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Amiraneli [1.4K]
3 years ago
12

Given the function f defined by the formula f(x)=x^2-4 find the following: (a) f(3) (b) f(-4) (c) f(0) (d) (-2)

Mathematics
2 answers:
Savatey [412]3 years ago
4 0

x yerine parantez içindek,ileri yaz çıkar cevap

lianna [129]3 years ago
4 0

f(x) = x² - 4

f(3) = 3² - 4 = 5

f(-4) = (-4)² - 4 = 12

f(0) = (0)² - 4 = -4

f(-2) = (-2)² - 4 = 0

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How would I solve the rest of this?
GalinKa [24]

it would be y = -12/5. Hes the work. hope this helps!





5 0
3 years ago
2x - 5y=-15<br> can someone walk me through this?
HACTEHA [7]
The equation given in the question has two unknown variables in the form of "x" and "y". The exact value of "x" and "y" cannot be determined as two equations are needed to get to the exact values of "x" and "y". This equation can definitely be used to show the way for determining the values of "x" in terms of "y"and the value of "y" in terms of "x". Now let us check the equation given.
2x - 5y = - 15
2x = 5y - 15
2x = 5(y - 3)
x = [5(y - 3)]/2
Similarly the way the value of y can be determined in terms of "x" can also be shown.
2x - 5y = - 15
-5y = - 2x - 15
-5y = -(2x + 15)
5y = 2x + 15
y = (2x +15)/5
   = (2x/5) + (15/5)
   = (2x/5) + 3
So the final value of x is [5(y -3)]/2 and the value of y is (2x/5) + 3.
3 0
3 years ago
Korey’s comic book store has been up and running for 4 years. Korey feels that his store has been successful and is considering
Inessa05 [86]
Year      Net Profit
1            <span>$14,250.00
2            $15,390.00
3            $16,621.20
4            $17,950.90</span>2

We need to get the increase of the net profit of the current year from the previous year.

Percentage increase = (Current year - Previous Year)/ Previous Year    * 100%

Year 2:  (15,390 - 14, 250) / 14,250   * 100% = 0.08 * 100% = 8%
Year 3: (16,621.20 - 15,390) / 15,390 * 100% = 0.08 * 100% = 8%
Year 4: (17,950.90 - 16,621.20) / 16,621.20 * 100% = 0.08 * 100% = 8%

Every year the net income increases by 8%. So, the net income in Year 5 will be:

17,950.90 x 1.08 = 19,386.97  Choice D.

8 0
3 years ago
Read 2 more answers
Ill give you brainiest if your right !!!!
valentina_108 [34]

Answer:

12m - 4

☆ putting the value of m in the above formula

12 × 4 - 4

= 48 - 4

= 44

6r - 4

☆ Putting the value of r in the above formula

6 × 6 - 4

= 36 - 4

= 32

6 0
3 years ago
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One evening brody and tessa both had a hot dog. Each hot dog was 2.50. How much was the total
bezimeni [28]
$2.50 + $2.50= $5  Two people so two hot dogs            
3 0
3 years ago
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