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katovenus [111]
3 years ago
6

HELP ME PLZ Between 9 P.M. and 6:20 A.M.​, the water level in a swimming pool decreased by 7/12 . Assuming that the water level

decreased at a constant​ rate, how much did the water level drop each​ hour? The water level decreased by nothing in. each hour.
Mathematics
1 answer:
ivann1987 [24]3 years ago
3 0

Answer:

0.06245

Step-by-step explanation:

Decrease 7/12=0.583

from 9 p.m to 6:20 am is 9:20= (9+20/60) = 9.33 hours

0.583/9.33 = 0.06248

round the 0.06248 to 0.06245

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Which line of symmetry for the parabola (x-1)^2= 4(y-1)^?
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4 0
3 years ago
Complete the factorization of 3x ^ 2 - 10x + 8 3x^ 2 -10x+8=(x- Box x-4)
aniked [119]

Answer:

3x^2-10x+8=(x-x_1)(x-x_2)=(x-2)(x-\frac{4}{3})

Step-by-step explanation:

The general form of a quadratic polynomial is given by:

ax^2+bx+c    (1)

You have the following polynomial:

3x^2-10x+8    (2)

In order to complete the factorization you can use the quadratic formula, to obtain the roost of the polynomial. The quadratic formula is given by:

x_{1,2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}    (3)

By comparing the equation (1) with the equation (2) you obtain:

a = 3

b = -10

c = 8

Then, you replace these values in the equation (3):

x_{1,2}=\frac{-(-10)\pm \sqrt{(-10)^2-4(3)(8)}}{2(3)}\\\\x_{1,2}=\frac{10\pm2}{6}\\\\x_1=2\\\\x_2=\frac{4}{3}

Then, the factorization of the polynomial is:

3x^2-10x+8=(x-x_1)(x-x_2)=(x-2)(x-\frac{4}{3})

5 0
3 years ago
Anyone able to help me on these problems?
Zina [86]
Where is the problem at
3 0
3 years ago
Read 2 more answers
7: -5 = 0.25(4 + 20r) - 8r​
Nonamiya [84]
The answer is r = 2. hope this helps :)

4 0
3 years ago
4 times (6-4)times 3+(7+3)
Hunter-Best [27]

Answer:

104

Step-by-step explanation:

6 0
3 years ago
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