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rewona [7]
3 years ago
14

Бу — 7 = 7 3х — 8y = — 31

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0

Answer:

I hope this helps!!!!!

grin007 [14]3 years ago
6 0

Answer:

creo que es X= 13 , Y= -1

Step-by-step explanation:

3*(6y-7)-8y=-31

18y-21-8y=-31

10y=-10

y=(-1)

6*-1-7= x ----> X=13

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What is the total surface area of a cylindrical tank having
UkoKoshka [18]

Answer:

Could be C) or D) None of these, 29688.05cm^2

Step-by-step explanation:

Did the question to round off to any numbers?

Formula for cylinder's T.S.A: 2 π r h + 2 π r^2

Diameter= 2 x radius

Radius = 70cm / 2 = 35cm

Height -> need to convert m to cm -> 100cm

Substitute these values into the formula:

2 x π  x 35 x 100 + 2 x π x (35)^2 = 29688.05cm^2

8 0
3 years ago
To make sure the lobsters are cool but not frozen, you need to keep their temperature between 32 and 40 degrees Fahrenheit while
MaRussiya [10]

C=5/9(F-32) 5/9 =1.8 32-32= 0* 1.8 = 0 32F= 0Celsius 40-32=8* 14.4 40F= 14.4 CTemperature between 0-14 degrees Celsius

5 0
3 years ago
Use the FOIL method to find the product. (8a − 8)(4a + 1)
melomori [17]

44a - 1

Im pretty sure


7 0
3 years ago
Pleaseee help answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!
Alexeev081 [22]

Answer:

108º

Step-by-step explanation:

to find the sum of interior angles: ( n − 2 ) × 180 = x

x = 540º

n = # of interior angles

first, solve for n

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180n - 360 = 540                         add 360 to both sides

180n = 900                                  divide both sides by 180

n = 5

to find measure of each angle:

540 ÷ 5 = 108º

5 0
3 years ago
Moira solved a problem on the board. What error did Moira make and how can she correct it?
Sati [7]

Answer:

C

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What you do on one side of the equation, you do to the other. She added 10x on the right side and subtracted 10x on the left when she should have added 10x on both sides.

3 0
3 years ago
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