1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ruslelena [56]
3 years ago
12

The difference between an observational study and an experiment is that

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

I think it's the last one! In an experiment, one group is studied over a short period of time---

You might be interested in
Zero and negative exponentswrite in simplest for without zero or negative exponents- 17 ⁰
Valentin [98]
-17^0=(-17)^0=1\begin{gathered} (-2)^2\times(-2)^{-5}=(-2)^{2-5} \\ =(-2)^{-3} \\ =\frac{1}{(-2)^3} \\ =\frac{1}{-8} \end{gathered}

Thus, the final answers are 1 and -1/8.

4 0
1 year ago
What congruence rule does the triangle follow? Please write the congruence statement triangle EFH is congruent to ________?
Yuliya22 [10]

We can see here two triangles, and we can notice the following:

1. Since H is the midpoint of the segment EG, we can say that EH and HG are congruent segments.

2. Since these two triangles, namely, EFH and GFH share the same segment (HF), this side is also congruent to these two triangles.

3. Since EH is congruent to HG, and FH is congruent to itself, then EF is congruent to GF.

4. Angle E is congruent to angle G.

Therefore, we can say that:

Since we have that:

a. EF is congruent to GF

b. EH is congruent to GH

c. Angle E is congruent to angle G

We can conclude that the congruence rule, in this case, is SAS (Side-Angle-Side), because<em> if two sides and the included angle are congruent to the corresponding parts of the other triangle, the triangles are congruent.</em>

<em>We also see that the three sides are congruent (and in this case, we can also conclude that the triangles are congruent by the rule SSS (side-side-side).</em>

Likewise, we can also conclude that the triangle EFH is congruent to triangle GFH.

5 0
1 year ago
Subtract. (−9.6x+7)−(7.3x−9) Enter your answer, in simplified form, in the box.Can somebody help me with this equation?
ZanzabumX [31]
-16.9x + 16 is the correct answer. You have to remove the parentheses, collect the like terms, and then simplify.
8 0
3 years ago
Read 2 more answers
Metallic silver has a density of 10.50. what is the mass, in g, of a silver ingot that is 28.0 cm long, 4.90 cm wide, and 3.60 c
frozen [14]

Answer:

5190 g

Step-by-step explanation:

Calculate the volume:

28.0 cm × 4.90 cm × 3.60 cm = 493.92 cm³

Density is mass divided by volume:

D = M / V

Solving for mass:

M = D V

Substituting values:

M = (10.50 g/cm³) (493.92 cm³)

M = 5186.16 g

Rounding to three significant figures, the mass is 5190 g.

3 0
3 years ago
How is 52.86 said in word form
Alborosie
Fifty-two and eighty-sixth hundredths. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these statements are true for two obtuse angles ?
    6·1 answer
  • Which expression means three minus the product of two times a and five?
    14·1 answer
  • Which number is a rational number???
    12·1 answer
  • HELP PLEASEEE ASAAAAPPPPPPPPPPPP I WILL GIVE BRAINLY TO THE FIRST ONE!!!!!!!!
    9·1 answer
  • Compare and contrast Converse and Inverse. Explain.
    9·1 answer
  • Solve by factorisation<br> 2x2 + 3x - 20 = 0
    8·1 answer
  • Does anyone know the answer
    12·2 answers
  • Evaluate the piecewise function at the given values of the independent variable.
    7·2 answers
  • 9.20 Divide it by 100 and write the product in expanded form​
    8·1 answer
  • at a museum, a model of a rocket is 3 feet high. the model has a scale of 1 foot to 121 feet. the museum manager will create a n
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!