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3 years ago

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The sum of two numbers is 74. One number is 6 times less than 4 times the second number. Find the two numbers.

1 answer:

OLEGan [10]3 years ago

3 0

I'll get you started. Let x and y be the two numbers. we have: x + y = 74 (sum is 74) x = 4y - 6 (the number x is six less than 4 times y) Now that you have the equations use an algebraic techniques to eliminate one variable thereby solving for the other. If you need more help add a comment to your question.

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PSYCHO15rus [73]

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Find the surface area of the cylinder formed by the net. Use 3.14 for π.

sineoko [7]

Answer:

138.16 square feet

Step-by-step explanation:

The surface area of the cylinder consists of one rectangle and two circles.

1. The radius of the circle is 4 ft, then the area of the circle is

$A_{circle}=\pi r^2 =\pi \cdot 4^2 =16\pi \ ft^2$

2. The width of the rectangle is 1.5 ft, the length of the rectangle is the circumference of the circle.

Find the circumference:

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Hence,

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3. The surface area of the cylinder is

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3 years ago

10 points!<br> Find the shape resulting from the cross-section of the cylinder.

Kay [80]

Answer:

Triangle

Step-by-step explanation:

cross section through the cone perpendicular will be a triangle with the base of the cone's base diameter.

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