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3 years ago

10

Reparametrize the curve with respect to arc length measured from the point where t = 0 in the direction of increasing t. (Enter

your answer in terms of s.) r(t) = e5t cos(5t) i + 5 j + e5t sin(5t) k

1 answer:

Alex Ar [27]3 years ago

7 0

Answer:

I would need more information to help you

Step-by-step explanation:

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Tabby's mom says that she must read for at least 30 minutes each night. If m represents the. Umber of minutes reading, what ineq

Yuki888 [10]

The correct answer is:
m≥30

5 0

3 years ago

The scores on a law school entrance exam are normally distributed with a mean of 250 and a standard deviation of 50. Suppose 320

Olegator [25]

$\mathbb P(X>284)=\mathbb P\left(\dfrac{X-250}{50}>\dfrac{284-250}{50}\right)=\mathbb P(Z>0.68)\approx0.248$

Out of 320 student, you should expect about 25% of them to score above 284, or about 80 students.

7 0

3 years ago

If 50 is 20% of a value, what is that value?

AURORKA [14]

Answer:

The value is 250.

Step-by-step explanation:

It is 250, because if 20% is 50, you need to Multiply it 5 times to get to 100%.

8 0

3 years ago

Read 2 more answers

Evaluate (f − g)(2) for f(x) = 2x2 − 18 and g(x) = –3x − 7.

SpyIntel [72]

For this case we have the following functions:

$f (x) = 2x ^ 2-18\\g (x) = - 3x-7$

We must find:

$(f-g) (2)$

By definition, we have to:

$(f-g) (x) = f (x) -g (x)$

So:

$(f-g) (x) = 2x ^ 2-18 - (- 3x-7)\\(f-g) (x) = 2x ^ 2-18 + 3x + 7\\(f-g) (x) = 2x ^ 2 + 3x-11$

Then, we evaluate in x = 2:

$(f-g) (2) = 2 (2) ^ 2 + 3 (2) -11\\(f-g) (2) = 2 (4) + 6-11\\(f-g) (2) = 8 + 6-11\\(f-g) (2) = 8 + 6-11\\(f-g) (2) = 3$

ANswer:

$(f-g) (2) = 3$

8 0

3 years ago

Find the area and the perimeter. Use 3.14. Round your answer to the nearest tenth. Need help ASAP!!

stealth61 [152]

The formula of an area of trapezoid:

$A=\dfrac{base_1+base_2}{2}\cdot height$

We have:

$base_1=3ft+4ft=7ft\\\\base_2=3ft\\\\height=3ft$

Substitute:

$A=\dfrac{7+3}{2}\cdot3=\dfrac{10}{2}\cdot3=5\cdot3=15\ ft^2$

The perimeter:

$P=3+4+5+3+3=18\ ft$

4 0

3 years ago