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Vladimir79 [104]
4 years ago
6

Rob cuts grass as a job. A neighbour asked Rob to give a quote for his backyard. Rob noticed that the yard was a rectangle shape

. He used the formula = × to calculate the area (in square metres). He measured the length along the fence (L=16.2 m) and the length next to the house (B= 6.7m). Show working
a) Using a calculator and the formula, find the area of the yard.
Mathematics
1 answer:
Montano1993 [528]4 years ago
6 0

Answer: 11780.9316

Step-by-step explanation:

just do 16.2 times 6.7 times 16.2 times 6.7

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Find the equation of a line passing through (-4,-3) and perpendicular to<br> 3 x + 2 y = 14.
Reil [10]

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

3x+2y=14\implies 2y=-3x+14\implies y=\cfrac{-3x+14}{2}\implies y = \cfrac{-3x}{2}+\cfrac{14}{2} \\\\\\ y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{3}{2}}x+7\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so therefore

\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{\cfrac{-3}{2}} ~\hfill \stackrel{reciprocal}{\cfrac{2}{-3}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{2}{-3}\implies \cfrac{2}{3}}}

so we're really looking for the equation of a line whose slope is 2/3 and passes through (-4 , -3)

(\stackrel{x_1}{-4}~,~\stackrel{y_1}{-3})\qquad \qquad \stackrel{slope}{m}\implies \cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-3)}=\stackrel{m}{\cfrac{2}{3}}(x-\stackrel{x_1}{(-4)}) \implies y+3=\cfrac{2}{3}(x+4) \\\\\\ y+3=\cfrac{2}{3}x+\cfrac{8}{3}\implies y=\cfrac{2}{3}x+\cfrac{8}{3}-3\implies y=\cfrac{2}{3}x-\cfrac{1}{3}

3 0
2 years ago
Pls help u need to simplify an equation but write the answer as a power
eduard

Raise  

3.8

to the power of  

12

.

9065737.90849499  

8 0
3 years ago
Use Liam DeWitt's Flash Card statement and the credit calendar for Exercises a-e.
Leno4ka [110]

The answers for this task are gotten in most cases by Careful Observation of Liam DeWitt's Bank Account Information.

<h3>What is a Bank Account Information?</h3>

A bank account information refers to all the details present on or which can be deduced from one's statement or record of banking activities..

Liam's Average Daily Balance is: Total sum of balance each day divided by the number of days. That is
(250+87+1300+470-200+34.76+102.71+45.90+84.60)/9

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B) Liam's Monthly Periodic Rate (MPR) is the Annual Interest Rate divided by the number of periods. In this case, that will be:

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C) Liam's Finance Charge is (Average Daily Balance * APR)/365.

That is (241.66 * 19.8)/365 = 13.11%

D) Liam's New Balance is calculated by removing new inflow from old balance. That is

(250+87.60+1,300+470.63+34.76+102.71+45+848.60)-3,240.5

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E) Liam's Available Line of Credit is clearly stated as $4,000.

See the link below for more about Bank Account Information:

brainly.com/question/15525383

8 0
2 years ago
Express 0.820.820, point, 82 as a fraction.
Delicious77 [7]

Question:

What is the answer that you want to find? Fraction to decimal, I get it but what is the fraction? I'm sorry but I didn't get that clear.

4 0
3 years ago
Please help mee!! For which value of x does f(x) = 2?
kow [346]

Answer:

um c I think, thats what g o o g l e says at least

Step-by-step explanation:

5 0
2 years ago
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