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3 years ago

Given that Flx) = x2 + 2, evaluate F(2).

Mathematics

1 answer:

wariber [46]3 years ago

3 0

Step-by-step explanation:

f(2) = 2^2 +2

= 4+2

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Find the area of the circle. Use 3.14 42 mm

Kay [80]

Answer:

A = 5538.96mm

Step-by-step explanation:

A = πr2

A = π × 422

A = 1764π

A = 5538.96

Please mark as brainliest if answer is right

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2 years ago

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Simplify each expression

Simora [160]

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2 years ago

Use the arc length formula to find the length of the curve y = 4x − 5, −1 ≤ x ≤ 3. Check your answer by noting that the curve is

Reptile [31]

Answer:

$4\sqrt{17}$

Step-by-step explanation:

Let's find the answer by using the arc length formula which is:

$\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^{2} } } \, dx$

First, let's find dy/dx which is:

y=4x-5

y'=4*(1)-0

y'=4, now let's use the formula:

$\int\limits^3_{-1} {\sqrt{1+4^{2}} } \, dx=\sqrt{17} *(3-(-1))=4\sqrt{17}$

Now, using the distance formula we have:

$d=\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }$

$y(-1)=4*(-1)-5=-9 \\y(3)=4*(3)-5=7$

So we have two points (-1, -9) and (3, 7) so:

$d=\sqrt{(3-(-1))^{2} +(7-(-9))^{2} }=4\sqrt{17}$

Notice both equations gave the same length $4\sqrt{17}$ .

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3 years ago

How many sales would you make a week? i would make between 3 and 5 sales per week?

svp [43]

You will make 4 sales if you are making a sale between 3 and five because 4 is whats in between 3 and 5. If your are to compute you will make a sale of average 4 because the average of 3 and 4 is 5. Computed as 3+5/2=4.

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2 years ago

Determine the value of x.

kvasek [131]

Answer:

25°

Step-by-step explanation:

The angle of a right triangle is always 90°. 90-35=51. 25 times 2 is 50 plus 1 is 51, so x is 25°.

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2 years ago

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