Answer:
It is False!!
NO MATTER WHICH IS THE QUADRILATERAL IT CANT BE DONE.
PLEASE MARK AS BRAINLIEST IF I AM CORRECT
Answer:
Return trip travel time: 7h
Step-by-step explanation:
Let d be the distance.
Index 1 refers to initial trip, index 2 refers to the return trip.
v1=70mi/h
v2=40mi/h
t2=t1+3h, or t1=t2-3h (travel times)
d=v1×t1=v2×t2
v1×(t2-3)=v2×t2
v1 t2 -3 v1=v2 t2
v1 t2 - v2 t2=3 v1
t2(v1-v2)=3v1
t2=3v1/(v1-v2)
Or
t2=3×70/(70-40)=3×70/30=7h
The algebraic representation of the expression ten minus one-third of number is 4 is 10 - 1/3x = 4
<h3>Algebra</h3>
ten minus one-third of number is 4
let
10 - 1/3x = 4
10 - 4 = 1/3x
6 = 1/3x
x = 6 ÷ 1/3
x = 6 × 3/1
x = 18
Therefore, the algebraic representation of the expression ten minus one-third of number is 4 is 10 - 1/3x = 4
Learn more about algebra:
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Answer:
0.789
Step-by-step explanation:
First, find the expected value (the mean).
μ = ∑ x P(x)
μ = (0) (0.359) + (1) (0.436) + (2) (0.180) + (3) (0.025)
μ = 0.871
Next, find the variance.
σ² = ∑(x − μ)² P(x)
σ² = (0 − 0.871)² (0.359) + (1 − 0.871)² (0.436) + (2 − 0.871)² (0.180) + (3 − 0.871)² (0.025)
σ² = 0.622
Finally, find the standard deviation:
σ = √0.622
σ = 0.789
Answer:
-256
Step-by-step explanation:
