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vodka [1.7K]
3 years ago
12

Help meeee please in quadratic equation

Mathematics
2 answers:
Leona [35]3 years ago
8 0
7x² + 31x + 12 = 0

x = -b ± √(b² - 4ac)
               2a
x = -(31) ± √((31)² - 4(7)(12))
                      2(7)
x = -31 ± √(961 - 4(84))
                   14
x = -31 ± √(961 - 336)
                  14
x = -31 ± √(625)
              14
x = -31 ± 25
           14
x = -31 + 25    or    x = -31 - 25
           14                          14
x = -6    or    x = -56
      14                 14
x = ⁻³/₇    or    x = -4
Natasha2012 [34]3 years ago
3 0
What part are you wanting to know about? The written of number 9? 
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Katrina buys the two vases shown. How do the volumes of the vases compare ?
White raven [17]
They are the same one is just curved.
Hope this helped!!
8 0
3 years ago
Ian’s monthly allowance is $21. In January he starts saving for a birthday gift in June. Each month he saves 2/3 of his allowanc
mixas84 [53]

No 2/3 of $21 is $14 so 6x14 is $84 less than $110

8 0
3 years ago
6x^2y^3/3xy<br><br> 6x squared times y cubed <br> divided by 3xy <br> simplify
Lera25 [3.4K]

Answer:

2xy^2


Step-by-step explanation:

The question is:

\frac{6x^{2}y^3}{3xy}


<em>"6" and "3" cancels out as well as the "x"s and "y"s. Shown below</em>:

\frac{6x^{2}y^3}{3xy}\\=2xy^2

4 0
3 years ago
What is the future amount of 12,000 invested for 5 years at 14% compounded monthly?
Triss [41]

The total amount accrued, principal plus interest, with compound interest on a principal of $12,000.00 at a rate of 14% per year compounded 12 times per year over 5 years is $24,067.32.The amount of the initial loan, or principal, is multiplied by one plus the annual interest rate raised to the number of compound periods minus one to determine compound interest.

<h3 /><h3>what is compound interest?</h3>

To begin, change R from a percentage to a decimal, using the formula:

r = R/100 r = 14/100

r = 0.14 rate per year;

Next, find A by solving

A = P(1 + r/n)nt A = 12,000.00(1 + 0.14/12)(12). (5)

A = 12,000.00(1 + 0.011666666666667)(60) (60)

A = $24,067.32

Summary: The total amount accrued, principal plus interest, with compound interest on a principal of $12,000.00 at a rate of 14% per year compounded 12 times per year over 5 years is $24,067.32.

The amount of the initial loan, or principal, is multiplied by one plus the annual interest rate raised to the number of compound periods minus one to determine compound interest. You will then be left with the loan balance plus compound interest.

To learn more about interest refer to:

brainly.com/question/2294792

#SPJ13

8 0
1 year ago
F(x) = -1/2x^2 + 3/2x - 2 I need to find the zeros​
Pachacha [2.7K]

Answer:

{-1, 4}

Step-by-step explanation:

In the given f(x) = -1/2x^2 + 3/2x - 2

set f(x) = 0 and then multiply all the numeric terms by -2 to remove the fractions:

f(x) = -1/2x^2 + 3/2x - 2 = 0  =>  1x^2 - 3x - 4 = 0  

This factors into (x - 4)(x + 1) = 0, whose roots are {-1, 4}.  These are the zeros.

4 0
3 years ago
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