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Katyanochek1 [597]
3 years ago
11

Please show your work

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0

Answer:

a = 9

Step-by-step explanation:

a^2 = 41^2 - 40^2

a^2 = 1681-1600 = 81

a = 9

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Pls Help, 20 points!
skelet666 [1.2K]

Answer:

90/13, 45/13

Step-by-step explanation:

- 2 = x \\ 7x + 9y =  - 45 \\  \\ 7 \times ( - 2)y + 9y =  - 45 \\ y = 9 \\  \\ 7x + 9 \times 9 =  - 45 \\ x =  - 18 \\ (x.y) =  (- 18.9) \\  \\

Simplify:

- 2 \times 9 =  - 18 \\  7 \times ( - 18) + 9  \times 9 =  - 45 \\  - 18 =  - 18 \\  - 45 =  - 45

5 0
3 years ago
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An automobile detailer can detail 20 cars in 10 hours. At this rate, how many cars can he detail in 1 hour?
trapecia [35]
20/10 is 2 so he can detail two cars an hour
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3 years ago
69. The O'Brien's had $400.0 in a special
charle [14.2K]

Hello :D

$40.00 x 3 = $120.00

$20.00 x 2 = $40.00

$120.00 + $40.00 = $160.00

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There is $240.00 left in the account.

5 0
3 years ago
The quote for USD/CHF is listed as 1.4481/88 as shown. How many Swiss francs does it cost to buy 1 U.S. dollar?
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3 years ago
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PLEASE HELP ME I NEED IT<br> X=<br> Y=
vampirchik [111]
X=33 and Y= 57



Step by step explanation if you see the right angle at 57 degrees it part of x so x plus 57 is 90 and 90 minus 57 is 33 so x is 33 and x and y also form a right angle so x plus y should equal 90 and 90 minus 33 is 7 so that’s Y
7 0
3 years ago
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