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tia_tia [17]
3 years ago
10

Y = 16-x^2Find the value of k ​

Mathematics
1 answer:
wlad13 [49]3 years ago
5 0

Answer:

k = - 4

Step-by-step explanation:

Given

y = 16 - x²

The point (k, 0 ) is a zero. To find the zero let y = 0, that is

16 - x² = 0 ( add x² to both sides )

16 = x² ( take the square root of both sides )

x = ± \sqrt{16} = ± 4

The zeros are x = - 4 and x = 4

Since (k, 0 ) is to the left of the origin, then k = - 4

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The cost
VARVARA [1.3K]

The cost of the phone contract will be mathematically given as

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This is further explained below.

<h3>What is the formula?</h3>

Generally, According to the information provided, the monthly cost of the fixed line rental is £45, and the price of calls made is £13, thus the monthly cost will be represented by the following:

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1 year ago
Question 1
slamgirl [31]

Answer:

i) $500 at 5% simple interest for two years. Interest = 550 - 500 = $50

ii) $500 at 3% compounded monthly for 2 years.

    Interest = 530.88 - 500 = $30.88

Step-by-step explanation:

i) $500 at 5% simple interest for two years.

   Initial amount, P = $ 500

   Rate of interest, r = 0.05

   Time in years, t = 2

  Therefore Final amount A = P(1 + rt) = 500(1 + (0.05 \times 2) ) = $550

   Therefore Interest = 550 - 500 = $50

ii) $500 at 3% compounded monthly for 2 years

    Initial or Principal Amount, P  = $500

    Rate of interest, r =0.03

    number of conversions, m = 12

     Time in years, t = 3

  Therefore final amount,  A  = P(1 + \frac{r}{m}) ^{mt}  = 500( 1 + \frac{0.03}{12} )^{(12\times2)} = 500( 1 + \frac{0.03}{12} )^{24} = $530.88

Therefore Interest = 530.88 - 500 = $30.88

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M &lt; JH I= (2x+7) and m
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carter has 2 blue pens in his back pack . if this is 25 percent of the total number of pens how many pens does he have
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Answer:


Step-by-step explanation:

can u be more specific


3 0
3 years ago
Read 2 more answers
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