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3 years ago

Is this correct? please help I thought that what I did was correct but just to be correct.

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

8 0

Yes that is correct

spaceholder spaceholder

34kurt3 years ago

3 0

You are correct, 14/20 simplified is 7/10

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D = b^2 -4ac solve for a 2/3 (x-18y) = 6y solve for x

seropon [69]

Answer:

a = $\frac{b^2-d}{4c}$

x = 27y

Step-by-step explanation:

Order of Operations: BPEMDAS

Question 1

Step 1: Write out discriminant

d = b² - 4ac

Step 2: Subtract b² on both sides

d - b² = -4ac

Step 3: Divide both sides by -1

b² - d = 4ac

Step 4: Divide both sides by 4c

a = $\frac{b^2-d}{4c}$

Question 2

Step 1: Write out equation

2/3(x - 18y) = 6y

Step 2: Distribute parenthesis

2/3x - 12y = 6y

Step 3: Isolate x by adding 12y on both sides

2/3x = 18y

Step 4: Divide both sides by 2/3

x = 27y

7 0

2 years ago

How do u do this?!?!

soldi70 [24.7K]

Answer:

-9

Step-by-step explanation:

5-p

p=-9

-4 is greater than 5-p

8 0

1 year ago

-6x+4y=10 X-5y=-21 Please solve !

galina1969 [7]

X-5y=-21
x=-21+5y

-6(-21+5y)+4y=10
126+-30y+4y=10
126+-26y=10
-26y=-116
y=4.4615
x=1.3076

5 0

3 years ago

Find the volume of the figure

mina [271]

Answer:

It is C. 233 because if you multiply 5x5x5 thats 125

If you multiply 12x3x3, its 108. So add 108+125 and that will be your final answer. Hope this helps and if so then please mark as brainliest. Remember that volume= length x width x height.

7 0

2 years ago

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Question 10 Complete 6 m/s = ? km/h

nadezda [96]

Answer:

21.6 km/hr

Step-by-step explanation:

multply the speed value by 3.6

8 0

2 years ago

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