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Bumek [7]
3 years ago
5

URGENT I NEED HELP FIRST PERSON WHO ANSWERS I'LL GIVE BRAINLYEST

Mathematics
2 answers:
ankoles [38]3 years ago
7 0

Answer:

  • C. π(3in)2(12in) − 9(four over threeπ(1.5in)3)

Step-by-step explanation:

Volume of water is the difference of volume of vase at 12 in height and the total volume of marbles.

<u>Volume of cylinder up to water level:</u>

  • Vs = πr²h = π(6/2)²(12) = π×(3 in)²×(12 in)

<u>Volume of marbles:</u>

  • Vm = 9(4/3πr³) = 9×(4/3×π(3/2)³) = 9×(4/3×π×(1.5 in)³)

<u>Volume of water:</u>

  • Vw = Vs - Vm = π×(3 in)²×(12 in) - 9×(4/3×π×(1.5 in)³)

Correct choice is C

ella [17]3 years ago
7 0

Answer:

C. π(3in)2(12in) − 9(four over threeπ(1.5in)3)

Step-by-step explanation:

  • Volume of water is the difference of volume of vase at 12 in height and the total volume of marbles.

  • Volume of cylinder up to water level:

Vs = πr²h = π(6/2)²(12) = π×(3 in)²×(12 in)

  • Volume of marbles:

Vm = 9(4/3πr³) = 9×(4/3×π(3/2)³) = 9×(4/3×π×(1.5 in)³)

  • Volume of water:

Vw = Vs - Vm = π×(3 in)²×(12 in) - 9×(4/3×π×(1.5 in)³)

Correct choice is C

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4 years ago
Pleaseeee answer correctly and ASAP!!!
shusha [124]

Answer:

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2 years ago
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A rectangle has a length that is 9 inches less than twice its width. The area of the rectangle is 180 square inches.
k0ka [10]

Answer:

Step-by-step explanation:

a) Let the width = w

Two times its width = 2*w = 2w

9 inches less than 2w = 2w - 9

Length = 2w - 9

Area of rectangle = length *width = 180 square inches

(2w - 9 ) * w = 180

2w*w - 9*w = 180

2w² - 9w - 180 = 0

b) sum = -9

Product= -360

Factors  = -24 , 15    {15 *[-24] = -360 and 15 + (-24) = -9 }

2w² - 9w - 180 = 0

2w² - 24w + 15w - 180 = 0

2w(w - 12w) + 15(w - 12) = 0

(w -12) (2w + 15) = 0

{Ignore 2w + 15 = 0 as measurements cannot be a -ve value}

w - 12 = 0

w = 12 inches

l = 2w -9

 = 2*12 - 9

= 24 - 9

l = 15

length = 15 inches

Width = 12 inches

c) Perimeter = 2 *(length + width)

                     = 2*(15 + 12)

                     = 2 * 27

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3 years ago
Write the equation of a line that includes the point (-4,0) and has a slope of -3/5 in slope intercept form
dolphi86 [110]
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  y = mx +b
the value "m" is called the slope, and the value "b" is called the intercept.

There is another form for the equation of a line, called "point-slope form".
  y = m(x -h) +k
where m is still the slope and (h, k) correspond to the (x, y) of the point.

If you write the equation of your line in this "point-slope form", it is easily manipulated to be in the "slope-intercept form".
Fill in
  m = (-3/5)
  h = -4
  k = 0
y = (-3/5)(x -(-4)) +0

Now, you simplify this by using the distributive property.
  y = (-3/5)x -(3/5)*4
  y = (-3/5)x -12/5 . . . . . . . . . the desired equation

_____
Your understanding of math improves immensely when you become familiar with the terminology. A lot of the rest of it is pattern matching--identifying the parts of one expression that correspond to the parts of another one.

(You will see another version of the "point-slope form", but I find this one the easiest to use for manipulating the equation to other forms.)

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olganol [36]

Answer: I think that the answer is either 11 avocados or 9

Step-by-step explanation:

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If this is wrong I am sorry!

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3 years ago
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