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Nina [5.8K]
2 years ago
9

Please answer all of the problems attached in the pdf. I have fallen behind in studiess and need a little help - thanks

Mathematics
1 answer:
kotegsom [21]2 years ago
5 0

Answer:

Step-by-step explanation:

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Pleases show workkkkkkkkkkkkkkkk
melomori [17]

Answer:

5) 2(4 - n) = -3n

2 × 4 - 2 × n = -3n

8 - 2n = -3n

-2n + 3n = -8

1n = -8

n = -8/1

n = -8

6) 5 - 3(2 + 2w) = -7

5 - 3 × 2 + -3 × 2w = -7

5 - 6 - 6w = -7

-1 - 6w = -7

-6w = -7 + 1

-6w = -6

w = -6/-6

w = 1

7) 5(2r + 3) - 5 = 0

5 × 2r + 5 × 3 - 5 = 0

10r + 15 - 5 = 0

10r + 10 = 0

10r = -10

r = -10/10

r = -1

8) 3 - 5(2d - 3) = 4

3 - 5 × 2d - 5 × -3 = 4

3 - 10d + 15 = 4

-10d + 15 + 3 = 4

-10d + 18 = 4

-10d = 4 - 18

-10d = -14

d = -14/-10

d = 7/5

hope this helps you!!

7 0
3 years ago
Hi pls help me plzzzzzzzzzzzz ​
kirill115 [55]

Answer:

(-3,3) - in quadrant 2 because the quadrant numbers increase as you go counterclockwise

Step-by-step explanation:

5 0
3 years ago
A force of 84N is applied to an area of<br> 15cm". Work out the pressure in N/cm².<br> cm3)
Tcecarenko [31]

Answer:  5.6 N/cm^2

============================================

Work Shown:

Pressure = (Force)/(Area)

P = F/A

P = (84 N)/(15 cm^2)

P = (84/15) (N/cm^2)

P = 5.6 N/cm^2

For every square cm, 5.6 newtons of force is applied.

-------------

Extra info:

If you wanted to convert this to pascals, then you would need to convert 15 cm^2 to 0.0015 square meters. Then apply the formula above to get 56,000 pascals. 1 pascal is equivalent to 1 N/m^2.

8 0
3 years ago
The tallest television transmitting tower in the world is in North Dakota. From a point on level ground 5280 feet (one mile) fro
Tanya [424]

Answer:

The answer is 21.3

Step-by-step explanation:

6 0
3 years ago
What is the board feet of lumber if it has a 2-inch thickness, 3-inch width and length is 7ft?
Tom [10]

Answer:

B. 3.5

Step-by-step explanation:

2inch×3inch×7ft=board ft

2×3=6inch

7ft=84

6×84=504

504inch³=3.5board ft

#gamer

3 0
3 years ago
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