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2 years ago

Did i do this correctly?

Mathematics

2 answers:

den301095 [7]2 years ago

5 0

Yes u did do this correctly

Mnenie [13.5K]2 years ago

4 0

Yes you did do that correctly

your pretty smart :)

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A farmer plants wheat in a rectangular plot of land having a length of 7260 feet and a width of

Leto [7]

Answer:

$6000

Step-by-step explanation:

There are 43560 square feet in an acre. The profit is expected to be ...

(7260 ft)(1200 ft) × ($30)/(43560 ft²) = $6000

_____

The area of the plot is 200 acres.

8 0

2 years ago

I need help proving this ASAP

Ket [755]

Answer:

See explanation

Step-by-step explanation:

We want to show that:

$\tan(x + \frac{3\pi}{2} ) = - \cot \: x$

One way is to use the basic double angle formula:

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{ \sin(x) \cos( \frac{3\pi}{2} ) + \cos(x) \sin( \frac{3\pi}{2}) }{\cos(x) \cos( \frac{3\pi}{2} ) - \sin(x) \sin( \frac{3\pi}{2}) }$

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{ \sin(x) ( 0) + \cos(x) ( - 1) }{\cos(x) (0) - \sin(x) ( - 1) }$

We simplify further to get:

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{ 0 - \cos(x) }{0 + \sin(x) }$

We simplify again to get;

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{- \cos(x) }{ \sin(x) }$

This finally gives:

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = - \cot(x)$

6 0

3 years ago

Use the power property to rewrite log3x9.

Kitty [74]

Answer:

$\log _3\left(x^9\right)=9\log _3\left(x\right)$

Step-by-step explanation:

Given the expression

$\log _3\:x^9$

now rewriting the expression

$\log _3\:x^9$

$\mathrm{Apply\:log\:rule\:}\log _a\left(x^b\right)=b\cdot \log _a\left(x\right),\:\quad \mathrm{\:assuming\:}x\:\ge \:0$

$=9\log _3\left(x\right)$

Therefore,

$\log _3\left(x^9\right)=9\log _3\left(x\right)$

9 0

2 years ago

Read 2 more answers

_____ lateral faces of a rectangular pyramid are congruent.<br> All of the<br> Opposite<br> Adjacent

Juli2301 [7.4K]

Opposite lateral faces of a rectangular pyramid are congruent.

I think is OPPOSITE .

7 0

3 years ago

Read 2 more answers

9: The points (−2,5) and (5,−9) lie on the same line. What is its equation in slope-intercept form of this line? y= x +

iren2701 [21]

Answer:

y=negative 2x+1

Step-by-step explanation:

rise over run negative 14 over 7 equals negative 2 and the y intercept is 1

5 0

2 years ago