Answer:
2 and 3
Step-by-step explanation:
The square root of 8 is 2.82842712475
Answer:
- A. A neutrally-charged carbon atom contains 6 positively-charged protons and 6 negatively-charged electrons. CORRECT
- B. The average temperature in Cleveland, Ohio in December is 38∘F. On a particularly cold day last year, the temperature change was −38∘F from the previous day. CORRECT
- C. A model rocket flies 50 meters into the air. It falls 50 meters before it hits the ground. CORRECT
- D. The price of gold is $3.00 per ounce less than it was yesterday. WRONG
Explanation:
The <em>additive inverse property</em> is the property that states that the addtiion of a number with its negative is zero: b + (-b) = 0.
Let's see every choice:
- A. A neutrally-charged carbon atom contains 6 positively-charged protons and 6 negatively-charged electrons. CORRECT
6 positively'charged protons ⇒ charge +6
6 negatively charged electrons ⇒ charge -6
Total charge = +6 + (-6) = 0
The result is that the atom has a zero net charge.
- B. The average temperature in Cleveland, Ohio in December is 38°F. On a particularly cold day last year, the temperature change was −38°F from the previous day. CORRECT
Temperature of a day is 38° F
Change of temperature was - 38° F
Resulting temperature: 38° F + ( -38° F) = 0
- C. A model rocket flies 50 meters into the air. It falls 50 meters before it hits the ground. CORRECT
50 meters upward ⇒ +50 m
50 meters downward ⇒ -50 m
Final altitude = +50 m + (-50 m) = 0
- D. The price of gold is $3.00 per ounce less than it was yesterday. WRONG
Price of yesterday : x
Price of today: x - 3.00
This is not the application of the additive inverse property.
H= Alice
Y= Peter
H-6=Y/2
10-6= 4
4*2=8
Peter=8
Alice=10
Answer: X=4 and y=4
Step-by-step explanation:
Answer:
Step-by-step explanation:
<h2>
This problem bothers on the mensuration of solid shapes, cone an cylinder.</h2><h2>
</h2>
from the formula of cylinder and cone we can see that the volume of a cone is 3 times smaller than that of a cylinder
....................cylinder
.................cone
assuming all units in (cm)
Given data.
Volume of cylinder =
Diameter d=
Radius r =
Height h= ??
we know that the expression for the volume of a cylinder is
we can substitute our given data to find the height h
divide both side by 3.142 we have
We can now use this height and radius to find the equivalent volume of a cone.
the expression for the volume of a cone is
substituting our data into the expression we have