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2 years ago

The multiplicative invers 5/8^7?

Mathematics

1 answer:

amid [387]2 years ago

6 0

Answer:

5÷8^=5

___

Now,

___ × 7 = 35

64 ____

I think this is right???

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Write each expression as an algebraic (nontrigonometric) expression in u, u > 0.

max2010maxim [7]

Answer:

$\displaystyle \sin\left(2\sec^{-1}\left(\frac{u}{10}\right)\right)=\frac{20\sqrt{u^2-100}}{u^2}\text{ where } u>0$

Step-by-step explanation:

We want to write the trignometric expression:

$\displaystyle \sin\left(2\sec^{-1}\left(\frac{u}{10}\right)\right)\text{ where } u>0$

As an algebraic equation.

First, we can focus on the inner expression. Let θ equal the expression:

$\displaystyle \theta=\sec^{-1}\left(\frac{u}{10}\right)$

Take the secant of both sides:

$\displaystyle \sec(\theta)=\frac{u}{10}$

Since secant is the ratio of the hypotenuse side to the adjacent side, this means that the opposite side is:

$\displaystyle o=\sqrt{u^2-10^2}=\sqrt{u^2-100}$

By substitutition:

$\displaystyle= \sin(2\theta)$

Using an double-angle identity:

$=2\sin(\theta)\cos(\theta)$

We know that the opposite side is √(u² -100), the adjacent side is 10, and the hypotenuse is u. Therefore:

$\displaystyle =2\left(\frac{\sqrt{u^2-100}}{u}\right)\left(\frac{10}{u}\right)$

Simplify. Therefore:

$\displaystyle \sin\left(2\sec^{-1}\left(\frac{u}{10}\right)\right)=\frac{20\sqrt{u^2-100}}{u^2}\text{ where } u>0$

4 0

2 years ago

What is an equation of the line that is perpendicular to y=−23x+5 and passes through the point (2, 11) ?

hichkok12 [17]

Answer:

The equation would be y = 1/23x - 251/23

Step-by-step explanation:

To start, you need to locate the slope of the first equation. Since the slope is the coefficient of x, we know it to be -23. Now, the perpendicular slope is the opposite and reciprocal of that, which makes the new slope 1/23.

Now that we have this, we can use the point and the slope in point-slope form to get the equation.

y - y1 = m(x - x1)

y - 11 = 1/23(x - 2)

y - 11 = 1/23x - 2/23

y = 1/23x - 251/23

5 0

3 years ago

Read 2 more answers

I need help is it A B C or D

Evgesh-ka [11]

Y=12/x
12/2=6
12/4=3
12/8=1.5 or 3/2
12/12=1
Answer is b

4 0

3 years ago

Kelly has nine pieces of ribbon. She recorded the length of each piece in the line plot shown.

Ugo [173]

Answer: 44 inches

Step-by-step explanation:

The 3 longest are 14.5 14.5 and 15 so the answer is adding them and 44 is the answer.

6 0

3 years ago

Which are the roots of x^2-4x+4=20

Marysya12 [62]

X2+-4x+4=20 the final answer is 20!

3 0

3 years ago