Help nott sure if im right
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Related Questions
You and two friends visit a pizza shop. There are 13 toppings. 8 toppings are meat and the rest are vegetable. each of you order a different topping (No Repeats) at random. what is the probability that your group orders only meat toppings
Calculate the average of 200 and 300
What is the solution of the system? Use substitution.4x – y = 5 3x – 7 = 2 A) (3, 7) B) (7, -7) C) (-3, 7) D) (3/4, 2/5
What are you required to do when you buy in bulk to save money? a. purchase a minimum number of items b. purchase a large quantity of an item c. commit to buy more in the future
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2500 times 4%=2500 times 0.04=100
100 times how many years=200
divide by 100 both sides
how many years=2
2 years
b.square
c.rectangle
d.pentagon
5. What is the cross section formed by a plane that intersects three faces of a cube?
a.triangle
b.square
c.rectangle
d.pentagon
Answers
1. Answer;
- Triangle
Explanation;
The cross section formed by a plane that contains a vertical line of symmetry for a tetrahedron is a Triangle.
A tetrahedron also a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.
2. Answers
- Triangle
Explanation;
The cross section formed by a plane that intersects three faces of a cube is a Triangle. A cross section is the shape we get when cutting straight through an object. The shape of the cross-section of a solid depends upon the orientation of the cutting plane to the solid.
A ) triangle.
2. The cross section formed by a plane that intersects three faces of a cube is:
A ) triangle.
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Answer:
45 kilogram = 99.208 pound.
Step-by-step explanation:
Given : If an item weighs 45 kilograms,
To find : what is its weight in pounds.
Solution : We have given that
Weighs = 45 kilograms.
1 kilogram = 2.20462 pound .
45 kilogram = 2.20462 * 45.
45 kilogram = 99.208 pound .
Therefore, 45 kilogram = 99.208 pound.
The weight of 45 kg is equal to 99.21 pounds.
To convert 45 kilograms to pounds,
We have to use a conversion factor.
The conversion factor is 2.20462 pounds per kilogram.
Therefore,
To find the weight of an item in pounds,
We have to multiply its weight in kilograms by 2.20462.
So,
Multiplying 45 kilograms by 2.20462 pounds per kilogram
We get a weight of approximately 99.21 pounds.
It's important to note that kilograms and pounds are both units of mass, but they are used in different parts of the world.
Kilograms are the standard unit of mass in the metric system,
while pounds are commonly used in the United States and the United Kingdom.
Hence,
An item that weighs 45 kilograms has a weight of approximately 99.21 pounds.
To learn more about the measurement unit visit:
#SPJ6
(-9, -8)
(-1, -8)
(-5, -12)
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(-5,-12)
the answer is x=27
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Simple...plug n chug..
3x-4(4)=65
3x-16=65
Now, isolate the variable, x....
3x-16=65
+16 +16
3x=81
Now, divide,
x=27.
Thus, your answer.
Answers
Answer:
The first reactant takes approximately 147 seconds to reach half its initial concentration, while the second reactant takes approximately 214.5 seconds for the same reduction, based on their half-lives and initial concentrations.
Step-by-step explanation:
The rate constant (k) for a first-order reaction can be calculated using the formula:
k = (0.693) / t_half
For the first set of data:
k₁ = (0.693) / 147 s ≈ 0.00472 s⁻¹
For the second set of data:
k₂ = (0.693) / 215 s ≈ 0.00322 s⁻¹
Now, you can use these rate constants to calculate the time it takes for each reactant to reach a certain concentration. For example, if you want to find the time it takes for the first reactant (initial concentration = 0.294 M) to reduce to 0.147 M (half its initial concentration), you can use the following equation for a first-order reaction:
ln(C_t / C₀) = -kt
Where:
C_t = concentration at time t
C₀ = initial concentration
k = rate constant
t = time
For the first reactant:
ln(0.147 / 0.294) = -0.00472t
Solving for t:
t ≈ 147 seconds
For the second reactant (initial concentration = 0.201 M) to reduce to 0.1005 M (half its initial concentration):
ln(0.1005 / 0.201) = -0.00322t
Solving for t:
t ≈ 214.5 seconds
So, it takes approximately 147 seconds for the first reactant to reach half its initial concentration, and approximately 214.5 seconds for the second reactant to do the same, based on their respective half-lives and initial concentrations.