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zubka84 [21]
3 years ago
15

Find the value of X and y☺ -3/2y = -136X2Y = 4by elimination​

Mathematics
1 answer:
alina1380 [7]3 years ago
4 0
X equals 13/3 and Y equals 1/13 sorry if I am wrong
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What are the zeros of the function f(x)=x^2-2x-15?
valkas [14]
To find the zeros of this function, we must first set the entire function equal to 0

f(x) = x² - 2x - 15 = 0

Since this is a quadratic function, we must use the quadratic formula, which is:

\frac{-b +/-  \sqrt{b^{2} - 4(a)(c) } }{2a}

Let's assign a, b, and c using our first function
x² means a = 1 (because it could be written as 1x²)
-2x means b = -2
-15 means c = -15

Now let's plug those in:

\frac{-(-2) +/- \sqrt{(-2)^{2} - 4(1)(-15) } }{2(1)}

which simplifies to:

\frac{2 +/- \sqrt{(4 + 60} }{2}

Simplified further:

\frac{2 +/- \sqrt{(64} }{2}
\frac{2 +/- 8 }{2}
And divide it by the 2 on the bottom gives us:

2 +/- 4

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2-4 = -2

So the zeros of this function are -2 and 6
6 0
3 years ago
Read 2 more answers
May someone please help me with this :)
CaHeK987 [17]
1. The perimeter = 3.7 + 3.7 + 2.8 + 2.8
= 13
The area = 3.7 * 2.8 = 10.36

2. Perimeter = 11.2
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6 0
3 years ago
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Lim (x+1) (3x^2-9)<br> X2
mafiozo [28]

Answer:

\lim_{x \to 2} (x+1)(3x^2-9) = 9

Step-by-step explanation:

Step 1: Write out limit

\lim_{x \to 2} (x+1)(3x^2-9)

Step 2: Evaluate

(2 + 1)(3(2)² - 9)

3(3(4) - 9)

3(12 - 9)

3(3)

9

5 0
3 years ago
Jim kept record of rainfall for seven weeks the data is shown in the graph find the absolute mean deviation of the data (round a
kkurt [141]

Answer:the correct answer should be d.2.07

Step-by-step explanation:

5 0
3 years ago
******PLEASE HELP!!******
expeople1 [14]

Answer:

9^{4}

Step-by-step explanation:

9^-5 = 9^4  x  9^-9

4-9 = -5

7 0
3 years ago
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