3 years ago

Would this be h=4 or h=12? 4=h-8

Mathematics

1 answer:

blsea [12.9K]3 years ago

4 0

Answer:

H=12

Step-by-step explanation:

12-8=4

hope this helps!!

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The trapezoid consists of a triangle and a parallelogram. The area of the trapezoid is 48 square feet. Find the length of the ba

Juli2301 [7.4K]

Answer:

4ft

Step-by-step explanation:

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3 years ago

Write the equation of the sphere in standard form. x2 + y2 + z2 + 8x − 6y + 4z + 20 = 0

Nuetrik [128]

Answer:

$(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0$

Step-by-step explanation:

You have to find a, b, c, r so that the polynomial expands to match the given equation.

$(x-a)^2 + (y-b)^2 + (z-c)^2 - r^2 =\\x^2-2ax+a^2+\\y^2-2by+b^2+\\z^2-2cz+c^2-r^2 =\\ x^2 + y^2 + z^2 + 8x - 6y + 4z + 20$

$(a^2+b^2+c^2-r^2-20)+\\x(-8-2a)+y(6-2b)+z(-4-2c)=0$

$-8-2a=0, 6-2b=0, -4-2c=0\\a=-4, b=3, c=-2$

$(-4)^2+3^2+(-2)^2-r^2-20 = 0$

$16+9+4-20=r^2$

$r^2=9$

$r=3$

$(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0$

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4 years ago

The number 260 is separate into two parts of the first part is eight more than three times the second part. what are the two num

bagirrra123 [75]

Answer:

63 & 197

Step-by-step explanation:

$260 = (3x + 8) + x$

$260 = 4x + 8$

$x = 63$

Thus second number is 3*63+8=197

5 0

4 years ago

Read 2 more answers

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enot [183]

Just graph them online and see which quadrant

3 0

3 years ago

Read 2 more answers

Please help, Answers to any of these questions??

igomit [66]

Answer:

13) began with 34

Step-by-step explanation:

20 cards replaced and now have 37

37-20=17

17 is half of the baseball cards

17x2= 34 which is what you began with

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3 years ago