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Svetlanka [38]
3 years ago
9

Amy earned $25 after babysitting for 3 hours. If she always charges the same rate, how many will she make after working for 7 ho

urs

Mathematics
1 answer:
Sidana [21]3 years ago
8 0
The answer is 7×3 =........

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Jose will travel 268 kilometers with his family this weekend. How many miles will he travel? Use the conversion table to find
mixer [17]

Answer:

166.5275

Step-by-step explanation:

i looked it up

3 0
3 years ago
Read 2 more answers
Find the vertex, focus, directrix, and focal width of the parabola. (5 points)
Anarel [89]

\bf \textit{vertical parabola vertex form with focus point distance} \\\\ 4p(y- k)=(x- h)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h,k+p)}\qquad \stackrel{directrix}{y=k-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\cap}\qquad \stackrel{"p"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}

\bf -\cfrac{1}{20}x^2=y\implies \cfrac{x^2}{-20}=y\implies x^2=-20y\implies (x-0)^2=-20(y-0) \\\\\\ (x-\stackrel{h}{0})^2=4(\stackrel{p}{-5})(y-\stackrel{k}{0})

something noteworthy is that the squared variable is the "x", thus the parabola is a vertical one, the "p" value is negative, so is opening downwards, and the h,k is pretty much the origin,

vertex is at (0,0)

the focus point is "p" or 5 units down from there, namely at (0, -5)

the directrix is "p" units on the opposite direction, up, namely at y = 5

the focal width, well, |4p| is pretty much the focal width, in this  case, is simply yeap, you guessed it, 20.

8 0
3 years ago
Carbon–14 is a radioactive isotope that decays exponentially at a rate of 0.0124 percent a year. How many years will it take for
patriot [66]
100-0.0124=99.9876

10%=1/10
1/10P=P(0.999876)^t
divide both sides by P
1/10=0.999876^t
take ln of both sides
ln(1/10)=t (ln(0.999876))
divide both sides by (ln(0.999876))
ln(1/10)/(ln(0.999876))=t
use calculator
18568.08=t
about 18568 years

5 0
3 years ago
5X/2 = 20<br> WHAT IS THE ANSWER TO X
mariarad [96]

Answer:

The answer is 8

Step-by-step explanation:

29 X 2 is 40

40 divided by 5 is 8

4 0
3 years ago
Your friend just purchased a new sports car for $32,000. He received $6,000 for his trade in and he used that money as a down pa
V125BC [204]
Hi there

the installment price of the loan is

619.71×48=29,746.08....answer

Hope it helps
5 0
3 years ago
Read 2 more answers
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