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iris [78.8K]
3 years ago
7

Does 27.93 equal to this 20.7+0.9+0.03

Mathematics
1 answer:
nexus9112 [7]3 years ago
5 0
No,27.93 equals <span>20.00+7.00+0.9+0.03</span>
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Which of the following expressions is equivalent to 2/ 5 ÷ 7 /8 ?
Sonja [21]
You haven't provided expressions, so I can work out the problem for you. When we divide fractions, remember always "keep, switch, flip!" That's what we're gonna do here. We keep the 2/5, switch the sign to multiplication, and flip the 7/8 to 8/7. Therefore, we have 2/5*8/7. That gives us 16/35. Hope this helps!
7 0
3 years ago
The volume of a cone, V, is represented by , where r is the cone’s radius and h its height.
Arlecino [84]
So the height will equal 95.50 inches.

So if you double the height the volume is 1800cm3 and that is double the original volume 

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8 0
2 years ago
F(x) = 15,000(.84) shows the value of a car each year. Describe the following:
makvit [3.9K]

Answers:

  • a) 15000 represents the starting amount
  • b) The decay rate is 16%, which means the car loses 16% of its value each year.
  • c) x is the number of years
  • d) f(x) is the value of the car after x years have gone by

========================================================

Explanation:

We have the function f(x) = 15000(0.84)^x. If we plug in x = 0, then we get,

f(x) = 15000(0.84)^x

f(0) = 15000(0.84)^0

f(0) = 15000(1)

f(0) = 15000

In the third step, I used the idea that any nonzero value to the power of 0 is always 1. The rule is x^0 = 1 for any nonzero x.

So that's how we get the initial value of the car. The car started off at $15,000.

-------------

The growth or decay rate depends entirely on the base of the exponential, which is 0.84; compare it to 1+r and we see that 1+r = 0.84 solves to r = -0.16 which converts to -16%. The negative indicates the value is going down each year. So we have 16% decay or the value is going down 16% per year.

------------

The value of x is the number of years. In the first section, x = 0 represented year 0 or the starting year. If x = 1, then one full year has passed by. For x = 2, we have two full years pass by, and so on.

------------

The value of f(x) is the value of the car after x years have gone by. We found that f(x) = 15000 when x = 0. In other words, at the start the car is worth $15,000. Plugging in other x values leads to other f(x) values. For example, if x = 2, then you should find that f(x) = 10584. This means the car is worth $10,584 after two years.

7 0
2 years ago
PLEASE HELP
lutik1710 [3]
Neagative six plus r is less than or equal to negative three point five
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2 years ago
F(2/9) if f(x)=3x+1/3
Harman [31]

Answer:

1

Step-by-step explanation:

4 0
3 years ago
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