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Marrrta [24]
3 years ago
13

|3x + 1l= 8. i don’t know what the answer is lol

Mathematics
1 answer:
sesenic [268]3 years ago
5 0

Answer:

c

Step-by-step explanation:

3x+1=8

3x+1=-8

x=7/3

3x+1=-8

x=7/3

x=-3

x1=-3

x2=7/3

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Choose two positive integers a and b, making sure that a<5 and b>80 . The width of a rectangular computer screen is a inch
qwelly [4]

Answer:

Dimensions of the screen are a minimum of 10 inches wide by 8 inches high. The difference between the height and width will be 2 inches

Step-by-step explanation:

Height = H

Width = H + a

Area = Height x Width

b = H * (H + a)

b = H^{2} + aH

H^{2} + aH > 80

H^{2} + aH - 80 > 0

a<5 means 'a' can be a = 1, 2, 3, 4

Solving for H for each option of 'a' will give values of 'H' using the quadratic formula below

H = \frac{-b\±\sqrt{b^{2}-4ac}}{2a}

As 'a' and 'b' must be positive integers, H and W must be positive integers as well,

a = 1, H = 8.46, H = -9.46

a = 2, H = 8, H = -10

a = 3, H = 7.57, H = -10.57

a = 4, H = 7.17, H = -11.17

Based on above possible answers:

a=2, H=8

W = H + a

W = 8 + 2

W = 10

Dimensions of the screen are a minimum of 10 inches wide by 8 inches high. The difference between the height and width will be 2 inches

5 0
3 years ago
Approximately how many people died during the Civil War?
ivanzaharov [21]

Answer:

600,000

Step-by-step explanation:

around 620,000 so 600000 is the closest answer

7 0
3 years ago
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You made 1⁄2 quart of lemonade. How many 1⁄4 quart-sized glasses will you be able to fill with lemonade
KatRina [158]

Answer:

Hey! I believe this is your answer:

4 glasses

Hope this helped!

Step-by-step explanation:

4 0
3 years ago
Help me please and thank you
Yuri [45]

Answer:

A

Step-by-step explanation:

Solution is in this picture.

4 0
3 years ago
-2c+22=10
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Answer:

The answer is that c = 6

Step-by-step explanation:

4 0
3 years ago
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