Commutatiee property means basically that 9+8 is the exact same as 8+9 — the order doesnt matter. Either way, we are adding the values of the numbers in the problem. Im not sure what they mean by number sentence (English isnt my first language) but I hope this helps.
Answer:
The answer to your question is 13.2
Step-by-step explanation:
To figure out the answer to this equation you have to multiply by pi or 3.14
<u>We are given: </u>
Density of glass in g/cm³ = 2.5
<u>Finding the density in kg/m³: </u>
In converting 2.5 g/cm³ to kg/m³, we will first convert the g to kg
<u>Converting the g to kg:</u>
2.5 g/cm³ * 1
Since 1kg = 1000g, <em>1kg/1000g = 1</em>
2.5 g/cm³ * 1kg / 1000g
the g in the numerator and the denominator will cancel out and we will get:
2.5 kg / 1000 cm³
<u>Converting the cm³ to m³:</u>
We know that 1 m³ = 10⁶ cm³
So, 10⁶ cm³ / 1 m³ = 1
Multiplying the density by 1
2.5 kg / 10³ cm³ * 1
2.5 kg / 10³ cm³ * 10⁶ cm³ / 1 m³
the cm³ in the numerator and the denominator will cancel out
2.5 * 10⁶ kg / 10³ m³
2.5 * 10³ * 10³ kg / 10³ m³
2.5 * 10³ kg / m³
2500 kg/m³
1. Triangle with angle measures of fifteen degrees, one hundred fifty-five degrees, and ten degrees ⇒ obtuse triangle
2. Triangle with angle measures of fifty-five degrees, fifty-five degrees, and seventy degrees ⇒ acute triangle
3. Triangle with angle measures of thirty-five degrees, one hundred ten degrees, and thirty-five degrees ⇒ obtuse triangle
4. Triangle with angle measures of sixty degrees, sixty-five degrees, and fifty-five degrees ⇒ acute triangle
Answer:
Expectation number of books a customer will purchase = 1.3
Step-by-step explanation:
x : 0 1 2
p(x) :0.2, 0.3, and 0.5
Expectation
E(X) = ∑x P(x)
= 0 X 0.2 +1 X 0.3+ 2 X 0.5
= 1.3
Expectation E(X) = 1.3
Expectation number of books a customer will purchase = 1.3