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shutvik [7]
3 years ago
11

Given f(x)=x^2-4x+5, what's the value when f(2)

Mathematics
1 answer:
Reil [10]3 years ago
7 0

If you were to replace the x's with 2, your equation would turn into:

(2)^2-4(2)+5

From there, you'd just solve.

4-8+5=1

Your answer would be 1.

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Sv is an angle bisector of rst. If mrsv = (3x+5) and mrst = (8x-14), find x.
MA_775_DIABLO [31]

m∠RSV = 3x + 5, m∠RST = 8x - 14       <em>given</em>

m∠RSV ≅ m∠VST                                 <em>definition of segment bisector</em>

m∠RSV + m∠VST = m∠RST                 <em>angle addition postulate</em>

(3x + 5) + (3x + 5) = (8x - 14)                  <em>substitution</em>    

6x + 10 = 8x - 14                                    <em>simplify (added like terms)</em>

       10 = 2x - 14                                    <em>subtraction property of equality</em>

      24 = 2x                                           <em>addition property of equality</em>

      12 = x                                              <em>division property of equality</em>

Answer: x = 12

5 0
4 years ago
Your DVD membership costs $16 per month for 10 DVD rentals. Each additional DVD rental is $2. a. Write an equation in two variab
Anarel [89]

Answer:

a. C(x) = $16, if 0 ≤ x ≤ 10

   C(x) = 2x - 4 if x > 10

b. Independent: Number of DVD rentals

   Dependent: Monthly cost of rentals

c. $26

Step-by-step explanation:

a. The cost (C) of renting 'x' DVDs is given by:

If 10 ≤ x ≤ 10

C(x) = $16

If  x > 10

C(x) = 16 + 2(x-10)

C(x) = 2x - 4

b. Since the cost depends on the number of DVD rentals, cost is the dependent variable and number of DVD rentals is the independent variable.

c. For x = 15:

C(15) = 2*15 - 4

C(15) = $26

It costs $26 to tent 15 DVDs in one month

5 0
3 years ago
What is pi over 12 to the 10 power times 6 over 5.32018?
erica [24]

Answer: 3.9737436e-13

Step-by-step explanation: pi/12= 0.26179938779 to the tenth power = 5.0738475e-11 x 6/5.32018=  3.9737436e-13.

3 0
3 years ago
Select the correct answer.
aleksandrvk [35]
Yo what is the answer??
8 0
3 years ago
Seven hundred fifteen divided by eight
ExtremeBDS [4]

Answer:

89.375 or 89.4 if rounded

Step-by-step explanation:

715 divided by 8 = 89.375

check this by doing 89.375 x 8

hope this helps

7 0
4 years ago
Read 2 more answers
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