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yaroslaw [1]
2 years ago
6

HELLPPP I need help asappp

Mathematics
1 answer:
sattari [20]2 years ago
3 0

Answer:

(8,5)

Step-by-step explanation:

x=8

5*8-2y=30

40-2y=30 .      subtract 40 from both sides

-2y=-10 .           divide both sides by-2

y=5

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For what value of the number k is the following function differentiable at x=2
d1i1m1o1n [39]

Answer:

For f(x) to be differentiable at 2, k = 5.

Step-by-step explanation:

For f(x) to be differentiable at x = 2, f(x) has to be continuous at 2.

For f(x) to be continuous at 2, the limit of f(2 – h) = f(2) = f(2 + h) as h tends to 0.

Now,

f(2 – h) = 2(2 – h) + 1 = 4 – 2h + 1 = 5 – 2h.

As h tends to 0, lim (5 – 2h) = 5

Also

f(2 + h) = 3(2 + h) – 1 = 6 + 3h – 1 = 5 + 3h

As h tends to 0, lim (5 + 3h) = 5.

So, for f(2) to be continuous k = 5

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3 years ago
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4 0
2 years ago
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6 0
3 years ago
Which statement is an example of heat transfer by convection?
Paraphin [41]

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Step-by-step explanation:

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8 0
3 years ago
Am I correct? (Perfect Square Form)
natka813 [3]

Answer:

(x -3 )^2 = 10

Step-by-step explanation:

Given

x^2 - 6x - 1 = 0

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x^2 - 6x - 1 = 0

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3 years ago
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