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lianna [129]
2 years ago
9

Can yall plz help me

Mathematics
1 answer:
almond37 [142]2 years ago
7 0

Answer : the surface lateral is,,,Step-by-step explanation:

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The line L is a tangent to the curve with equation y= 4x^2 +1 . The line L cuts the y axis at (0,8) and has a positive gradient.
sergeinik [125]

A generic point on the graph of the curve has coordinates

(x, 4x^2+1)

The derivative gives us the slope of the tangent line at a given point:

f(x) = 4x^2+1 \implies f'(x) = 8x

Let k be a generic x-coordinate. The tangent line to the curve at this point will pass through (k, 4k^2+1) and have slope 8k

So, we can write its equation using the point-slope formula: a line with slope m passing through (x_0, y_0) has equation

y-y_0 = m(x-x_0)

In this case, (x_0, y_0)=(k, 4k^2+1) and m=8k, so the equation becomes

y-4k^2-1 = 8k(x-k)

We can rewrite the equation as follows:

y-4k^2-1 = 8k(x-k) \iff y = 8kx - 8k^2+4k^2+1 \iff y = 8kx-4k^2+1

We know that this function must give 0 when evaluated at x=0:

f(x) = 8kx-4k^2+1 \implies f(0) = -4k^2+1 = 8 \iff -4k^2 = 7 \iff k^2 = -\dfrac{7}{4}

This equation has no real solution, so the problem looks impossible.

5 0
3 years ago
The table shows the outputs, y, for different inputs, x:
ASHA 777 [7]
Part A:
Yes, the data represent a function because there is at least one x-value for every y-value.

Part B:
When x=6 in the input-output table, y=14. When x=6 in the relation f(x)=7x-15, f(x)=7(6)-15=27. <span>The equation has a greater value when x=6.

Part C:</span>
Set f(x) equal to 6 in the equation:
6=7x-15
Solve for x:
7x=21
x=3
<span>x=3 when f(x)=6</span>
3 0
3 years ago
A school cafeteria sold 1,600 slices of pizza the first week, 800 the second week, 400 the third week if this patter continues,
Mariulka [41]

Answer:

6th week.

Step-by-step explanation:

Each week he is selling 1/2 of the week before so

In the  3rd week he sells 400

- in the 4th week it will be 200

- in 5th week 100

- in 6th seek 50.

7 0
3 years ago
Read 2 more answers
Anyone know this answer this pleasee​
HACTEHA [7]

Answer:

x=136°

Step-by-step explanation:

x=180°-(180-(46+90))

x=180-44

x=136

6 0
3 years ago
Can someone please help me out pleasee
xxMikexx [17]

Answer:

AA only

Step-by-step explanation:

A= Angle

S= Side

Both triangles only have 2 angles so it's AA (angle angle)

5 0
2 years ago
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