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BaLLatris [955]
3 years ago
7

Find the percent. explain your method 30%of 50

Mathematics
2 answers:
AleksandrR [38]3 years ago
6 0
50/100=0.5
0.5*30=15

Or

50*0.30=15
grandymaker [24]3 years ago
4 0
Multiply .30 and 50 ... which is 15
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Form the quadratic equation whose one root is 2 + 2^(1/2)​
Oksanka [162]

9514 1404 393

Answer:

  x^2 -4x +2 = 0

Step-by-step explanation:

The other root is the conjugate of the given one, so is 2-√2. The quadratic equation in factored form is then ...

  (x -2-√2)(x -2+√2) = 0

Expanding this, we get ...

  (x -2)^2 -(√2)^2 = 0

  x^2 -4x +4 -2 = 0

  x^2 -4x +2 = 0 . . . . the equation you're looking for

4 0
3 years ago
A ball is thrown with an initial velocity of 32 ft/s from a height of 4.5 feet. It’s height as a function of time is given by th
Lana71 [14]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
a pound of bananas costs $0.59 and a pound of cherries costs $3.98. What are the combined cost of 2.4 pounds of bananas and 1.8
soldier1979 [14.2K]
$8.58 -I hope this helped-
4 0
2 years ago
The balance in Al's account is $ 32.60 . The balance in Dee's account is 3 4 the balance in Al's account. The balance in Zac's a
shtirl [24]

Answer:

Balance in Zac's account = - $24.63

Step-by-step explanation:

Given:

Balance in Al's account = $32.60

Balance in Dee's account = 3/4 the balance in Al's account

Balance in Zac's account = balance in Dee's account - $49.08

Find:

Balance in Zac's account

Computation:

Balance in Dee's account = 3/4 the balance in Al's account

Balance in Dee's account = [3/4][32.60]

Balance in Dee's account = $24.45

Balance in Zac's account = balance in Dee's account - $49.08

Balance in Zac's account = $24.45 - $49.08

Balance in Zac's account = - $24.63

7 0
3 years ago
What is the length to the nearest tenth of the altitude of an equilateral triangle with a perimeter of 30 inches
MrRa [10]
Each side of an equilateral triangle = perimeter / 3.
Each side = 10 inches.
The altitude divides the triangle into two 30 60 90 triangles.  The hypotenuse is 10 inches and the short side is 5 inches.
altitude^2 = 10^2 - 5^2
altitude^2 = 100 - 25
altitude^2 = 75
altitude = <span> <span> <span> 8.6602540378 </span> </span> </span>

3 0
3 years ago
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