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4 years ago

How do you solve e^7 inx

1 answer:

4 0

(2.7182827)(i)nx

Your Answer =1096.633158inx

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Determine the approximate value of x.

yarga [219]

Answer:

C. 6.736

Step-by-step explanation:

The unmarked angle is 180-80-40 = 60 degrees. Given the angles of the triangle and one side length there is enough information to use the Law of Sines to solve the triangle--eliminating choice D.

The angle opposite x is larger than the angle opposite 5, so x will be larger than 5. That leaves only answer choice C: 6.736.

___

If you want to actually use the law of sines to determine x, you know that ...

x / sin(60°) = 5 / sin(40°)

x = 5·sin(60°)/sin(40°) . . . . . . multiply by sin(60°)

x ≈ 6.736

6 0

4 years ago

Question 1: What is (3 5/9) as a decimal? Question 2: What is (-2 2/3) as a decimal?

Leni [432]

Answer:

A: 3.5

B: 2.6

Step-by-step explanation:

3 0

4 years ago

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2 broccoli, 2 carrot, 2 cupcakes, 1 chicken, 1 hamburger, 1 rice pudding, and 1 meatloaf, what is the probability of not choosin

natka813 [3]

Answer:

one out of 10 chance

Step-by-step explanation:

8 0

4 years ago

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Evaluate the integral using the indicated trigonometric substitution. (use c for the constant of integration.) x^3 / sqrt x^2 +

slava [35]

$\displaystyle\int\frac{x^3}{\sqrt{x^2+49}}\,\mathrm dx$

Taking $x=7\tan\theta$ gives $\mathrm dx=7\sec^2\theta\,\mathrm d\theta$ , so that the integral becomes

$\displaystyle\int\frac{(7\tan\theta)^3}{\sqrt{(7\tan\theta)^2+49}}(7\sec^2\theta)\,\mathrm d\theta$
$=\displaystyle7^4\int\frac{\tan^3\theta\sec^3\theta}{\sqrt{49\tan^2\theta+49}}\,\mathrm d\theta$
$=\displaystyle7^3\int\frac{\tan^3\theta\sec^3\theta}{\sqrt{\tan^2\theta+1}}\,\mathrm d\theta$
$=\displaystyle7^3\int\frac{\tan^3\theta\sec^3\theta}{\sqrt{\sec^2\theta}}\,\mathrm d\theta$
$=\displaystyle7^3\int\frac{\tan^3\theta\sec^3\theta}{|\sec\theta|}\,\mathrm d\theta$

When $\sec\theta>0$ , we have

$=\displaystyle7^3\int\frac{\tan^3\theta\sec^3\theta}{\sec\theta}\,\mathrm d\theta$
$=\displaystyle7^3\int\tan^3\theta\sec^2\theta\,\mathrm d\theta$

and from here we can substitute $u=\tan\theta$ to proceed from here.

Quick note: When we set $x=7\tan\theta$ , we are implicitly enforcing $-\dfrac\pi2$ just so that the substitution can be undone later via $\theta=\tan^{-1}\dfrac x7$ . But note that over this domain, we automatically guarantee that $\sec\theta>0$ , so the absolute value bars can be dropped immediately.

6 0

3 years ago

Pls help me

Kruka [31]

Answer:

A = pi x r²

A = pi x 8²

A = 64pi

Step-by-step explanation:

I hope this helps :D

5 0

3 years ago

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