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gladu [14]
3 years ago
6

Time for reading solving inequalities with decimals

Mathematics
1 answer:
PolarNik [594]3 years ago
6 0
<span><span>The velocity of an object fired directly upward is given by <span>V = 80 – 32t</span><span>, where </span>t<span> is in seconds. 

When will the velocity be between </span>32<span>and </span>64<span> feet per second?</span></span><span>I will set up the compound inequality, and then solve for </span>t:</span><span><span>    32 < 80 – 32t < 64</span> <span>
    32 – 80 < 80 – 80 – 32t < 64 – 80</span> <span>
    –48 < –32t < –16</span><span>    –48 /<span> –32</span></span><span>  >  </span><span><span>–32t</span> /<span> –32</span>  </span><span>>  </span><span>–16 /<span> –32</span></span><span>    1.5 > t > 0.5</span></span>
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What is the solution of the equation? (√2x-1) + 2=x
Gwar [14]

Answer:

x = 5

Step-by-step explanation:

√(2x − 1) + 2 = x

√(2x − 1) = x − 2

2x − 1 = (x − 2)²

2x − 1 = x² − 4x + 4

0 = x² − 6x + 5

0 = (x − 1) (x − 5)

x = 1 or 5

Check for extraneous solutions.

√(2(1) − 1) + 2 = 1

√(1) + 2 = 1

3 = 1

No solution

√(2(5) − 1) + 2 = 5

√(9) + 2 = 5

5 = 5

x = 5

7 0
3 years ago
Point G is the centroid of triangle abc use the information to find the value of x.
ioda
<span>
2. FG= x +8 and AF = 9x - 6</span>
5 0
3 years ago
0825 ®
balu736 [363]

Answer:

if n(a)=4

if n(b)=3

then n(c)= 2

5 0
3 years ago
A sum of money is deposited at a bank at a rate of 12½ annum simple interest. In how many years would the deposited money be dou
Dmitrij [34]

Answer:

It would take 10 years for the given sum of money be doubled at the given simple interest rate.

Step-by-step explanation:

A 10% interest would be added to the the principal amount after each year. So  the interest would reach 100% i.e. equal to the principal amount in 10 years.

7 0
3 years ago
Vacation Property Rentals purchased 50 television sets for their rental units at a cost of $250 per television. The televisions
Alex787 [66]
Under A straight line basis which is a method of computing depreciation and amortization by dividing the difference between an asset's cost and its expected salvage value by the number of years it is expected to be used. Also known as straight line depreciation or straight line amortization, this is the simplest depreciation method. But instead of that find The rate of depreciation
100/5 years=20% depreciation rate per year
Total cost 250×50=12,500
Salvage value 40×50=2,000
Subtract the salvage value from the total cost of televisions
12,500−2,000=10,500
In the first year the depreciation is
10,500×0.2=2,100
Book value
12,500−2,100=10,400
In the second year the depreciation is
10,500×0.2=2,100
Book value
10,400−2,100=8,300
In the third year the depreciation is
10500×0.2=2100
Book value
8300-2100=6200

the book value for all of the televisions at the end of the third year is 6200
8 0
3 years ago
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