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2 years ago

What is 80% rounded to the nearest tenth?

Mathematics

1 answer:

Sauron [17]2 years ago

5 0

Answer:

Step-by-step explanation:

the 80 is the tenth part so you do nothing its a trip up qustion

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the lenght of an arc in a circle with diameter 10 inches is 1.25π inches. determine the measure of the arc.

Luda [366]

Answer:

$the \: angle \: is \: 0.25\pi$

Step-by-step explanation:

the arc length is equal to the radius x angle (in radians)

$s=ra$

s= arc length, r= radius and a= the angle

solve for a ; a= s/r; a=

$1.25\pi/5$

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2 years ago

Plz help need help fast A rectangular prism has a length of 1 1/2 m, a width of 3 m, and a height of 5 1/2 m.

yuradex [85]

The volume is nine wholes and 3/4 or 9 3/4

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3 years ago

Does anyone know the answer to this!?

PolarNik [594]

Answer:

$|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

Step-by-step explanation:

You can use these Cramer's formulas to solve for x and y:

$x=\dfrac{|A_x|}{|A|},\\ \\y=\dfrac{|A_y|}{|A|},$

where

$|A|=\left|\begin{array}{cc}12&-13\\ \\17&-22\end{array}\right|\\ \\ \\|A_x|=\left|\begin{array}{cc}7&-13\\ \\-51&-22\end{array}\right|\\ \\ \\|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

So,

$|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

4 0

3 years ago

Joey is saving up for a down payment on a car. He plans to invest $2,000 at the end of every year for 3 years. If the interest r

____ [38]

A=Annual amount=2000
i=annual interest=0.0205
n=number of years=3
Present value
=A((1+i)^n-1)/(i(1+i)^n)
=2000(1.0205^3-1)/(.0205(1.0205^3))
=5762.15

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3 years ago

Read 2 more answers

Convert the rectangular coordinates to polar coordinates with

NikAS [45]

Given:

Rectangular coordinate = (8, 6)

To convert:

Rectangular coordinate to polar coordinate with r > 0 and 0 ≤ θ < 2π.

Solution:

Let us find r:

$r=\sqrt{x^{2}+y^{2}}$

$r=\sqrt{8^{2}+6^{2}}$

$r=\sqrt{100}$

r = 10

Now, find θ:

$$\tan \theta=\frac{y}{x}$

$$\tan \theta=\frac{6}{8}$

Cancel the common factor 2.

$$\tan \theta=\frac{3}{4}$

$$\theta=\tan^{-1} \left(\frac{3}{4}\right)$

θ = 36.87°

The polar coordinates are (r, θ) = (10, 36.87°).

6 0

2 years ago