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qwelly [4]
3 years ago
9

Please help with this Piecewise problem!!

Mathematics
1 answer:
tino4ka555 [31]3 years ago
4 0

Remark

That was well worth doing. Desmos gave you the answer to the graph. Unfortunately I can only give you the correct graph. You will have to figure out from the choices which one is the correct answer -- or edit it so I can see what the rest of the question is.

Graph

The red one is f(x) is x + 3 {x <= -2}

The blue one is f(x) is x^2 - 1 {-2 <x <1} Notice the gap at 2. It is not continuous

The green one is f(x) is log_2(-x + 3)  {1 <=x < 3} and there is a gap between the blue and green one.

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Suppose that y varies inversely as x and that y=8 when x=3. Calculate the value of y when x= 10.
Svetach [21]

\bf \qquad \qquad \textit{inverse proportional variation} \\\\ \textit{\underline{y} varies inversely with \underline{x}} ~\hspace{6em} \stackrel{\textit{constant of variation}}{y=\cfrac{\stackrel{\downarrow }{k}}{x}~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we know that } \begin{cases} y = 8\\ x = 3 \end{cases}\implies 8=\cfrac{k}{3}\implies 24=k~\hfill \boxed{y = \cfrac{24}{x}} \\\\\\ \textit{when x = 10, what is \underline{y}?}\qquad \qquad y = \cfrac{24}{10}\implies y = \cfrac{12}{5}

3 0
3 years ago
How do you write 20 in exponential form
seropon [69]

Answer:

2 to the power of 2 times 5 to the power of 1

= 20

Step-by-step explanation:

6 0
3 years ago
Five less than two times a number is less than three times the number
Sedbober [7]
5(Less than sign) 2X(less than sign)3X+7
I think this is it?
6 0
3 years ago
11.
ra1l [238]

Answer:

$733.33

Step-by-step explanation:

The question is on finding the principal value

Formulae for simple interest

S.I= P×R/100×T where P is the invested amount of money, R is interest rate and T is time in years

Given that;

Simple interest=$77 , R=7% and T=1.5 years then

S.I= P×R/100×T...................substituting the values given

77=P×7/100 × 1.5

77=P×0.105

77/0.105 =P

$733.33=P

5 0
3 years ago
10 yards 1 foot 9 inches divided by 3
AysviL [449]

Answer:

127 inches

Step-by-step explanation:

A single yard is equal to 3 feet. So one yard 1 foot and 9 inches is:

3(10)+1 and 9 inches.

each feet has 12 inches, so it goes something like this:

12(31)+9 inches

multiply it out:

372+9\\381

Thats the total number of inches, now we divide by 3 (use long division:

\frac{381}{3}=127

Hope this helps!

6 0
3 years ago
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