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likoan [24]
3 years ago
7

Let f(x) = - x ^ 3 - (4x - 1) Find f(- 5)

Mathematics
1 answer:
timofeeve [1]3 years ago
3 0

Answer:

146

Step-by-step explanation:

replace every x with -5

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Natalija [7]

Answer:

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<u>Correct choice is</u>

  • A. TP bisect OM

#4

<u>Correct choice is</u>

  • B. ∠WYX and ∠WYZ are linear pairs

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  • C. Perpendicular lines.
8 0
3 years ago
Please help im stuck on this question! :)​
nydimaria [60]

Answer:

The answer is 6 (:

Step-by-step explanation:

88-4=84

8+6=14

84 divied by 14= 6

hope this helps! <3

7 0
3 years ago
Which equation could generate the curve in the graph below
Setler79 [48]
The curve has been attached and the answer choices are:

y = 3x² – 2x + 1

y = 3x² – 6x + 3

y = 3x²<span> – 7x + 1
</span>
The attached graph has a vertex in the first quadrant. Therefore, the coordinates of the vertex would be both positive.

Let's start with first equation:

                                               y = 3x² – 2x + 1

using the equation of axis:
                                            x = -b/2a
                                            x = 2/6
                                            x = 1/3
SUbstituting the value of x in the main equation to get the y-coordinate of the vertex.
                                               y = 3(1/3)² – 2(1/3) + 1
                                               y = 3/9 – 2/3 + 1
                                               y = 1/3 – 2/3 + 1
                                               y = (1 - 2 + 3)/3
                                               y = 2/3

Hence, the vertex would be:
                                             (h,k) = (1/3 , 2/3)

Also, the leading coefficient is positive, so the parabola would be concave up.

Thus the final answer choice will be:

                                             y = 3x² – 2x + 1

3 0
3 years ago
Lillian works 7hours each day for 5 days a week she earn £420 each week how much does she earn per hour
frosja888 [35]

Answer:

£12 per hour

Step-by-step explanation:

7 × 5 = 35 hours

35 h : 420

1 h : x

x = 420×1 / 35

= £12 per hour

8 0
3 years ago
Why does 2(2x+3)=4x+6​
PilotLPTM [1.2K]
The 2 outside the brackets means that everything within the brackets needs to be multiplied by 2
8 0
2 years ago
Read 2 more answers
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