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docker41 [41]
3 years ago
15

Evaluate the function f(x) = 2x2 - 6x + 3 for x = -1.

Mathematics
1 answer:
nadya68 [22]3 years ago
4 0

Answer:

f(-1) = 11

Step-by-step explanation:

f(x) = 2x^2 - 6x + 3

Let x = -1

f(-1) = 2(-1)^2 -6(-1) +3

      =2*1 +6 +3

       =2+6+3

     = 11

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How you answer this??
AleksandrR [38]

Answer:

$298

Step-by-step explanation:

Profit = Income - Cost

2 tires for 35 each, so total cost is 2*35=70.  Sold for 65 each, so income is 2*65=130. Profit is 130 - 70 = $60.

3 rims for 75 each, so total cost is 3*75=225. Sold 136 each, so income is 3*136=408. Profit is 408 - 225 = $183.

5 headlight covers for 4 each, so total cost is 5*4=20. Sold for 15 each, so income is 5*15=75. Profit is 75 - 20 = $55.

Total profit = 60 + 183 + 55 = $298

5 0
3 years ago
Find the value of x in this equation. 25(4x − 3) − 2x = 45 − x
Charra [1.4K]

Answer:

x=40/33

Step-by-step explanation:

Let's solve your equation step-by-step.

25(4x−3)−2x=45−x

Step 1: Simplify both sides of the equation.

25(4x−3)−2x=45−x

(25)(4x)+(25)(−3)+−2x=45+−x(Distribute)

100x+−75+−2x=45+−x

(100x+−2x)+(−75)=−x+45(Combine Like Terms)

98x+−75=−x+45

98x−75=−x+45

Step 2: Add x to both sides.

98x−75+x=−x+45+x

99x−75=45

Step 3: Add 75 to both sides.

99x−75+75=45+75

99x=120

Step 4: Divide both sides by 99.

99x

99

=

120

99

x=

40

33

Answer:

x=40/33

7 0
3 years ago
Read 2 more answers
Match each statement with the right choice.
KengaRu [80]

Answer:

Your answer is:

1) 6 ( 5 + 8 ) = 78

2) 5 ( 10 + 3 ) = 65

3) 9 ( 2 + 4 ) = 54

4) 7 ( 3 + 6 ) = 63

Step-by-step explanation:

Hope this helped : )

4 0
3 years ago
Find the domain and range of function f(x) is equal to root √x-1
Vladimir79 [104]

Answer:


Step-by-step explanation:

If you meant f(x) = √x - 1, then the domain is [0, infinity).

If you meant f(x) = √(x-1), then the domain is [1, infinity).

When any ambiguity may rear its ugly head, use parentheses, as indicated here.

7 0
3 years ago
I need help pls-
Reptile [31]

Answer: y=4x

Step-by-step explanation:

hope it helped if not srry it was the answer to mine mate gl!

6 0
2 years ago
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