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3 years ago

HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Dahasolnce [82]3 years ago

8 0

Answer: The scale factor is 2

(2 as a fraction is 2/1)

In-s [12.5K]3 years ago

4 0

Answer:The scale factor is 2

Step-by-step explanation:

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Sauron [17]

let's firstly find the equation of the parabola, bearing in mind that x-intercepts or solutions/zeros/roots means y = 0.

$\bf ~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=1\\ k=-9 \end{cases}\implies y=a(x-1)^2-9 \\\\\\ \textit{we also know that } \begin{cases} x=0\\ y=-6 \end{cases}\implies -6=a(0-1)^2-9\implies 3=a(-1)^2$

$\bf 3=a\qquad \qquad \textit{therefore}\qquad \qquad \boxed{y=3(x-1)^2-9} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{y}{0}=3(x-1)^2-9\implies 9=3(x-1)^2\implies \cfrac{9}{3}=(x-1)^2\implies 3=(x-1)^2 \\\\\\ \pm\sqrt{3}=x-1\implies \pm\sqrt{3}+1=x\implies x= \begin{cases} \sqrt{3}+1\\ -\sqrt{3}+1 \end{cases}\implies x\approx \begin{cases} 2.73\\ -0.73 \end{cases}$

8 0

3 years ago

Read 2 more answers

Use k as the constant of proportionality to write the equation expressing the relationship: y varies inversely as x.

yan [13]

"Inversely" generally means the relationship is proportional to the reciprocal.
y = k/x

5 0

3 years ago

The dean of the School of Fine Arts is trying to decide whether to purchase a copy machine to place in the lobby of the building

tigry1 [53]

Answer:

$34,816.60

Step-by-step explanation:

The computation of the maximum amount of cash should willing to pay for the copy machine by using the present value is shown below:

Present value is

$= Incremental\ cash\ flows \times PVIFA\ factor$

where,

Incremental cash flows is $14,000 per year

Discount rate is 10%

And, the number of years is three years

PVIFA factor for 10% at 3 years is 2.4869

Refer to the PVIFA factor table

Now placing these values to the above formula

So, the present value is

$= \$14,000 \times 2.4869$

= $34,816.60

6 0

4 years ago

A company makes a surplus of $61,050 for the year. The CEO plans to evenly split the surplus among the top 75 employees and rewa

kolbaska11 [484]

Answer:

Step-by-step explanation:

3 0

3 years ago

1. demand for product

dimulka [17.4K]

1. demand for product buyer's willingness to pay .
2. example of fixed cost buyer's ----rent
3. sales receipts
4. credit discount
5. example of variable cost
6. moves slow-moving goods ---markdown
7. business upturn
8. used for business expansion
9. depends on prime rate
10. assures profit on item sold markup

2/10, net 30
credit
interest rate
workers' wages
revenue
recovery

3 0

4 years ago

Read 2 more answers