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Sveta_85 [38]
3 years ago
10

What’s the value of (-1/2) -4

Mathematics
1 answer:
Tatiana [17]3 years ago
8 0

Answer: -4.5

Step-by-step explanation:

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The population of a town increases every year by 2% of the population
OLga [1]

Answer:

Step-by-step explanation:

A = Pe^rt

A = 1.4P

r = 0.02

t = ?

e^0.02t = 1.4

ln both sides

0.02t = ln(1.4)

t = ln(1.4)/0.02

t ~ 16.8 years

5 0
3 years ago
The mean value of 8 numbers is 17. Three of these numbers (9, 11, and 20) are discarded.
Viktor [21]

Answer:

19.2

Step-by-step explanation:

You get the mean of a set of numbers by adding them and dividing the sum by how many numbers there are.  In this case, you don't know what the individual 8 numbers are, but you can find out what they add up to.

Mean = (sum) / 8

17 = (sum) / 8

17 x 8 = sum

136 = sum

Now take out the numbers 9, 11, 20, which reduces the sum by 40.  There are 5 numbers left and they add up to 136 - 40 = 96.

The new mean is 96 / 5 = 19.2

3 0
3 years ago
HELP MARK BRANLIEST AND ALSO POINTS
Taya2010 [7]

Answer:

25 rides

Step-by-step explanation:

has $28.50

15.75 + 0.50r \leq 28.50

Subtract 15.75

0.50r \leq 12.75

r \leq 25.5

you can't have half rides, so 25 rides

4 0
3 years ago
3x - 2(2x - 5) = 2(x + 3) - 8
nataly862011 [7]

Answer:

x = 4

Step-by-step explanation:

Hello!

We can solve for x by expanding the parentheses and isolating x.

<h3>Solve for x</h3>
  • 3x - 2(2x - 5) = 2(x + 3)-8
  • 3x - 4x + 10 = 2x + 6 - 8
  • -x + 10 = 2x - 2
  • 10 = 3x - 2
  • 12 = 3x
  • x = 4

The value of x is 4.

3 0
2 years ago
Change this root into a power.
Nadusha1986 [10]

Answer:

3^2/5

Step-by-step explanation:

7 0
3 years ago
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