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serious [3.7K]
3 years ago
10

4y+8x=78 solve for the values of x and y

Mathematics
1 answer:
mamaluj [8]3 years ago
3 0
Y=39/2-2X
X=39/4-1/2Y
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If r = 10 units and x = 14 units, then what is the volume of the cylinder shown above?
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4398.23 is the volume

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43.7

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ANSWER AND SHOW WORK FOR 40 POINTS
Elanso [62]

Answer:

Q1) (x+7)² = 9

x = -10, -4

Q2) (x-8)² = 144

x = -4, 20

Q3) (x-1)² = 81

x = -8, 10

Step-by-step explanation:

Q1) x² + 14x + 49 = 9

x² + 2(x)(7) + 7² = 9

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x + 7 = +/- sqrt(9)

x + 7 = 3

x = -4

x + 7 = -3

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Q2) x² - 16x + 64 = 144

x² - 2(x)(8) + 8² = 144

(x - 8)² = 144

x - 8 = +/- sqrt(144)

x - 8 = 12

x = 20

x - 8 = -12

x = -4

Q3) x² - 2x + 1 = 81

x² - 2(x)(1) + 1² = 81

(x - 1)² = 81

x - 1 =+/- sqrt(81)

x - 1 = 9

x = 10

x - 1 = -9

x = -8

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3 years ago
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It costs $3.45 to buy 5/8 lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts? Explain or show your
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2 years ago
What about this one?????
nikitadnepr [17]

Answer:

B) {14,7}

Step-by-step explanation:

If the x-axis increases by 2 and the y-axis increases by 1 then think of it as the y-axis will always be HALF of the x-axis. In this case, 7 is half of 14 (14÷2=7). :)

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3 years ago
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