Answer: a = 15
Step-by-step explanation:
15 - 9 = 6
The ages of the crew, Marty and Blakeley are 32 years, 48 years and 24 years respectively.
<h3>Algebra</h3>
- Crew's age = x
- Marty's age = 1.5x
- Blakely's age = 0.75x
Total = crew's age + Marty's age + blakely's age
104 = x + 1.5x + 0.75x
104 = 3.25x
x = 104 ÷ 3.25
x = 32 years
Therefore,
Crew's age = x
= 32 years
Marty's age = 1.5x
= 1.5(32)
= 48 years
Blakely's age = 0.75x
= 0.75(32)
= 24 years
Learn more about algebra:
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We have by the intermediate value theorem that if a continuous function takes values both above and below zero at 2 points, there is a zero of the function in-between. We have that polynomials are continues. Let's calculate f(-6) and f(-5). f(-6)=-36 while f(-5)=-1. Thus, we cannot conclude that there is a root between them.
F(-2)=8, f(-1)=-1, so there is a flip; a zero must exist between them.
F(1)=-1, f(2)=20, so again there is a change of signs.
f(-5)=-1, f(-4)=14 so there is a root still.
We have that the only choice that does not have a root between the integers is choice a.
Answer:
V≈6795.2in³
Step-by-step explanation:
I think
