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ankoles [38]
3 years ago
9

Two rectangles are similar. One has a length of 12 cm and a width of 9 cm, and the other has a width of 8 cm. Find the length of

the second rectangle. Round to the nearest tenth if necessary.
Mathematics
2 answers:
Feliz [49]3 years ago
8 0
If the rectangles are similar, then the ratio of corresponding sides are in proportion.

12/x = 9/8 where x is the length of the smaller rectangle

Cross multiply to get:

9x = 12*8

x = 32/3 which is 10.67 approx


MArishka [77]3 years ago
3 0

Answer:10.7cm is the answer

Step-by-step explanation:

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Grace and her brother Sid want to raise money to go to band camp. Their parents have agreed to help them earn up to $400 by payi
LenKa [72]

Answer:

25m + 10b = 400

Step-by-step explanation:

Total amount that can be earned = $ 400

Amount earned on mowing a lawn = $ 25

Amount earned per hour on babysitting = $10

Amount earned for mowing one lawn is $ 25, so amount earned for mowing m lawns will be $ 25m

Amount earned for one hour of babysitting is $ 10, so amount earned for babysitting for b hours will be $ 10b

Total amount earned = Amount earned from mowing m lawns + Amount earned from babysitting for b hours

Using the values from above, we can set up the equation as:

400 = 25m + 10b

or

25m + 10b = 400

This equation represents the number of lawns they can mow, m, and hours they can babysit, b, to earn $400.

3 0
3 years ago
Rewrite the expression in terms of the given function 1/1-sinx - sinx/1+sinx
Feliz [49]
Your question seems a bit incomplete, but for starters you can write

\dfrac1{1-\sin x}-\dfrac{\sin x}{1+\sin x}=\dfrac{1+\sin x}{(1-\sin x)(1+\sin x)}-\dfrac{\sin x(1-\sin x)}{(1+\sin x)(1-\sin x)}=\dfrac{1+\sin x-\sin x(1-\sin x)}{(1-\sin x)(1+\sin x)}

Expanding where necessary, recalling that (1-\sin x)(1+\sin x)=1-\sin^2x=\cos^2x, you have

\dfrac{1+\sin x-\sin x(1-\sin x)}{(1-\sin x)(1+\sin x)}=\dfrac{1+\sin x-\sin x+\sin^2x}{\cos^2x}=\dfrac{1+\sin^2x}{\cos^2x}

and you can stop there, or continue to rewrite in terms of the reciprocal functions,

\dfrac{1+\sin^2x}{\cos^2x}=\sec^2x+\tan^2x

Now, since 1+\tan^2x=\sec^2x, the final form could also take

\sec^2x+\tan^2x=\sec^2x+(\sec^2x-1)=2\sec^2x-1

or

\sec^2x+\tan^2x=(1+\tan^2x)+\tan^2x=1+2\tan^2x
7 0
4 years ago
Make b the subject of this formula. a=9b
USPshnik [31]

Answer:

a = 9b

divide each side by 9

\frac{a}{9} = b

6 0
3 years ago
PLEASE HELP AND EXPLAIN [100 POINTS]
prisoha [69]
I believe the answer is graph A.

As x increases (moving to the right), y decreases (moving down).
3 0
3 years ago
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How do you turn repeating decimals into fractions? Thanks to whoever answers.!<3
seraphim [82]
You will need to move the decimal 
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3 years ago
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