 6 and a
number (n)

Answers

Answer:

n divided by 6 (n/6)

Step-by-step explanation:

The mathematical expression for 'the quotient of 6 and a number (n)' is, 6/n or (6 ÷ n).

Used the concept of mathematical expression which can be stated that,

A mathematical expression is a group of numerical variables and functions that have been combined using operations like addition, subtraction, multiplication, and division.

Given that,

The algebraic expression is,

''The quotient of 6 and a number (n).''

Now, the mathematical expression for 'the quotient of 6 and a

number (n)' is,

6 ÷ n

= 6 / n

So, the mathmatical notation is 6/n.

To learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ6

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