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Irina-Kira [14]
3 years ago
15

PLEASE HELP ASAP!!

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
8 0

For this case we have that by definition, the volume of a cone is given by:

V = \frac {\pi * r ^ 2 * h} {3}

Where:

r: It is the radius of the cone

h: It is the height of the cone

According to the statement data we have:

r = 4 \ cm\\h = 3 \ cm

Substituting we have:

V = \frac {\pi * (4) ^ 2 * 3} {3}\\V = \frac {\pi * 16 * 3} {3}\\V = \frac {\pi * 48} {3}\\V = 16 \pi \ cm ^ 3

Thus, the volume of the cone is 16 \pi \ cm ^ 3

Answer:

OPTION C

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Scott made 3 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 3 necklaces
pantera1 [17]

Answer:

$2.90

Step-by-step explanation:

<u>Lets look at the information given:</u>

Scott made 3 necklaces

$14.40 is the cost for both the beads and pendants for all 3 necklaces

$5.70 was the cost of just beads for all 3 necklaces

Each necklace has 1 pendant

The first step to solving this equation is subtracting the cost of the beads from the total cost for the necklaces:

$14.40 - $5.70= $8.70

Now we know that cost for the 3 pendants for all 3 necklaces was $8.70, but we need to find how much EACH pendant costs. To find out, we simply divide the total cost for all 3 pendants by 3:

$8.70 ÷ 3 = $2.90

So each pendent costs $2.90

6 0
3 years ago
Refer to the information in number 1 above to answer this question and exercise #6 below. Write an equation expressing your mont
Anon25 [30]
Given that the monthly cell phone bill is determined by a fixed monthly fee of $35 for 300 anytime minutes and $.40 for each additional minute used.

Dependent variables can be the result of more than one independent variable.

Consider your phone bill as presented above. Aside from being charged for minutes over 300, you are charged $1.25 for each directory assistance call and $.75 per minute for long distance roaming calls. You also have to contribute at least $1.50 to the federally required Universal Service Fund per month and this value may vary on your phone bill but is not an independent variable.

<span>To write an equation expressing your monthly cost using the below independent and dependent variables.

Let x = additional minutes used, then the cost for additional minutes used is given by 0.4x.

Let d = number of directory assistance calls made, then the cost for directory assisitance is given by 1.25d.

Let r = number of long distance minutes used, then the cost for long distance minutes is given by 0.75r.

Let u = USF monthly charge.

Let y = total monthly bill, therefore the total monthly bill is given by

y = 0.4x + 1.25d + 0.75r + u</span>
4 0
3 years ago
-2x + 4 = 3<br>how would you solve this problem?​
ikadub [295]
-2x+4=3
move the 4

-2x+4=3
-4 -4

-2x=-1
then you would move the -2 by using division

-2x=-1
__ __
-2 -2

x=0.5
4 0
3 years ago
What is the value of x in the figure?*
ANTONII [103]

Answer:

<h2>x=25</h2>

Step-by-step explanation:

according to the question

the equation is

130+2x=180

2x=180-130

2x=50

x=25

8 0
3 years ago
The perimeter of an equilateral triangle is 83 inches. If the length of each side is (2x -3), find the value of x.
Minchanka [31]

Answer:

x = 15 \frac{1}{3}

Step-by-step explanation:

Equilateral triangles have 3 equal sides.

Thus, perimeter of triangle

= 3(2x -3)

= 3(2x) +3(-3) <em>(</em><em>expand</em><em>)</em>

= (6x -9) inches

Given that the perimeter is 83 inches,

6x -9= 83

6x= 83 +9 <em>(</em><em>+</em><em>9</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

6x= 92

x = 15 \frac{1}{3}

6 0
3 years ago
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