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Ratling [72]
3 years ago
6

Solve the problem. x - 7.2 = 0.576 01.296 07.776 07.798 0.648

Mathematics
1 answer:
monitta3 years ago
7 0

Answer:

use a caculater

Step-by-step explanation:

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the intensity, I, of light varies inversely as the square of the distance, D2 , from the light source. If I is 150 units when D
podryga [215]

\bf \textit{\underline{x} varies inversely with }\underline{z^5} ~\hspace{5.5em} \stackrel{\textit{constant of variation}}{x=\cfrac{\stackrel{\downarrow }{k}}{z^5}~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{\underline{I} varies inversely with }\underline{D^2}}{I = \cfrac{k}{D^2}} \qquad \qquad \textit{we also know that } \begin{cases} I=150\\ D=6 \end{cases}

\bf 150=\cfrac{k}{6^2}\implies 150=\cfrac{k}{36}\implies 5400=k~\hfill \boxed{I=\cfrac{5400}{D^2}} \\\\\\ \textit{when I = 24, what is \underline{D}?}\qquad \qquad 24=\cfrac{5400}{D^2}\implies D^2=\cfrac{5400}{24} \\\\\\ D^2=225\implies D=\sqrt{225}\implies D=15

5 0
4 years ago
Write a rule for the transformation of triangle RST. (x,y) --> ( , )
bonufazy [111]

Answer:

A rule for the transformation of triangle RST is (7, -3)

5 0
3 years ago
Find the x. Please help
Afina-wow [57]

Answer:

14

Step-by-step explanation:

24/16 = 21/x

(24/16) • 21 = 14

3 0
3 years ago
Read 2 more answers
Help answer the question please.
Reptile [31]

Answer:

49

Step-by-step explanation:

He recieved 8 ticket (even number) per day for 7 days. 8×7=56

56 tickets ÷ 7 days

would equal to him receiving 8 tickets every one of the 7 days.

7 0
3 years ago
Find the height of the pyramid:
sergey [27]
Hello!
To find the height of a rectangular pyramid, you use the formula h=3(v/lw)
h= height (what we're trying to find)
v= volume
l= base length
w= base width

So, if you plug in everything, you'll see that the height is 14.
Want to check that you're correct? Use the formula V=lwh/3 to see if you get the same volume as before.

If you plug it in, you'll see that it's the same volume as before, so we have now found, checked, and proven the answer is 14!<span />
3 0
3 years ago
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