Answer:
uuhhhhh
Step-by-step explanation:
hmmmm

Answer: 15 miles
<u>Step-by-step explanation:</u>
2/3 of the way is 30 miles
Let x represent the total distance to grandmother's house, then

Since the total distance is 45 and they have already driven 30 miles, there is 15 miles to go
Answer:
X = 65°
Step-by-step explanation:
You're trying to find a the missing measure for a right angle.
A right angle equals 90°.
90-25=65
65° would equal x.
Hope this helps!!
You can't simplify this equation anymore because they have no like terms.
Answer:
Standard deviation, ∂ = 64.21 days
Mean = 429.21 days
Step-by-step explanation:
Given:
Mean lifespan = 71.45 years
Standard deviation = 12.35 years
Standard deviation, ∂ = x - µ / N
Where,
∂ = standard deviation
µ = mean life span
x = size of year
x = 70 years
Standard deviation, ∂ = x - µ / N
= 70 - (71.45 / 12.35)
= 70 - 5.79
= 64.21
Standard deviation, ∂ = 64.21 days
Mean = ∑x + standard deviation
∑x = 365
Mean = ∑x + standard deviation
= 365 + 64.21
= 429.21 days
Mean = 429.21 days